third-party libs

This commit is contained in:
Benjamin Palko 2026-10-14 15:54:34 -04:00
parent f836927d3a
commit b154ee9266
3667 changed files with 854591 additions and 0 deletions

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#
# OpenSSL/crypto/bn/Makefile
#
DIR= bn
TOP= ../..
CC= cc
CPP= $(CC) -E
INCLUDES= -I.. -I$(TOP) -I../../include
CFLAG=-g
MAKEFILE= Makefile
AR= ar r
BN_ASM= bn_asm.o
CFLAGS= $(INCLUDES) $(CFLAG)
ASFLAGS= $(INCLUDES) $(ASFLAG)
AFLAGS= $(ASFLAGS)
GENERAL=Makefile
TEST=bntest.c exptest.c
APPS=
LIB=$(TOP)/libcrypto.a
LIBSRC= bn_add.c bn_div.c bn_exp.c bn_lib.c bn_ctx.c bn_mul.c bn_mod.c \
bn_print.c bn_rand.c bn_shift.c bn_word.c bn_blind.c \
bn_kron.c bn_sqrt.c bn_gcd.c bn_prime.c bn_err.c bn_sqr.c bn_asm.c \
bn_recp.c bn_mont.c bn_mpi.c bn_exp2.c bn_gf2m.c bn_nist.c \
bn_depr.c bn_const.c
LIBOBJ= bn_add.o bn_div.o bn_exp.o bn_lib.o bn_ctx.o bn_mul.o bn_mod.o \
bn_print.o bn_rand.o bn_shift.o bn_word.o bn_blind.o \
bn_kron.o bn_sqrt.o bn_gcd.o bn_prime.o bn_err.o bn_sqr.o $(BN_ASM) \
bn_recp.o bn_mont.o bn_mpi.o bn_exp2.o bn_gf2m.o bn_nist.o \
bn_depr.o bn_const.o
SRC= $(LIBSRC)
EXHEADER= bn.h
HEADER= bn_lcl.h bn_prime.h $(EXHEADER)
ALL= $(GENERAL) $(SRC) $(HEADER)
top:
(cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all)
all: lib
bn_prime.h: bn_prime.pl
$(PERL) bn_prime.pl >bn_prime.h
divtest: divtest.c ../../libcrypto.a
cc -I../../include divtest.c -o divtest ../../libcrypto.a
bnbug: bnbug.c ../../libcrypto.a top
cc -g -I../../include bnbug.c -o bnbug ../../libcrypto.a
lib: $(LIBOBJ)
$(AR) $(LIB) $(LIBOBJ)
$(RANLIB) $(LIB) || echo Never mind.
@touch lib
bn-586.s: asm/bn-586.pl ../perlasm/x86asm.pl
$(PERL) asm/bn-586.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
co-586.s: asm/co-586.pl ../perlasm/x86asm.pl
$(PERL) asm/co-586.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
x86-mont.s: asm/x86-mont.pl ../perlasm/x86asm.pl
$(PERL) asm/x86-mont.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
sparcv8.o: asm/sparcv8.S
$(CC) $(CFLAGS) -c asm/sparcv8.S
bn-sparcv9.o: asm/sparcv8plus.S
$(CC) $(CFLAGS) -c -o $@ asm/sparcv8plus.S
sparcv9a-mont.s: asm/sparcv9a-mont.pl
$(PERL) asm/sparcv9a-mont.pl $(CFLAGS) > $@
sparcv9-mont.s: asm/sparcv9-mont.pl
$(PERL) asm/sparcv9-mont.pl $(CFLAGS) > $@
bn-mips3.o: asm/mips3.s
@if [ "$(CC)" = "gcc" ]; then \
ABI=`expr "$(CFLAGS)" : ".*-mabi=\([n3264]*\)"` && \
as -$$ABI -O -o $@ asm/mips3.s; \
else $(CC) -c $(CFLAGS) -o $@ asm/mips3.s; fi
bn-s390x.o: asm/s390x.S
$(CC) $(CFLAGS) -c -o $@ asm/s390x.S
x86_64-gcc.o: asm/x86_64-gcc.c
$(CC) $(CFLAGS) -c -o $@ asm/x86_64-gcc.c
x86_64-mont.s: asm/x86_64-mont.pl
$(PERL) asm/x86_64-mont.pl $(PERLASM_SCHEME) > $@
bn-ia64.s: asm/ia64.S
$(CC) $(CFLAGS) -E asm/ia64.S > $@
# GNU assembler fails to compile PA-RISC2 modules, insist on calling
# vendor assembler...
pa-risc2W.o: asm/pa-risc2W.s
/usr/ccs/bin/as -o pa-risc2W.o asm/pa-risc2W.s
pa-risc2.o: asm/pa-risc2.s
/usr/ccs/bin/as -o pa-risc2.o asm/pa-risc2.s
# ppc - AIX, Linux, MacOS X...
bn-ppc.s: asm/ppc.pl; $(PERL) asm/ppc.pl $(PERLASM_SCHEME) $@
ppc-mont.s: asm/ppc-mont.pl;$(PERL) asm/ppc-mont.pl $(PERLASM_SCHEME) $@
alpha-mont.s: asm/alpha-mont.pl
$(PERL) $< | $(CC) -E - | tee $@ > /dev/null
# GNU make "catch all"
%-mont.s: asm/%-mont.pl; $(PERL) $< $(CFLAGS) > $@
files:
$(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO
links:
@$(PERL) $(TOP)/util/mklink.pl ../../include/openssl $(EXHEADER)
@$(PERL) $(TOP)/util/mklink.pl ../../test $(TEST)
@$(PERL) $(TOP)/util/mklink.pl ../../apps $(APPS)
install:
@[ -n "$(INSTALLTOP)" ] # should be set by top Makefile...
@headerlist="$(EXHEADER)"; for i in $$headerlist ; \
do \
(cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \
chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \
done;
exptest:
rm -f exptest
gcc -I../../include -g2 -ggdb -o exptest exptest.c ../../libcrypto.a
div:
rm -f a.out
gcc -I.. -g div.c ../../libcrypto.a
tags:
ctags $(SRC)
tests:
lint:
lint -DLINT $(INCLUDES) $(SRC)>fluff
depend:
@[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile...
$(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC)
dclean:
$(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new
mv -f Makefile.new $(MAKEFILE)
clean:
rm -f *.s *.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
# DO NOT DELETE THIS LINE -- make depend depends on it.
bn_add.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_add.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_add.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_add.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_add.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_add.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_add.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_add.c bn_lcl.h
bn_asm.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_asm.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_asm.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_asm.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_asm.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_asm.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_asm.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_asm.c bn_lcl.h
bn_blind.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_blind.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_blind.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_blind.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_blind.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_blind.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_blind.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_blind.c bn_lcl.h
bn_const.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
bn_const.o: ../../include/openssl/opensslconf.h
bn_const.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_const.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_const.o: ../../include/openssl/symhacks.h bn.h bn_const.c
bn_ctx.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_ctx.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_ctx.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_ctx.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_ctx.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_ctx.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_ctx.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_ctx.c bn_lcl.h
bn_depr.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_depr.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_depr.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_depr.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_depr.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_depr.o: ../../include/openssl/rand.h ../../include/openssl/safestack.h
bn_depr.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
bn_depr.o: ../cryptlib.h bn_depr.c bn_lcl.h
bn_div.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_div.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_div.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_div.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_div.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_div.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_div.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_div.c bn_lcl.h
bn_err.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_err.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
bn_err.o: ../../include/openssl/err.h ../../include/openssl/lhash.h
bn_err.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
bn_err.o: ../../include/openssl/ossl_typ.h ../../include/openssl/safestack.h
bn_err.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
bn_err.o: bn_err.c
bn_exp.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_exp.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_exp.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_exp.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_exp.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_exp.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_exp.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_exp.c bn_lcl.h
bn_exp2.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_exp2.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_exp2.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_exp2.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_exp2.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_exp2.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_exp2.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_exp2.c bn_lcl.h
bn_gcd.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_gcd.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_gcd.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_gcd.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_gcd.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_gcd.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_gcd.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_gcd.c bn_lcl.h
bn_gf2m.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_gf2m.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_gf2m.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_gf2m.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_gf2m.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_gf2m.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_gf2m.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_gf2m.c bn_lcl.h
bn_kron.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_kron.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_kron.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_kron.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_kron.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_kron.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_kron.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_kron.c bn_lcl.h
bn_lib.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_lib.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_lib.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_lib.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_lib.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_lib.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_lib.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_lib.c
bn_mod.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_mod.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_mod.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_mod.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_mod.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_mod.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_mod.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_mod.c
bn_mont.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_mont.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_mont.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_mont.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_mont.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_mont.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_mont.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_mont.c
bn_mpi.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_mpi.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_mpi.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_mpi.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_mpi.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_mpi.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_mpi.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_mpi.c
bn_mul.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_mul.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_mul.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_mul.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_mul.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_mul.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_mul.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_mul.c
bn_nist.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_nist.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_nist.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_nist.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_nist.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_nist.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_nist.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_nist.c
bn_prime.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_prime.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_prime.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_prime.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_prime.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_prime.o: ../../include/openssl/rand.h ../../include/openssl/safestack.h
bn_prime.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
bn_prime.o: ../cryptlib.h bn_lcl.h bn_prime.c bn_prime.h
bn_print.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_print.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_print.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_print.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_print.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_print.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_print.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_print.c
bn_rand.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_rand.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_rand.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_rand.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_rand.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_rand.o: ../../include/openssl/rand.h ../../include/openssl/safestack.h
bn_rand.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
bn_rand.o: ../cryptlib.h bn_lcl.h bn_rand.c
bn_recp.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_recp.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_recp.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_recp.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_recp.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_recp.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_recp.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_recp.c
bn_shift.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_shift.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_shift.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_shift.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_shift.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_shift.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_shift.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_shift.c
bn_sqr.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_sqr.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_sqr.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_sqr.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_sqr.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_sqr.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_sqr.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_sqr.c
bn_sqrt.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_sqrt.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_sqrt.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_sqrt.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_sqrt.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_sqrt.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_sqrt.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_sqrt.c
bn_word.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h
bn_word.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
bn_word.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
bn_word.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
bn_word.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
bn_word.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
bn_word.o: ../../include/openssl/symhacks.h ../cryptlib.h bn_lcl.h bn_word.c

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<OBSOLETE>
All assember in this directory are just version of the file
crypto/bn/bn_asm.c.
Quite a few of these files are just the assember output from gcc since on
quite a few machines they are 2 times faster than the system compiler.
For the x86, I have hand written assember because of the bad job all
compilers seem to do on it. This normally gives a 2 time speed up in the RSA
routines.
For the DEC alpha, I also hand wrote the assember (except the division which
is just the output from the C compiler pasted on the end of the file).
On the 2 alpha C compilers I had access to, it was not possible to do
64b x 64b -> 128b calculations (both long and the long long data types
were 64 bits). So the hand assember gives access to the 128 bit result and
a 2 times speedup :-).
There are 3 versions of assember for the HP PA-RISC.
pa-risc.s is the origional one which works fine and generated using gcc :-)
pa-risc2W.s and pa-risc2.s are 64 and 32-bit PA-RISC 2.0 implementations
by Chris Ruemmler from HP (with some help from the HP C compiler).
</OBSOLETE>

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#!/usr/bin/env perl
#
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# On 21264 RSA sign performance improves by 70/35/20/15 percent for
# 512/1024/2048/4096 bit key lengths. This is against vendor compiler
# instructed to '-tune host' code with in-line assembler. Other
# benchmarks improve by 15-20%. To anchor it to something else, the
# code provides approximately the same performance per GHz as AMD64.
# I.e. if you compare 1GHz 21264 and 2GHz Opteron, you'll observe ~2x
# difference.
# int bn_mul_mont(
$rp="a0"; # BN_ULONG *rp,
$ap="a1"; # const BN_ULONG *ap,
$bp="a2"; # const BN_ULONG *bp,
$np="a3"; # const BN_ULONG *np,
$n0="a4"; # const BN_ULONG *n0,
$num="a5"; # int num);
$lo0="t0";
$hi0="t1";
$lo1="t2";
$hi1="t3";
$aj="t4";
$bi="t5";
$nj="t6";
$tp="t7";
$alo="t8";
$ahi="t9";
$nlo="t10";
$nhi="t11";
$tj="t12";
$i="s3";
$j="s4";
$m1="s5";
$code=<<___;
#indef __linux__
#include <asm/regdef.h>
#else
#include <asm.h>
#include <regdef.h>
#endif
.text
.set noat
.set noreorder
.globl bn_mul_mont
.align 5
.ent bn_mul_mont
bn_mul_mont:
lda sp,-48(sp)
stq ra,0(sp)
stq s3,8(sp)
stq s4,16(sp)
stq s5,24(sp)
stq fp,32(sp)
mov sp,fp
.mask 0x0400f000,-48
.frame fp,48,ra
.prologue 0
.align 4
.set reorder
sextl $num,$num
mov 0,v0
cmplt $num,4,AT
bne AT,.Lexit
ldq $hi0,0($ap) # ap[0]
s8addq $num,16,AT
ldq $aj,8($ap)
subq sp,AT,sp
ldq $bi,0($bp) # bp[0]
lda AT,-4096(zero) # mov -4096,AT
ldq $n0,0($n0)
and sp,AT,sp
mulq $hi0,$bi,$lo0
ldq $hi1,0($np) # np[0]
umulh $hi0,$bi,$hi0
ldq $nj,8($np)
mulq $lo0,$n0,$m1
mulq $hi1,$m1,$lo1
umulh $hi1,$m1,$hi1
addq $lo1,$lo0,$lo1
cmpult $lo1,$lo0,AT
addq $hi1,AT,$hi1
mulq $aj,$bi,$alo
mov 2,$j
umulh $aj,$bi,$ahi
mov sp,$tp
mulq $nj,$m1,$nlo
s8addq $j,$ap,$aj
umulh $nj,$m1,$nhi
s8addq $j,$np,$nj
.align 4
.L1st:
.set noreorder
ldq $aj,0($aj)
addl $j,1,$j
ldq $nj,0($nj)
lda $tp,8($tp)
addq $alo,$hi0,$lo0
mulq $aj,$bi,$alo
cmpult $lo0,$hi0,AT
addq $nlo,$hi1,$lo1
mulq $nj,$m1,$nlo
addq $ahi,AT,$hi0
cmpult $lo1,$hi1,v0
cmplt $j,$num,$tj
umulh $aj,$bi,$ahi
addq $nhi,v0,$hi1
addq $lo1,$lo0,$lo1
s8addq $j,$ap,$aj
umulh $nj,$m1,$nhi
cmpult $lo1,$lo0,v0
addq $hi1,v0,$hi1
s8addq $j,$np,$nj
stq $lo1,-8($tp)
nop
unop
bne $tj,.L1st
.set reorder
addq $alo,$hi0,$lo0
addq $nlo,$hi1,$lo1
cmpult $lo0,$hi0,AT
cmpult $lo1,$hi1,v0
addq $ahi,AT,$hi0
addq $nhi,v0,$hi1
addq $lo1,$lo0,$lo1
cmpult $lo1,$lo0,v0
addq $hi1,v0,$hi1
stq $lo1,0($tp)
addq $hi1,$hi0,$hi1
cmpult $hi1,$hi0,AT
stq $hi1,8($tp)
stq AT,16($tp)
mov 1,$i
.align 4
.Louter:
s8addq $i,$bp,$bi
ldq $hi0,0($ap)
ldq $aj,8($ap)
ldq $bi,0($bi)
ldq $hi1,0($np)
ldq $nj,8($np)
ldq $tj,0(sp)
mulq $hi0,$bi,$lo0
umulh $hi0,$bi,$hi0
addq $lo0,$tj,$lo0
cmpult $lo0,$tj,AT
addq $hi0,AT,$hi0
mulq $lo0,$n0,$m1
mulq $hi1,$m1,$lo1
umulh $hi1,$m1,$hi1
addq $lo1,$lo0,$lo1
cmpult $lo1,$lo0,AT
mov 2,$j
addq $hi1,AT,$hi1
mulq $aj,$bi,$alo
mov sp,$tp
umulh $aj,$bi,$ahi
mulq $nj,$m1,$nlo
s8addq $j,$ap,$aj
umulh $nj,$m1,$nhi
.align 4
.Linner:
.set noreorder
ldq $tj,8($tp) #L0
nop #U1
ldq $aj,0($aj) #L1
s8addq $j,$np,$nj #U0
ldq $nj,0($nj) #L0
nop #U1
addq $alo,$hi0,$lo0 #L1
lda $tp,8($tp)
mulq $aj,$bi,$alo #U1
cmpult $lo0,$hi0,AT #L0
addq $nlo,$hi1,$lo1 #L1
addl $j,1,$j
mulq $nj,$m1,$nlo #U1
addq $ahi,AT,$hi0 #L0
addq $lo0,$tj,$lo0 #L1
cmpult $lo1,$hi1,v0 #U0
umulh $aj,$bi,$ahi #U1
cmpult $lo0,$tj,AT #L0
addq $lo1,$lo0,$lo1 #L1
addq $nhi,v0,$hi1 #U0
umulh $nj,$m1,$nhi #U1
s8addq $j,$ap,$aj #L0
cmpult $lo1,$lo0,v0 #L1
cmplt $j,$num,$tj #U0 # borrow $tj
addq $hi0,AT,$hi0 #L0
addq $hi1,v0,$hi1 #U1
stq $lo1,-8($tp) #L1
bne $tj,.Linner #U0
.set reorder
ldq $tj,8($tp)
addq $alo,$hi0,$lo0
addq $nlo,$hi1,$lo1
cmpult $lo0,$hi0,AT
cmpult $lo1,$hi1,v0
addq $ahi,AT,$hi0
addq $nhi,v0,$hi1
addq $lo0,$tj,$lo0
cmpult $lo0,$tj,AT
addq $hi0,AT,$hi0
ldq $tj,16($tp)
addq $lo1,$lo0,$j
cmpult $j,$lo0,v0
addq $hi1,v0,$hi1
addq $hi1,$hi0,$lo1
stq $j,0($tp)
cmpult $lo1,$hi0,$hi1
addq $lo1,$tj,$lo1
cmpult $lo1,$tj,AT
addl $i,1,$i
addq $hi1,AT,$hi1
stq $lo1,8($tp)
cmplt $i,$num,$tj # borrow $tj
stq $hi1,16($tp)
bne $tj,.Louter
s8addq $num,sp,$tj # &tp[num]
mov $rp,$bp # put rp aside
mov sp,$tp
mov sp,$ap
mov 0,$hi0 # clear borrow bit
.align 4
.Lsub: ldq $lo0,0($tp)
ldq $lo1,0($np)
lda $tp,8($tp)
lda $np,8($np)
subq $lo0,$lo1,$lo1 # tp[i]-np[i]
cmpult $lo0,$lo1,AT
subq $lo1,$hi0,$lo0
cmpult $lo1,$lo0,$hi0
or $hi0,AT,$hi0
stq $lo0,0($rp)
cmpult $tp,$tj,v0
lda $rp,8($rp)
bne v0,.Lsub
subq $hi1,$hi0,$hi0 # handle upmost overflow bit
mov sp,$tp
mov $bp,$rp # restore rp
and sp,$hi0,$ap
bic $bp,$hi0,$bp
bis $bp,$ap,$ap # ap=borrow?tp:rp
.align 4
.Lcopy: ldq $aj,0($ap) # copy or in-place refresh
lda $tp,8($tp)
lda $rp,8($rp)
lda $ap,8($ap)
stq zero,-8($tp) # zap tp
cmpult $tp,$tj,AT
stq $aj,-8($rp)
bne AT,.Lcopy
mov 1,v0
.Lexit:
.set noreorder
mov fp,sp
/*ldq ra,0(sp)*/
ldq s3,8(sp)
ldq s4,16(sp)
ldq s5,24(sp)
ldq fp,32(sp)
lda sp,48(sp)
ret (ra)
.end bn_mul_mont
.ascii "Montgomery Multiplication for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
.align 2
___
print $code;
close STDOUT;

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#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# January 2007.
# Montgomery multiplication for ARMv4.
#
# Performance improvement naturally varies among CPU implementations
# and compilers. The code was observed to provide +65-35% improvement
# [depending on key length, less for longer keys] on ARM920T, and
# +115-80% on Intel IXP425. This is compared to pre-bn_mul_mont code
# base and compiler generated code with in-lined umull and even umlal
# instructions. The latter means that this code didn't really have an
# "advantage" of utilizing some "secret" instruction.
#
# The code is interoperable with Thumb ISA and is rather compact, less
# than 1/2KB. Windows CE port would be trivial, as it's exclusively
# about decorations, ABI and instruction syntax are identical.
$num="r0"; # starts as num argument, but holds &tp[num-1]
$ap="r1";
$bp="r2"; $bi="r2"; $rp="r2";
$np="r3";
$tp="r4";
$aj="r5";
$nj="r6";
$tj="r7";
$n0="r8";
########### # r9 is reserved by ELF as platform specific, e.g. TLS pointer
$alo="r10"; # sl, gcc uses it to keep @GOT
$ahi="r11"; # fp
$nlo="r12"; # ip
########### # r13 is stack pointer
$nhi="r14"; # lr
########### # r15 is program counter
#### argument block layout relative to &tp[num-1], a.k.a. $num
$_rp="$num,#12*4";
# ap permanently resides in r1
$_bp="$num,#13*4";
# np permanently resides in r3
$_n0="$num,#14*4";
$_num="$num,#15*4"; $_bpend=$_num;
$code=<<___;
.text
.global bn_mul_mont
.type bn_mul_mont,%function
.align 2
bn_mul_mont:
stmdb sp!,{r0,r2} @ sp points at argument block
ldr $num,[sp,#3*4] @ load num
cmp $num,#2
movlt r0,#0
addlt sp,sp,#2*4
blt .Labrt
stmdb sp!,{r4-r12,lr} @ save 10 registers
mov $num,$num,lsl#2 @ rescale $num for byte count
sub sp,sp,$num @ alloca(4*num)
sub sp,sp,#4 @ +extra dword
sub $num,$num,#4 @ "num=num-1"
add $tp,$bp,$num @ &bp[num-1]
add $num,sp,$num @ $num to point at &tp[num-1]
ldr $n0,[$_n0] @ &n0
ldr $bi,[$bp] @ bp[0]
ldr $aj,[$ap],#4 @ ap[0],ap++
ldr $nj,[$np],#4 @ np[0],np++
ldr $n0,[$n0] @ *n0
str $tp,[$_bpend] @ save &bp[num]
umull $alo,$ahi,$aj,$bi @ ap[0]*bp[0]
str $n0,[$_n0] @ save n0 value
mul $n0,$alo,$n0 @ "tp[0]"*n0
mov $nlo,#0
umlal $alo,$nlo,$nj,$n0 @ np[0]*n0+"t[0]"
mov $tp,sp
.L1st:
ldr $aj,[$ap],#4 @ ap[j],ap++
mov $alo,$ahi
mov $ahi,#0
umlal $alo,$ahi,$aj,$bi @ ap[j]*bp[0]
ldr $nj,[$np],#4 @ np[j],np++
mov $nhi,#0
umlal $nlo,$nhi,$nj,$n0 @ np[j]*n0
adds $nlo,$nlo,$alo
str $nlo,[$tp],#4 @ tp[j-1]=,tp++
adc $nlo,$nhi,#0
cmp $tp,$num
bne .L1st
adds $nlo,$nlo,$ahi
mov $nhi,#0
adc $nhi,$nhi,#0
ldr $tp,[$_bp] @ restore bp
str $nlo,[$num] @ tp[num-1]=
ldr $n0,[$_n0] @ restore n0
str $nhi,[$num,#4] @ tp[num]=
.Louter:
sub $tj,$num,sp @ "original" $num-1 value
sub $ap,$ap,$tj @ "rewind" ap to &ap[1]
sub $np,$np,$tj @ "rewind" np to &np[1]
ldr $bi,[$tp,#4]! @ *(++bp)
ldr $aj,[$ap,#-4] @ ap[0]
ldr $nj,[$np,#-4] @ np[0]
ldr $alo,[sp] @ tp[0]
ldr $tj,[sp,#4] @ tp[1]
mov $ahi,#0
umlal $alo,$ahi,$aj,$bi @ ap[0]*bp[i]+tp[0]
str $tp,[$_bp] @ save bp
mul $n0,$alo,$n0
mov $nlo,#0
umlal $alo,$nlo,$nj,$n0 @ np[0]*n0+"tp[0]"
mov $tp,sp
.Linner:
ldr $aj,[$ap],#4 @ ap[j],ap++
adds $alo,$ahi,$tj @ +=tp[j]
mov $ahi,#0
umlal $alo,$ahi,$aj,$bi @ ap[j]*bp[i]
ldr $nj,[$np],#4 @ np[j],np++
mov $nhi,#0
umlal $nlo,$nhi,$nj,$n0 @ np[j]*n0
ldr $tj,[$tp,#8] @ tp[j+1]
adc $ahi,$ahi,#0
adds $nlo,$nlo,$alo
str $nlo,[$tp],#4 @ tp[j-1]=,tp++
adc $nlo,$nhi,#0
cmp $tp,$num
bne .Linner
adds $nlo,$nlo,$ahi
mov $nhi,#0
adc $nhi,$nhi,#0
adds $nlo,$nlo,$tj
adc $nhi,$nhi,#0
ldr $tp,[$_bp] @ restore bp
ldr $tj,[$_bpend] @ restore &bp[num]
str $nlo,[$num] @ tp[num-1]=
ldr $n0,[$_n0] @ restore n0
str $nhi,[$num,#4] @ tp[num]=
cmp $tp,$tj
bne .Louter
ldr $rp,[$_rp] @ pull rp
add $num,$num,#4 @ $num to point at &tp[num]
sub $aj,$num,sp @ "original" num value
mov $tp,sp @ "rewind" $tp
mov $ap,$tp @ "borrow" $ap
sub $np,$np,$aj @ "rewind" $np to &np[0]
subs $tj,$tj,$tj @ "clear" carry flag
.Lsub: ldr $tj,[$tp],#4
ldr $nj,[$np],#4
sbcs $tj,$tj,$nj @ tp[j]-np[j]
str $tj,[$rp],#4 @ rp[j]=
teq $tp,$num @ preserve carry
bne .Lsub
sbcs $nhi,$nhi,#0 @ upmost carry
mov $tp,sp @ "rewind" $tp
sub $rp,$rp,$aj @ "rewind" $rp
and $ap,$tp,$nhi
bic $np,$rp,$nhi
orr $ap,$ap,$np @ ap=borrow?tp:rp
.Lcopy: ldr $tj,[$ap],#4 @ copy or in-place refresh
str sp,[$tp],#4 @ zap tp
str $tj,[$rp],#4
cmp $tp,$num
bne .Lcopy
add sp,$num,#4 @ skip over tp[num+1]
ldmia sp!,{r4-r12,lr} @ restore registers
add sp,sp,#2*4 @ skip over {r0,r2}
mov r0,#1
.Labrt: tst lr,#1
moveq pc,lr @ be binary compatible with V4, yet
bx lr @ interoperable with Thumb ISA:-)
.size bn_mul_mont,.-bn_mul_mont
.asciz "Montgomery multiplication for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
.align 2
___
$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
print $code;
close STDOUT;

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#!/usr/local/bin/perl
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],$0);
$sse2=0;
for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
&external_label("OPENSSL_ia32cap_P") if ($sse2);
&bn_mul_add_words("bn_mul_add_words");
&bn_mul_words("bn_mul_words");
&bn_sqr_words("bn_sqr_words");
&bn_div_words("bn_div_words");
&bn_add_words("bn_add_words");
&bn_sub_words("bn_sub_words");
&bn_sub_part_words("bn_sub_part_words");
&asm_finish();
sub bn_mul_add_words
{
local($name)=@_;
&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
$r="eax";
$a="edx";
$c="ecx";
if ($sse2) {
&picmeup("eax","OPENSSL_ia32cap_P");
&bt(&DWP(0,"eax"),26);
&jnc(&label("maw_non_sse2"));
&mov($r,&wparam(0));
&mov($a,&wparam(1));
&mov($c,&wparam(2));
&movd("mm0",&wparam(3)); # mm0 = w
&pxor("mm1","mm1"); # mm1 = carry_in
&jmp(&label("maw_sse2_entry"));
&set_label("maw_sse2_unrolled",16);
&movd("mm3",&DWP(0,$r,"",0)); # mm3 = r[0]
&paddq("mm1","mm3"); # mm1 = carry_in + r[0]
&movd("mm2",&DWP(0,$a,"",0)); # mm2 = a[0]
&pmuludq("mm2","mm0"); # mm2 = w*a[0]
&movd("mm4",&DWP(4,$a,"",0)); # mm4 = a[1]
&pmuludq("mm4","mm0"); # mm4 = w*a[1]
&movd("mm6",&DWP(8,$a,"",0)); # mm6 = a[2]
&pmuludq("mm6","mm0"); # mm6 = w*a[2]
&movd("mm7",&DWP(12,$a,"",0)); # mm7 = a[3]
&pmuludq("mm7","mm0"); # mm7 = w*a[3]
&paddq("mm1","mm2"); # mm1 = carry_in + r[0] + w*a[0]
&movd("mm3",&DWP(4,$r,"",0)); # mm3 = r[1]
&paddq("mm3","mm4"); # mm3 = r[1] + w*a[1]
&movd("mm5",&DWP(8,$r,"",0)); # mm5 = r[2]
&paddq("mm5","mm6"); # mm5 = r[2] + w*a[2]
&movd("mm4",&DWP(12,$r,"",0)); # mm4 = r[3]
&paddq("mm7","mm4"); # mm7 = r[3] + w*a[3]
&movd(&DWP(0,$r,"",0),"mm1");
&movd("mm2",&DWP(16,$a,"",0)); # mm2 = a[4]
&pmuludq("mm2","mm0"); # mm2 = w*a[4]
&psrlq("mm1",32); # mm1 = carry0
&movd("mm4",&DWP(20,$a,"",0)); # mm4 = a[5]
&pmuludq("mm4","mm0"); # mm4 = w*a[5]
&paddq("mm1","mm3"); # mm1 = carry0 + r[1] + w*a[1]
&movd("mm6",&DWP(24,$a,"",0)); # mm6 = a[6]
&pmuludq("mm6","mm0"); # mm6 = w*a[6]
&movd(&DWP(4,$r,"",0),"mm1");
&psrlq("mm1",32); # mm1 = carry1
&movd("mm3",&DWP(28,$a,"",0)); # mm3 = a[7]
&add($a,32);
&pmuludq("mm3","mm0"); # mm3 = w*a[7]
&paddq("mm1","mm5"); # mm1 = carry1 + r[2] + w*a[2]
&movd("mm5",&DWP(16,$r,"",0)); # mm5 = r[4]
&paddq("mm2","mm5"); # mm2 = r[4] + w*a[4]
&movd(&DWP(8,$r,"",0),"mm1");
&psrlq("mm1",32); # mm1 = carry2
&paddq("mm1","mm7"); # mm1 = carry2 + r[3] + w*a[3]
&movd("mm5",&DWP(20,$r,"",0)); # mm5 = r[5]
&paddq("mm4","mm5"); # mm4 = r[5] + w*a[5]
&movd(&DWP(12,$r,"",0),"mm1");
&psrlq("mm1",32); # mm1 = carry3
&paddq("mm1","mm2"); # mm1 = carry3 + r[4] + w*a[4]
&movd("mm5",&DWP(24,$r,"",0)); # mm5 = r[6]
&paddq("mm6","mm5"); # mm6 = r[6] + w*a[6]
&movd(&DWP(16,$r,"",0),"mm1");
&psrlq("mm1",32); # mm1 = carry4
&paddq("mm1","mm4"); # mm1 = carry4 + r[5] + w*a[5]
&movd("mm5",&DWP(28,$r,"",0)); # mm5 = r[7]
&paddq("mm3","mm5"); # mm3 = r[7] + w*a[7]
&movd(&DWP(20,$r,"",0),"mm1");
&psrlq("mm1",32); # mm1 = carry5
&paddq("mm1","mm6"); # mm1 = carry5 + r[6] + w*a[6]
&movd(&DWP(24,$r,"",0),"mm1");
&psrlq("mm1",32); # mm1 = carry6
&paddq("mm1","mm3"); # mm1 = carry6 + r[7] + w*a[7]
&movd(&DWP(28,$r,"",0),"mm1");
&lea($r,&DWP(32,$r));
&psrlq("mm1",32); # mm1 = carry_out
&sub($c,8);
&jz(&label("maw_sse2_exit"));
&set_label("maw_sse2_entry");
&test($c,0xfffffff8);
&jnz(&label("maw_sse2_unrolled"));
&set_label("maw_sse2_loop",4);
&movd("mm2",&DWP(0,$a)); # mm2 = a[i]
&movd("mm3",&DWP(0,$r)); # mm3 = r[i]
&pmuludq("mm2","mm0"); # a[i] *= w
&lea($a,&DWP(4,$a));
&paddq("mm1","mm3"); # carry += r[i]
&paddq("mm1","mm2"); # carry += a[i]*w
&movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
&sub($c,1);
&psrlq("mm1",32); # carry = carry_high
&lea($r,&DWP(4,$r));
&jnz(&label("maw_sse2_loop"));
&set_label("maw_sse2_exit");
&movd("eax","mm1"); # c = carry_out
&emms();
&ret();
&set_label("maw_non_sse2",16);
}
# function_begin prologue
&push("ebp");
&push("ebx");
&push("esi");
&push("edi");
&comment("");
$Low="eax";
$High="edx";
$a="ebx";
$w="ebp";
$r="edi";
$c="esi";
&xor($c,$c); # clear carry
&mov($r,&wparam(0)); #
&mov("ecx",&wparam(2)); #
&mov($a,&wparam(1)); #
&and("ecx",0xfffffff8); # num / 8
&mov($w,&wparam(3)); #
&push("ecx"); # Up the stack for a tmp variable
&jz(&label("maw_finish"));
&set_label("maw_loop",16);
for ($i=0; $i<32; $i+=4)
{
&comment("Round $i");
&mov("eax",&DWP($i,$a)); # *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+= c
&adc("edx",0); # H(t)+=carry
&add("eax",&DWP($i,$r)); # L(t)+= *r
&adc("edx",0); # H(t)+=carry
&mov(&DWP($i,$r),"eax"); # *r= L(t);
&mov($c,"edx"); # c= H(t);
}
&comment("");
&sub("ecx",8);
&lea($a,&DWP(32,$a));
&lea($r,&DWP(32,$r));
&jnz(&label("maw_loop"));
&set_label("maw_finish",0);
&mov("ecx",&wparam(2)); # get num
&and("ecx",7);
&jnz(&label("maw_finish2")); # helps branch prediction
&jmp(&label("maw_end"));
&set_label("maw_finish2",1);
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov("eax",&DWP($i*4,$a)); # *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+=c
&adc("edx",0); # H(t)+=carry
&add("eax",&DWP($i*4,$r)); # L(t)+= *r
&adc("edx",0); # H(t)+=carry
&dec("ecx") if ($i != 7-1);
&mov(&DWP($i*4,$r),"eax"); # *r= L(t);
&mov($c,"edx"); # c= H(t);
&jz(&label("maw_end")) if ($i != 7-1);
}
&set_label("maw_end",0);
&mov("eax",$c);
&pop("ecx"); # clear variable from
&function_end($name);
}
sub bn_mul_words
{
local($name)=@_;
&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
$r="eax";
$a="edx";
$c="ecx";
if ($sse2) {
&picmeup("eax","OPENSSL_ia32cap_P");
&bt(&DWP(0,"eax"),26);
&jnc(&label("mw_non_sse2"));
&mov($r,&wparam(0));
&mov($a,&wparam(1));
&mov($c,&wparam(2));
&movd("mm0",&wparam(3)); # mm0 = w
&pxor("mm1","mm1"); # mm1 = carry = 0
&set_label("mw_sse2_loop",16);
&movd("mm2",&DWP(0,$a)); # mm2 = a[i]
&pmuludq("mm2","mm0"); # a[i] *= w
&lea($a,&DWP(4,$a));
&paddq("mm1","mm2"); # carry += a[i]*w
&movd(&DWP(0,$r),"mm1"); # r[i] = carry_low
&sub($c,1);
&psrlq("mm1",32); # carry = carry_high
&lea($r,&DWP(4,$r));
&jnz(&label("mw_sse2_loop"));
&movd("eax","mm1"); # return carry
&emms();
&ret();
&set_label("mw_non_sse2",16);
}
# function_begin prologue
&push("ebp");
&push("ebx");
&push("esi");
&push("edi");
&comment("");
$Low="eax";
$High="edx";
$a="ebx";
$w="ecx";
$r="edi";
$c="esi";
$num="ebp";
&xor($c,$c); # clear carry
&mov($r,&wparam(0)); #
&mov($a,&wparam(1)); #
&mov($num,&wparam(2)); #
&mov($w,&wparam(3)); #
&and($num,0xfffffff8); # num / 8
&jz(&label("mw_finish"));
&set_label("mw_loop",0);
for ($i=0; $i<32; $i+=4)
{
&comment("Round $i");
&mov("eax",&DWP($i,$a,"",0)); # *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+=c
# XXX
&adc("edx",0); # H(t)+=carry
&mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
&mov($c,"edx"); # c= H(t);
}
&comment("");
&add($a,32);
&add($r,32);
&sub($num,8);
&jz(&label("mw_finish"));
&jmp(&label("mw_loop"));
&set_label("mw_finish",0);
&mov($num,&wparam(2)); # get num
&and($num,7);
&jnz(&label("mw_finish2"));
&jmp(&label("mw_end"));
&set_label("mw_finish2",1);
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov("eax",&DWP($i*4,$a,"",0));# *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+=c
# XXX
&adc("edx",0); # H(t)+=carry
&mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t);
&mov($c,"edx"); # c= H(t);
&dec($num) if ($i != 7-1);
&jz(&label("mw_end")) if ($i != 7-1);
}
&set_label("mw_end",0);
&mov("eax",$c);
&function_end($name);
}
sub bn_sqr_words
{
local($name)=@_;
&function_begin_B($name,$sse2?"EXTRN\t_OPENSSL_ia32cap_P:DWORD":"");
$r="eax";
$a="edx";
$c="ecx";
if ($sse2) {
&picmeup("eax","OPENSSL_ia32cap_P");
&bt(&DWP(0,"eax"),26);
&jnc(&label("sqr_non_sse2"));
&mov($r,&wparam(0));
&mov($a,&wparam(1));
&mov($c,&wparam(2));
&set_label("sqr_sse2_loop",16);
&movd("mm0",&DWP(0,$a)); # mm0 = a[i]
&pmuludq("mm0","mm0"); # a[i] *= a[i]
&lea($a,&DWP(4,$a)); # a++
&movq(&QWP(0,$r),"mm0"); # r[i] = a[i]*a[i]
&sub($c,1);
&lea($r,&DWP(8,$r)); # r += 2
&jnz(&label("sqr_sse2_loop"));
&emms();
&ret();
&set_label("sqr_non_sse2",16);
}
# function_begin prologue
&push("ebp");
&push("ebx");
&push("esi");
&push("edi");
&comment("");
$r="esi";
$a="edi";
$num="ebx";
&mov($r,&wparam(0)); #
&mov($a,&wparam(1)); #
&mov($num,&wparam(2)); #
&and($num,0xfffffff8); # num / 8
&jz(&label("sw_finish"));
&set_label("sw_loop",0);
for ($i=0; $i<32; $i+=4)
{
&comment("Round $i");
&mov("eax",&DWP($i,$a,"",0)); # *a
# XXX
&mul("eax"); # *a * *a
&mov(&DWP($i*2,$r,"",0),"eax"); #
&mov(&DWP($i*2+4,$r,"",0),"edx");#
}
&comment("");
&add($a,32);
&add($r,64);
&sub($num,8);
&jnz(&label("sw_loop"));
&set_label("sw_finish",0);
&mov($num,&wparam(2)); # get num
&and($num,7);
&jz(&label("sw_end"));
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov("eax",&DWP($i*4,$a,"",0)); # *a
# XXX
&mul("eax"); # *a * *a
&mov(&DWP($i*8,$r,"",0),"eax"); #
&dec($num) if ($i != 7-1);
&mov(&DWP($i*8+4,$r,"",0),"edx");
&jz(&label("sw_end")) if ($i != 7-1);
}
&set_label("sw_end",0);
&function_end($name);
}
sub bn_div_words
{
local($name)=@_;
&function_begin_B($name,"");
&mov("edx",&wparam(0)); #
&mov("eax",&wparam(1)); #
&mov("ecx",&wparam(2)); #
&div("ecx");
&ret();
&function_end_B($name);
}
sub bn_add_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$a="esi";
$b="edi";
$c="eax";
$r="ebx";
$tmp1="ecx";
$tmp2="edx";
$num="ebp";
&mov($r,&wparam(0)); # get r
&mov($a,&wparam(1)); # get a
&mov($b,&wparam(2)); # get b
&mov($num,&wparam(3)); # get num
&xor($c,$c); # clear carry
&and($num,0xfffffff8); # num / 8
&jz(&label("aw_finish"));
&set_label("aw_loop",0);
for ($i=0; $i<8; $i++)
{
&comment("Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
&add($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&add($tmp1,$tmp2);
&adc($c,0);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
}
&comment("");
&add($a,32);
&add($b,32);
&add($r,32);
&sub($num,8);
&jnz(&label("aw_loop"));
&set_label("aw_finish",0);
&mov($num,&wparam(3)); # get num
&and($num,7);
&jz(&label("aw_end"));
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
&add($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&add($tmp1,$tmp2);
&adc($c,0);
&dec($num) if ($i != 6);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
&jz(&label("aw_end")) if ($i != 6);
}
&set_label("aw_end",0);
# &mov("eax",$c); # $c is "eax"
&function_end($name);
}
sub bn_sub_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$a="esi";
$b="edi";
$c="eax";
$r="ebx";
$tmp1="ecx";
$tmp2="edx";
$num="ebp";
&mov($r,&wparam(0)); # get r
&mov($a,&wparam(1)); # get a
&mov($b,&wparam(2)); # get b
&mov($num,&wparam(3)); # get num
&xor($c,$c); # clear carry
&and($num,0xfffffff8); # num / 8
&jz(&label("aw_finish"));
&set_label("aw_loop",0);
for ($i=0; $i<8; $i++)
{
&comment("Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
}
&comment("");
&add($a,32);
&add($b,32);
&add($r,32);
&sub($num,8);
&jnz(&label("aw_loop"));
&set_label("aw_finish",0);
&mov($num,&wparam(3)); # get num
&and($num,7);
&jz(&label("aw_end"));
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&dec($num) if ($i != 6);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
&jz(&label("aw_end")) if ($i != 6);
}
&set_label("aw_end",0);
# &mov("eax",$c); # $c is "eax"
&function_end($name);
}
sub bn_sub_part_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$a="esi";
$b="edi";
$c="eax";
$r="ebx";
$tmp1="ecx";
$tmp2="edx";
$num="ebp";
&mov($r,&wparam(0)); # get r
&mov($a,&wparam(1)); # get a
&mov($b,&wparam(2)); # get b
&mov($num,&wparam(3)); # get num
&xor($c,$c); # clear carry
&and($num,0xfffffff8); # num / 8
&jz(&label("aw_finish"));
&set_label("aw_loop",0);
for ($i=0; $i<8; $i++)
{
&comment("Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
}
&comment("");
&add($a,32);
&add($b,32);
&add($r,32);
&sub($num,8);
&jnz(&label("aw_loop"));
&set_label("aw_finish",0);
&mov($num,&wparam(3)); # get num
&and($num,7);
&jz(&label("aw_end"));
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov($tmp1,&DWP(0,$a,"",0)); # *a
&mov($tmp2,&DWP(0,$b,"",0));# *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&mov(&DWP(0,$r,"",0),$tmp1); # *r
&add($a, 4);
&add($b, 4);
&add($r, 4);
&dec($num) if ($i != 6);
&jz(&label("aw_end")) if ($i != 6);
}
&set_label("aw_end",0);
&cmp(&wparam(4),0);
&je(&label("pw_end"));
&mov($num,&wparam(4)); # get dl
&cmp($num,0);
&je(&label("pw_end"));
&jge(&label("pw_pos"));
&comment("pw_neg");
&mov($tmp2,0);
&sub($tmp2,$num);
&mov($num,$tmp2);
&and($num,0xfffffff8); # num / 8
&jz(&label("pw_neg_finish"));
&set_label("pw_neg_loop",0);
for ($i=0; $i<8; $i++)
{
&comment("dl<0 Round $i");
&mov($tmp1,0);
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
}
&comment("");
&add($b,32);
&add($r,32);
&sub($num,8);
&jnz(&label("pw_neg_loop"));
&set_label("pw_neg_finish",0);
&mov($tmp2,&wparam(4)); # get dl
&mov($num,0);
&sub($num,$tmp2);
&and($num,7);
&jz(&label("pw_end"));
for ($i=0; $i<7; $i++)
{
&comment("dl<0 Tail Round $i");
&mov($tmp1,0);
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&dec($num) if ($i != 6);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
&jz(&label("pw_end")) if ($i != 6);
}
&jmp(&label("pw_end"));
&set_label("pw_pos",0);
&and($num,0xfffffff8); # num / 8
&jz(&label("pw_pos_finish"));
&set_label("pw_pos_loop",0);
for ($i=0; $i<8; $i++)
{
&comment("dl>0 Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&sub($tmp1,$c);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
&jnc(&label("pw_nc".$i));
}
&comment("");
&add($a,32);
&add($r,32);
&sub($num,8);
&jnz(&label("pw_pos_loop"));
&set_label("pw_pos_finish",0);
&mov($num,&wparam(4)); # get dl
&and($num,7);
&jz(&label("pw_end"));
for ($i=0; $i<7; $i++)
{
&comment("dl>0 Tail Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&sub($tmp1,$c);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
&jnc(&label("pw_tail_nc".$i));
&dec($num) if ($i != 6);
&jz(&label("pw_end")) if ($i != 6);
}
&mov($c,1);
&jmp(&label("pw_end"));
&set_label("pw_nc_loop",0);
for ($i=0; $i<8; $i++)
{
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
&set_label("pw_nc".$i,0);
}
&comment("");
&add($a,32);
&add($r,32);
&sub($num,8);
&jnz(&label("pw_nc_loop"));
&mov($num,&wparam(4)); # get dl
&and($num,7);
&jz(&label("pw_nc_end"));
for ($i=0; $i<7; $i++)
{
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
&set_label("pw_tail_nc".$i,0);
&dec($num) if ($i != 6);
&jz(&label("pw_nc_end")) if ($i != 6);
}
&set_label("pw_nc_end",0);
&mov($c,0);
&set_label("pw_end",0);
# &mov("eax",$c); # $c is "eax"
&function_end($name);
}

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@ -0,0 +1,287 @@
#!/usr/local/bin/perl
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],$0);
&bn_mul_comba("bn_mul_comba8",8);
&bn_mul_comba("bn_mul_comba4",4);
&bn_sqr_comba("bn_sqr_comba8",8);
&bn_sqr_comba("bn_sqr_comba4",4);
&asm_finish();
sub mul_add_c
{
local($a,$ai,$b,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
# pos == -1 if eax and edx are pre-loaded, 0 to load from next
# words, and 1 if load return value
&comment("mul a[$ai]*b[$bi]");
# "eax" and "edx" will always be pre-loaded.
# &mov("eax",&DWP($ai*4,$a,"",0)) ;
# &mov("edx",&DWP($bi*4,$b,"",0));
&mul("edx");
&add($c0,"eax");
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # laod next a
&mov("eax",&wparam(0)) if $pos > 0; # load r[]
###
&adc($c1,"edx");
&mov("edx",&DWP(($nb)*4,$b,"",0)) if $pos == 0; # laod next b
&mov("edx",&DWP(($nb)*4,$b,"",0)) if $pos == 1; # laod next b
###
&adc($c2,0);
# is pos > 1, it means it is the last loop
&mov(&DWP($i*4,"eax","",0),$c0) if $pos > 0; # save r[];
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # laod next a
}
sub sqr_add_c
{
local($r,$a,$ai,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
# pos == -1 if eax and edx are pre-loaded, 0 to load from next
# words, and 1 if load return value
&comment("sqr a[$ai]*a[$bi]");
# "eax" and "edx" will always be pre-loaded.
# &mov("eax",&DWP($ai*4,$a,"",0)) ;
# &mov("edx",&DWP($bi*4,$b,"",0));
if ($ai == $bi)
{ &mul("eax");}
else
{ &mul("edx");}
&add($c0,"eax");
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # load next a
###
&adc($c1,"edx");
&mov("edx",&DWP(($nb)*4,$a,"",0)) if ($pos == 1) && ($na != $nb);
###
&adc($c2,0);
# is pos > 1, it means it is the last loop
&mov(&DWP($i*4,$r,"",0),$c0) if $pos > 0; # save r[];
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # load next b
}
sub sqr_add_c2
{
local($r,$a,$ai,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
# pos == -1 if eax and edx are pre-loaded, 0 to load from next
# words, and 1 if load return value
&comment("sqr a[$ai]*a[$bi]");
# "eax" and "edx" will always be pre-loaded.
# &mov("eax",&DWP($ai*4,$a,"",0)) ;
# &mov("edx",&DWP($bi*4,$a,"",0));
if ($ai == $bi)
{ &mul("eax");}
else
{ &mul("edx");}
&add("eax","eax");
###
&adc("edx","edx");
###
&adc($c2,0);
&add($c0,"eax");
&adc($c1,"edx");
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # load next a
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # load next b
&adc($c2,0);
&mov(&DWP($i*4,$r,"",0),$c0) if $pos > 0; # save r[];
&mov("edx",&DWP(($nb)*4,$a,"",0)) if ($pos <= 1) && ($na != $nb);
###
}
sub bn_mul_comba
{
local($name,$num)=@_;
local($a,$b,$c0,$c1,$c2);
local($i,$as,$ae,$bs,$be,$ai,$bi);
local($tot,$end);
&function_begin_B($name,"");
$c0="ebx";
$c1="ecx";
$c2="ebp";
$a="esi";
$b="edi";
$as=0;
$ae=0;
$bs=0;
$be=0;
$tot=$num+$num-1;
&push("esi");
&mov($a,&wparam(1));
&push("edi");
&mov($b,&wparam(2));
&push("ebp");
&push("ebx");
&xor($c0,$c0);
&mov("eax",&DWP(0,$a,"",0)); # load the first word
&xor($c1,$c1);
&mov("edx",&DWP(0,$b,"",0)); # load the first second
for ($i=0; $i<$tot; $i++)
{
$ai=$as;
$bi=$bs;
$end=$be+1;
&comment("################## Calculate word $i");
for ($j=$bs; $j<$end; $j++)
{
&xor($c2,$c2) if ($j == $bs);
if (($j+1) == $end)
{
$v=1;
$v=2 if (($i+1) == $tot);
}
else
{ $v=0; }
if (($j+1) != $end)
{
$na=($ai-1);
$nb=($bi+1);
}
else
{
$na=$as+($i < ($num-1));
$nb=$bs+($i >= ($num-1));
}
#printf STDERR "[$ai,$bi] -> [$na,$nb]\n";
&mul_add_c($a,$ai,$b,$bi,$c0,$c1,$c2,$v,$i,$na,$nb);
if ($v)
{
&comment("saved r[$i]");
# &mov("eax",&wparam(0));
# &mov(&DWP($i*4,"eax","",0),$c0);
($c0,$c1,$c2)=($c1,$c2,$c0);
}
$ai--;
$bi++;
}
$as++ if ($i < ($num-1));
$ae++ if ($i >= ($num-1));
$bs++ if ($i >= ($num-1));
$be++ if ($i < ($num-1));
}
&comment("save r[$i]");
# &mov("eax",&wparam(0));
&mov(&DWP($i*4,"eax","",0),$c0);
&pop("ebx");
&pop("ebp");
&pop("edi");
&pop("esi");
&ret();
&function_end_B($name);
}
sub bn_sqr_comba
{
local($name,$num)=@_;
local($r,$a,$c0,$c1,$c2)=@_;
local($i,$as,$ae,$bs,$be,$ai,$bi);
local($b,$tot,$end,$half);
&function_begin_B($name,"");
$c0="ebx";
$c1="ecx";
$c2="ebp";
$a="esi";
$r="edi";
&push("esi");
&push("edi");
&push("ebp");
&push("ebx");
&mov($r,&wparam(0));
&mov($a,&wparam(1));
&xor($c0,$c0);
&xor($c1,$c1);
&mov("eax",&DWP(0,$a,"",0)); # load the first word
$as=0;
$ae=0;
$bs=0;
$be=0;
$tot=$num+$num-1;
for ($i=0; $i<$tot; $i++)
{
$ai=$as;
$bi=$bs;
$end=$be+1;
&comment("############### Calculate word $i");
for ($j=$bs; $j<$end; $j++)
{
&xor($c2,$c2) if ($j == $bs);
if (($ai-1) < ($bi+1))
{
$v=1;
$v=2 if ($i+1) == $tot;
}
else
{ $v=0; }
if (!$v)
{
$na=$ai-1;
$nb=$bi+1;
}
else
{
$na=$as+($i < ($num-1));
$nb=$bs+($i >= ($num-1));
}
if ($ai == $bi)
{
&sqr_add_c($r,$a,$ai,$bi,
$c0,$c1,$c2,$v,$i,$na,$nb);
}
else
{
&sqr_add_c2($r,$a,$ai,$bi,
$c0,$c1,$c2,$v,$i,$na,$nb);
}
if ($v)
{
&comment("saved r[$i]");
#&mov(&DWP($i*4,$r,"",0),$c0);
($c0,$c1,$c2)=($c1,$c2,$c0);
last;
}
$ai--;
$bi++;
}
$as++ if ($i < ($num-1));
$ae++ if ($i >= ($num-1));
$bs++ if ($i >= ($num-1));
$be++ if ($i < ($num-1));
}
&mov(&DWP($i*4,$r,"",0),$c0);
&pop("ebx");
&pop("ebp");
&pop("edi");
&pop("esi");
&ret();
&function_end_B($name);
}

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#!/usr/bin/env perl
#
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# This module doesn't present direct interest for OpenSSL, because it
# doesn't provide better performance for longer keys. While 512-bit
# RSA private key operations are 40% faster, 1024-bit ones are hardly
# faster at all, while longer key operations are slower by up to 20%.
# It might be of interest to embedded system developers though, as
# it's smaller than 1KB, yet offers ~3x improvement over compiler
# generated code.
#
# The module targets N32 and N64 MIPS ABIs and currently is a bit
# IRIX-centric, i.e. is likely to require adaptation for other OSes.
# int bn_mul_mont(
$rp="a0"; # BN_ULONG *rp,
$ap="a1"; # const BN_ULONG *ap,
$bp="a2"; # const BN_ULONG *bp,
$np="a3"; # const BN_ULONG *np,
$n0="a4"; # const BN_ULONG *n0,
$num="a5"; # int num);
$lo0="a6";
$hi0="a7";
$lo1="v0";
$hi1="v1";
$aj="t0";
$bi="t1";
$nj="t2";
$tp="t3";
$alo="s0";
$ahi="s1";
$nlo="s2";
$nhi="s3";
$tj="s4";
$i="s5";
$j="s6";
$fp="t8";
$m1="t9";
$FRAME=8*(2+8);
$code=<<___;
#include <asm.h>
#include <regdef.h>
.text
.set noat
.set reorder
.align 5
.globl bn_mul_mont
.ent bn_mul_mont
bn_mul_mont:
.set noreorder
PTR_SUB sp,64
move $fp,sp
.frame $fp,64,ra
slt AT,$num,4
li v0,0
beqzl AT,.Lproceed
nop
jr ra
PTR_ADD sp,$fp,64
.set reorder
.align 5
.Lproceed:
ld $n0,0($n0)
ld $bi,0($bp) # bp[0]
ld $aj,0($ap) # ap[0]
ld $nj,0($np) # np[0]
PTR_SUB sp,16 # place for two extra words
sll $num,3
li AT,-4096
PTR_SUB sp,$num
and sp,AT
sd s0,0($fp)
sd s1,8($fp)
sd s2,16($fp)
sd s3,24($fp)
sd s4,32($fp)
sd s5,40($fp)
sd s6,48($fp)
sd s7,56($fp)
dmultu $aj,$bi
ld $alo,8($ap)
ld $nlo,8($np)
mflo $lo0
mfhi $hi0
dmultu $lo0,$n0
mflo $m1
dmultu $alo,$bi
mflo $alo
mfhi $ahi
dmultu $nj,$m1
mflo $lo1
mfhi $hi1
dmultu $nlo,$m1
daddu $lo1,$lo0
sltu AT,$lo1,$lo0
daddu $hi1,AT
mflo $nlo
mfhi $nhi
move $tp,sp
li $j,16
.align 4
.L1st:
.set noreorder
PTR_ADD $aj,$ap,$j
ld $aj,($aj)
PTR_ADD $nj,$np,$j
ld $nj,($nj)
dmultu $aj,$bi
daddu $lo0,$alo,$hi0
daddu $lo1,$nlo,$hi1
sltu AT,$lo0,$hi0
sltu s7,$lo1,$hi1
daddu $hi0,$ahi,AT
daddu $hi1,$nhi,s7
mflo $alo
mfhi $ahi
daddu $lo1,$lo0
sltu AT,$lo1,$lo0
dmultu $nj,$m1
daddu $hi1,AT
addu $j,8
sd $lo1,($tp)
sltu s7,$j,$num
mflo $nlo
mfhi $nhi
bnez s7,.L1st
PTR_ADD $tp,8
.set reorder
daddu $lo0,$alo,$hi0
sltu AT,$lo0,$hi0
daddu $hi0,$ahi,AT
daddu $lo1,$nlo,$hi1
sltu s7,$lo1,$hi1
daddu $hi1,$nhi,s7
daddu $lo1,$lo0
sltu AT,$lo1,$lo0
daddu $hi1,AT
sd $lo1,($tp)
daddu $hi1,$hi0
sltu AT,$hi1,$hi0
sd $hi1,8($tp)
sd AT,16($tp)
li $i,8
.align 4
.Louter:
PTR_ADD $bi,$bp,$i
ld $bi,($bi)
ld $aj,($ap)
ld $alo,8($ap)
ld $tj,(sp)
dmultu $aj,$bi
ld $nj,($np)
ld $nlo,8($np)
mflo $lo0
mfhi $hi0
daddu $lo0,$tj
dmultu $lo0,$n0
sltu AT,$lo0,$tj
daddu $hi0,AT
mflo $m1
dmultu $alo,$bi
mflo $alo
mfhi $ahi
dmultu $nj,$m1
mflo $lo1
mfhi $hi1
dmultu $nlo,$m1
daddu $lo1,$lo0
sltu AT,$lo1,$lo0
daddu $hi1,AT
mflo $nlo
mfhi $nhi
move $tp,sp
li $j,16
ld $tj,8($tp)
.align 4
.Linner:
.set noreorder
PTR_ADD $aj,$ap,$j
ld $aj,($aj)
PTR_ADD $nj,$np,$j
ld $nj,($nj)
dmultu $aj,$bi
daddu $lo0,$alo,$hi0
daddu $lo1,$nlo,$hi1
sltu AT,$lo0,$hi0
sltu s7,$lo1,$hi1
daddu $hi0,$ahi,AT
daddu $hi1,$nhi,s7
mflo $alo
mfhi $ahi
daddu $lo0,$tj
addu $j,8
dmultu $nj,$m1
sltu AT,$lo0,$tj
daddu $lo1,$lo0
daddu $hi0,AT
sltu s7,$lo1,$lo0
ld $tj,16($tp)
daddu $hi1,s7
sltu AT,$j,$num
mflo $nlo
mfhi $nhi
sd $lo1,($tp)
bnez AT,.Linner
PTR_ADD $tp,8
.set reorder
daddu $lo0,$alo,$hi0
sltu AT,$lo0,$hi0
daddu $hi0,$ahi,AT
daddu $lo0,$tj
sltu s7,$lo0,$tj
daddu $hi0,s7
ld $tj,16($tp)
daddu $lo1,$nlo,$hi1
sltu AT,$lo1,$hi1
daddu $hi1,$nhi,AT
daddu $lo1,$lo0
sltu s7,$lo1,$lo0
daddu $hi1,s7
sd $lo1,($tp)
daddu $lo1,$hi1,$hi0
sltu $hi1,$lo1,$hi0
daddu $lo1,$tj
sltu AT,$lo1,$tj
daddu $hi1,AT
sd $lo1,8($tp)
sd $hi1,16($tp)
addu $i,8
sltu s7,$i,$num
bnez s7,.Louter
.set noreorder
PTR_ADD $tj,sp,$num # &tp[num]
move $tp,sp
move $ap,sp
li $hi0,0 # clear borrow bit
.align 4
.Lsub: ld $lo0,($tp)
ld $lo1,($np)
PTR_ADD $tp,8
PTR_ADD $np,8
dsubu $lo1,$lo0,$lo1 # tp[i]-np[i]
sgtu AT,$lo1,$lo0
dsubu $lo0,$lo1,$hi0
sgtu $hi0,$lo0,$lo1
sd $lo0,($rp)
or $hi0,AT
sltu AT,$tp,$tj
bnez AT,.Lsub
PTR_ADD $rp,8
dsubu $hi0,$hi1,$hi0 # handle upmost overflow bit
move $tp,sp
PTR_SUB $rp,$num # restore rp
not $hi1,$hi0
and $ap,$hi0,sp
and $bp,$hi1,$rp
or $ap,$ap,$bp # ap=borrow?tp:rp
.align 4
.Lcopy: ld $aj,($ap)
PTR_ADD $ap,8
PTR_ADD $tp,8
sd zero,-8($tp)
sltu AT,$tp,$tj
sd $aj,($rp)
bnez AT,.Lcopy
PTR_ADD $rp,8
ld s0,0($fp)
ld s1,8($fp)
ld s2,16($fp)
ld s3,24($fp)
ld s4,32($fp)
ld s5,40($fp)
ld s6,48($fp)
ld s7,56($fp)
li v0,1
jr ra
PTR_ADD sp,$fp,64
.set reorder
END(bn_mul_mont)
.rdata
.asciiz "Montgomery Multiplication for MIPS III/IV, CRYPTOGAMS by <appro\@openssl.org>"
___
print $code;
close STDOUT;

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#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# April 2006
# "Teaser" Montgomery multiplication module for PowerPC. It's possible
# to gain a bit more by modulo-scheduling outer loop, then dedicated
# squaring procedure should give further 20% and code can be adapted
# for 32-bit application running on 64-bit CPU. As for the latter.
# It won't be able to achieve "native" 64-bit performance, because in
# 32-bit application context every addc instruction will have to be
# expanded as addc, twice right shift by 32 and finally adde, etc.
# So far RSA *sign* performance improvement over pre-bn_mul_mont asm
# for 64-bit application running on PPC970/G5 is:
#
# 512-bit +65%
# 1024-bit +35%
# 2048-bit +18%
# 4096-bit +4%
$flavour = shift;
if ($flavour =~ /32/) {
$BITS= 32;
$BNSZ= $BITS/8;
$SIZE_T=4;
$RZONE= 224;
$FRAME= $SIZE_T*16;
$LD= "lwz"; # load
$LDU= "lwzu"; # load and update
$LDX= "lwzx"; # load indexed
$ST= "stw"; # store
$STU= "stwu"; # store and update
$STX= "stwx"; # store indexed
$STUX= "stwux"; # store indexed and update
$UMULL= "mullw"; # unsigned multiply low
$UMULH= "mulhwu"; # unsigned multiply high
$UCMP= "cmplw"; # unsigned compare
$SHRI= "srwi"; # unsigned shift right by immediate
$PUSH= $ST;
$POP= $LD;
} elsif ($flavour =~ /64/) {
$BITS= 64;
$BNSZ= $BITS/8;
$SIZE_T=8;
$RZONE= 288;
$FRAME= $SIZE_T*16;
# same as above, but 64-bit mnemonics...
$LD= "ld"; # load
$LDU= "ldu"; # load and update
$LDX= "ldx"; # load indexed
$ST= "std"; # store
$STU= "stdu"; # store and update
$STX= "stdx"; # store indexed
$STUX= "stdux"; # store indexed and update
$UMULL= "mulld"; # unsigned multiply low
$UMULH= "mulhdu"; # unsigned multiply high
$UCMP= "cmpld"; # unsigned compare
$SHRI= "srdi"; # unsigned shift right by immediate
$PUSH= $ST;
$POP= $LD;
} else { die "nonsense $flavour"; }
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
die "can't locate ppc-xlate.pl";
open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
$sp="r1";
$toc="r2";
$rp="r3"; $ovf="r3";
$ap="r4";
$bp="r5";
$np="r6";
$n0="r7";
$num="r8";
$rp="r9"; # $rp is reassigned
$aj="r10";
$nj="r11";
$tj="r12";
# non-volatile registers
$i="r14";
$j="r15";
$tp="r16";
$m0="r17";
$m1="r18";
$lo0="r19";
$hi0="r20";
$lo1="r21";
$hi1="r22";
$alo="r23";
$ahi="r24";
$nlo="r25";
#
$nhi="r0";
$code=<<___;
.machine "any"
.text
.globl .bn_mul_mont
.align 4
.bn_mul_mont:
cmpwi $num,4
mr $rp,r3 ; $rp is reassigned
li r3,0
bltlr
slwi $num,$num,`log($BNSZ)/log(2)`
li $tj,-4096
addi $ovf,$num,`$FRAME+$RZONE`
subf $ovf,$ovf,$sp ; $sp-$ovf
and $ovf,$ovf,$tj ; minimize TLB usage
subf $ovf,$sp,$ovf ; $ovf-$sp
srwi $num,$num,`log($BNSZ)/log(2)`
$STUX $sp,$sp,$ovf
$PUSH r14,`4*$SIZE_T`($sp)
$PUSH r15,`5*$SIZE_T`($sp)
$PUSH r16,`6*$SIZE_T`($sp)
$PUSH r17,`7*$SIZE_T`($sp)
$PUSH r18,`8*$SIZE_T`($sp)
$PUSH r19,`9*$SIZE_T`($sp)
$PUSH r20,`10*$SIZE_T`($sp)
$PUSH r21,`11*$SIZE_T`($sp)
$PUSH r22,`12*$SIZE_T`($sp)
$PUSH r23,`13*$SIZE_T`($sp)
$PUSH r24,`14*$SIZE_T`($sp)
$PUSH r25,`15*$SIZE_T`($sp)
$LD $n0,0($n0) ; pull n0[0] value
addi $num,$num,-2 ; adjust $num for counter register
$LD $m0,0($bp) ; m0=bp[0]
$LD $aj,0($ap) ; ap[0]
addi $tp,$sp,$FRAME
$UMULL $lo0,$aj,$m0 ; ap[0]*bp[0]
$UMULH $hi0,$aj,$m0
$LD $aj,$BNSZ($ap) ; ap[1]
$LD $nj,0($np) ; np[0]
$UMULL $m1,$lo0,$n0 ; "tp[0]"*n0
$UMULL $alo,$aj,$m0 ; ap[1]*bp[0]
$UMULH $ahi,$aj,$m0
$UMULL $lo1,$nj,$m1 ; np[0]*m1
$UMULH $hi1,$nj,$m1
$LD $nj,$BNSZ($np) ; np[1]
addc $lo1,$lo1,$lo0
addze $hi1,$hi1
$UMULL $nlo,$nj,$m1 ; np[1]*m1
$UMULH $nhi,$nj,$m1
mtctr $num
li $j,`2*$BNSZ`
.align 4
L1st:
$LDX $aj,$ap,$j ; ap[j]
addc $lo0,$alo,$hi0
$LDX $nj,$np,$j ; np[j]
addze $hi0,$ahi
$UMULL $alo,$aj,$m0 ; ap[j]*bp[0]
addc $lo1,$nlo,$hi1
$UMULH $ahi,$aj,$m0
addze $hi1,$nhi
$UMULL $nlo,$nj,$m1 ; np[j]*m1
addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[0]
$UMULH $nhi,$nj,$m1
addze $hi1,$hi1
$ST $lo1,0($tp) ; tp[j-1]
addi $j,$j,$BNSZ ; j++
addi $tp,$tp,$BNSZ ; tp++
bdnz- L1st
;L1st
addc $lo0,$alo,$hi0
addze $hi0,$ahi
addc $lo1,$nlo,$hi1
addze $hi1,$nhi
addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[0]
addze $hi1,$hi1
$ST $lo1,0($tp) ; tp[j-1]
li $ovf,0
addc $hi1,$hi1,$hi0
addze $ovf,$ovf ; upmost overflow bit
$ST $hi1,$BNSZ($tp)
li $i,$BNSZ
.align 4
Louter:
$LDX $m0,$bp,$i ; m0=bp[i]
$LD $aj,0($ap) ; ap[0]
addi $tp,$sp,$FRAME
$LD $tj,$FRAME($sp) ; tp[0]
$UMULL $lo0,$aj,$m0 ; ap[0]*bp[i]
$UMULH $hi0,$aj,$m0
$LD $aj,$BNSZ($ap) ; ap[1]
$LD $nj,0($np) ; np[0]
addc $lo0,$lo0,$tj ; ap[0]*bp[i]+tp[0]
$UMULL $alo,$aj,$m0 ; ap[j]*bp[i]
addze $hi0,$hi0
$UMULL $m1,$lo0,$n0 ; tp[0]*n0
$UMULH $ahi,$aj,$m0
$UMULL $lo1,$nj,$m1 ; np[0]*m1
$UMULH $hi1,$nj,$m1
$LD $nj,$BNSZ($np) ; np[1]
addc $lo1,$lo1,$lo0
$UMULL $nlo,$nj,$m1 ; np[1]*m1
addze $hi1,$hi1
$UMULH $nhi,$nj,$m1
mtctr $num
li $j,`2*$BNSZ`
.align 4
Linner:
$LDX $aj,$ap,$j ; ap[j]
addc $lo0,$alo,$hi0
$LD $tj,$BNSZ($tp) ; tp[j]
addze $hi0,$ahi
$LDX $nj,$np,$j ; np[j]
addc $lo1,$nlo,$hi1
$UMULL $alo,$aj,$m0 ; ap[j]*bp[i]
addze $hi1,$nhi
$UMULH $ahi,$aj,$m0
addc $lo0,$lo0,$tj ; ap[j]*bp[i]+tp[j]
$UMULL $nlo,$nj,$m1 ; np[j]*m1
addze $hi0,$hi0
$UMULH $nhi,$nj,$m1
addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[i]+tp[j]
addi $j,$j,$BNSZ ; j++
addze $hi1,$hi1
$ST $lo1,0($tp) ; tp[j-1]
addi $tp,$tp,$BNSZ ; tp++
bdnz- Linner
;Linner
$LD $tj,$BNSZ($tp) ; tp[j]
addc $lo0,$alo,$hi0
addze $hi0,$ahi
addc $lo0,$lo0,$tj ; ap[j]*bp[i]+tp[j]
addze $hi0,$hi0
addc $lo1,$nlo,$hi1
addze $hi1,$nhi
addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[i]+tp[j]
addze $hi1,$hi1
$ST $lo1,0($tp) ; tp[j-1]
addic $ovf,$ovf,-1 ; move upmost overflow to XER[CA]
li $ovf,0
adde $hi1,$hi1,$hi0
addze $ovf,$ovf
$ST $hi1,$BNSZ($tp)
;
slwi $tj,$num,`log($BNSZ)/log(2)`
$UCMP $i,$tj
addi $i,$i,$BNSZ
ble- Louter
addi $num,$num,2 ; restore $num
subfc $j,$j,$j ; j=0 and "clear" XER[CA]
addi $tp,$sp,$FRAME
mtctr $num
.align 4
Lsub: $LDX $tj,$tp,$j
$LDX $nj,$np,$j
subfe $aj,$nj,$tj ; tp[j]-np[j]
$STX $aj,$rp,$j
addi $j,$j,$BNSZ
bdnz- Lsub
li $j,0
mtctr $num
subfe $ovf,$j,$ovf ; handle upmost overflow bit
and $ap,$tp,$ovf
andc $np,$rp,$ovf
or $ap,$ap,$np ; ap=borrow?tp:rp
.align 4
Lcopy: ; copy or in-place refresh
$LDX $tj,$ap,$j
$STX $tj,$rp,$j
$STX $j,$tp,$j ; zap at once
addi $j,$j,$BNSZ
bdnz- Lcopy
$POP r14,`4*$SIZE_T`($sp)
$POP r15,`5*$SIZE_T`($sp)
$POP r16,`6*$SIZE_T`($sp)
$POP r17,`7*$SIZE_T`($sp)
$POP r18,`8*$SIZE_T`($sp)
$POP r19,`9*$SIZE_T`($sp)
$POP r20,`10*$SIZE_T`($sp)
$POP r21,`11*$SIZE_T`($sp)
$POP r22,`12*$SIZE_T`($sp)
$POP r23,`13*$SIZE_T`($sp)
$POP r24,`14*$SIZE_T`($sp)
$POP r25,`15*$SIZE_T`($sp)
$POP $sp,0($sp)
li r3,1
blr
.long 0
.asciz "Montgomery Multiplication for PPC, CRYPTOGAMS by <appro\@fy.chalmers.se>"
___
$code =~ s/\`([^\`]*)\`/eval $1/gem;
print $code;
close STDOUT;

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#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# December 2007
# The reason for undertaken effort is basically following. Even though
# Power 6 CPU operates at incredible 4.7GHz clock frequency, its PKI
# performance was observed to be less than impressive, essentially as
# fast as 1.8GHz PPC970, or 2.6 times(!) slower than one would hope.
# Well, it's not surprising that IBM had to make some sacrifices to
# boost the clock frequency that much, but no overall improvement?
# Having observed how much difference did switching to FPU make on
# UltraSPARC, playing same stunt on Power 6 appeared appropriate...
# Unfortunately the resulting performance improvement is not as
# impressive, ~30%, and in absolute terms is still very far from what
# one would expect from 4.7GHz CPU. There is a chance that I'm doing
# something wrong, but in the lack of assembler level micro-profiling
# data or at least decent platform guide I can't tell... Or better
# results might be achieved with VMX... Anyway, this module provides
# *worse* performance on other PowerPC implementations, ~40-15% slower
# on PPC970 depending on key length and ~40% slower on Power 5 for all
# key lengths. As it's obviously inappropriate as "best all-round"
# alternative, it has to be complemented with run-time CPU family
# detection. Oh! It should also be noted that unlike other PowerPC
# implementation IALU ppc-mont.pl module performs *suboptimaly* on
# >=1024-bit key lengths on Power 6. It should also be noted that
# *everything* said so far applies to 64-bit builds! As far as 32-bit
# application executed on 64-bit CPU goes, this module is likely to
# become preferred choice, because it's easy to adapt it for such
# case and *is* faster than 32-bit ppc-mont.pl on *all* processors.
# February 2008
# Micro-profiling assisted optimization results in ~15% improvement
# over original ppc64-mont.pl version, or overall ~50% improvement
# over ppc.pl module on Power 6. If compared to ppc-mont.pl on same
# Power 6 CPU, this module is 5-150% faster depending on key length,
# [hereafter] more for longer keys. But if compared to ppc-mont.pl
# on 1.8GHz PPC970, it's only 5-55% faster. Still far from impressive
# in absolute terms, but it's apparently the way Power 6 is...
$flavour = shift;
if ($flavour =~ /32/) {
$SIZE_T=4;
$RZONE= 224;
$FRAME= $SIZE_T*12+8*12;
$fname= "bn_mul_mont_ppc64";
$STUX= "stwux"; # store indexed and update
$PUSH= "stw";
$POP= "lwz";
die "not implemented yet";
} elsif ($flavour =~ /64/) {
$SIZE_T=8;
$RZONE= 288;
$FRAME= $SIZE_T*12+8*12;
$fname= "bn_mul_mont";
# same as above, but 64-bit mnemonics...
$STUX= "stdux"; # store indexed and update
$PUSH= "std";
$POP= "ld";
} else { die "nonsense $flavour"; }
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
die "can't locate ppc-xlate.pl";
open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
$FRAME=($FRAME+63)&~63;
$TRANSFER=16*8;
$carry="r0";
$sp="r1";
$toc="r2";
$rp="r3"; $ovf="r3";
$ap="r4";
$bp="r5";
$np="r6";
$n0="r7";
$num="r8";
$rp="r9"; # $rp is reassigned
$tp="r10";
$j="r11";
$i="r12";
# non-volatile registers
$nap_d="r14"; # interleaved ap and np in double format
$a0="r15"; # ap[0]
$t0="r16"; # temporary registers
$t1="r17";
$t2="r18";
$t3="r19";
$t4="r20";
$t5="r21";
$t6="r22";
$t7="r23";
# PPC offers enough register bank capacity to unroll inner loops twice
#
# ..A3A2A1A0
# dcba
# -----------
# A0a
# A0b
# A0c
# A0d
# A1a
# A1b
# A1c
# A1d
# A2a
# A2b
# A2c
# A2d
# A3a
# A3b
# A3c
# A3d
# ..a
# ..b
#
$ba="f0"; $bb="f1"; $bc="f2"; $bd="f3";
$na="f4"; $nb="f5"; $nc="f6"; $nd="f7";
$dota="f8"; $dotb="f9";
$A0="f10"; $A1="f11"; $A2="f12"; $A3="f13";
$N0="f14"; $N1="f15"; $N2="f16"; $N3="f17";
$T0a="f18"; $T0b="f19";
$T1a="f20"; $T1b="f21";
$T2a="f22"; $T2b="f23";
$T3a="f24"; $T3b="f25";
# sp----------->+-------------------------------+
# | saved sp |
# +-------------------------------+
# | |
# +-------------------------------+
# | 10 saved gpr, r14-r23 |
# . .
# . .
# +12*size_t +-------------------------------+
# | 12 saved fpr, f14-f25 |
# . .
# . .
# +12*8 +-------------------------------+
# | padding to 64 byte boundary |
# . .
# +X +-------------------------------+
# | 16 gpr<->fpr transfer zone |
# . .
# . .
# +16*8 +-------------------------------+
# | __int64 tmp[-1] |
# +-------------------------------+
# | __int64 tmp[num] |
# . .
# . .
# . .
# +(num+1)*8 +-------------------------------+
# | padding to 64 byte boundary |
# . .
# +X +-------------------------------+
# | double nap_d[4*num] |
# . .
# . .
# . .
# +-------------------------------+
$code=<<___;
.machine "any"
.text
.globl .$fname
.align 5
.$fname:
cmpwi $num,4
mr $rp,r3 ; $rp is reassigned
li r3,0 ; possible "not handled" return code
bltlr-
andi. r0,$num,1 ; $num has to be even
bnelr-
slwi $num,$num,3 ; num*=8
li $i,-4096
slwi $tp,$num,2 ; place for {an}p_{lh}[num], i.e. 4*num
add $tp,$tp,$num ; place for tp[num+1]
addi $tp,$tp,`$FRAME+$TRANSFER+8+64+$RZONE`
subf $tp,$tp,$sp ; $sp-$tp
and $tp,$tp,$i ; minimize TLB usage
subf $tp,$sp,$tp ; $tp-$sp
$STUX $sp,$sp,$tp ; alloca
$PUSH r14,`2*$SIZE_T`($sp)
$PUSH r15,`3*$SIZE_T`($sp)
$PUSH r16,`4*$SIZE_T`($sp)
$PUSH r17,`5*$SIZE_T`($sp)
$PUSH r18,`6*$SIZE_T`($sp)
$PUSH r19,`7*$SIZE_T`($sp)
$PUSH r20,`8*$SIZE_T`($sp)
$PUSH r21,`9*$SIZE_T`($sp)
$PUSH r22,`10*$SIZE_T`($sp)
$PUSH r23,`11*$SIZE_T`($sp)
stfd f14,`12*$SIZE_T+0`($sp)
stfd f15,`12*$SIZE_T+8`($sp)
stfd f16,`12*$SIZE_T+16`($sp)
stfd f17,`12*$SIZE_T+24`($sp)
stfd f18,`12*$SIZE_T+32`($sp)
stfd f19,`12*$SIZE_T+40`($sp)
stfd f20,`12*$SIZE_T+48`($sp)
stfd f21,`12*$SIZE_T+56`($sp)
stfd f22,`12*$SIZE_T+64`($sp)
stfd f23,`12*$SIZE_T+72`($sp)
stfd f24,`12*$SIZE_T+80`($sp)
stfd f25,`12*$SIZE_T+88`($sp)
ld $a0,0($ap) ; pull ap[0] value
ld $n0,0($n0) ; pull n0[0] value
ld $t3,0($bp) ; bp[0]
addi $tp,$sp,`$FRAME+$TRANSFER+8+64`
li $i,-64
add $nap_d,$tp,$num
and $nap_d,$nap_d,$i ; align to 64 bytes
mulld $t7,$a0,$t3 ; ap[0]*bp[0]
; nap_d is off by 1, because it's used with stfdu/lfdu
addi $nap_d,$nap_d,-8
srwi $j,$num,`3+1` ; counter register, num/2
mulld $t7,$t7,$n0 ; tp[0]*n0
addi $j,$j,-1
addi $tp,$sp,`$FRAME+$TRANSFER-8`
li $carry,0
mtctr $j
; transfer bp[0] to FPU as 4x16-bit values
extrdi $t0,$t3,16,48
extrdi $t1,$t3,16,32
extrdi $t2,$t3,16,16
extrdi $t3,$t3,16,0
std $t0,`$FRAME+0`($sp)
std $t1,`$FRAME+8`($sp)
std $t2,`$FRAME+16`($sp)
std $t3,`$FRAME+24`($sp)
; transfer (ap[0]*bp[0])*n0 to FPU as 4x16-bit values
extrdi $t4,$t7,16,48
extrdi $t5,$t7,16,32
extrdi $t6,$t7,16,16
extrdi $t7,$t7,16,0
std $t4,`$FRAME+32`($sp)
std $t5,`$FRAME+40`($sp)
std $t6,`$FRAME+48`($sp)
std $t7,`$FRAME+56`($sp)
lwz $t0,4($ap) ; load a[j] as 32-bit word pair
lwz $t1,0($ap)
lwz $t2,12($ap) ; load a[j+1] as 32-bit word pair
lwz $t3,8($ap)
lwz $t4,4($np) ; load n[j] as 32-bit word pair
lwz $t5,0($np)
lwz $t6,12($np) ; load n[j+1] as 32-bit word pair
lwz $t7,8($np)
lfd $ba,`$FRAME+0`($sp)
lfd $bb,`$FRAME+8`($sp)
lfd $bc,`$FRAME+16`($sp)
lfd $bd,`$FRAME+24`($sp)
lfd $na,`$FRAME+32`($sp)
lfd $nb,`$FRAME+40`($sp)
lfd $nc,`$FRAME+48`($sp)
lfd $nd,`$FRAME+56`($sp)
std $t0,`$FRAME+64`($sp)
std $t1,`$FRAME+72`($sp)
std $t2,`$FRAME+80`($sp)
std $t3,`$FRAME+88`($sp)
std $t4,`$FRAME+96`($sp)
std $t5,`$FRAME+104`($sp)
std $t6,`$FRAME+112`($sp)
std $t7,`$FRAME+120`($sp)
fcfid $ba,$ba
fcfid $bb,$bb
fcfid $bc,$bc
fcfid $bd,$bd
fcfid $na,$na
fcfid $nb,$nb
fcfid $nc,$nc
fcfid $nd,$nd
lfd $A0,`$FRAME+64`($sp)
lfd $A1,`$FRAME+72`($sp)
lfd $A2,`$FRAME+80`($sp)
lfd $A3,`$FRAME+88`($sp)
lfd $N0,`$FRAME+96`($sp)
lfd $N1,`$FRAME+104`($sp)
lfd $N2,`$FRAME+112`($sp)
lfd $N3,`$FRAME+120`($sp)
fcfid $A0,$A0
fcfid $A1,$A1
fcfid $A2,$A2
fcfid $A3,$A3
fcfid $N0,$N0
fcfid $N1,$N1
fcfid $N2,$N2
fcfid $N3,$N3
addi $ap,$ap,16
addi $np,$np,16
fmul $T1a,$A1,$ba
fmul $T1b,$A1,$bb
stfd $A0,8($nap_d) ; save a[j] in double format
stfd $A1,16($nap_d)
fmul $T2a,$A2,$ba
fmul $T2b,$A2,$bb
stfd $A2,24($nap_d) ; save a[j+1] in double format
stfd $A3,32($nap_d)
fmul $T3a,$A3,$ba
fmul $T3b,$A3,$bb
stfd $N0,40($nap_d) ; save n[j] in double format
stfd $N1,48($nap_d)
fmul $T0a,$A0,$ba
fmul $T0b,$A0,$bb
stfd $N2,56($nap_d) ; save n[j+1] in double format
stfdu $N3,64($nap_d)
fmadd $T1a,$A0,$bc,$T1a
fmadd $T1b,$A0,$bd,$T1b
fmadd $T2a,$A1,$bc,$T2a
fmadd $T2b,$A1,$bd,$T2b
fmadd $T3a,$A2,$bc,$T3a
fmadd $T3b,$A2,$bd,$T3b
fmul $dota,$A3,$bc
fmul $dotb,$A3,$bd
fmadd $T1a,$N1,$na,$T1a
fmadd $T1b,$N1,$nb,$T1b
fmadd $T2a,$N2,$na,$T2a
fmadd $T2b,$N2,$nb,$T2b
fmadd $T3a,$N3,$na,$T3a
fmadd $T3b,$N3,$nb,$T3b
fmadd $T0a,$N0,$na,$T0a
fmadd $T0b,$N0,$nb,$T0b
fmadd $T1a,$N0,$nc,$T1a
fmadd $T1b,$N0,$nd,$T1b
fmadd $T2a,$N1,$nc,$T2a
fmadd $T2b,$N1,$nd,$T2b
fmadd $T3a,$N2,$nc,$T3a
fmadd $T3b,$N2,$nd,$T3b
fmadd $dota,$N3,$nc,$dota
fmadd $dotb,$N3,$nd,$dotb
fctid $T0a,$T0a
fctid $T0b,$T0b
fctid $T1a,$T1a
fctid $T1b,$T1b
fctid $T2a,$T2a
fctid $T2b,$T2b
fctid $T3a,$T3a
fctid $T3b,$T3b
stfd $T0a,`$FRAME+0`($sp)
stfd $T0b,`$FRAME+8`($sp)
stfd $T1a,`$FRAME+16`($sp)
stfd $T1b,`$FRAME+24`($sp)
stfd $T2a,`$FRAME+32`($sp)
stfd $T2b,`$FRAME+40`($sp)
stfd $T3a,`$FRAME+48`($sp)
stfd $T3b,`$FRAME+56`($sp)
.align 5
L1st:
lwz $t0,4($ap) ; load a[j] as 32-bit word pair
lwz $t1,0($ap)
lwz $t2,12($ap) ; load a[j+1] as 32-bit word pair
lwz $t3,8($ap)
lwz $t4,4($np) ; load n[j] as 32-bit word pair
lwz $t5,0($np)
lwz $t6,12($np) ; load n[j+1] as 32-bit word pair
lwz $t7,8($np)
std $t0,`$FRAME+64`($sp)
std $t1,`$FRAME+72`($sp)
std $t2,`$FRAME+80`($sp)
std $t3,`$FRAME+88`($sp)
std $t4,`$FRAME+96`($sp)
std $t5,`$FRAME+104`($sp)
std $t6,`$FRAME+112`($sp)
std $t7,`$FRAME+120`($sp)
ld $t0,`$FRAME+0`($sp)
ld $t1,`$FRAME+8`($sp)
ld $t2,`$FRAME+16`($sp)
ld $t3,`$FRAME+24`($sp)
ld $t4,`$FRAME+32`($sp)
ld $t5,`$FRAME+40`($sp)
ld $t6,`$FRAME+48`($sp)
ld $t7,`$FRAME+56`($sp)
lfd $A0,`$FRAME+64`($sp)
lfd $A1,`$FRAME+72`($sp)
lfd $A2,`$FRAME+80`($sp)
lfd $A3,`$FRAME+88`($sp)
lfd $N0,`$FRAME+96`($sp)
lfd $N1,`$FRAME+104`($sp)
lfd $N2,`$FRAME+112`($sp)
lfd $N3,`$FRAME+120`($sp)
fcfid $A0,$A0
fcfid $A1,$A1
fcfid $A2,$A2
fcfid $A3,$A3
fcfid $N0,$N0
fcfid $N1,$N1
fcfid $N2,$N2
fcfid $N3,$N3
addi $ap,$ap,16
addi $np,$np,16
fmul $T1a,$A1,$ba
fmul $T1b,$A1,$bb
fmul $T2a,$A2,$ba
fmul $T2b,$A2,$bb
stfd $A0,8($nap_d) ; save a[j] in double format
stfd $A1,16($nap_d)
fmul $T3a,$A3,$ba
fmul $T3b,$A3,$bb
fmadd $T0a,$A0,$ba,$dota
fmadd $T0b,$A0,$bb,$dotb
stfd $A2,24($nap_d) ; save a[j+1] in double format
stfd $A3,32($nap_d)
fmadd $T1a,$A0,$bc,$T1a
fmadd $T1b,$A0,$bd,$T1b
fmadd $T2a,$A1,$bc,$T2a
fmadd $T2b,$A1,$bd,$T2b
stfd $N0,40($nap_d) ; save n[j] in double format
stfd $N1,48($nap_d)
fmadd $T3a,$A2,$bc,$T3a
fmadd $T3b,$A2,$bd,$T3b
add $t0,$t0,$carry ; can not overflow
fmul $dota,$A3,$bc
fmul $dotb,$A3,$bd
stfd $N2,56($nap_d) ; save n[j+1] in double format
stfdu $N3,64($nap_d)
srdi $carry,$t0,16
add $t1,$t1,$carry
srdi $carry,$t1,16
fmadd $T1a,$N1,$na,$T1a
fmadd $T1b,$N1,$nb,$T1b
insrdi $t0,$t1,16,32
fmadd $T2a,$N2,$na,$T2a
fmadd $T2b,$N2,$nb,$T2b
add $t2,$t2,$carry
fmadd $T3a,$N3,$na,$T3a
fmadd $T3b,$N3,$nb,$T3b
srdi $carry,$t2,16
fmadd $T0a,$N0,$na,$T0a
fmadd $T0b,$N0,$nb,$T0b
insrdi $t0,$t2,16,16
add $t3,$t3,$carry
srdi $carry,$t3,16
fmadd $T1a,$N0,$nc,$T1a
fmadd $T1b,$N0,$nd,$T1b
insrdi $t0,$t3,16,0 ; 0..63 bits
fmadd $T2a,$N1,$nc,$T2a
fmadd $T2b,$N1,$nd,$T2b
add $t4,$t4,$carry
fmadd $T3a,$N2,$nc,$T3a
fmadd $T3b,$N2,$nd,$T3b
srdi $carry,$t4,16
fmadd $dota,$N3,$nc,$dota
fmadd $dotb,$N3,$nd,$dotb
add $t5,$t5,$carry
srdi $carry,$t5,16
insrdi $t4,$t5,16,32
fctid $T0a,$T0a
fctid $T0b,$T0b
add $t6,$t6,$carry
fctid $T1a,$T1a
fctid $T1b,$T1b
srdi $carry,$t6,16
fctid $T2a,$T2a
fctid $T2b,$T2b
insrdi $t4,$t6,16,16
fctid $T3a,$T3a
fctid $T3b,$T3b
add $t7,$t7,$carry
insrdi $t4,$t7,16,0 ; 64..127 bits
srdi $carry,$t7,16 ; upper 33 bits
stfd $T0a,`$FRAME+0`($sp)
stfd $T0b,`$FRAME+8`($sp)
stfd $T1a,`$FRAME+16`($sp)
stfd $T1b,`$FRAME+24`($sp)
stfd $T2a,`$FRAME+32`($sp)
stfd $T2b,`$FRAME+40`($sp)
stfd $T3a,`$FRAME+48`($sp)
stfd $T3b,`$FRAME+56`($sp)
std $t0,8($tp) ; tp[j-1]
stdu $t4,16($tp) ; tp[j]
bdnz- L1st
fctid $dota,$dota
fctid $dotb,$dotb
ld $t0,`$FRAME+0`($sp)
ld $t1,`$FRAME+8`($sp)
ld $t2,`$FRAME+16`($sp)
ld $t3,`$FRAME+24`($sp)
ld $t4,`$FRAME+32`($sp)
ld $t5,`$FRAME+40`($sp)
ld $t6,`$FRAME+48`($sp)
ld $t7,`$FRAME+56`($sp)
stfd $dota,`$FRAME+64`($sp)
stfd $dotb,`$FRAME+72`($sp)
add $t0,$t0,$carry ; can not overflow
srdi $carry,$t0,16
add $t1,$t1,$carry
srdi $carry,$t1,16
insrdi $t0,$t1,16,32
add $t2,$t2,$carry
srdi $carry,$t2,16
insrdi $t0,$t2,16,16
add $t3,$t3,$carry
srdi $carry,$t3,16
insrdi $t0,$t3,16,0 ; 0..63 bits
add $t4,$t4,$carry
srdi $carry,$t4,16
add $t5,$t5,$carry
srdi $carry,$t5,16
insrdi $t4,$t5,16,32
add $t6,$t6,$carry
srdi $carry,$t6,16
insrdi $t4,$t6,16,16
add $t7,$t7,$carry
insrdi $t4,$t7,16,0 ; 64..127 bits
srdi $carry,$t7,16 ; upper 33 bits
ld $t6,`$FRAME+64`($sp)
ld $t7,`$FRAME+72`($sp)
std $t0,8($tp) ; tp[j-1]
stdu $t4,16($tp) ; tp[j]
add $t6,$t6,$carry ; can not overflow
srdi $carry,$t6,16
add $t7,$t7,$carry
insrdi $t6,$t7,48,0
srdi $ovf,$t7,48
std $t6,8($tp) ; tp[num-1]
slwi $t7,$num,2
subf $nap_d,$t7,$nap_d ; rewind pointer
li $i,8 ; i=1
.align 5
Louter:
ldx $t3,$bp,$i ; bp[i]
ld $t6,`$FRAME+$TRANSFER+8`($sp) ; tp[0]
mulld $t7,$a0,$t3 ; ap[0]*bp[i]
addi $tp,$sp,`$FRAME+$TRANSFER`
add $t7,$t7,$t6 ; ap[0]*bp[i]+tp[0]
li $carry,0
mulld $t7,$t7,$n0 ; tp[0]*n0
mtctr $j
; transfer bp[i] to FPU as 4x16-bit values
extrdi $t0,$t3,16,48
extrdi $t1,$t3,16,32
extrdi $t2,$t3,16,16
extrdi $t3,$t3,16,0
std $t0,`$FRAME+0`($sp)
std $t1,`$FRAME+8`($sp)
std $t2,`$FRAME+16`($sp)
std $t3,`$FRAME+24`($sp)
; transfer (ap[0]*bp[i]+tp[0])*n0 to FPU as 4x16-bit values
extrdi $t4,$t7,16,48
extrdi $t5,$t7,16,32
extrdi $t6,$t7,16,16
extrdi $t7,$t7,16,0
std $t4,`$FRAME+32`($sp)
std $t5,`$FRAME+40`($sp)
std $t6,`$FRAME+48`($sp)
std $t7,`$FRAME+56`($sp)
lfd $A0,8($nap_d) ; load a[j] in double format
lfd $A1,16($nap_d)
lfd $A2,24($nap_d) ; load a[j+1] in double format
lfd $A3,32($nap_d)
lfd $N0,40($nap_d) ; load n[j] in double format
lfd $N1,48($nap_d)
lfd $N2,56($nap_d) ; load n[j+1] in double format
lfdu $N3,64($nap_d)
lfd $ba,`$FRAME+0`($sp)
lfd $bb,`$FRAME+8`($sp)
lfd $bc,`$FRAME+16`($sp)
lfd $bd,`$FRAME+24`($sp)
lfd $na,`$FRAME+32`($sp)
lfd $nb,`$FRAME+40`($sp)
lfd $nc,`$FRAME+48`($sp)
lfd $nd,`$FRAME+56`($sp)
fcfid $ba,$ba
fcfid $bb,$bb
fcfid $bc,$bc
fcfid $bd,$bd
fcfid $na,$na
fcfid $nb,$nb
fcfid $nc,$nc
fcfid $nd,$nd
fmul $T1a,$A1,$ba
fmul $T1b,$A1,$bb
fmul $T2a,$A2,$ba
fmul $T2b,$A2,$bb
fmul $T3a,$A3,$ba
fmul $T3b,$A3,$bb
fmul $T0a,$A0,$ba
fmul $T0b,$A0,$bb
fmadd $T1a,$A0,$bc,$T1a
fmadd $T1b,$A0,$bd,$T1b
fmadd $T2a,$A1,$bc,$T2a
fmadd $T2b,$A1,$bd,$T2b
fmadd $T3a,$A2,$bc,$T3a
fmadd $T3b,$A2,$bd,$T3b
fmul $dota,$A3,$bc
fmul $dotb,$A3,$bd
fmadd $T1a,$N1,$na,$T1a
fmadd $T1b,$N1,$nb,$T1b
lfd $A0,8($nap_d) ; load a[j] in double format
lfd $A1,16($nap_d)
fmadd $T2a,$N2,$na,$T2a
fmadd $T2b,$N2,$nb,$T2b
lfd $A2,24($nap_d) ; load a[j+1] in double format
lfd $A3,32($nap_d)
fmadd $T3a,$N3,$na,$T3a
fmadd $T3b,$N3,$nb,$T3b
fmadd $T0a,$N0,$na,$T0a
fmadd $T0b,$N0,$nb,$T0b
fmadd $T1a,$N0,$nc,$T1a
fmadd $T1b,$N0,$nd,$T1b
fmadd $T2a,$N1,$nc,$T2a
fmadd $T2b,$N1,$nd,$T2b
fmadd $T3a,$N2,$nc,$T3a
fmadd $T3b,$N2,$nd,$T3b
fmadd $dota,$N3,$nc,$dota
fmadd $dotb,$N3,$nd,$dotb
fctid $T0a,$T0a
fctid $T0b,$T0b
fctid $T1a,$T1a
fctid $T1b,$T1b
fctid $T2a,$T2a
fctid $T2b,$T2b
fctid $T3a,$T3a
fctid $T3b,$T3b
stfd $T0a,`$FRAME+0`($sp)
stfd $T0b,`$FRAME+8`($sp)
stfd $T1a,`$FRAME+16`($sp)
stfd $T1b,`$FRAME+24`($sp)
stfd $T2a,`$FRAME+32`($sp)
stfd $T2b,`$FRAME+40`($sp)
stfd $T3a,`$FRAME+48`($sp)
stfd $T3b,`$FRAME+56`($sp)
.align 5
Linner:
fmul $T1a,$A1,$ba
fmul $T1b,$A1,$bb
fmul $T2a,$A2,$ba
fmul $T2b,$A2,$bb
lfd $N0,40($nap_d) ; load n[j] in double format
lfd $N1,48($nap_d)
fmul $T3a,$A3,$ba
fmul $T3b,$A3,$bb
fmadd $T0a,$A0,$ba,$dota
fmadd $T0b,$A0,$bb,$dotb
lfd $N2,56($nap_d) ; load n[j+1] in double format
lfdu $N3,64($nap_d)
fmadd $T1a,$A0,$bc,$T1a
fmadd $T1b,$A0,$bd,$T1b
fmadd $T2a,$A1,$bc,$T2a
fmadd $T2b,$A1,$bd,$T2b
lfd $A0,8($nap_d) ; load a[j] in double format
lfd $A1,16($nap_d)
fmadd $T3a,$A2,$bc,$T3a
fmadd $T3b,$A2,$bd,$T3b
fmul $dota,$A3,$bc
fmul $dotb,$A3,$bd
lfd $A2,24($nap_d) ; load a[j+1] in double format
lfd $A3,32($nap_d)
fmadd $T1a,$N1,$na,$T1a
fmadd $T1b,$N1,$nb,$T1b
ld $t0,`$FRAME+0`($sp)
ld $t1,`$FRAME+8`($sp)
fmadd $T2a,$N2,$na,$T2a
fmadd $T2b,$N2,$nb,$T2b
ld $t2,`$FRAME+16`($sp)
ld $t3,`$FRAME+24`($sp)
fmadd $T3a,$N3,$na,$T3a
fmadd $T3b,$N3,$nb,$T3b
add $t0,$t0,$carry ; can not overflow
ld $t4,`$FRAME+32`($sp)
ld $t5,`$FRAME+40`($sp)
fmadd $T0a,$N0,$na,$T0a
fmadd $T0b,$N0,$nb,$T0b
srdi $carry,$t0,16
add $t1,$t1,$carry
srdi $carry,$t1,16
ld $t6,`$FRAME+48`($sp)
ld $t7,`$FRAME+56`($sp)
fmadd $T1a,$N0,$nc,$T1a
fmadd $T1b,$N0,$nd,$T1b
insrdi $t0,$t1,16,32
ld $t1,8($tp) ; tp[j]
fmadd $T2a,$N1,$nc,$T2a
fmadd $T2b,$N1,$nd,$T2b
add $t2,$t2,$carry
fmadd $T3a,$N2,$nc,$T3a
fmadd $T3b,$N2,$nd,$T3b
srdi $carry,$t2,16
insrdi $t0,$t2,16,16
fmadd $dota,$N3,$nc,$dota
fmadd $dotb,$N3,$nd,$dotb
add $t3,$t3,$carry
ldu $t2,16($tp) ; tp[j+1]
srdi $carry,$t3,16
insrdi $t0,$t3,16,0 ; 0..63 bits
add $t4,$t4,$carry
fctid $T0a,$T0a
fctid $T0b,$T0b
srdi $carry,$t4,16
fctid $T1a,$T1a
fctid $T1b,$T1b
add $t5,$t5,$carry
fctid $T2a,$T2a
fctid $T2b,$T2b
srdi $carry,$t5,16
insrdi $t4,$t5,16,32
fctid $T3a,$T3a
fctid $T3b,$T3b
add $t6,$t6,$carry
srdi $carry,$t6,16
insrdi $t4,$t6,16,16
stfd $T0a,`$FRAME+0`($sp)
stfd $T0b,`$FRAME+8`($sp)
add $t7,$t7,$carry
addc $t3,$t0,$t1
stfd $T1a,`$FRAME+16`($sp)
stfd $T1b,`$FRAME+24`($sp)
insrdi $t4,$t7,16,0 ; 64..127 bits
srdi $carry,$t7,16 ; upper 33 bits
stfd $T2a,`$FRAME+32`($sp)
stfd $T2b,`$FRAME+40`($sp)
adde $t5,$t4,$t2
stfd $T3a,`$FRAME+48`($sp)
stfd $T3b,`$FRAME+56`($sp)
addze $carry,$carry
std $t3,-16($tp) ; tp[j-1]
std $t5,-8($tp) ; tp[j]
bdnz- Linner
fctid $dota,$dota
fctid $dotb,$dotb
ld $t0,`$FRAME+0`($sp)
ld $t1,`$FRAME+8`($sp)
ld $t2,`$FRAME+16`($sp)
ld $t3,`$FRAME+24`($sp)
ld $t4,`$FRAME+32`($sp)
ld $t5,`$FRAME+40`($sp)
ld $t6,`$FRAME+48`($sp)
ld $t7,`$FRAME+56`($sp)
stfd $dota,`$FRAME+64`($sp)
stfd $dotb,`$FRAME+72`($sp)
add $t0,$t0,$carry ; can not overflow
srdi $carry,$t0,16
add $t1,$t1,$carry
srdi $carry,$t1,16
insrdi $t0,$t1,16,32
add $t2,$t2,$carry
ld $t1,8($tp) ; tp[j]
srdi $carry,$t2,16
insrdi $t0,$t2,16,16
add $t3,$t3,$carry
ldu $t2,16($tp) ; tp[j+1]
srdi $carry,$t3,16
insrdi $t0,$t3,16,0 ; 0..63 bits
add $t4,$t4,$carry
srdi $carry,$t4,16
add $t5,$t5,$carry
srdi $carry,$t5,16
insrdi $t4,$t5,16,32
add $t6,$t6,$carry
srdi $carry,$t6,16
insrdi $t4,$t6,16,16
add $t7,$t7,$carry
insrdi $t4,$t7,16,0 ; 64..127 bits
srdi $carry,$t7,16 ; upper 33 bits
ld $t6,`$FRAME+64`($sp)
ld $t7,`$FRAME+72`($sp)
addc $t3,$t0,$t1
adde $t5,$t4,$t2
addze $carry,$carry
std $t3,-16($tp) ; tp[j-1]
std $t5,-8($tp) ; tp[j]
add $carry,$carry,$ovf ; comsume upmost overflow
add $t6,$t6,$carry ; can not overflow
srdi $carry,$t6,16
add $t7,$t7,$carry
insrdi $t6,$t7,48,0
srdi $ovf,$t7,48
std $t6,0($tp) ; tp[num-1]
slwi $t7,$num,2
addi $i,$i,8
subf $nap_d,$t7,$nap_d ; rewind pointer
cmpw $i,$num
blt- Louter
subf $np,$num,$np ; rewind np
addi $j,$j,1 ; restore counter
subfc $i,$i,$i ; j=0 and "clear" XER[CA]
addi $tp,$sp,`$FRAME+$TRANSFER+8`
addi $t4,$sp,`$FRAME+$TRANSFER+16`
addi $t5,$np,8
addi $t6,$rp,8
mtctr $j
.align 4
Lsub: ldx $t0,$tp,$i
ldx $t1,$np,$i
ldx $t2,$t4,$i
ldx $t3,$t5,$i
subfe $t0,$t1,$t0 ; tp[j]-np[j]
subfe $t2,$t3,$t2 ; tp[j+1]-np[j+1]
stdx $t0,$rp,$i
stdx $t2,$t6,$i
addi $i,$i,16
bdnz- Lsub
li $i,0
subfe $ovf,$i,$ovf ; handle upmost overflow bit
and $ap,$tp,$ovf
andc $np,$rp,$ovf
or $ap,$ap,$np ; ap=borrow?tp:rp
addi $t7,$ap,8
mtctr $j
.align 4
Lcopy: ; copy or in-place refresh
ldx $t0,$ap,$i
ldx $t1,$t7,$i
std $i,8($nap_d) ; zap nap_d
std $i,16($nap_d)
std $i,24($nap_d)
std $i,32($nap_d)
std $i,40($nap_d)
std $i,48($nap_d)
std $i,56($nap_d)
stdu $i,64($nap_d)
stdx $t0,$rp,$i
stdx $t1,$t6,$i
stdx $i,$tp,$i ; zap tp at once
stdx $i,$t4,$i
addi $i,$i,16
bdnz- Lcopy
$POP r14,`2*$SIZE_T`($sp)
$POP r15,`3*$SIZE_T`($sp)
$POP r16,`4*$SIZE_T`($sp)
$POP r17,`5*$SIZE_T`($sp)
$POP r18,`6*$SIZE_T`($sp)
$POP r19,`7*$SIZE_T`($sp)
$POP r20,`8*$SIZE_T`($sp)
$POP r21,`9*$SIZE_T`($sp)
$POP r22,`10*$SIZE_T`($sp)
$POP r23,`11*$SIZE_T`($sp)
lfd f14,`12*$SIZE_T+0`($sp)
lfd f15,`12*$SIZE_T+8`($sp)
lfd f16,`12*$SIZE_T+16`($sp)
lfd f17,`12*$SIZE_T+24`($sp)
lfd f18,`12*$SIZE_T+32`($sp)
lfd f19,`12*$SIZE_T+40`($sp)
lfd f20,`12*$SIZE_T+48`($sp)
lfd f21,`12*$SIZE_T+56`($sp)
lfd f22,`12*$SIZE_T+64`($sp)
lfd f23,`12*$SIZE_T+72`($sp)
lfd f24,`12*$SIZE_T+80`($sp)
lfd f25,`12*$SIZE_T+88`($sp)
$POP $sp,0($sp)
li r3,1 ; signal "handled"
blr
.long 0
.asciz "Montgomery Multiplication for PPC64, CRYPTOGAMS by <appro\@fy.chalmers.se>"
___
$code =~ s/\`([^\`]*)\`/eval $1/gem;
print $code;
close STDOUT;

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@ -0,0 +1,225 @@
#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# April 2007.
#
# Performance improvement over vanilla C code varies from 85% to 45%
# depending on key length and benchmark. Unfortunately in this context
# these are not very impressive results [for code that utilizes "wide"
# 64x64=128-bit multiplication, which is not commonly available to C
# programmers], at least hand-coded bn_asm.c replacement is known to
# provide 30-40% better results for longest keys. Well, on a second
# thought it's not very surprising, because z-CPUs are single-issue
# and _strictly_ in-order execution, while bn_mul_mont is more or less
# dependent on CPU ability to pipe-line instructions and have several
# of them "in-flight" at the same time. I mean while other methods,
# for example Karatsuba, aim to minimize amount of multiplications at
# the cost of other operations increase, bn_mul_mont aim to neatly
# "overlap" multiplications and the other operations [and on most
# platforms even minimize the amount of the other operations, in
# particular references to memory]. But it's possible to improve this
# module performance by implementing dedicated squaring code-path and
# possibly by unrolling loops...
# January 2009.
#
# Reschedule to minimize/avoid Address Generation Interlock hazard,
# make inner loops counter-based.
$mn0="%r0";
$num="%r1";
# int bn_mul_mont(
$rp="%r2"; # BN_ULONG *rp,
$ap="%r3"; # const BN_ULONG *ap,
$bp="%r4"; # const BN_ULONG *bp,
$np="%r5"; # const BN_ULONG *np,
$n0="%r6"; # const BN_ULONG *n0,
#$num="160(%r15)" # int num);
$bi="%r2"; # zaps rp
$j="%r7";
$ahi="%r8";
$alo="%r9";
$nhi="%r10";
$nlo="%r11";
$AHI="%r12";
$NHI="%r13";
$count="%r14";
$sp="%r15";
$code.=<<___;
.text
.globl bn_mul_mont
.type bn_mul_mont,\@function
bn_mul_mont:
lgf $num,164($sp) # pull $num
sla $num,3 # $num to enumerate bytes
la $bp,0($num,$bp)
stg %r2,16($sp)
cghi $num,16 #
lghi %r2,0 #
blr %r14 # if($num<16) return 0;
cghi $num,128 #
bhr %r14 # if($num>128) return 0;
stmg %r3,%r15,24($sp)
lghi $rp,-160-8 # leave room for carry bit
lcgr $j,$num # -$num
lgr %r0,$sp
la $rp,0($rp,$sp)
la $sp,0($j,$rp) # alloca
stg %r0,0($sp) # back chain
sra $num,3 # restore $num
la $bp,0($j,$bp) # restore $bp
ahi $num,-1 # adjust $num for inner loop
lg $n0,0($n0) # pull n0
lg $bi,0($bp)
lg $alo,0($ap)
mlgr $ahi,$bi # ap[0]*bp[0]
lgr $AHI,$ahi
lgr $mn0,$alo # "tp[0]"*n0
msgr $mn0,$n0
lg $nlo,0($np) #
mlgr $nhi,$mn0 # np[0]*m1
algr $nlo,$alo # +="tp[0]"
lghi $NHI,0
alcgr $NHI,$nhi
la $j,8(%r0) # j=1
lr $count,$num
.align 16
.L1st:
lg $alo,0($j,$ap)
mlgr $ahi,$bi # ap[j]*bp[0]
algr $alo,$AHI
lghi $AHI,0
alcgr $AHI,$ahi
lg $nlo,0($j,$np)
mlgr $nhi,$mn0 # np[j]*m1
algr $nlo,$NHI
lghi $NHI,0
alcgr $nhi,$NHI # +="tp[j]"
algr $nlo,$alo
alcgr $NHI,$nhi
stg $nlo,160-8($j,$sp) # tp[j-1]=
la $j,8($j) # j++
brct $count,.L1st
algr $NHI,$AHI
lghi $AHI,0
alcgr $AHI,$AHI # upmost overflow bit
stg $NHI,160-8($j,$sp)
stg $AHI,160($j,$sp)
la $bp,8($bp) # bp++
.Louter:
lg $bi,0($bp) # bp[i]
lg $alo,0($ap)
mlgr $ahi,$bi # ap[0]*bp[i]
alg $alo,160($sp) # +=tp[0]
lghi $AHI,0
alcgr $AHI,$ahi
lgr $mn0,$alo
msgr $mn0,$n0 # tp[0]*n0
lg $nlo,0($np) # np[0]
mlgr $nhi,$mn0 # np[0]*m1
algr $nlo,$alo # +="tp[0]"
lghi $NHI,0
alcgr $NHI,$nhi
la $j,8(%r0) # j=1
lr $count,$num
.align 16
.Linner:
lg $alo,0($j,$ap)
mlgr $ahi,$bi # ap[j]*bp[i]
algr $alo,$AHI
lghi $AHI,0
alcgr $ahi,$AHI
alg $alo,160($j,$sp)# +=tp[j]
alcgr $AHI,$ahi
lg $nlo,0($j,$np)
mlgr $nhi,$mn0 # np[j]*m1
algr $nlo,$NHI
lghi $NHI,0
alcgr $nhi,$NHI
algr $nlo,$alo # +="tp[j]"
alcgr $NHI,$nhi
stg $nlo,160-8($j,$sp) # tp[j-1]=
la $j,8($j) # j++
brct $count,.Linner
algr $NHI,$AHI
lghi $AHI,0
alcgr $AHI,$AHI
alg $NHI,160($j,$sp)# accumulate previous upmost overflow bit
lghi $ahi,0
alcgr $AHI,$ahi # new upmost overflow bit
stg $NHI,160-8($j,$sp)
stg $AHI,160($j,$sp)
la $bp,8($bp) # bp++
clg $bp,160+8+32($j,$sp) # compare to &bp[num]
jne .Louter
lg $rp,160+8+16($j,$sp) # reincarnate rp
la $ap,160($sp)
ahi $num,1 # restore $num, incidentally clears "borrow"
la $j,0(%r0)
lr $count,$num
.Lsub: lg $alo,0($j,$ap)
slbg $alo,0($j,$np)
stg $alo,0($j,$rp)
la $j,8($j)
brct $count,.Lsub
lghi $ahi,0
slbgr $AHI,$ahi # handle upmost carry
ngr $ap,$AHI
lghi $np,-1
xgr $np,$AHI
ngr $np,$rp
ogr $ap,$np # ap=borrow?tp:rp
la $j,0(%r0)
lgr $count,$num
.Lcopy: lg $alo,0($j,$ap) # copy or in-place refresh
stg $j,160($j,$sp) # zap tp
stg $alo,0($j,$rp)
la $j,8($j)
brct $count,.Lcopy
la %r1,160+8+48($j,$sp)
lmg %r6,%r15,0(%r1)
lghi %r2,1 # signal "processed"
br %r14
.size bn_mul_mont,.-bn_mul_mont
.string "Montgomery Multiplication for s390x, CRYPTOGAMS by <appro\@openssl.org>"
___
print $code;
close STDOUT;

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@ -0,0 +1,678 @@
.ident "s390x.S, version 1.1"
// ====================================================================
// Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
// project.
//
// Rights for redistribution and usage in source and binary forms are
// granted according to the OpenSSL license. Warranty of any kind is
// disclaimed.
// ====================================================================
.text
#define zero %r0
// BN_ULONG bn_mul_add_words(BN_ULONG *r2,BN_ULONG *r3,int r4,BN_ULONG r5);
.globl bn_mul_add_words
.type bn_mul_add_words,@function
.align 4
bn_mul_add_words:
lghi zero,0 // zero = 0
la %r1,0(%r2) // put rp aside
lghi %r2,0 // i=0;
ltgfr %r4,%r4
bler %r14 // if (len<=0) return 0;
stmg %r6,%r10,48(%r15)
lghi %r10,3
lghi %r8,0 // carry = 0
nr %r10,%r4 // len%4
sra %r4,2 // cnt=len/4
jz .Loop1_madd // carry is incidentally cleared if branch taken
algr zero,zero // clear carry
.Loop4_madd:
lg %r7,0(%r2,%r3) // ap[i]
mlgr %r6,%r5 // *=w
alcgr %r7,%r8 // +=carry
alcgr %r6,zero
alg %r7,0(%r2,%r1) // +=rp[i]
stg %r7,0(%r2,%r1) // rp[i]=
lg %r9,8(%r2,%r3)
mlgr %r8,%r5
alcgr %r9,%r6
alcgr %r8,zero
alg %r9,8(%r2,%r1)
stg %r9,8(%r2,%r1)
lg %r7,16(%r2,%r3)
mlgr %r6,%r5
alcgr %r7,%r8
alcgr %r6,zero
alg %r7,16(%r2,%r1)
stg %r7,16(%r2,%r1)
lg %r9,24(%r2,%r3)
mlgr %r8,%r5
alcgr %r9,%r6
alcgr %r8,zero
alg %r9,24(%r2,%r1)
stg %r9,24(%r2,%r1)
la %r2,32(%r2) // i+=4
brct %r4,.Loop4_madd
la %r10,1(%r10) // see if len%4 is zero ...
brct %r10,.Loop1_madd // without touching condition code:-)
.Lend_madd:
alcgr %r8,zero // collect carry bit
lgr %r2,%r8
lmg %r6,%r10,48(%r15)
br %r14
.Loop1_madd:
lg %r7,0(%r2,%r3) // ap[i]
mlgr %r6,%r5 // *=w
alcgr %r7,%r8 // +=carry
alcgr %r6,zero
alg %r7,0(%r2,%r1) // +=rp[i]
stg %r7,0(%r2,%r1) // rp[i]=
lgr %r8,%r6
la %r2,8(%r2) // i++
brct %r10,.Loop1_madd
j .Lend_madd
.size bn_mul_add_words,.-bn_mul_add_words
// BN_ULONG bn_mul_words(BN_ULONG *r2,BN_ULONG *r3,int r4,BN_ULONG r5);
.globl bn_mul_words
.type bn_mul_words,@function
.align 4
bn_mul_words:
lghi zero,0 // zero = 0
la %r1,0(%r2) // put rp aside
lghi %r2,0 // i=0;
ltgfr %r4,%r4
bler %r14 // if (len<=0) return 0;
stmg %r6,%r10,48(%r15)
lghi %r10,3
lghi %r8,0 // carry = 0
nr %r10,%r4 // len%4
sra %r4,2 // cnt=len/4
jz .Loop1_mul // carry is incidentally cleared if branch taken
algr zero,zero // clear carry
.Loop4_mul:
lg %r7,0(%r2,%r3) // ap[i]
mlgr %r6,%r5 // *=w
alcgr %r7,%r8 // +=carry
stg %r7,0(%r2,%r1) // rp[i]=
lg %r9,8(%r2,%r3)
mlgr %r8,%r5
alcgr %r9,%r6
stg %r9,8(%r2,%r1)
lg %r7,16(%r2,%r3)
mlgr %r6,%r5
alcgr %r7,%r8
stg %r7,16(%r2,%r1)
lg %r9,24(%r2,%r3)
mlgr %r8,%r5
alcgr %r9,%r6
stg %r9,24(%r2,%r1)
la %r2,32(%r2) // i+=4
brct %r4,.Loop4_mul
la %r10,1(%r10) // see if len%4 is zero ...
brct %r10,.Loop1_mul // without touching condition code:-)
.Lend_mul:
alcgr %r8,zero // collect carry bit
lgr %r2,%r8
lmg %r6,%r10,48(%r15)
br %r14
.Loop1_mul:
lg %r7,0(%r2,%r3) // ap[i]
mlgr %r6,%r5 // *=w
alcgr %r7,%r8 // +=carry
stg %r7,0(%r2,%r1) // rp[i]=
lgr %r8,%r6
la %r2,8(%r2) // i++
brct %r10,.Loop1_mul
j .Lend_mul
.size bn_mul_words,.-bn_mul_words
// void bn_sqr_words(BN_ULONG *r2,BN_ULONG *r2,int r4)
.globl bn_sqr_words
.type bn_sqr_words,@function
.align 4
bn_sqr_words:
ltgfr %r4,%r4
bler %r14
stmg %r6,%r7,48(%r15)
srag %r1,%r4,2 // cnt=len/4
jz .Loop1_sqr
.Loop4_sqr:
lg %r7,0(%r3)
mlgr %r6,%r7
stg %r7,0(%r2)
stg %r6,8(%r2)
lg %r7,8(%r3)
mlgr %r6,%r7
stg %r7,16(%r2)
stg %r6,24(%r2)
lg %r7,16(%r3)
mlgr %r6,%r7
stg %r7,32(%r2)
stg %r6,40(%r2)
lg %r7,24(%r3)
mlgr %r6,%r7
stg %r7,48(%r2)
stg %r6,56(%r2)
la %r3,32(%r3)
la %r2,64(%r2)
brct %r1,.Loop4_sqr
lghi %r1,3
nr %r4,%r1 // cnt=len%4
jz .Lend_sqr
.Loop1_sqr:
lg %r7,0(%r3)
mlgr %r6,%r7
stg %r7,0(%r2)
stg %r6,8(%r2)
la %r3,8(%r3)
la %r2,16(%r2)
brct %r4,.Loop1_sqr
.Lend_sqr:
lmg %r6,%r7,48(%r15)
br %r14
.size bn_sqr_words,.-bn_sqr_words
// BN_ULONG bn_div_words(BN_ULONG h,BN_ULONG l,BN_ULONG d);
.globl bn_div_words
.type bn_div_words,@function
.align 4
bn_div_words:
dlgr %r2,%r4
lgr %r2,%r3
br %r14
.size bn_div_words,.-bn_div_words
// BN_ULONG bn_add_words(BN_ULONG *r2,BN_ULONG *r3,BN_ULONG *r4,int r5);
.globl bn_add_words
.type bn_add_words,@function
.align 4
bn_add_words:
la %r1,0(%r2) // put rp aside
lghi %r2,0 // i=0
ltgfr %r5,%r5
bler %r14 // if (len<=0) return 0;
stg %r6,48(%r15)
lghi %r6,3
nr %r6,%r5 // len%4
sra %r5,2 // len/4, use sra because it sets condition code
jz .Loop1_add // carry is incidentally cleared if branch taken
algr %r2,%r2 // clear carry
.Loop4_add:
lg %r0,0(%r2,%r3)
alcg %r0,0(%r2,%r4)
stg %r0,0(%r2,%r1)
lg %r0,8(%r2,%r3)
alcg %r0,8(%r2,%r4)
stg %r0,8(%r2,%r1)
lg %r0,16(%r2,%r3)
alcg %r0,16(%r2,%r4)
stg %r0,16(%r2,%r1)
lg %r0,24(%r2,%r3)
alcg %r0,24(%r2,%r4)
stg %r0,24(%r2,%r1)
la %r2,32(%r2) // i+=4
brct %r5,.Loop4_add
la %r6,1(%r6) // see if len%4 is zero ...
brct %r6,.Loop1_add // without touching condition code:-)
.Lexit_add:
lghi %r2,0
alcgr %r2,%r2
lg %r6,48(%r15)
br %r14
.Loop1_add:
lg %r0,0(%r2,%r3)
alcg %r0,0(%r2,%r4)
stg %r0,0(%r2,%r1)
la %r2,8(%r2) // i++
brct %r6,.Loop1_add
j .Lexit_add
.size bn_add_words,.-bn_add_words
// BN_ULONG bn_sub_words(BN_ULONG *r2,BN_ULONG *r3,BN_ULONG *r4,int r5);
.globl bn_sub_words
.type bn_sub_words,@function
.align 4
bn_sub_words:
la %r1,0(%r2) // put rp aside
lghi %r2,0 // i=0
ltgfr %r5,%r5
bler %r14 // if (len<=0) return 0;
stg %r6,48(%r15)
lghi %r6,3
nr %r6,%r5 // len%4
sra %r5,2 // len/4, use sra because it sets condition code
jnz .Loop4_sub // borrow is incidentally cleared if branch taken
slgr %r2,%r2 // clear borrow
.Loop1_sub:
lg %r0,0(%r2,%r3)
slbg %r0,0(%r2,%r4)
stg %r0,0(%r2,%r1)
la %r2,8(%r2) // i++
brct %r6,.Loop1_sub
j .Lexit_sub
.Loop4_sub:
lg %r0,0(%r2,%r3)
slbg %r0,0(%r2,%r4)
stg %r0,0(%r2,%r1)
lg %r0,8(%r2,%r3)
slbg %r0,8(%r2,%r4)
stg %r0,8(%r2,%r1)
lg %r0,16(%r2,%r3)
slbg %r0,16(%r2,%r4)
stg %r0,16(%r2,%r1)
lg %r0,24(%r2,%r3)
slbg %r0,24(%r2,%r4)
stg %r0,24(%r2,%r1)
la %r2,32(%r2) // i+=4
brct %r5,.Loop4_sub
la %r6,1(%r6) // see if len%4 is zero ...
brct %r6,.Loop1_sub // without touching condition code:-)
.Lexit_sub:
lghi %r2,0
slbgr %r2,%r2
lcgr %r2,%r2
lg %r6,48(%r15)
br %r14
.size bn_sub_words,.-bn_sub_words
#define c1 %r1
#define c2 %r5
#define c3 %r8
#define mul_add_c(ai,bi,c1,c2,c3) \
lg %r7,ai*8(%r3); \
mlg %r6,bi*8(%r4); \
algr c1,%r7; \
alcgr c2,%r6; \
alcgr c3,zero
// void bn_mul_comba8(BN_ULONG *r2,BN_ULONG *r3,BN_ULONG *r4);
.globl bn_mul_comba8
.type bn_mul_comba8,@function
.align 4
bn_mul_comba8:
stmg %r6,%r8,48(%r15)
lghi c1,0
lghi c2,0
lghi c3,0
lghi zero,0
mul_add_c(0,0,c1,c2,c3);
stg c1,0*8(%r2)
lghi c1,0
mul_add_c(0,1,c2,c3,c1);
mul_add_c(1,0,c2,c3,c1);
stg c2,1*8(%r2)
lghi c2,0
mul_add_c(2,0,c3,c1,c2);
mul_add_c(1,1,c3,c1,c2);
mul_add_c(0,2,c3,c1,c2);
stg c3,2*8(%r2)
lghi c3,0
mul_add_c(0,3,c1,c2,c3);
mul_add_c(1,2,c1,c2,c3);
mul_add_c(2,1,c1,c2,c3);
mul_add_c(3,0,c1,c2,c3);
stg c1,3*8(%r2)
lghi c1,0
mul_add_c(4,0,c2,c3,c1);
mul_add_c(3,1,c2,c3,c1);
mul_add_c(2,2,c2,c3,c1);
mul_add_c(1,3,c2,c3,c1);
mul_add_c(0,4,c2,c3,c1);
stg c2,4*8(%r2)
lghi c2,0
mul_add_c(0,5,c3,c1,c2);
mul_add_c(1,4,c3,c1,c2);
mul_add_c(2,3,c3,c1,c2);
mul_add_c(3,2,c3,c1,c2);
mul_add_c(4,1,c3,c1,c2);
mul_add_c(5,0,c3,c1,c2);
stg c3,5*8(%r2)
lghi c3,0
mul_add_c(6,0,c1,c2,c3);
mul_add_c(5,1,c1,c2,c3);
mul_add_c(4,2,c1,c2,c3);
mul_add_c(3,3,c1,c2,c3);
mul_add_c(2,4,c1,c2,c3);
mul_add_c(1,5,c1,c2,c3);
mul_add_c(0,6,c1,c2,c3);
stg c1,6*8(%r2)
lghi c1,0
mul_add_c(0,7,c2,c3,c1);
mul_add_c(1,6,c2,c3,c1);
mul_add_c(2,5,c2,c3,c1);
mul_add_c(3,4,c2,c3,c1);
mul_add_c(4,3,c2,c3,c1);
mul_add_c(5,2,c2,c3,c1);
mul_add_c(6,1,c2,c3,c1);
mul_add_c(7,0,c2,c3,c1);
stg c2,7*8(%r2)
lghi c2,0
mul_add_c(7,1,c3,c1,c2);
mul_add_c(6,2,c3,c1,c2);
mul_add_c(5,3,c3,c1,c2);
mul_add_c(4,4,c3,c1,c2);
mul_add_c(3,5,c3,c1,c2);
mul_add_c(2,6,c3,c1,c2);
mul_add_c(1,7,c3,c1,c2);
stg c3,8*8(%r2)
lghi c3,0
mul_add_c(2,7,c1,c2,c3);
mul_add_c(3,6,c1,c2,c3);
mul_add_c(4,5,c1,c2,c3);
mul_add_c(5,4,c1,c2,c3);
mul_add_c(6,3,c1,c2,c3);
mul_add_c(7,2,c1,c2,c3);
stg c1,9*8(%r2)
lghi c1,0
mul_add_c(7,3,c2,c3,c1);
mul_add_c(6,4,c2,c3,c1);
mul_add_c(5,5,c2,c3,c1);
mul_add_c(4,6,c2,c3,c1);
mul_add_c(3,7,c2,c3,c1);
stg c2,10*8(%r2)
lghi c2,0
mul_add_c(4,7,c3,c1,c2);
mul_add_c(5,6,c3,c1,c2);
mul_add_c(6,5,c3,c1,c2);
mul_add_c(7,4,c3,c1,c2);
stg c3,11*8(%r2)
lghi c3,0
mul_add_c(7,5,c1,c2,c3);
mul_add_c(6,6,c1,c2,c3);
mul_add_c(5,7,c1,c2,c3);
stg c1,12*8(%r2)
lghi c1,0
mul_add_c(6,7,c2,c3,c1);
mul_add_c(7,6,c2,c3,c1);
stg c2,13*8(%r2)
lghi c2,0
mul_add_c(7,7,c3,c1,c2);
stg c3,14*8(%r2)
stg c1,15*8(%r2)
lmg %r6,%r8,48(%r15)
br %r14
.size bn_mul_comba8,.-bn_mul_comba8
// void bn_mul_comba4(BN_ULONG *r2,BN_ULONG *r3,BN_ULONG *r4);
.globl bn_mul_comba4
.type bn_mul_comba4,@function
.align 4
bn_mul_comba4:
stmg %r6,%r8,48(%r15)
lghi c1,0
lghi c2,0
lghi c3,0
lghi zero,0
mul_add_c(0,0,c1,c2,c3);
stg c1,0*8(%r3)
lghi c1,0
mul_add_c(0,1,c2,c3,c1);
mul_add_c(1,0,c2,c3,c1);
stg c2,1*8(%r2)
lghi c2,0
mul_add_c(2,0,c3,c1,c2);
mul_add_c(1,1,c3,c1,c2);
mul_add_c(0,2,c3,c1,c2);
stg c3,2*8(%r2)
lghi c3,0
mul_add_c(0,3,c1,c2,c3);
mul_add_c(1,2,c1,c2,c3);
mul_add_c(2,1,c1,c2,c3);
mul_add_c(3,0,c1,c2,c3);
stg c1,3*8(%r2)
lghi c1,0
mul_add_c(3,1,c2,c3,c1);
mul_add_c(2,2,c2,c3,c1);
mul_add_c(1,3,c2,c3,c1);
stg c2,4*8(%r2)
lghi c2,0
mul_add_c(2,3,c3,c1,c2);
mul_add_c(3,2,c3,c1,c2);
stg c3,5*8(%r2)
lghi c3,0
mul_add_c(3,3,c1,c2,c3);
stg c1,6*8(%r2)
stg c2,7*8(%r2)
stmg %r6,%r8,48(%r15)
br %r14
.size bn_mul_comba4,.-bn_mul_comba4
#define sqr_add_c(ai,c1,c2,c3) \
lg %r7,ai*8(%r3); \
mlgr %r6,%r7; \
algr c1,%r7; \
alcgr c2,%r6; \
alcgr c3,zero
#define sqr_add_c2(ai,aj,c1,c2,c3) \
lg %r7,ai*8(%r3); \
mlg %r6,aj*8(%r3); \
algr c1,%r7; \
alcgr c2,%r6; \
alcgr c3,zero; \
algr c1,%r7; \
alcgr c2,%r6; \
alcgr c3,zero
// void bn_sqr_comba8(BN_ULONG *r2,BN_ULONG *r3);
.globl bn_sqr_comba8
.type bn_sqr_comba8,@function
.align 4
bn_sqr_comba8:
stmg %r6,%r8,48(%r15)
lghi c1,0
lghi c2,0
lghi c3,0
lghi zero,0
sqr_add_c(0,c1,c2,c3);
stg c1,0*8(%r2)
lghi c1,0
sqr_add_c2(1,0,c2,c3,c1);
stg c2,1*8(%r2)
lghi c2,0
sqr_add_c(1,c3,c1,c2);
sqr_add_c2(2,0,c3,c1,c2);
stg c3,2*8(%r2)
lghi c3,0
sqr_add_c2(3,0,c1,c2,c3);
sqr_add_c2(2,1,c1,c2,c3);
stg c1,3*8(%r2)
lghi c1,0
sqr_add_c(2,c2,c3,c1);
sqr_add_c2(3,1,c2,c3,c1);
sqr_add_c2(4,0,c2,c3,c1);
stg c2,4*8(%r2)
lghi c2,0
sqr_add_c2(5,0,c3,c1,c2);
sqr_add_c2(4,1,c3,c1,c2);
sqr_add_c2(3,2,c3,c1,c2);
stg c3,5*8(%r2)
lghi c3,0
sqr_add_c(3,c1,c2,c3);
sqr_add_c2(4,2,c1,c2,c3);
sqr_add_c2(5,1,c1,c2,c3);
sqr_add_c2(6,0,c1,c2,c3);
stg c1,6*8(%r2)
lghi c1,0
sqr_add_c2(7,0,c2,c3,c1);
sqr_add_c2(6,1,c2,c3,c1);
sqr_add_c2(5,2,c2,c3,c1);
sqr_add_c2(4,3,c2,c3,c1);
stg c2,7*8(%r2)
lghi c2,0
sqr_add_c(4,c3,c1,c2);
sqr_add_c2(5,3,c3,c1,c2);
sqr_add_c2(6,2,c3,c1,c2);
sqr_add_c2(7,1,c3,c1,c2);
stg c3,8*8(%r2)
lghi c3,0
sqr_add_c2(7,2,c1,c2,c3);
sqr_add_c2(6,3,c1,c2,c3);
sqr_add_c2(5,4,c1,c2,c3);
stg c1,9*8(%r2)
lghi c1,0
sqr_add_c(5,c2,c3,c1);
sqr_add_c2(6,4,c2,c3,c1);
sqr_add_c2(7,3,c2,c3,c1);
stg c2,10*8(%r2)
lghi c2,0
sqr_add_c2(7,4,c3,c1,c2);
sqr_add_c2(6,5,c3,c1,c2);
stg c3,11*8(%r2)
lghi c3,0
sqr_add_c(6,c1,c2,c3);
sqr_add_c2(7,5,c1,c2,c3);
stg c1,12*8(%r2)
lghi c1,0
sqr_add_c2(7,6,c2,c3,c1);
stg c2,13*8(%r2)
lghi c2,0
sqr_add_c(7,c3,c1,c2);
stg c3,14*8(%r2)
stg c1,15*8(%r2)
lmg %r6,%r8,48(%r15)
br %r14
.size bn_sqr_comba8,.-bn_sqr_comba8
// void bn_sqr_comba4(BN_ULONG *r2,BN_ULONG *r3);
.globl bn_sqr_comba4
.type bn_sqr_comba4,@function
.align 4
bn_sqr_comba4:
stmg %r6,%r8,48(%r15)
lghi c1,0
lghi c2,0
lghi c3,0
lghi zero,0
sqr_add_c(0,c1,c2,c3);
stg c1,0*8(%r2)
lghi c1,0
sqr_add_c2(1,0,c2,c3,c1);
stg c2,1*8(%r2)
lghi c2,0
sqr_add_c(1,c3,c1,c2);
sqr_add_c2(2,0,c3,c1,c2);
stg c3,2*8(%r2)
lghi c3,0
sqr_add_c2(3,0,c1,c2,c3);
sqr_add_c2(2,1,c1,c2,c3);
stg c1,3*8(%r2)
lghi c1,0
sqr_add_c(2,c2,c3,c1);
sqr_add_c2(3,1,c2,c3,c1);
stg c2,4*8(%r2)
lghi c2,0
sqr_add_c2(3,2,c3,c1,c2);
stg c3,5*8(%r2)
lghi c3,0
sqr_add_c(3,c1,c2,c3);
stg c1,6*8(%r2)
stg c2,7*8(%r2)
lmg %r6,%r8,48(%r15)
br %r14
.size bn_sqr_comba4,.-bn_sqr_comba4

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#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# December 2005
#
# Pure SPARCv9/8+ and IALU-only bn_mul_mont implementation. The reasons
# for undertaken effort are multiple. First of all, UltraSPARC is not
# the whole SPARCv9 universe and other VIS-free implementations deserve
# optimized code as much. Secondly, newly introduced UltraSPARC T1,
# a.k.a. Niagara, has shared FPU and concurrent FPU-intensive pathes,
# such as sparcv9a-mont, will simply sink it. Yes, T1 is equipped with
# several integrated RSA/DSA accelerator circuits accessible through
# kernel driver [only(*)], but having decent user-land software
# implementation is important too. Finally, reasons like desire to
# experiment with dedicated squaring procedure. Yes, this module
# implements one, because it was easiest to draft it in SPARCv9
# instructions...
# (*) Engine accessing the driver in question is on my TODO list.
# For reference, acceleator is estimated to give 6 to 10 times
# improvement on single-threaded RSA sign. It should be noted
# that 6-10x improvement coefficient does not actually mean
# something extraordinary in terms of absolute [single-threaded]
# performance, as SPARCv9 instruction set is by all means least
# suitable for high performance crypto among other 64 bit
# platforms. 6-10x factor simply places T1 in same performance
# domain as say AMD64 and IA-64. Improvement of RSA verify don't
# appear impressive at all, but it's the sign operation which is
# far more critical/interesting.
# You might notice that inner loops are modulo-scheduled:-) This has
# essentially negligible impact on UltraSPARC performance, it's
# Fujitsu SPARC64 V users who should notice and hopefully appreciate
# the advantage... Currently this module surpasses sparcv9a-mont.pl
# by ~20% on UltraSPARC-III and later cores, but recall that sparcv9a
# module still have hidden potential [see TODO list there], which is
# estimated to be larger than 20%...
# int bn_mul_mont(
$rp="%i0"; # BN_ULONG *rp,
$ap="%i1"; # const BN_ULONG *ap,
$bp="%i2"; # const BN_ULONG *bp,
$np="%i3"; # const BN_ULONG *np,
$n0="%i4"; # const BN_ULONG *n0,
$num="%i5"; # int num);
$bits=32;
for (@ARGV) { $bits=64 if (/\-m64/ || /\-xarch\=v9/); }
if ($bits==64) { $bias=2047; $frame=192; }
else { $bias=0; $frame=128; }
$car0="%o0";
$car1="%o1";
$car2="%o2"; # 1 bit
$acc0="%o3";
$acc1="%o4";
$mask="%g1"; # 32 bits, what a waste...
$tmp0="%g4";
$tmp1="%g5";
$i="%l0";
$j="%l1";
$mul0="%l2";
$mul1="%l3";
$tp="%l4";
$apj="%l5";
$npj="%l6";
$tpj="%l7";
$fname="bn_mul_mont_int";
$code=<<___;
.section ".text",#alloc,#execinstr
.global $fname
.align 32
$fname:
cmp %o5,4 ! 128 bits minimum
bge,pt %icc,.Lenter
sethi %hi(0xffffffff),$mask
retl
clr %o0
.align 32
.Lenter:
save %sp,-$frame,%sp
sll $num,2,$num ! num*=4
or $mask,%lo(0xffffffff),$mask
ld [$n0],$n0
cmp $ap,$bp
and $num,$mask,$num
ld [$bp],$mul0 ! bp[0]
nop
add %sp,$bias,%o7 ! real top of stack
ld [$ap],$car0 ! ap[0] ! redundant in squaring context
sub %o7,$num,%o7
ld [$ap+4],$apj ! ap[1]
and %o7,-1024,%o7
ld [$np],$car1 ! np[0]
sub %o7,$bias,%sp ! alloca
ld [$np+4],$npj ! np[1]
be,pt `$bits==32?"%icc":"%xcc"`,.Lbn_sqr_mont
mov 12,$j
mulx $car0,$mul0,$car0 ! ap[0]*bp[0]
mulx $apj,$mul0,$tmp0 !prologue! ap[1]*bp[0]
and $car0,$mask,$acc0
add %sp,$bias+$frame,$tp
ld [$ap+8],$apj !prologue!
mulx $n0,$acc0,$mul1 ! "t[0]"*n0
and $mul1,$mask,$mul1
mulx $car1,$mul1,$car1 ! np[0]*"t[0]"*n0
mulx $npj,$mul1,$acc1 !prologue! np[1]*"t[0]"*n0
srlx $car0,32,$car0
add $acc0,$car1,$car1
ld [$np+8],$npj !prologue!
srlx $car1,32,$car1
mov $tmp0,$acc0 !prologue!
.L1st:
mulx $apj,$mul0,$tmp0
mulx $npj,$mul1,$tmp1
add $acc0,$car0,$car0
ld [$ap+$j],$apj ! ap[j]
and $car0,$mask,$acc0
add $acc1,$car1,$car1
ld [$np+$j],$npj ! np[j]
srlx $car0,32,$car0
add $acc0,$car1,$car1
add $j,4,$j ! j++
mov $tmp0,$acc0
st $car1,[$tp]
cmp $j,$num
mov $tmp1,$acc1
srlx $car1,32,$car1
bl %icc,.L1st
add $tp,4,$tp ! tp++
!.L1st
mulx $apj,$mul0,$tmp0 !epilogue!
mulx $npj,$mul1,$tmp1
add $acc0,$car0,$car0
and $car0,$mask,$acc0
add $acc1,$car1,$car1
srlx $car0,32,$car0
add $acc0,$car1,$car1
st $car1,[$tp]
srlx $car1,32,$car1
add $tmp0,$car0,$car0
and $car0,$mask,$acc0
add $tmp1,$car1,$car1
srlx $car0,32,$car0
add $acc0,$car1,$car1
st $car1,[$tp+4]
srlx $car1,32,$car1
add $car0,$car1,$car1
st $car1,[$tp+8]
srlx $car1,32,$car2
mov 4,$i ! i++
ld [$bp+4],$mul0 ! bp[1]
.Louter:
add %sp,$bias+$frame,$tp
ld [$ap],$car0 ! ap[0]
ld [$ap+4],$apj ! ap[1]
ld [$np],$car1 ! np[0]
ld [$np+4],$npj ! np[1]
ld [$tp],$tmp1 ! tp[0]
ld [$tp+4],$tpj ! tp[1]
mov 12,$j
mulx $car0,$mul0,$car0
mulx $apj,$mul0,$tmp0 !prologue!
add $tmp1,$car0,$car0
ld [$ap+8],$apj !prologue!
and $car0,$mask,$acc0
mulx $n0,$acc0,$mul1
and $mul1,$mask,$mul1
mulx $car1,$mul1,$car1
mulx $npj,$mul1,$acc1 !prologue!
srlx $car0,32,$car0
add $acc0,$car1,$car1
ld [$np+8],$npj !prologue!
srlx $car1,32,$car1
mov $tmp0,$acc0 !prologue!
.Linner:
mulx $apj,$mul0,$tmp0
mulx $npj,$mul1,$tmp1
add $tpj,$car0,$car0
ld [$ap+$j],$apj ! ap[j]
add $acc0,$car0,$car0
add $acc1,$car1,$car1
ld [$np+$j],$npj ! np[j]
and $car0,$mask,$acc0
ld [$tp+8],$tpj ! tp[j]
srlx $car0,32,$car0
add $acc0,$car1,$car1
add $j,4,$j ! j++
mov $tmp0,$acc0
st $car1,[$tp] ! tp[j-1]
srlx $car1,32,$car1
mov $tmp1,$acc1
cmp $j,$num
bl %icc,.Linner
add $tp,4,$tp ! tp++
!.Linner
mulx $apj,$mul0,$tmp0 !epilogue!
mulx $npj,$mul1,$tmp1
add $tpj,$car0,$car0
add $acc0,$car0,$car0
ld [$tp+8],$tpj ! tp[j]
and $car0,$mask,$acc0
add $acc1,$car1,$car1
srlx $car0,32,$car0
add $acc0,$car1,$car1
st $car1,[$tp] ! tp[j-1]
srlx $car1,32,$car1
add $tpj,$car0,$car0
add $tmp0,$car0,$car0
and $car0,$mask,$acc0
add $tmp1,$car1,$car1
add $acc0,$car1,$car1
st $car1,[$tp+4] ! tp[j-1]
srlx $car0,32,$car0
add $i,4,$i ! i++
srlx $car1,32,$car1
add $car0,$car1,$car1
cmp $i,$num
add $car2,$car1,$car1
st $car1,[$tp+8]
srlx $car1,32,$car2
bl,a %icc,.Louter
ld [$bp+$i],$mul0 ! bp[i]
!.Louter
add $tp,12,$tp
.Ltail:
add $np,$num,$np
add $rp,$num,$rp
mov $tp,$ap
sub %g0,$num,%o7 ! k=-num
ba .Lsub
subcc %g0,%g0,%g0 ! clear %icc.c
.align 16
.Lsub:
ld [$tp+%o7],%o0
ld [$np+%o7],%o1
subccc %o0,%o1,%o1 ! tp[j]-np[j]
add $rp,%o7,$i
add %o7,4,%o7
brnz %o7,.Lsub
st %o1,[$i]
subc $car2,0,$car2 ! handle upmost overflow bit
and $tp,$car2,$ap
andn $rp,$car2,$np
or $ap,$np,$ap
sub %g0,$num,%o7
.Lcopy:
ld [$ap+%o7],%o0 ! copy or in-place refresh
st %g0,[$tp+%o7] ! zap tp
st %o0,[$rp+%o7]
add %o7,4,%o7
brnz %o7,.Lcopy
nop
mov 1,%i0
ret
restore
___
########
######## .Lbn_sqr_mont gives up to 20% *overall* improvement over
######## code without following dedicated squaring procedure.
########
$sbit="%i2"; # re-use $bp!
$code.=<<___;
.align 32
.Lbn_sqr_mont:
mulx $mul0,$mul0,$car0 ! ap[0]*ap[0]
mulx $apj,$mul0,$tmp0 !prologue!
and $car0,$mask,$acc0
add %sp,$bias+$frame,$tp
ld [$ap+8],$apj !prologue!
mulx $n0,$acc0,$mul1 ! "t[0]"*n0
srlx $car0,32,$car0
and $mul1,$mask,$mul1
mulx $car1,$mul1,$car1 ! np[0]*"t[0]"*n0
mulx $npj,$mul1,$acc1 !prologue!
and $car0,1,$sbit
ld [$np+8],$npj !prologue!
srlx $car0,1,$car0
add $acc0,$car1,$car1
srlx $car1,32,$car1
mov $tmp0,$acc0 !prologue!
.Lsqr_1st:
mulx $apj,$mul0,$tmp0
mulx $npj,$mul1,$tmp1
add $acc0,$car0,$car0 ! ap[j]*a0+c0
add $acc1,$car1,$car1
ld [$ap+$j],$apj ! ap[j]
and $car0,$mask,$acc0
ld [$np+$j],$npj ! np[j]
srlx $car0,32,$car0
add $acc0,$acc0,$acc0
or $sbit,$acc0,$acc0
mov $tmp1,$acc1
srlx $acc0,32,$sbit
add $j,4,$j ! j++
and $acc0,$mask,$acc0
cmp $j,$num
add $acc0,$car1,$car1
st $car1,[$tp]
mov $tmp0,$acc0
srlx $car1,32,$car1
bl %icc,.Lsqr_1st
add $tp,4,$tp ! tp++
!.Lsqr_1st
mulx $apj,$mul0,$tmp0 ! epilogue
mulx $npj,$mul1,$tmp1
add $acc0,$car0,$car0 ! ap[j]*a0+c0
add $acc1,$car1,$car1
and $car0,$mask,$acc0
srlx $car0,32,$car0
add $acc0,$acc0,$acc0
or $sbit,$acc0,$acc0
srlx $acc0,32,$sbit
and $acc0,$mask,$acc0
add $acc0,$car1,$car1
st $car1,[$tp]
srlx $car1,32,$car1
add $tmp0,$car0,$car0 ! ap[j]*a0+c0
add $tmp1,$car1,$car1
and $car0,$mask,$acc0
srlx $car0,32,$car0
add $acc0,$acc0,$acc0
or $sbit,$acc0,$acc0
srlx $acc0,32,$sbit
and $acc0,$mask,$acc0
add $acc0,$car1,$car1
st $car1,[$tp+4]
srlx $car1,32,$car1
add $car0,$car0,$car0
or $sbit,$car0,$car0
add $car0,$car1,$car1
st $car1,[$tp+8]
srlx $car1,32,$car2
ld [%sp+$bias+$frame],$tmp0 ! tp[0]
ld [%sp+$bias+$frame+4],$tmp1 ! tp[1]
ld [%sp+$bias+$frame+8],$tpj ! tp[2]
ld [$ap+4],$mul0 ! ap[1]
ld [$ap+8],$apj ! ap[2]
ld [$np],$car1 ! np[0]
ld [$np+4],$npj ! np[1]
mulx $n0,$tmp0,$mul1
mulx $mul0,$mul0,$car0
and $mul1,$mask,$mul1
mulx $car1,$mul1,$car1
mulx $npj,$mul1,$acc1
add $tmp0,$car1,$car1
and $car0,$mask,$acc0
ld [$np+8],$npj ! np[2]
srlx $car1,32,$car1
add $tmp1,$car1,$car1
srlx $car0,32,$car0
add $acc0,$car1,$car1
and $car0,1,$sbit
add $acc1,$car1,$car1
srlx $car0,1,$car0
mov 12,$j
st $car1,[%sp+$bias+$frame] ! tp[0]=
srlx $car1,32,$car1
add %sp,$bias+$frame+4,$tp
.Lsqr_2nd:
mulx $apj,$mul0,$acc0
mulx $npj,$mul1,$acc1
add $acc0,$car0,$car0
add $tpj,$car1,$car1
ld [$ap+$j],$apj ! ap[j]
and $car0,$mask,$acc0
ld [$np+$j],$npj ! np[j]
srlx $car0,32,$car0
add $acc1,$car1,$car1
ld [$tp+8],$tpj ! tp[j]
add $acc0,$acc0,$acc0
add $j,4,$j ! j++
or $sbit,$acc0,$acc0
srlx $acc0,32,$sbit
and $acc0,$mask,$acc0
cmp $j,$num
add $acc0,$car1,$car1
st $car1,[$tp] ! tp[j-1]
srlx $car1,32,$car1
bl %icc,.Lsqr_2nd
add $tp,4,$tp ! tp++
!.Lsqr_2nd
mulx $apj,$mul0,$acc0
mulx $npj,$mul1,$acc1
add $acc0,$car0,$car0
add $tpj,$car1,$car1
and $car0,$mask,$acc0
srlx $car0,32,$car0
add $acc1,$car1,$car1
add $acc0,$acc0,$acc0
or $sbit,$acc0,$acc0
srlx $acc0,32,$sbit
and $acc0,$mask,$acc0
add $acc0,$car1,$car1
st $car1,[$tp] ! tp[j-1]
srlx $car1,32,$car1
add $car0,$car0,$car0
or $sbit,$car0,$car0
add $car0,$car1,$car1
add $car2,$car1,$car1
st $car1,[$tp+4]
srlx $car1,32,$car2
ld [%sp+$bias+$frame],$tmp1 ! tp[0]
ld [%sp+$bias+$frame+4],$tpj ! tp[1]
ld [$ap+8],$mul0 ! ap[2]
ld [$np],$car1 ! np[0]
ld [$np+4],$npj ! np[1]
mulx $n0,$tmp1,$mul1
and $mul1,$mask,$mul1
mov 8,$i
mulx $mul0,$mul0,$car0
mulx $car1,$mul1,$car1
and $car0,$mask,$acc0
add $tmp1,$car1,$car1
srlx $car0,32,$car0
add %sp,$bias+$frame,$tp
srlx $car1,32,$car1
and $car0,1,$sbit
srlx $car0,1,$car0
mov 4,$j
.Lsqr_outer:
.Lsqr_inner1:
mulx $npj,$mul1,$acc1
add $tpj,$car1,$car1
add $j,4,$j
ld [$tp+8],$tpj
cmp $j,$i
add $acc1,$car1,$car1
ld [$np+$j],$npj
st $car1,[$tp]
srlx $car1,32,$car1
bl %icc,.Lsqr_inner1
add $tp,4,$tp
!.Lsqr_inner1
add $j,4,$j
ld [$ap+$j],$apj ! ap[j]
mulx $npj,$mul1,$acc1
add $tpj,$car1,$car1
ld [$np+$j],$npj ! np[j]
add $acc0,$car1,$car1
ld [$tp+8],$tpj ! tp[j]
add $acc1,$car1,$car1
st $car1,[$tp]
srlx $car1,32,$car1
add $j,4,$j
cmp $j,$num
be,pn %icc,.Lsqr_no_inner2
add $tp,4,$tp
.Lsqr_inner2:
mulx $apj,$mul0,$acc0
mulx $npj,$mul1,$acc1
add $tpj,$car1,$car1
add $acc0,$car0,$car0
ld [$ap+$j],$apj ! ap[j]
and $car0,$mask,$acc0
ld [$np+$j],$npj ! np[j]
srlx $car0,32,$car0
add $acc0,$acc0,$acc0
ld [$tp+8],$tpj ! tp[j]
or $sbit,$acc0,$acc0
add $j,4,$j ! j++
srlx $acc0,32,$sbit
and $acc0,$mask,$acc0
cmp $j,$num
add $acc0,$car1,$car1
add $acc1,$car1,$car1
st $car1,[$tp] ! tp[j-1]
srlx $car1,32,$car1
bl %icc,.Lsqr_inner2
add $tp,4,$tp ! tp++
.Lsqr_no_inner2:
mulx $apj,$mul0,$acc0
mulx $npj,$mul1,$acc1
add $tpj,$car1,$car1
add $acc0,$car0,$car0
and $car0,$mask,$acc0
srlx $car0,32,$car0
add $acc0,$acc0,$acc0
or $sbit,$acc0,$acc0
srlx $acc0,32,$sbit
and $acc0,$mask,$acc0
add $acc0,$car1,$car1
add $acc1,$car1,$car1
st $car1,[$tp] ! tp[j-1]
srlx $car1,32,$car1
add $car0,$car0,$car0
or $sbit,$car0,$car0
add $car0,$car1,$car1
add $car2,$car1,$car1
st $car1,[$tp+4]
srlx $car1,32,$car2
add $i,4,$i ! i++
ld [%sp+$bias+$frame],$tmp1 ! tp[0]
ld [%sp+$bias+$frame+4],$tpj ! tp[1]
ld [$ap+$i],$mul0 ! ap[j]
ld [$np],$car1 ! np[0]
ld [$np+4],$npj ! np[1]
mulx $n0,$tmp1,$mul1
and $mul1,$mask,$mul1
add $i,4,$tmp0
mulx $mul0,$mul0,$car0
mulx $car1,$mul1,$car1
and $car0,$mask,$acc0
add $tmp1,$car1,$car1
srlx $car0,32,$car0
add %sp,$bias+$frame,$tp
srlx $car1,32,$car1
and $car0,1,$sbit
srlx $car0,1,$car0
cmp $tmp0,$num ! i<num-1
bl %icc,.Lsqr_outer
mov 4,$j
.Lsqr_last:
mulx $npj,$mul1,$acc1
add $tpj,$car1,$car1
add $j,4,$j
ld [$tp+8],$tpj
cmp $j,$i
add $acc1,$car1,$car1
ld [$np+$j],$npj
st $car1,[$tp]
srlx $car1,32,$car1
bl %icc,.Lsqr_last
add $tp,4,$tp
!.Lsqr_last
mulx $npj,$mul1,$acc1
add $tpj,$car1,$car1
add $acc0,$car1,$car1
add $acc1,$car1,$car1
st $car1,[$tp]
srlx $car1,32,$car1
add $car0,$car0,$car0 ! recover $car0
or $sbit,$car0,$car0
add $car0,$car1,$car1
add $car2,$car1,$car1
st $car1,[$tp+4]
srlx $car1,32,$car2
ba .Ltail
add $tp,8,$tp
.type $fname,#function
.size $fname,(.-$fname)
.asciz "Montgomery Multipltication for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>"
.align 32
___
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
print $code;
close STDOUT;

View file

@ -0,0 +1,882 @@
#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# October 2005
#
# "Teaser" Montgomery multiplication module for UltraSPARC. Why FPU?
# Because unlike integer multiplier, which simply stalls whole CPU,
# FPU is fully pipelined and can effectively emit 48 bit partial
# product every cycle. Why not blended SPARC v9? One can argue that
# making this module dependent on UltraSPARC VIS extension limits its
# binary compatibility. Well yes, it does exclude SPARC64 prior-V(!)
# implementations from compatibility matrix. But the rest, whole Sun
# UltraSPARC family and brand new Fujitsu's SPARC64 V, all support
# VIS extension instructions used in this module. This is considered
# good enough to not care about HAL SPARC64 users [if any] who have
# integer-only pure SPARCv9 module to "fall down" to.
# USI&II cores currently exhibit uniform 2x improvement [over pre-
# bn_mul_mont codebase] for all key lengths and benchmarks. On USIII
# performance improves few percents for shorter keys and worsens few
# percents for longer keys. This is because USIII integer multiplier
# is >3x faster than USI&II one, which is harder to match [but see
# TODO list below]. It should also be noted that SPARC64 V features
# out-of-order execution, which *might* mean that integer multiplier
# is pipelined, which in turn *might* be impossible to match... On
# additional note, SPARC64 V implements FP Multiply-Add instruction,
# which is perfectly usable in this context... In other words, as far
# as Fujitsu SPARC64 V goes, talk to the author:-)
# The implementation implies following "non-natural" limitations on
# input arguments:
# - num may not be less than 4;
# - num has to be even;
# Failure to meet either condition has no fatal effects, simply
# doesn't give any performance gain.
# TODO:
# - modulo-schedule inner loop for better performance (on in-order
# execution core such as UltraSPARC this shall result in further
# noticeable(!) improvement);
# - dedicated squaring procedure[?];
######################################################################
# November 2006
#
# Modulo-scheduled inner loops allow to interleave floating point and
# integer instructions and minimize Read-After-Write penalties. This
# results in *further* 20-50% perfromance improvement [depending on
# key length, more for longer keys] on USI&II cores and 30-80% - on
# USIII&IV.
$fname="bn_mul_mont_fpu";
$bits=32;
for (@ARGV) { $bits=64 if (/\-m64/ || /\-xarch\=v9/); }
if ($bits==64) {
$bias=2047;
$frame=192;
} else {
$bias=0;
$frame=128; # 96 rounded up to largest known cache-line
}
$locals=64;
# In order to provide for 32-/64-bit ABI duality, I keep integers wider
# than 32 bit in %g1-%g4 and %o0-%o5. %l0-%l7 and %i0-%i5 are used
# exclusively for pointers, indexes and other small values...
# int bn_mul_mont(
$rp="%i0"; # BN_ULONG *rp,
$ap="%i1"; # const BN_ULONG *ap,
$bp="%i2"; # const BN_ULONG *bp,
$np="%i3"; # const BN_ULONG *np,
$n0="%i4"; # const BN_ULONG *n0,
$num="%i5"; # int num);
$tp="%l0"; # t[num]
$ap_l="%l1"; # a[num],n[num] are smashed to 32-bit words and saved
$ap_h="%l2"; # to these four vectors as double-precision FP values.
$np_l="%l3"; # This way a bunch of fxtods are eliminated in second
$np_h="%l4"; # loop and L1-cache aliasing is minimized...
$i="%l5";
$j="%l6";
$mask="%l7"; # 16-bit mask, 0xffff
$n0="%g4"; # reassigned(!) to "64-bit" register
$carry="%i4"; # %i4 reused(!) for a carry bit
# FP register naming chart
#
# ..HILO
# dcba
# --------
# LOa
# LOb
# LOc
# LOd
# HIa
# HIb
# HIc
# HId
# ..a
# ..b
$ba="%f0"; $bb="%f2"; $bc="%f4"; $bd="%f6";
$na="%f8"; $nb="%f10"; $nc="%f12"; $nd="%f14";
$alo="%f16"; $alo_="%f17"; $ahi="%f18"; $ahi_="%f19";
$nlo="%f20"; $nlo_="%f21"; $nhi="%f22"; $nhi_="%f23";
$dota="%f24"; $dotb="%f26";
$aloa="%f32"; $alob="%f34"; $aloc="%f36"; $alod="%f38";
$ahia="%f40"; $ahib="%f42"; $ahic="%f44"; $ahid="%f46";
$nloa="%f48"; $nlob="%f50"; $nloc="%f52"; $nlod="%f54";
$nhia="%f56"; $nhib="%f58"; $nhic="%f60"; $nhid="%f62";
$ASI_FL16_P=0xD2; # magic ASI value to engage 16-bit FP load
$code=<<___;
.section ".text",#alloc,#execinstr
.global $fname
.align 32
$fname:
save %sp,-$frame-$locals,%sp
cmp $num,4
bl,a,pn %icc,.Lret
clr %i0
andcc $num,1,%g0 ! $num has to be even...
bnz,a,pn %icc,.Lret
clr %i0 ! signal "unsupported input value"
srl $num,1,$num
sethi %hi(0xffff),$mask
ld [%i4+0],$n0 ! $n0 reassigned, remember?
or $mask,%lo(0xffff),$mask
ld [%i4+4],%o0
sllx %o0,32,%o0
or %o0,$n0,$n0 ! $n0=n0[1].n0[0]
sll $num,3,$num ! num*=8
add %sp,$bias,%o0 ! real top of stack
sll $num,2,%o1
add %o1,$num,%o1 ! %o1=num*5
sub %o0,%o1,%o0
and %o0,-2048,%o0 ! optimize TLB utilization
sub %o0,$bias,%sp ! alloca(5*num*8)
rd %asi,%o7 ! save %asi
add %sp,$bias+$frame+$locals,$tp
add $tp,$num,$ap_l
add $ap_l,$num,$ap_l ! [an]p_[lh] point at the vectors' ends !
add $ap_l,$num,$ap_h
add $ap_h,$num,$np_l
add $np_l,$num,$np_h
wr %g0,$ASI_FL16_P,%asi ! setup %asi for 16-bit FP loads
add $rp,$num,$rp ! readjust input pointers to point
add $ap,$num,$ap ! at the ends too...
add $bp,$num,$bp
add $np,$num,$np
stx %o7,[%sp+$bias+$frame+48] ! save %asi
sub %g0,$num,$i ! i=-num
sub %g0,$num,$j ! j=-num
add $ap,$j,%o3
add $bp,$i,%o4
ld [%o3+4],%g1 ! bp[0]
ld [%o3+0],%o0
ld [%o4+4],%g5 ! ap[0]
sllx %g1,32,%g1
ld [%o4+0],%o1
sllx %g5,32,%g5
or %g1,%o0,%o0
or %g5,%o1,%o1
add $np,$j,%o5
mulx %o1,%o0,%o0 ! ap[0]*bp[0]
mulx $n0,%o0,%o0 ! ap[0]*bp[0]*n0
stx %o0,[%sp+$bias+$frame+0]
ld [%o3+0],$alo_ ! load a[j] as pair of 32-bit words
fzeros $alo
ld [%o3+4],$ahi_
fzeros $ahi
ld [%o5+0],$nlo_ ! load n[j] as pair of 32-bit words
fzeros $nlo
ld [%o5+4],$nhi_
fzeros $nhi
! transfer b[i] to FPU as 4x16-bit values
ldda [%o4+2]%asi,$ba
fxtod $alo,$alo
ldda [%o4+0]%asi,$bb
fxtod $ahi,$ahi
ldda [%o4+6]%asi,$bc
fxtod $nlo,$nlo
ldda [%o4+4]%asi,$bd
fxtod $nhi,$nhi
! transfer ap[0]*b[0]*n0 to FPU as 4x16-bit values
ldda [%sp+$bias+$frame+6]%asi,$na
fxtod $ba,$ba
ldda [%sp+$bias+$frame+4]%asi,$nb
fxtod $bb,$bb
ldda [%sp+$bias+$frame+2]%asi,$nc
fxtod $bc,$bc
ldda [%sp+$bias+$frame+0]%asi,$nd
fxtod $bd,$bd
std $alo,[$ap_l+$j] ! save smashed ap[j] in double format
fxtod $na,$na
std $ahi,[$ap_h+$j]
fxtod $nb,$nb
std $nlo,[$np_l+$j] ! save smashed np[j] in double format
fxtod $nc,$nc
std $nhi,[$np_h+$j]
fxtod $nd,$nd
fmuld $alo,$ba,$aloa
fmuld $nlo,$na,$nloa
fmuld $alo,$bb,$alob
fmuld $nlo,$nb,$nlob
fmuld $alo,$bc,$aloc
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
fmuld $alo,$bd,$alod
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
fmuld $ahi,$ba,$ahia
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
fmuld $ahi,$bb,$ahib
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
fmuld $ahi,$bc,$ahic
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
fmuld $ahi,$bd,$ahid
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
faddd $ahic,$nhic,$dota ! $nhic
faddd $ahid,$nhid,$dotb ! $nhid
faddd $nloc,$nhia,$nloc
faddd $nlod,$nhib,$nlod
fdtox $nloa,$nloa
fdtox $nlob,$nlob
fdtox $nloc,$nloc
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
add $j,8,$j
std $nlob,[%sp+$bias+$frame+8]
add $ap,$j,%o4
std $nloc,[%sp+$bias+$frame+16]
add $np,$j,%o5
std $nlod,[%sp+$bias+$frame+24]
ld [%o4+0],$alo_ ! load a[j] as pair of 32-bit words
fzeros $alo
ld [%o4+4],$ahi_
fzeros $ahi
ld [%o5+0],$nlo_ ! load n[j] as pair of 32-bit words
fzeros $nlo
ld [%o5+4],$nhi_
fzeros $nhi
fxtod $alo,$alo
fxtod $ahi,$ahi
fxtod $nlo,$nlo
fxtod $nhi,$nhi
ldx [%sp+$bias+$frame+0],%o0
fmuld $alo,$ba,$aloa
ldx [%sp+$bias+$frame+8],%o1
fmuld $nlo,$na,$nloa
ldx [%sp+$bias+$frame+16],%o2
fmuld $alo,$bb,$alob
ldx [%sp+$bias+$frame+24],%o3
fmuld $nlo,$nb,$nlob
srlx %o0,16,%o7
std $alo,[$ap_l+$j] ! save smashed ap[j] in double format
fmuld $alo,$bc,$aloc
add %o7,%o1,%o1
std $ahi,[$ap_h+$j]
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
srlx %o1,16,%o7
std $nlo,[$np_l+$j] ! save smashed np[j] in double format
fmuld $alo,$bd,$alod
add %o7,%o2,%o2
std $nhi,[$np_h+$j]
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
srlx %o2,16,%o7
fmuld $ahi,$ba,$ahia
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
!and %o0,$mask,%o0
!and %o1,$mask,%o1
!and %o2,$mask,%o2
!sllx %o1,16,%o1
!sllx %o2,32,%o2
!sllx %o3,48,%o7
!or %o1,%o0,%o0
!or %o2,%o0,%o0
!or %o7,%o0,%o0 ! 64-bit result
srlx %o3,16,%g1 ! 34-bit carry
fmuld $ahi,$bb,$ahib
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
fmuld $ahi,$bc,$ahic
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
fmuld $ahi,$bd,$ahid
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
faddd $dota,$nloa,$nloa
faddd $dotb,$nlob,$nlob
faddd $ahic,$nhic,$dota ! $nhic
faddd $ahid,$nhid,$dotb ! $nhid
faddd $nloc,$nhia,$nloc
faddd $nlod,$nhib,$nlod
fdtox $nloa,$nloa
fdtox $nlob,$nlob
fdtox $nloc,$nloc
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
addcc $j,8,$j
std $nloc,[%sp+$bias+$frame+16]
bz,pn %icc,.L1stskip
std $nlod,[%sp+$bias+$frame+24]
.align 32 ! incidentally already aligned !
.L1st:
add $ap,$j,%o4
add $np,$j,%o5
ld [%o4+0],$alo_ ! load a[j] as pair of 32-bit words
fzeros $alo
ld [%o4+4],$ahi_
fzeros $ahi
ld [%o5+0],$nlo_ ! load n[j] as pair of 32-bit words
fzeros $nlo
ld [%o5+4],$nhi_
fzeros $nhi
fxtod $alo,$alo
fxtod $ahi,$ahi
fxtod $nlo,$nlo
fxtod $nhi,$nhi
ldx [%sp+$bias+$frame+0],%o0
fmuld $alo,$ba,$aloa
ldx [%sp+$bias+$frame+8],%o1
fmuld $nlo,$na,$nloa
ldx [%sp+$bias+$frame+16],%o2
fmuld $alo,$bb,$alob
ldx [%sp+$bias+$frame+24],%o3
fmuld $nlo,$nb,$nlob
srlx %o0,16,%o7
std $alo,[$ap_l+$j] ! save smashed ap[j] in double format
fmuld $alo,$bc,$aloc
add %o7,%o1,%o1
std $ahi,[$ap_h+$j]
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
srlx %o1,16,%o7
std $nlo,[$np_l+$j] ! save smashed np[j] in double format
fmuld $alo,$bd,$alod
add %o7,%o2,%o2
std $nhi,[$np_h+$j]
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
srlx %o2,16,%o7
fmuld $ahi,$ba,$ahia
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
and %o0,$mask,%o0
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
and %o1,$mask,%o1
and %o2,$mask,%o2
fmuld $ahi,$bb,$ahib
sllx %o1,16,%o1
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
sllx %o2,32,%o2
fmuld $ahi,$bc,$ahic
sllx %o3,48,%o7
or %o1,%o0,%o0
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
or %o2,%o0,%o0
fmuld $ahi,$bd,$ahid
or %o7,%o0,%o0 ! 64-bit result
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
addcc %g1,%o0,%o0
faddd $dota,$nloa,$nloa
srlx %o3,16,%g1 ! 34-bit carry
faddd $dotb,$nlob,$nlob
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]=
faddd $ahic,$nhic,$dota ! $nhic
faddd $ahid,$nhid,$dotb ! $nhid
faddd $nloc,$nhia,$nloc
faddd $nlod,$nhib,$nlod
fdtox $nloa,$nloa
fdtox $nlob,$nlob
fdtox $nloc,$nloc
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
std $nloc,[%sp+$bias+$frame+16]
std $nlod,[%sp+$bias+$frame+24]
addcc $j,8,$j
bnz,pt %icc,.L1st
add $tp,8,$tp
.L1stskip:
fdtox $dota,$dota
fdtox $dotb,$dotb
ldx [%sp+$bias+$frame+0],%o0
ldx [%sp+$bias+$frame+8],%o1
ldx [%sp+$bias+$frame+16],%o2
ldx [%sp+$bias+$frame+24],%o3
srlx %o0,16,%o7
std $dota,[%sp+$bias+$frame+32]
add %o7,%o1,%o1
std $dotb,[%sp+$bias+$frame+40]
srlx %o1,16,%o7
add %o7,%o2,%o2
srlx %o2,16,%o7
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
and %o0,$mask,%o0
and %o1,$mask,%o1
and %o2,$mask,%o2
sllx %o1,16,%o1
sllx %o2,32,%o2
sllx %o3,48,%o7
or %o1,%o0,%o0
or %o2,%o0,%o0
or %o7,%o0,%o0 ! 64-bit result
ldx [%sp+$bias+$frame+32],%o4
addcc %g1,%o0,%o0
ldx [%sp+$bias+$frame+40],%o5
srlx %o3,16,%g1 ! 34-bit carry
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]=
add $tp,8,$tp
srlx %o4,16,%o7
add %o7,%o5,%o5
and %o4,$mask,%o4
sllx %o5,16,%o7
or %o7,%o4,%o4
addcc %g1,%o4,%o4
srlx %o5,48,%g1
bcs,a %xcc,.+8
add %g1,1,%g1
mov %g1,$carry
stx %o4,[$tp] ! tp[num-1]=
ba .Louter
add $i,8,$i
.align 32
.Louter:
sub %g0,$num,$j ! j=-num
add %sp,$bias+$frame+$locals,$tp
add $ap,$j,%o3
add $bp,$i,%o4
ld [%o3+4],%g1 ! bp[i]
ld [%o3+0],%o0
ld [%o4+4],%g5 ! ap[0]
sllx %g1,32,%g1
ld [%o4+0],%o1
sllx %g5,32,%g5
or %g1,%o0,%o0
or %g5,%o1,%o1
ldx [$tp],%o2 ! tp[0]
mulx %o1,%o0,%o0
addcc %o2,%o0,%o0
mulx $n0,%o0,%o0 ! (ap[0]*bp[i]+t[0])*n0
stx %o0,[%sp+$bias+$frame+0]
! transfer b[i] to FPU as 4x16-bit values
ldda [%o4+2]%asi,$ba
ldda [%o4+0]%asi,$bb
ldda [%o4+6]%asi,$bc
ldda [%o4+4]%asi,$bd
! transfer (ap[0]*b[i]+t[0])*n0 to FPU as 4x16-bit values
ldda [%sp+$bias+$frame+6]%asi,$na
fxtod $ba,$ba
ldda [%sp+$bias+$frame+4]%asi,$nb
fxtod $bb,$bb
ldda [%sp+$bias+$frame+2]%asi,$nc
fxtod $bc,$bc
ldda [%sp+$bias+$frame+0]%asi,$nd
fxtod $bd,$bd
ldd [$ap_l+$j],$alo ! load a[j] in double format
fxtod $na,$na
ldd [$ap_h+$j],$ahi
fxtod $nb,$nb
ldd [$np_l+$j],$nlo ! load n[j] in double format
fxtod $nc,$nc
ldd [$np_h+$j],$nhi
fxtod $nd,$nd
fmuld $alo,$ba,$aloa
fmuld $nlo,$na,$nloa
fmuld $alo,$bb,$alob
fmuld $nlo,$nb,$nlob
fmuld $alo,$bc,$aloc
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
fmuld $alo,$bd,$alod
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
fmuld $ahi,$ba,$ahia
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
fmuld $ahi,$bb,$ahib
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
fmuld $ahi,$bc,$ahic
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
fmuld $ahi,$bd,$ahid
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
faddd $ahic,$nhic,$dota ! $nhic
faddd $ahid,$nhid,$dotb ! $nhid
faddd $nloc,$nhia,$nloc
faddd $nlod,$nhib,$nlod
fdtox $nloa,$nloa
fdtox $nlob,$nlob
fdtox $nloc,$nloc
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
std $nloc,[%sp+$bias+$frame+16]
add $j,8,$j
std $nlod,[%sp+$bias+$frame+24]
ldd [$ap_l+$j],$alo ! load a[j] in double format
ldd [$ap_h+$j],$ahi
ldd [$np_l+$j],$nlo ! load n[j] in double format
ldd [$np_h+$j],$nhi
fmuld $alo,$ba,$aloa
fmuld $nlo,$na,$nloa
fmuld $alo,$bb,$alob
fmuld $nlo,$nb,$nlob
fmuld $alo,$bc,$aloc
ldx [%sp+$bias+$frame+0],%o0
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
ldx [%sp+$bias+$frame+8],%o1
fmuld $alo,$bd,$alod
ldx [%sp+$bias+$frame+16],%o2
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
ldx [%sp+$bias+$frame+24],%o3
fmuld $ahi,$ba,$ahia
srlx %o0,16,%o7
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
add %o7,%o1,%o1
fmuld $ahi,$bb,$ahib
srlx %o1,16,%o7
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
add %o7,%o2,%o2
fmuld $ahi,$bc,$ahic
srlx %o2,16,%o7
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
! why?
and %o0,$mask,%o0
fmuld $ahi,$bd,$ahid
and %o1,$mask,%o1
and %o2,$mask,%o2
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
sllx %o1,16,%o1
faddd $dota,$nloa,$nloa
sllx %o2,32,%o2
faddd $dotb,$nlob,$nlob
sllx %o3,48,%o7
or %o1,%o0,%o0
faddd $ahic,$nhic,$dota ! $nhic
or %o2,%o0,%o0
faddd $ahid,$nhid,$dotb ! $nhid
or %o7,%o0,%o0 ! 64-bit result
ldx [$tp],%o7
faddd $nloc,$nhia,$nloc
addcc %o7,%o0,%o0
! end-of-why?
faddd $nlod,$nhib,$nlod
srlx %o3,16,%g1 ! 34-bit carry
fdtox $nloa,$nloa
bcs,a %xcc,.+8
add %g1,1,%g1
fdtox $nlob,$nlob
fdtox $nloc,$nloc
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
addcc $j,8,$j
std $nloc,[%sp+$bias+$frame+16]
bz,pn %icc,.Linnerskip
std $nlod,[%sp+$bias+$frame+24]
ba .Linner
nop
.align 32
.Linner:
ldd [$ap_l+$j],$alo ! load a[j] in double format
ldd [$ap_h+$j],$ahi
ldd [$np_l+$j],$nlo ! load n[j] in double format
ldd [$np_h+$j],$nhi
fmuld $alo,$ba,$aloa
fmuld $nlo,$na,$nloa
fmuld $alo,$bb,$alob
fmuld $nlo,$nb,$nlob
fmuld $alo,$bc,$aloc
ldx [%sp+$bias+$frame+0],%o0
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
ldx [%sp+$bias+$frame+8],%o1
fmuld $alo,$bd,$alod
ldx [%sp+$bias+$frame+16],%o2
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
ldx [%sp+$bias+$frame+24],%o3
fmuld $ahi,$ba,$ahia
srlx %o0,16,%o7
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
add %o7,%o1,%o1
fmuld $ahi,$bb,$ahib
srlx %o1,16,%o7
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
add %o7,%o2,%o2
fmuld $ahi,$bc,$ahic
srlx %o2,16,%o7
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
and %o0,$mask,%o0
fmuld $ahi,$bd,$ahid
and %o1,$mask,%o1
and %o2,$mask,%o2
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
sllx %o1,16,%o1
faddd $dota,$nloa,$nloa
sllx %o2,32,%o2
faddd $dotb,$nlob,$nlob
sllx %o3,48,%o7
or %o1,%o0,%o0
faddd $ahic,$nhic,$dota ! $nhic
or %o2,%o0,%o0
faddd $ahid,$nhid,$dotb ! $nhid
or %o7,%o0,%o0 ! 64-bit result
faddd $nloc,$nhia,$nloc
addcc %g1,%o0,%o0
ldx [$tp+8],%o7 ! tp[j]
faddd $nlod,$nhib,$nlod
srlx %o3,16,%g1 ! 34-bit carry
fdtox $nloa,$nloa
bcs,a %xcc,.+8
add %g1,1,%g1
fdtox $nlob,$nlob
addcc %o7,%o0,%o0
fdtox $nloc,$nloc
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
std $nloc,[%sp+$bias+$frame+16]
addcc $j,8,$j
std $nlod,[%sp+$bias+$frame+24]
bnz,pt %icc,.Linner
add $tp,8,$tp
.Linnerskip:
fdtox $dota,$dota
fdtox $dotb,$dotb
ldx [%sp+$bias+$frame+0],%o0
ldx [%sp+$bias+$frame+8],%o1
ldx [%sp+$bias+$frame+16],%o2
ldx [%sp+$bias+$frame+24],%o3
srlx %o0,16,%o7
std $dota,[%sp+$bias+$frame+32]
add %o7,%o1,%o1
std $dotb,[%sp+$bias+$frame+40]
srlx %o1,16,%o7
add %o7,%o2,%o2
srlx %o2,16,%o7
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
and %o0,$mask,%o0
and %o1,$mask,%o1
and %o2,$mask,%o2
sllx %o1,16,%o1
sllx %o2,32,%o2
sllx %o3,48,%o7
or %o1,%o0,%o0
or %o2,%o0,%o0
ldx [%sp+$bias+$frame+32],%o4
or %o7,%o0,%o0 ! 64-bit result
ldx [%sp+$bias+$frame+40],%o5
addcc %g1,%o0,%o0
ldx [$tp+8],%o7 ! tp[j]
srlx %o3,16,%g1 ! 34-bit carry
bcs,a %xcc,.+8
add %g1,1,%g1
addcc %o7,%o0,%o0
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]
add $tp,8,$tp
srlx %o4,16,%o7
add %o7,%o5,%o5
and %o4,$mask,%o4
sllx %o5,16,%o7
or %o7,%o4,%o4
addcc %g1,%o4,%o4
srlx %o5,48,%g1
bcs,a %xcc,.+8
add %g1,1,%g1
addcc $carry,%o4,%o4
stx %o4,[$tp] ! tp[num-1]
mov %g1,$carry
bcs,a %xcc,.+8
add $carry,1,$carry
addcc $i,8,$i
bnz %icc,.Louter
nop
add $tp,8,$tp ! adjust tp to point at the end
orn %g0,%g0,%g4
sub %g0,$num,%o7 ! n=-num
ba .Lsub
subcc %g0,%g0,%g0 ! clear %icc.c
.align 32
.Lsub:
ldx [$tp+%o7],%o0
add $np,%o7,%g1
ld [%g1+0],%o2
ld [%g1+4],%o3
srlx %o0,32,%o1
subccc %o0,%o2,%o2
add $rp,%o7,%g1
subccc %o1,%o3,%o3
st %o2,[%g1+0]
add %o7,8,%o7
brnz,pt %o7,.Lsub
st %o3,[%g1+4]
subc $carry,0,%g4
sub %g0,$num,%o7 ! n=-num
ba .Lcopy
nop
.align 32
.Lcopy:
ldx [$tp+%o7],%o0
add $rp,%o7,%g1
ld [%g1+0],%o2
ld [%g1+4],%o3
stx %g0,[$tp+%o7]
and %o0,%g4,%o0
srlx %o0,32,%o1
andn %o2,%g4,%o2
andn %o3,%g4,%o3
or %o2,%o0,%o0
or %o3,%o1,%o1
st %o0,[%g1+0]
add %o7,8,%o7
brnz,pt %o7,.Lcopy
st %o1,[%g1+4]
sub %g0,$num,%o7 ! n=-num
.Lzap:
stx %g0,[$ap_l+%o7]
stx %g0,[$ap_h+%o7]
stx %g0,[$np_l+%o7]
stx %g0,[$np_h+%o7]
add %o7,8,%o7
brnz,pt %o7,.Lzap
nop
ldx [%sp+$bias+$frame+48],%o7
wr %g0,%o7,%asi ! restore %asi
mov 1,%i0
.Lret:
ret
restore
.type $fname,#function
.size $fname,(.-$fname)
.asciz "Montgomery Multipltication for UltraSPARC, CRYPTOGAMS by <appro\@openssl.org>"
.align 32
___
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
# Below substitution makes it possible to compile without demanding
# VIS extentions on command line, e.g. -xarch=v9 vs. -xarch=v9a. I
# dare to do this, because VIS capability is detected at run-time now
# and this routine is not called on CPU not capable to execute it. Do
# note that fzeros is not the only VIS dependency! Another dependency
# is implicit and is just _a_ numerical value loaded to %asi register,
# which assembler can't recognize as VIS specific...
$code =~ s/fzeros\s+%f([0-9]+)/
sprintf(".word\t0x%x\t! fzeros %%f%d",0x81b00c20|($1<<25),$1)
/gem;
print $code;
# flush
close STDOUT;

View file

@ -0,0 +1,242 @@
#!/usr/bin/env perl
#
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# Wrapper around 'rep montmul', VIA-specific instruction accessing
# PadLock Montgomery Multiplier. The wrapper is designed as drop-in
# replacement for OpenSSL bn_mul_mont [first implemented in 0.9.9].
#
# Below are interleaved outputs from 'openssl speed rsa dsa' for 4
# different software configurations on 1.5GHz VIA Esther processor.
# Lines marked with "software integer" denote performance of hand-
# coded integer-only assembler found in OpenSSL 0.9.7. "Software SSE2"
# refers to hand-coded SSE2 Montgomery multiplication procedure found
# OpenSSL 0.9.9. "Hardware VIA SDK" refers to padlock_pmm routine from
# Padlock SDK 2.0.1 available for download from VIA, which naturally
# utilizes the magic 'repz montmul' instruction. And finally "hardware
# this" refers to *this* implementation which also uses 'repz montmul'
#
# sign verify sign/s verify/s
# rsa 512 bits 0.001720s 0.000140s 581.4 7149.7 software integer
# rsa 512 bits 0.000690s 0.000086s 1450.3 11606.0 software SSE2
# rsa 512 bits 0.006136s 0.000201s 163.0 4974.5 hardware VIA SDK
# rsa 512 bits 0.000712s 0.000050s 1404.9 19858.5 hardware this
#
# rsa 1024 bits 0.008518s 0.000413s 117.4 2420.8 software integer
# rsa 1024 bits 0.004275s 0.000277s 233.9 3609.7 software SSE2
# rsa 1024 bits 0.012136s 0.000260s 82.4 3844.5 hardware VIA SDK
# rsa 1024 bits 0.002522s 0.000116s 396.5 8650.9 hardware this
#
# rsa 2048 bits 0.050101s 0.001371s 20.0 729.6 software integer
# rsa 2048 bits 0.030273s 0.001008s 33.0 991.9 software SSE2
# rsa 2048 bits 0.030833s 0.000976s 32.4 1025.1 hardware VIA SDK
# rsa 2048 bits 0.011879s 0.000342s 84.2 2921.7 hardware this
#
# rsa 4096 bits 0.327097s 0.004859s 3.1 205.8 software integer
# rsa 4096 bits 0.229318s 0.003859s 4.4 259.2 software SSE2
# rsa 4096 bits 0.233953s 0.003274s 4.3 305.4 hardware VIA SDK
# rsa 4096 bits 0.070493s 0.001166s 14.2 857.6 hardware this
#
# dsa 512 bits 0.001342s 0.001651s 745.2 605.7 software integer
# dsa 512 bits 0.000844s 0.000987s 1185.3 1013.1 software SSE2
# dsa 512 bits 0.001902s 0.002247s 525.6 444.9 hardware VIA SDK
# dsa 512 bits 0.000458s 0.000524s 2182.2 1909.1 hardware this
#
# dsa 1024 bits 0.003964s 0.004926s 252.3 203.0 software integer
# dsa 1024 bits 0.002686s 0.003166s 372.3 315.8 software SSE2
# dsa 1024 bits 0.002397s 0.002823s 417.1 354.3 hardware VIA SDK
# dsa 1024 bits 0.000978s 0.001170s 1022.2 855.0 hardware this
#
# dsa 2048 bits 0.013280s 0.016518s 75.3 60.5 software integer
# dsa 2048 bits 0.009911s 0.011522s 100.9 86.8 software SSE2
# dsa 2048 bits 0.009542s 0.011763s 104.8 85.0 hardware VIA SDK
# dsa 2048 bits 0.002884s 0.003352s 346.8 298.3 hardware this
#
# To give you some other reference point here is output for 2.4GHz P4
# running hand-coded SSE2 bn_mul_mont found in 0.9.9, i.e. "software
# SSE2" in above terms.
#
# rsa 512 bits 0.000407s 0.000047s 2454.2 21137.0
# rsa 1024 bits 0.002426s 0.000141s 412.1 7100.0
# rsa 2048 bits 0.015046s 0.000491s 66.5 2034.9
# rsa 4096 bits 0.109770s 0.002379s 9.1 420.3
# dsa 512 bits 0.000438s 0.000525s 2281.1 1904.1
# dsa 1024 bits 0.001346s 0.001595s 742.7 627.0
# dsa 2048 bits 0.004745s 0.005582s 210.7 179.1
#
# Conclusions:
# - VIA SDK leaves a *lot* of room for improvement (which this
# implementation successfully fills:-);
# - 'rep montmul' gives up to >3x performance improvement depending on
# key length;
# - in terms of absolute performance it delivers approximately as much
# as modern out-of-order 32-bit cores [again, for longer keys].
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],"via-mont.pl");
# int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num);
$func="bn_mul_mont_padlock";
$pad=16*1; # amount of reserved bytes on top of every vector
# stack layout
$mZeroPrime=&DWP(0,"esp"); # these are specified by VIA
$A=&DWP(4,"esp");
$B=&DWP(8,"esp");
$T=&DWP(12,"esp");
$M=&DWP(16,"esp");
$scratch=&DWP(20,"esp");
$rp=&DWP(24,"esp"); # these are mine
$sp=&DWP(28,"esp");
# &DWP(32,"esp") # 32 byte scratch area
# &DWP(64+(4*$num+$pad)*0,"esp") # padded tp[num]
# &DWP(64+(4*$num+$pad)*1,"esp") # padded copy of ap[num]
# &DWP(64+(4*$num+$pad)*2,"esp") # padded copy of bp[num]
# &DWP(64+(4*$num+$pad)*3,"esp") # padded copy of np[num]
# Note that SDK suggests to unconditionally allocate 2K per vector. This
# has quite an impact on performance. It naturally depends on key length,
# but to give an example 1024 bit private RSA key operations suffer >30%
# penalty. I allocate only as much as actually required...
&function_begin($func);
&xor ("eax","eax");
&mov ("ecx",&wparam(5)); # num
# meet VIA's limitations for num [note that the specification
# expresses them in bits, while we work with amount of 32-bit words]
&test ("ecx",3);
&jnz (&label("leave")); # num % 4 != 0
&cmp ("ecx",8);
&jb (&label("leave")); # num < 8
&cmp ("ecx",1024);
&ja (&label("leave")); # num > 1024
&pushf ();
&cld ();
&mov ("edi",&wparam(0)); # rp
&mov ("eax",&wparam(1)); # ap
&mov ("ebx",&wparam(2)); # bp
&mov ("edx",&wparam(3)); # np
&mov ("esi",&wparam(4)); # n0
&mov ("esi",&DWP(0,"esi")); # *n0
&lea ("ecx",&DWP($pad,"","ecx",4)); # ecx becomes vector size in bytes
&lea ("ebp",&DWP(64,"","ecx",4)); # allocate 4 vectors + 64 bytes
&neg ("ebp");
&add ("ebp","esp");
&and ("ebp",-64); # align to cache-line
&xchg ("ebp","esp"); # alloca
&mov ($rp,"edi"); # save rp
&mov ($sp,"ebp"); # save esp
&mov ($mZeroPrime,"esi");
&lea ("esi",&DWP(64,"esp")); # tp
&mov ($T,"esi");
&lea ("edi",&DWP(32,"esp")); # scratch area
&mov ($scratch,"edi");
&mov ("esi","eax");
&lea ("ebp",&DWP(-$pad,"ecx"));
&shr ("ebp",2); # restore original num value in ebp
&xor ("eax","eax");
&mov ("ecx","ebp");
&lea ("ecx",&DWP((32+$pad)/4,"ecx"));# padded tp + scratch
&data_byte(0xf3,0xab); # rep stosl, bzero
&mov ("ecx","ebp");
&lea ("edi",&DWP(64+$pad,"esp","ecx",4));# pointer to ap copy
&mov ($A,"edi");
&data_byte(0xf3,0xa5); # rep movsl, memcpy
&mov ("ecx",$pad/4);
&data_byte(0xf3,0xab); # rep stosl, bzero pad
# edi points at the end of padded ap copy...
&mov ("ecx","ebp");
&mov ("esi","ebx");
&mov ($B,"edi");
&data_byte(0xf3,0xa5); # rep movsl, memcpy
&mov ("ecx",$pad/4);
&data_byte(0xf3,0xab); # rep stosl, bzero pad
# edi points at the end of padded bp copy...
&mov ("ecx","ebp");
&mov ("esi","edx");
&mov ($M,"edi");
&data_byte(0xf3,0xa5); # rep movsl, memcpy
&mov ("ecx",$pad/4);
&data_byte(0xf3,0xab); # rep stosl, bzero pad
# edi points at the end of padded np copy...
# let magic happen...
&mov ("ecx","ebp");
&mov ("esi","esp");
&shl ("ecx",5); # convert word counter to bit counter
&align (4);
&data_byte(0xf3,0x0f,0xa6,0xc0);# rep montmul
&mov ("ecx","ebp");
&lea ("esi",&DWP(64,"esp")); # tp
# edi still points at the end of padded np copy...
&neg ("ebp");
&lea ("ebp",&DWP(-$pad,"edi","ebp",4)); # so just "rewind"
&mov ("edi",$rp); # restore rp
&xor ("edx","edx"); # i=0 and clear CF
&set_label("sub",8);
&mov ("eax",&DWP(0,"esi","edx",4));
&sbb ("eax",&DWP(0,"ebp","edx",4));
&mov (&DWP(0,"edi","edx",4),"eax"); # rp[i]=tp[i]-np[i]
&lea ("edx",&DWP(1,"edx")); # i++
&loop (&label("sub")); # doesn't affect CF!
&mov ("eax",&DWP(0,"esi","edx",4)); # upmost overflow bit
&sbb ("eax",0);
&and ("esi","eax");
&not ("eax");
&mov ("ebp","edi");
&and ("ebp","eax");
&or ("esi","ebp"); # tp=carry?tp:rp
&mov ("ecx","edx"); # num
&xor ("edx","edx"); # i=0
&set_label("copy",8);
&mov ("eax",&DWP(0,"esi","edx",4));
&mov (&DWP(64,"esp","edx",4),"ecx"); # zap tp
&mov (&DWP(0,"edi","edx",4),"eax");
&lea ("edx",&DWP(1,"edx")); # i++
&loop (&label("copy"));
&mov ("ebp",$sp);
&xor ("eax","eax");
&mov ("ecx",64/4);
&mov ("edi","esp"); # zap frame including scratch area
&data_byte(0xf3,0xab); # rep stosl, bzero
# zap copies of ap, bp and np
&lea ("edi",&DWP(64+$pad,"esp","edx",4));# pointer to ap
&lea ("ecx",&DWP(3*$pad/4,"edx","edx",2));
&data_byte(0xf3,0xab); # rep stosl, bzero
&mov ("esp","ebp");
&inc ("eax"); # signal "done"
&popf ();
&set_label("leave");
&function_end($func);
&asciz("Padlock Montgomery Multiplication, CRYPTOGAMS by <appro\@openssl.org>");
&asm_finish();

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#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# October 2005
#
# This is a "teaser" code, as it can be improved in several ways...
# First of all non-SSE2 path should be implemented (yes, for now it
# performs Montgomery multiplication/convolution only on SSE2-capable
# CPUs such as P4, others fall down to original code). Then inner loop
# can be unrolled and modulo-scheduled to improve ILP and possibly
# moved to 128-bit XMM register bank (though it would require input
# rearrangement and/or increase bus bandwidth utilization). Dedicated
# squaring procedure should give further performance improvement...
# Yet, for being draft, the code improves rsa512 *sign* benchmark by
# 110%(!), rsa1024 one - by 70% and rsa4096 - by 20%:-)
# December 2006
#
# Modulo-scheduling SSE2 loops results in further 15-20% improvement.
# Integer-only code [being equipped with dedicated squaring procedure]
# gives ~40% on rsa512 sign benchmark...
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
&asm_init($ARGV[0],$0);
$sse2=0;
for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
&external_label("OPENSSL_ia32cap_P") if ($sse2);
&function_begin("bn_mul_mont");
$i="edx";
$j="ecx";
$ap="esi"; $tp="esi"; # overlapping variables!!!
$rp="edi"; $bp="edi"; # overlapping variables!!!
$np="ebp";
$num="ebx";
$_num=&DWP(4*0,"esp"); # stack top layout
$_rp=&DWP(4*1,"esp");
$_ap=&DWP(4*2,"esp");
$_bp=&DWP(4*3,"esp");
$_np=&DWP(4*4,"esp");
$_n0=&DWP(4*5,"esp"); $_n0q=&QWP(4*5,"esp");
$_sp=&DWP(4*6,"esp");
$_bpend=&DWP(4*7,"esp");
$frame=32; # size of above frame rounded up to 16n
&xor ("eax","eax");
&mov ("edi",&wparam(5)); # int num
&cmp ("edi",4);
&jl (&label("just_leave"));
&lea ("esi",&wparam(0)); # put aside pointer to argument block
&lea ("edx",&wparam(1)); # load ap
&mov ("ebp","esp"); # saved stack pointer!
&add ("edi",2); # extra two words on top of tp
&neg ("edi");
&lea ("esp",&DWP(-$frame,"esp","edi",4)); # alloca($frame+4*(num+2))
&neg ("edi");
# minimize cache contention by arraning 2K window between stack
# pointer and ap argument [np is also position sensitive vector,
# but it's assumed to be near ap, as it's allocated at ~same
# time].
&mov ("eax","esp");
&sub ("eax","edx");
&and ("eax",2047);
&sub ("esp","eax"); # this aligns sp and ap modulo 2048
&xor ("edx","esp");
&and ("edx",2048);
&xor ("edx",2048);
&sub ("esp","edx"); # this splits them apart modulo 4096
&and ("esp",-64); # align to cache line
################################# load argument block...
&mov ("eax",&DWP(0*4,"esi"));# BN_ULONG *rp
&mov ("ebx",&DWP(1*4,"esi"));# const BN_ULONG *ap
&mov ("ecx",&DWP(2*4,"esi"));# const BN_ULONG *bp
&mov ("edx",&DWP(3*4,"esi"));# const BN_ULONG *np
&mov ("esi",&DWP(4*4,"esi"));# const BN_ULONG *n0
#&mov ("edi",&DWP(5*4,"esi"));# int num
&mov ("esi",&DWP(0,"esi")); # pull n0[0]
&mov ($_rp,"eax"); # ... save a copy of argument block
&mov ($_ap,"ebx");
&mov ($_bp,"ecx");
&mov ($_np,"edx");
&mov ($_n0,"esi");
&lea ($num,&DWP(-3,"edi")); # num=num-1 to assist modulo-scheduling
#&mov ($_num,$num); # redundant as $num is not reused
&mov ($_sp,"ebp"); # saved stack pointer!
if($sse2) {
$acc0="mm0"; # mmx register bank layout
$acc1="mm1";
$car0="mm2";
$car1="mm3";
$mul0="mm4";
$mul1="mm5";
$temp="mm6";
$mask="mm7";
&picmeup("eax","OPENSSL_ia32cap_P");
&bt (&DWP(0,"eax"),26);
&jnc (&label("non_sse2"));
&mov ("eax",-1);
&movd ($mask,"eax"); # mask 32 lower bits
&mov ($ap,$_ap); # load input pointers
&mov ($bp,$_bp);
&mov ($np,$_np);
&xor ($i,$i); # i=0
&xor ($j,$j); # j=0
&movd ($mul0,&DWP(0,$bp)); # bp[0]
&movd ($mul1,&DWP(0,$ap)); # ap[0]
&movd ($car1,&DWP(0,$np)); # np[0]
&pmuludq($mul1,$mul0); # ap[0]*bp[0]
&movq ($car0,$mul1);
&movq ($acc0,$mul1); # I wish movd worked for
&pand ($acc0,$mask); # inter-register transfers
&pmuludq($mul1,$_n0q); # *=n0
&pmuludq($car1,$mul1); # "t[0]"*np[0]*n0
&paddq ($car1,$acc0);
&movd ($acc1,&DWP(4,$np)); # np[1]
&movd ($acc0,&DWP(4,$ap)); # ap[1]
&psrlq ($car0,32);
&psrlq ($car1,32);
&inc ($j); # j++
&set_label("1st",16);
&pmuludq($acc0,$mul0); # ap[j]*bp[0]
&pmuludq($acc1,$mul1); # np[j]*m1
&paddq ($car0,$acc0); # +=c0
&paddq ($car1,$acc1); # +=c1
&movq ($acc0,$car0);
&pand ($acc0,$mask);
&movd ($acc1,&DWP(4,$np,$j,4)); # np[j+1]
&paddq ($car1,$acc0); # +=ap[j]*bp[0];
&movd ($acc0,&DWP(4,$ap,$j,4)); # ap[j+1]
&psrlq ($car0,32);
&movd (&DWP($frame-4,"esp",$j,4),$car1); # tp[j-1]=
&psrlq ($car1,32);
&lea ($j,&DWP(1,$j));
&cmp ($j,$num);
&jl (&label("1st"));
&pmuludq($acc0,$mul0); # ap[num-1]*bp[0]
&pmuludq($acc1,$mul1); # np[num-1]*m1
&paddq ($car0,$acc0); # +=c0
&paddq ($car1,$acc1); # +=c1
&movq ($acc0,$car0);
&pand ($acc0,$mask);
&paddq ($car1,$acc0); # +=ap[num-1]*bp[0];
&movd (&DWP($frame-4,"esp",$j,4),$car1); # tp[num-2]=
&psrlq ($car0,32);
&psrlq ($car1,32);
&paddq ($car1,$car0);
&movq (&QWP($frame,"esp",$num,4),$car1); # tp[num].tp[num-1]
&inc ($i); # i++
&set_label("outer");
&xor ($j,$j); # j=0
&movd ($mul0,&DWP(0,$bp,$i,4)); # bp[i]
&movd ($mul1,&DWP(0,$ap)); # ap[0]
&movd ($temp,&DWP($frame,"esp")); # tp[0]
&movd ($car1,&DWP(0,$np)); # np[0]
&pmuludq($mul1,$mul0); # ap[0]*bp[i]
&paddq ($mul1,$temp); # +=tp[0]
&movq ($acc0,$mul1);
&movq ($car0,$mul1);
&pand ($acc0,$mask);
&pmuludq($mul1,$_n0q); # *=n0
&pmuludq($car1,$mul1);
&paddq ($car1,$acc0);
&movd ($temp,&DWP($frame+4,"esp")); # tp[1]
&movd ($acc1,&DWP(4,$np)); # np[1]
&movd ($acc0,&DWP(4,$ap)); # ap[1]
&psrlq ($car0,32);
&psrlq ($car1,32);
&paddq ($car0,$temp); # +=tp[1]
&inc ($j); # j++
&dec ($num);
&set_label("inner");
&pmuludq($acc0,$mul0); # ap[j]*bp[i]
&pmuludq($acc1,$mul1); # np[j]*m1
&paddq ($car0,$acc0); # +=c0
&paddq ($car1,$acc1); # +=c1
&movq ($acc0,$car0);
&movd ($temp,&DWP($frame+4,"esp",$j,4));# tp[j+1]
&pand ($acc0,$mask);
&movd ($acc1,&DWP(4,$np,$j,4)); # np[j+1]
&paddq ($car1,$acc0); # +=ap[j]*bp[i]+tp[j]
&movd ($acc0,&DWP(4,$ap,$j,4)); # ap[j+1]
&psrlq ($car0,32);
&movd (&DWP($frame-4,"esp",$j,4),$car1);# tp[j-1]=
&psrlq ($car1,32);
&paddq ($car0,$temp); # +=tp[j+1]
&dec ($num);
&lea ($j,&DWP(1,$j)); # j++
&jnz (&label("inner"));
&mov ($num,$j);
&pmuludq($acc0,$mul0); # ap[num-1]*bp[i]
&pmuludq($acc1,$mul1); # np[num-1]*m1
&paddq ($car0,$acc0); # +=c0
&paddq ($car1,$acc1); # +=c1
&movq ($acc0,$car0);
&pand ($acc0,$mask);
&paddq ($car1,$acc0); # +=ap[num-1]*bp[i]+tp[num-1]
&movd (&DWP($frame-4,"esp",$j,4),$car1); # tp[num-2]=
&psrlq ($car0,32);
&psrlq ($car1,32);
&movd ($temp,&DWP($frame+4,"esp",$num,4)); # += tp[num]
&paddq ($car1,$car0);
&paddq ($car1,$temp);
&movq (&QWP($frame,"esp",$num,4),$car1); # tp[num].tp[num-1]
&lea ($i,&DWP(1,$i)); # i++
&cmp ($i,$num);
&jle (&label("outer"));
&emms (); # done with mmx bank
&jmp (&label("common_tail"));
&set_label("non_sse2",16);
}
if (0) {
&mov ("esp",$_sp);
&xor ("eax","eax"); # signal "not fast enough [yet]"
&jmp (&label("just_leave"));
# While the below code provides competitive performance for
# all key lengthes on modern Intel cores, it's still more
# than 10% slower for 4096-bit key elsewhere:-( "Competitive"
# means compared to the original integer-only assembler.
# 512-bit RSA sign is better by ~40%, but that's about all
# one can say about all CPUs...
} else {
$inp="esi"; # integer path uses these registers differently
$word="edi";
$carry="ebp";
&mov ($inp,$_ap);
&lea ($carry,&DWP(1,$num));
&mov ($word,$_bp);
&xor ($j,$j); # j=0
&mov ("edx",$inp);
&and ($carry,1); # see if num is even
&sub ("edx",$word); # see if ap==bp
&lea ("eax",&DWP(4,$word,$num,4)); # &bp[num]
&or ($carry,"edx");
&mov ($word,&DWP(0,$word)); # bp[0]
&jz (&label("bn_sqr_mont"));
&mov ($_bpend,"eax");
&mov ("eax",&DWP(0,$inp));
&xor ("edx","edx");
&set_label("mull",16);
&mov ($carry,"edx");
&mul ($word); # ap[j]*bp[0]
&add ($carry,"eax");
&lea ($j,&DWP(1,$j));
&adc ("edx",0);
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j+1]
&cmp ($j,$num);
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
&jl (&label("mull"));
&mov ($carry,"edx");
&mul ($word); # ap[num-1]*bp[0]
&mov ($word,$_n0);
&add ("eax",$carry);
&mov ($inp,$_np);
&adc ("edx",0);
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
&mov (&DWP($frame,"esp",$num,4),"eax"); # tp[num-1]=
&xor ($j,$j);
&mov (&DWP($frame+4,"esp",$num,4),"edx"); # tp[num]=
&mov (&DWP($frame+8,"esp",$num,4),$j); # tp[num+1]=
&mov ("eax",&DWP(0,$inp)); # np[0]
&mul ($word); # np[0]*m
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
&mov ("eax",&DWP(4,$inp)); # np[1]
&adc ("edx",0);
&inc ($j);
&jmp (&label("2ndmadd"));
&set_label("1stmadd",16);
&mov ($carry,"edx");
&mul ($word); # ap[j]*bp[i]
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
&lea ($j,&DWP(1,$j));
&adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j+1]
&adc ("edx",0);
&cmp ($j,$num);
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
&jl (&label("1stmadd"));
&mov ($carry,"edx");
&mul ($word); # ap[num-1]*bp[i]
&add ("eax",&DWP($frame,"esp",$num,4)); # +=tp[num-1]
&mov ($word,$_n0);
&adc ("edx",0);
&mov ($inp,$_np);
&add ($carry,"eax");
&adc ("edx",0);
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
&xor ($j,$j);
&add ("edx",&DWP($frame+4,"esp",$num,4)); # carry+=tp[num]
&mov (&DWP($frame,"esp",$num,4),$carry); # tp[num-1]=
&adc ($j,0);
&mov ("eax",&DWP(0,$inp)); # np[0]
&mov (&DWP($frame+4,"esp",$num,4),"edx"); # tp[num]=
&mov (&DWP($frame+8,"esp",$num,4),$j); # tp[num+1]=
&mul ($word); # np[0]*m
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
&mov ("eax",&DWP(4,$inp)); # np[1]
&adc ("edx",0);
&mov ($j,1);
&set_label("2ndmadd",16);
&mov ($carry,"edx");
&mul ($word); # np[j]*m
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
&lea ($j,&DWP(1,$j));
&adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(0,$inp,$j,4)); # np[j+1]
&adc ("edx",0);
&cmp ($j,$num);
&mov (&DWP($frame-8,"esp",$j,4),$carry); # tp[j-1]=
&jl (&label("2ndmadd"));
&mov ($carry,"edx");
&mul ($word); # np[j]*m
&add ($carry,&DWP($frame,"esp",$num,4)); # +=tp[num-1]
&adc ("edx",0);
&add ($carry,"eax");
&adc ("edx",0);
&mov (&DWP($frame-4,"esp",$num,4),$carry); # tp[num-2]=
&xor ("eax","eax");
&mov ($j,$_bp); # &bp[i]
&add ("edx",&DWP($frame+4,"esp",$num,4)); # carry+=tp[num]
&adc ("eax",&DWP($frame+8,"esp",$num,4)); # +=tp[num+1]
&lea ($j,&DWP(4,$j));
&mov (&DWP($frame,"esp",$num,4),"edx"); # tp[num-1]=
&cmp ($j,$_bpend);
&mov (&DWP($frame+4,"esp",$num,4),"eax"); # tp[num]=
&je (&label("common_tail"));
&mov ($word,&DWP(0,$j)); # bp[i+1]
&mov ($inp,$_ap);
&mov ($_bp,$j); # &bp[++i]
&xor ($j,$j);
&xor ("edx","edx");
&mov ("eax",&DWP(0,$inp));
&jmp (&label("1stmadd"));
&set_label("bn_sqr_mont",16);
$sbit=$num;
&mov ($_num,$num);
&mov ($_bp,$j); # i=0
&mov ("eax",$word); # ap[0]
&mul ($word); # ap[0]*ap[0]
&mov (&DWP($frame,"esp"),"eax"); # tp[0]=
&mov ($sbit,"edx");
&shr ("edx",1);
&and ($sbit,1);
&inc ($j);
&set_label("sqr",16);
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j]
&mov ($carry,"edx");
&mul ($word); # ap[j]*ap[0]
&add ("eax",$carry);
&lea ($j,&DWP(1,$j));
&adc ("edx",0);
&lea ($carry,&DWP(0,$sbit,"eax",2));
&shr ("eax",31);
&cmp ($j,$_num);
&mov ($sbit,"eax");
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
&jl (&label("sqr"));
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[num-1]
&mov ($carry,"edx");
&mul ($word); # ap[num-1]*ap[0]
&add ("eax",$carry);
&mov ($word,$_n0);
&adc ("edx",0);
&mov ($inp,$_np);
&lea ($carry,&DWP(0,$sbit,"eax",2));
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
&shr ("eax",31);
&mov (&DWP($frame,"esp",$j,4),$carry); # tp[num-1]=
&lea ($carry,&DWP(0,"eax","edx",2));
&mov ("eax",&DWP(0,$inp)); # np[0]
&shr ("edx",31);
&mov (&DWP($frame+4,"esp",$j,4),$carry); # tp[num]=
&mov (&DWP($frame+8,"esp",$j,4),"edx"); # tp[num+1]=
&mul ($word); # np[0]*m
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
&mov ($num,$j);
&adc ("edx",0);
&mov ("eax",&DWP(4,$inp)); # np[1]
&mov ($j,1);
&set_label("3rdmadd",16);
&mov ($carry,"edx");
&mul ($word); # np[j]*m
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
&adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(4,$inp,$j,4)); # np[j+1]
&adc ("edx",0);
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j-1]=
&mov ($carry,"edx");
&mul ($word); # np[j+1]*m
&add ($carry,&DWP($frame+4,"esp",$j,4)); # +=tp[j+1]
&lea ($j,&DWP(2,$j));
&adc ("edx",0);
&add ($carry,"eax");
&mov ("eax",&DWP(0,$inp,$j,4)); # np[j+2]
&adc ("edx",0);
&cmp ($j,$num);
&mov (&DWP($frame-8,"esp",$j,4),$carry); # tp[j]=
&jl (&label("3rdmadd"));
&mov ($carry,"edx");
&mul ($word); # np[j]*m
&add ($carry,&DWP($frame,"esp",$num,4)); # +=tp[num-1]
&adc ("edx",0);
&add ($carry,"eax");
&adc ("edx",0);
&mov (&DWP($frame-4,"esp",$num,4),$carry); # tp[num-2]=
&mov ($j,$_bp); # i
&xor ("eax","eax");
&mov ($inp,$_ap);
&add ("edx",&DWP($frame+4,"esp",$num,4)); # carry+=tp[num]
&adc ("eax",&DWP($frame+8,"esp",$num,4)); # +=tp[num+1]
&mov (&DWP($frame,"esp",$num,4),"edx"); # tp[num-1]=
&cmp ($j,$num);
&mov (&DWP($frame+4,"esp",$num,4),"eax"); # tp[num]=
&je (&label("common_tail"));
&mov ($word,&DWP(4,$inp,$j,4)); # ap[i]
&lea ($j,&DWP(1,$j));
&mov ("eax",$word);
&mov ($_bp,$j); # ++i
&mul ($word); # ap[i]*ap[i]
&add ("eax",&DWP($frame,"esp",$j,4)); # +=tp[i]
&adc ("edx",0);
&mov (&DWP($frame,"esp",$j,4),"eax"); # tp[i]=
&xor ($carry,$carry);
&cmp ($j,$num);
&lea ($j,&DWP(1,$j));
&je (&label("sqrlast"));
&mov ($sbit,"edx"); # zaps $num
&shr ("edx",1);
&and ($sbit,1);
&set_label("sqradd",16);
&mov ("eax",&DWP(0,$inp,$j,4)); # ap[j]
&mov ($carry,"edx");
&mul ($word); # ap[j]*ap[i]
&add ("eax",$carry);
&lea ($carry,&DWP(0,"eax","eax"));
&adc ("edx",0);
&shr ("eax",31);
&add ($carry,&DWP($frame,"esp",$j,4)); # +=tp[j]
&lea ($j,&DWP(1,$j));
&adc ("eax",0);
&add ($carry,$sbit);
&adc ("eax",0);
&cmp ($j,$_num);
&mov (&DWP($frame-4,"esp",$j,4),$carry); # tp[j]=
&mov ($sbit,"eax");
&jle (&label("sqradd"));
&mov ($carry,"edx");
&lea ("edx",&DWP(0,$sbit,"edx",2));
&shr ($carry,31);
&set_label("sqrlast");
&mov ($word,$_n0);
&mov ($inp,$_np);
&imul ($word,&DWP($frame,"esp")); # n0*tp[0]
&add ("edx",&DWP($frame,"esp",$j,4)); # +=tp[num]
&mov ("eax",&DWP(0,$inp)); # np[0]
&adc ($carry,0);
&mov (&DWP($frame,"esp",$j,4),"edx"); # tp[num]=
&mov (&DWP($frame+4,"esp",$j,4),$carry); # tp[num+1]=
&mul ($word); # np[0]*m
&add ("eax",&DWP($frame,"esp")); # +=tp[0]
&lea ($num,&DWP(-1,$j));
&adc ("edx",0);
&mov ($j,1);
&mov ("eax",&DWP(4,$inp)); # np[1]
&jmp (&label("3rdmadd"));
}
&set_label("common_tail",16);
&mov ($np,$_np); # load modulus pointer
&mov ($rp,$_rp); # load result pointer
&lea ($tp,&DWP($frame,"esp")); # [$ap and $bp are zapped]
&mov ("eax",&DWP(0,$tp)); # tp[0]
&mov ($j,$num); # j=num-1
&xor ($i,$i); # i=0 and clear CF!
&set_label("sub",16);
&sbb ("eax",&DWP(0,$np,$i,4));
&mov (&DWP(0,$rp,$i,4),"eax"); # rp[i]=tp[i]-np[i]
&dec ($j); # doesn't affect CF!
&mov ("eax",&DWP(4,$tp,$i,4)); # tp[i+1]
&lea ($i,&DWP(1,$i)); # i++
&jge (&label("sub"));
&sbb ("eax",0); # handle upmost overflow bit
&and ($tp,"eax");
&not ("eax");
&mov ($np,$rp);
&and ($np,"eax");
&or ($tp,$np); # tp=carry?tp:rp
&set_label("copy",16); # copy or in-place refresh
&mov ("eax",&DWP(0,$tp,$num,4));
&mov (&DWP(0,$rp,$num,4),"eax"); # rp[i]=tp[i]
&mov (&DWP($frame,"esp",$num,4),$j); # zap temporary vector
&dec ($num);
&jge (&label("copy"));
&mov ("esp",$_sp); # pull saved stack pointer
&mov ("eax",1);
&set_label("just_leave");
&function_end("bn_mul_mont");
&asciz("Montgomery Multiplication for x86, CRYPTOGAMS by <appro\@openssl.org>");
&asm_finish();

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#!/usr/local/bin/perl
push(@INC,"perlasm","../../perlasm");
require "x86asm.pl";
require("x86/mul_add.pl");
require("x86/mul.pl");
require("x86/sqr.pl");
require("x86/div.pl");
require("x86/add.pl");
require("x86/sub.pl");
require("x86/comba.pl");
&asm_init($ARGV[0],$0);
&bn_mul_add_words("bn_mul_add_words");
&bn_mul_words("bn_mul_words");
&bn_sqr_words("bn_sqr_words");
&bn_div_words("bn_div_words");
&bn_add_words("bn_add_words");
&bn_sub_words("bn_sub_words");
&bn_mul_comba("bn_mul_comba8",8);
&bn_mul_comba("bn_mul_comba4",4);
&bn_sqr_comba("bn_sqr_comba8",8);
&bn_sqr_comba("bn_sqr_comba4",4);
&asm_finish();

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#!/usr/local/bin/perl
# x86 assember
sub bn_add_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$a="esi";
$b="edi";
$c="eax";
$r="ebx";
$tmp1="ecx";
$tmp2="edx";
$num="ebp";
&mov($r,&wparam(0)); # get r
&mov($a,&wparam(1)); # get a
&mov($b,&wparam(2)); # get b
&mov($num,&wparam(3)); # get num
&xor($c,$c); # clear carry
&and($num,0xfffffff8); # num / 8
&jz(&label("aw_finish"));
&set_label("aw_loop",0);
for ($i=0; $i<8; $i++)
{
&comment("Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
&add($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&add($tmp1,$tmp2);
&adc($c,0);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
}
&comment("");
&add($a,32);
&add($b,32);
&add($r,32);
&sub($num,8);
&jnz(&label("aw_loop"));
&set_label("aw_finish",0);
&mov($num,&wparam(3)); # get num
&and($num,7);
&jz(&label("aw_end"));
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
&add($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&add($tmp1,$tmp2);
&adc($c,0);
&dec($num) if ($i != 6);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *a
&jz(&label("aw_end")) if ($i != 6);
}
&set_label("aw_end",0);
# &mov("eax",$c); # $c is "eax"
&function_end($name);
}
1;

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#!/usr/local/bin/perl
# x86 assember
sub mul_add_c
{
local($a,$ai,$b,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
# pos == -1 if eax and edx are pre-loaded, 0 to load from next
# words, and 1 if load return value
&comment("mul a[$ai]*b[$bi]");
# "eax" and "edx" will always be pre-loaded.
# &mov("eax",&DWP($ai*4,$a,"",0)) ;
# &mov("edx",&DWP($bi*4,$b,"",0));
&mul("edx");
&add($c0,"eax");
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # laod next a
&mov("eax",&wparam(0)) if $pos > 0; # load r[]
###
&adc($c1,"edx");
&mov("edx",&DWP(($nb)*4,$b,"",0)) if $pos == 0; # laod next b
&mov("edx",&DWP(($nb)*4,$b,"",0)) if $pos == 1; # laod next b
###
&adc($c2,0);
# is pos > 1, it means it is the last loop
&mov(&DWP($i*4,"eax","",0),$c0) if $pos > 0; # save r[];
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # laod next a
}
sub sqr_add_c
{
local($r,$a,$ai,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
# pos == -1 if eax and edx are pre-loaded, 0 to load from next
# words, and 1 if load return value
&comment("sqr a[$ai]*a[$bi]");
# "eax" and "edx" will always be pre-loaded.
# &mov("eax",&DWP($ai*4,$a,"",0)) ;
# &mov("edx",&DWP($bi*4,$b,"",0));
if ($ai == $bi)
{ &mul("eax");}
else
{ &mul("edx");}
&add($c0,"eax");
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # load next a
###
&adc($c1,"edx");
&mov("edx",&DWP(($nb)*4,$a,"",0)) if ($pos == 1) && ($na != $nb);
###
&adc($c2,0);
# is pos > 1, it means it is the last loop
&mov(&DWP($i*4,$r,"",0),$c0) if $pos > 0; # save r[];
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # load next b
}
sub sqr_add_c2
{
local($r,$a,$ai,$bi,$c0,$c1,$c2,$pos,$i,$na,$nb)=@_;
# pos == -1 if eax and edx are pre-loaded, 0 to load from next
# words, and 1 if load return value
&comment("sqr a[$ai]*a[$bi]");
# "eax" and "edx" will always be pre-loaded.
# &mov("eax",&DWP($ai*4,$a,"",0)) ;
# &mov("edx",&DWP($bi*4,$a,"",0));
if ($ai == $bi)
{ &mul("eax");}
else
{ &mul("edx");}
&add("eax","eax");
###
&adc("edx","edx");
###
&adc($c2,0);
&add($c0,"eax");
&adc($c1,"edx");
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 0; # load next a
&mov("eax",&DWP(($na)*4,$a,"",0)) if $pos == 1; # load next b
&adc($c2,0);
&mov(&DWP($i*4,$r,"",0),$c0) if $pos > 0; # save r[];
&mov("edx",&DWP(($nb)*4,$a,"",0)) if ($pos <= 1) && ($na != $nb);
###
}
sub bn_mul_comba
{
local($name,$num)=@_;
local($a,$b,$c0,$c1,$c2);
local($i,$as,$ae,$bs,$be,$ai,$bi);
local($tot,$end);
&function_begin_B($name,"");
$c0="ebx";
$c1="ecx";
$c2="ebp";
$a="esi";
$b="edi";
$as=0;
$ae=0;
$bs=0;
$be=0;
$tot=$num+$num-1;
&push("esi");
&mov($a,&wparam(1));
&push("edi");
&mov($b,&wparam(2));
&push("ebp");
&push("ebx");
&xor($c0,$c0);
&mov("eax",&DWP(0,$a,"",0)); # load the first word
&xor($c1,$c1);
&mov("edx",&DWP(0,$b,"",0)); # load the first second
for ($i=0; $i<$tot; $i++)
{
$ai=$as;
$bi=$bs;
$end=$be+1;
&comment("################## Calculate word $i");
for ($j=$bs; $j<$end; $j++)
{
&xor($c2,$c2) if ($j == $bs);
if (($j+1) == $end)
{
$v=1;
$v=2 if (($i+1) == $tot);
}
else
{ $v=0; }
if (($j+1) != $end)
{
$na=($ai-1);
$nb=($bi+1);
}
else
{
$na=$as+($i < ($num-1));
$nb=$bs+($i >= ($num-1));
}
#printf STDERR "[$ai,$bi] -> [$na,$nb]\n";
&mul_add_c($a,$ai,$b,$bi,$c0,$c1,$c2,$v,$i,$na,$nb);
if ($v)
{
&comment("saved r[$i]");
# &mov("eax",&wparam(0));
# &mov(&DWP($i*4,"eax","",0),$c0);
($c0,$c1,$c2)=($c1,$c2,$c0);
}
$ai--;
$bi++;
}
$as++ if ($i < ($num-1));
$ae++ if ($i >= ($num-1));
$bs++ if ($i >= ($num-1));
$be++ if ($i < ($num-1));
}
&comment("save r[$i]");
# &mov("eax",&wparam(0));
&mov(&DWP($i*4,"eax","",0),$c0);
&pop("ebx");
&pop("ebp");
&pop("edi");
&pop("esi");
&ret();
&function_end_B($name);
}
sub bn_sqr_comba
{
local($name,$num)=@_;
local($r,$a,$c0,$c1,$c2)=@_;
local($i,$as,$ae,$bs,$be,$ai,$bi);
local($b,$tot,$end,$half);
&function_begin_B($name,"");
$c0="ebx";
$c1="ecx";
$c2="ebp";
$a="esi";
$r="edi";
&push("esi");
&push("edi");
&push("ebp");
&push("ebx");
&mov($r,&wparam(0));
&mov($a,&wparam(1));
&xor($c0,$c0);
&xor($c1,$c1);
&mov("eax",&DWP(0,$a,"",0)); # load the first word
$as=0;
$ae=0;
$bs=0;
$be=0;
$tot=$num+$num-1;
for ($i=0; $i<$tot; $i++)
{
$ai=$as;
$bi=$bs;
$end=$be+1;
&comment("############### Calculate word $i");
for ($j=$bs; $j<$end; $j++)
{
&xor($c2,$c2) if ($j == $bs);
if (($ai-1) < ($bi+1))
{
$v=1;
$v=2 if ($i+1) == $tot;
}
else
{ $v=0; }
if (!$v)
{
$na=$ai-1;
$nb=$bi+1;
}
else
{
$na=$as+($i < ($num-1));
$nb=$bs+($i >= ($num-1));
}
if ($ai == $bi)
{
&sqr_add_c($r,$a,$ai,$bi,
$c0,$c1,$c2,$v,$i,$na,$nb);
}
else
{
&sqr_add_c2($r,$a,$ai,$bi,
$c0,$c1,$c2,$v,$i,$na,$nb);
}
if ($v)
{
&comment("saved r[$i]");
#&mov(&DWP($i*4,$r,"",0),$c0);
($c0,$c1,$c2)=($c1,$c2,$c0);
last;
}
$ai--;
$bi++;
}
$as++ if ($i < ($num-1));
$ae++ if ($i >= ($num-1));
$bs++ if ($i >= ($num-1));
$be++ if ($i < ($num-1));
}
&mov(&DWP($i*4,$r,"",0),$c0);
&pop("ebx");
&pop("ebp");
&pop("edi");
&pop("esi");
&ret();
&function_end_B($name);
}
1;

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#!/usr/local/bin/perl
# x86 assember
sub bn_div_words
{
local($name)=@_;
&function_begin($name,"");
&mov("edx",&wparam(0)); #
&mov("eax",&wparam(1)); #
&mov("ebx",&wparam(2)); #
&div("ebx");
&function_end($name);
}
1;

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#!/usr/local/bin/perl
# x86 assember

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#!/usr/local/bin/perl
# x86 assember
sub bn_mul_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$Low="eax";
$High="edx";
$a="ebx";
$w="ecx";
$r="edi";
$c="esi";
$num="ebp";
&xor($c,$c); # clear carry
&mov($r,&wparam(0)); #
&mov($a,&wparam(1)); #
&mov($num,&wparam(2)); #
&mov($w,&wparam(3)); #
&and($num,0xfffffff8); # num / 8
&jz(&label("mw_finish"));
&set_label("mw_loop",0);
for ($i=0; $i<32; $i+=4)
{
&comment("Round $i");
&mov("eax",&DWP($i,$a,"",0)); # *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+=c
# XXX
&adc("edx",0); # H(t)+=carry
&mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
&mov($c,"edx"); # c= H(t);
}
&comment("");
&add($a,32);
&add($r,32);
&sub($num,8);
&jz(&label("mw_finish"));
&jmp(&label("mw_loop"));
&set_label("mw_finish",0);
&mov($num,&wparam(2)); # get num
&and($num,7);
&jnz(&label("mw_finish2"));
&jmp(&label("mw_end"));
&set_label("mw_finish2",1);
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov("eax",&DWP($i*4,$a,"",0));# *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+=c
# XXX
&adc("edx",0); # H(t)+=carry
&mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t);
&mov($c,"edx"); # c= H(t);
&dec($num) if ($i != 7-1);
&jz(&label("mw_end")) if ($i != 7-1);
}
&set_label("mw_end",0);
&mov("eax",$c);
&function_end($name);
}
1;

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#!/usr/local/bin/perl
# x86 assember
sub bn_mul_add_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$Low="eax";
$High="edx";
$a="ebx";
$w="ebp";
$r="edi";
$c="esi";
&xor($c,$c); # clear carry
&mov($r,&wparam(0)); #
&mov("ecx",&wparam(2)); #
&mov($a,&wparam(1)); #
&and("ecx",0xfffffff8); # num / 8
&mov($w,&wparam(3)); #
&push("ecx"); # Up the stack for a tmp variable
&jz(&label("maw_finish"));
&set_label("maw_loop",0);
&mov(&swtmp(0),"ecx"); #
for ($i=0; $i<32; $i+=4)
{
&comment("Round $i");
&mov("eax",&DWP($i,$a,"",0)); # *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+= *r
&mov($c,&DWP($i,$r,"",0)); # L(t)+= *r
&adc("edx",0); # H(t)+=carry
&add("eax",$c); # L(t)+=c
&adc("edx",0); # H(t)+=carry
&mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
&mov($c,"edx"); # c= H(t);
}
&comment("");
&mov("ecx",&swtmp(0)); #
&add($a,32);
&add($r,32);
&sub("ecx",8);
&jnz(&label("maw_loop"));
&set_label("maw_finish",0);
&mov("ecx",&wparam(2)); # get num
&and("ecx",7);
&jnz(&label("maw_finish2")); # helps branch prediction
&jmp(&label("maw_end"));
&set_label("maw_finish2",1);
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov("eax",&DWP($i*4,$a,"",0));# *a
&mul($w); # *a * w
&add("eax",$c); # L(t)+=c
&mov($c,&DWP($i*4,$r,"",0)); # L(t)+= *r
&adc("edx",0); # H(t)+=carry
&add("eax",$c);
&adc("edx",0); # H(t)+=carry
&dec("ecx") if ($i != 7-1);
&mov(&DWP($i*4,$r,"",0),"eax"); # *r= L(t);
&mov($c,"edx"); # c= H(t);
&jz(&label("maw_end")) if ($i != 7-1);
}
&set_label("maw_end",0);
&mov("eax",$c);
&pop("ecx"); # clear variable from
&function_end($name);
}
1;

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#!/usr/local/bin/perl
# x86 assember
sub bn_sqr_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$r="esi";
$a="edi";
$num="ebx";
&mov($r,&wparam(0)); #
&mov($a,&wparam(1)); #
&mov($num,&wparam(2)); #
&and($num,0xfffffff8); # num / 8
&jz(&label("sw_finish"));
&set_label("sw_loop",0);
for ($i=0; $i<32; $i+=4)
{
&comment("Round $i");
&mov("eax",&DWP($i,$a,"",0)); # *a
# XXX
&mul("eax"); # *a * *a
&mov(&DWP($i*2,$r,"",0),"eax"); #
&mov(&DWP($i*2+4,$r,"",0),"edx");#
}
&comment("");
&add($a,32);
&add($r,64);
&sub($num,8);
&jnz(&label("sw_loop"));
&set_label("sw_finish",0);
&mov($num,&wparam(2)); # get num
&and($num,7);
&jz(&label("sw_end"));
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov("eax",&DWP($i*4,$a,"",0)); # *a
# XXX
&mul("eax"); # *a * *a
&mov(&DWP($i*8,$r,"",0),"eax"); #
&dec($num) if ($i != 7-1);
&mov(&DWP($i*8+4,$r,"",0),"edx");
&jz(&label("sw_end")) if ($i != 7-1);
}
&set_label("sw_end",0);
&function_end($name);
}
1;

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#!/usr/local/bin/perl
# x86 assember
sub bn_sub_words
{
local($name)=@_;
&function_begin($name,"");
&comment("");
$a="esi";
$b="edi";
$c="eax";
$r="ebx";
$tmp1="ecx";
$tmp2="edx";
$num="ebp";
&mov($r,&wparam(0)); # get r
&mov($a,&wparam(1)); # get a
&mov($b,&wparam(2)); # get b
&mov($num,&wparam(3)); # get num
&xor($c,$c); # clear carry
&and($num,0xfffffff8); # num / 8
&jz(&label("aw_finish"));
&set_label("aw_loop",0);
for ($i=0; $i<8; $i++)
{
&comment("Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0)); # *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *r
}
&comment("");
&add($a,32);
&add($b,32);
&add($r,32);
&sub($num,8);
&jnz(&label("aw_loop"));
&set_label("aw_finish",0);
&mov($num,&wparam(3)); # get num
&and($num,7);
&jz(&label("aw_end"));
for ($i=0; $i<7; $i++)
{
&comment("Tail Round $i");
&mov($tmp1,&DWP($i*4,$a,"",0)); # *a
&mov($tmp2,&DWP($i*4,$b,"",0));# *b
&sub($tmp1,$c);
&mov($c,0);
&adc($c,$c);
&sub($tmp1,$tmp2);
&adc($c,0);
&dec($num) if ($i != 6);
&mov(&DWP($i*4,$r,"",0),$tmp1); # *a
&jz(&label("aw_end")) if ($i != 6);
}
&set_label("aw_end",0);
# &mov("eax",$c); # $c is "eax"
&function_end($name);
}
1;

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#include "../bn_lcl.h"
#if !(defined(__GNUC__) && __GNUC__>=2)
# include "../bn_asm.c" /* kind of dirty hack for Sun Studio */
#else
/*
* x86_64 BIGNUM accelerator version 0.1, December 2002.
*
* Implemented by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
* project.
*
* Rights for redistribution and usage in source and binary forms are
* granted according to the OpenSSL license. Warranty of any kind is
* disclaimed.
*
* Q. Version 0.1? It doesn't sound like Andy, he used to assign real
* versions, like 1.0...
* A. Well, that's because this code is basically a quick-n-dirty
* proof-of-concept hack. As you can see it's implemented with
* inline assembler, which means that you're bound to GCC and that
* there might be enough room for further improvement.
*
* Q. Why inline assembler?
* A. x86_64 features own ABI which I'm not familiar with. This is
* why I decided to let the compiler take care of subroutine
* prologue/epilogue as well as register allocation. For reference.
* Win64 implements different ABI for AMD64, different from Linux.
*
* Q. How much faster does it get?
* A. 'apps/openssl speed rsa dsa' output with no-asm:
*
* sign verify sign/s verify/s
* rsa 512 bits 0.0006s 0.0001s 1683.8 18456.2
* rsa 1024 bits 0.0028s 0.0002s 356.0 6407.0
* rsa 2048 bits 0.0172s 0.0005s 58.0 1957.8
* rsa 4096 bits 0.1155s 0.0018s 8.7 555.6
* sign verify sign/s verify/s
* dsa 512 bits 0.0005s 0.0006s 2100.8 1768.3
* dsa 1024 bits 0.0014s 0.0018s 692.3 559.2
* dsa 2048 bits 0.0049s 0.0061s 204.7 165.0
*
* 'apps/openssl speed rsa dsa' output with this module:
*
* sign verify sign/s verify/s
* rsa 512 bits 0.0004s 0.0000s 2767.1 33297.9
* rsa 1024 bits 0.0012s 0.0001s 867.4 14674.7
* rsa 2048 bits 0.0061s 0.0002s 164.0 5270.0
* rsa 4096 bits 0.0384s 0.0006s 26.1 1650.8
* sign verify sign/s verify/s
* dsa 512 bits 0.0002s 0.0003s 4442.2 3786.3
* dsa 1024 bits 0.0005s 0.0007s 1835.1 1497.4
* dsa 2048 bits 0.0016s 0.0020s 620.4 504.6
*
* For the reference. IA-32 assembler implementation performs
* very much like 64-bit code compiled with no-asm on the same
* machine.
*/
#ifdef _WIN64
#define BN_ULONG unsigned long long
#else
#define BN_ULONG unsigned long
#endif
#undef mul
#undef mul_add
#undef sqr
/*
* "m"(a), "+m"(r) is the way to favor DirectPath µ-code;
* "g"(0) let the compiler to decide where does it
* want to keep the value of zero;
*/
#define mul_add(r,a,word,carry) do { \
register BN_ULONG high,low; \
asm ("mulq %3" \
: "=a"(low),"=d"(high) \
: "a"(word),"m"(a) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(carry),"+d"(high)\
: "a"(low),"g"(0) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+m"(r),"+d"(high) \
: "r"(carry),"g"(0) \
: "cc"); \
carry=high; \
} while (0)
#define mul(r,a,word,carry) do { \
register BN_ULONG high,low; \
asm ("mulq %3" \
: "=a"(low),"=d"(high) \
: "a"(word),"g"(a) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(carry),"+d"(high)\
: "a"(low),"g"(0) \
: "cc"); \
(r)=carry, carry=high; \
} while (0)
#define sqr(r0,r1,a) \
asm ("mulq %2" \
: "=a"(r0),"=d"(r1) \
: "a"(a) \
: "cc");
BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w)
{
BN_ULONG c1=0;
if (num <= 0) return(c1);
while (num&~3)
{
mul_add(rp[0],ap[0],w,c1);
mul_add(rp[1],ap[1],w,c1);
mul_add(rp[2],ap[2],w,c1);
mul_add(rp[3],ap[3],w,c1);
ap+=4; rp+=4; num-=4;
}
if (num)
{
mul_add(rp[0],ap[0],w,c1); if (--num==0) return c1;
mul_add(rp[1],ap[1],w,c1); if (--num==0) return c1;
mul_add(rp[2],ap[2],w,c1); return c1;
}
return(c1);
}
BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w)
{
BN_ULONG c1=0;
if (num <= 0) return(c1);
while (num&~3)
{
mul(rp[0],ap[0],w,c1);
mul(rp[1],ap[1],w,c1);
mul(rp[2],ap[2],w,c1);
mul(rp[3],ap[3],w,c1);
ap+=4; rp+=4; num-=4;
}
if (num)
{
mul(rp[0],ap[0],w,c1); if (--num == 0) return c1;
mul(rp[1],ap[1],w,c1); if (--num == 0) return c1;
mul(rp[2],ap[2],w,c1);
}
return(c1);
}
void bn_sqr_words(BN_ULONG *r, const BN_ULONG *a, int n)
{
if (n <= 0) return;
while (n&~3)
{
sqr(r[0],r[1],a[0]);
sqr(r[2],r[3],a[1]);
sqr(r[4],r[5],a[2]);
sqr(r[6],r[7],a[3]);
a+=4; r+=8; n-=4;
}
if (n)
{
sqr(r[0],r[1],a[0]); if (--n == 0) return;
sqr(r[2],r[3],a[1]); if (--n == 0) return;
sqr(r[4],r[5],a[2]);
}
}
BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d)
{ BN_ULONG ret,waste;
asm ("divq %4"
: "=a"(ret),"=d"(waste)
: "a"(l),"d"(h),"g"(d)
: "cc");
return ret;
}
BN_ULONG bn_add_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int n)
{ BN_ULONG ret=0,i=0;
if (n <= 0) return 0;
asm (
" subq %2,%2 \n"
".p2align 4 \n"
"1: movq (%4,%2,8),%0 \n"
" adcq (%5,%2,8),%0 \n"
" movq %0,(%3,%2,8) \n"
" leaq 1(%2),%2 \n"
" loop 1b \n"
" sbbq %0,%0 \n"
: "=&a"(ret),"+c"(n),"=&r"(i)
: "r"(rp),"r"(ap),"r"(bp)
: "cc"
);
return ret&1;
}
#ifndef SIMICS
BN_ULONG bn_sub_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int n)
{ BN_ULONG ret=0,i=0;
if (n <= 0) return 0;
asm (
" subq %2,%2 \n"
".p2align 4 \n"
"1: movq (%4,%2,8),%0 \n"
" sbbq (%5,%2,8),%0 \n"
" movq %0,(%3,%2,8) \n"
" leaq 1(%2),%2 \n"
" loop 1b \n"
" sbbq %0,%0 \n"
: "=&a"(ret),"+c"(n),"=&r"(i)
: "r"(rp),"r"(ap),"r"(bp)
: "cc"
);
return ret&1;
}
#else
/* Simics 1.4<7 has buggy sbbq:-( */
#define BN_MASK2 0xffffffffffffffffL
BN_ULONG bn_sub_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n)
{
BN_ULONG t1,t2;
int c=0;
if (n <= 0) return((BN_ULONG)0);
for (;;)
{
t1=a[0]; t2=b[0];
r[0]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
if (--n <= 0) break;
t1=a[1]; t2=b[1];
r[1]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
if (--n <= 0) break;
t1=a[2]; t2=b[2];
r[2]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
if (--n <= 0) break;
t1=a[3]; t2=b[3];
r[3]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
if (--n <= 0) break;
a+=4;
b+=4;
r+=4;
}
return(c);
}
#endif
/* mul_add_c(a,b,c0,c1,c2) -- c+=a*b for three word number c=(c2,c1,c0) */
/* mul_add_c2(a,b,c0,c1,c2) -- c+=2*a*b for three word number c=(c2,c1,c0) */
/* sqr_add_c(a,i,c0,c1,c2) -- c+=a[i]^2 for three word number c=(c2,c1,c0) */
/* sqr_add_c2(a,i,c0,c1,c2) -- c+=2*a[i]*a[j] for three word number c=(c2,c1,c0) */
#if 0
/* original macros are kept for reference purposes */
#define mul_add_c(a,b,c0,c1,c2) { \
BN_ULONG ta=(a),tb=(b); \
t1 = ta * tb; \
t2 = BN_UMULT_HIGH(ta,tb); \
c0 += t1; t2 += (c0<t1)?1:0; \
c1 += t2; c2 += (c1<t2)?1:0; \
}
#define mul_add_c2(a,b,c0,c1,c2) { \
BN_ULONG ta=(a),tb=(b),t0; \
t1 = BN_UMULT_HIGH(ta,tb); \
t0 = ta * tb; \
t2 = t1+t1; c2 += (t2<t1)?1:0; \
t1 = t0+t0; t2 += (t1<t0)?1:0; \
c0 += t1; t2 += (c0<t1)?1:0; \
c1 += t2; c2 += (c1<t2)?1:0; \
}
#else
#define mul_add_c(a,b,c0,c1,c2) do { \
asm ("mulq %3" \
: "=a"(t1),"=d"(t2) \
: "a"(a),"m"(b) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(c0),"+d"(t2) \
: "a"(t1),"g"(0) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(c1),"+r"(c2) \
: "d"(t2),"g"(0) \
: "cc"); \
} while (0)
#define sqr_add_c(a,i,c0,c1,c2) do { \
asm ("mulq %2" \
: "=a"(t1),"=d"(t2) \
: "a"(a[i]) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(c0),"+d"(t2) \
: "a"(t1),"g"(0) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(c1),"+r"(c2) \
: "d"(t2),"g"(0) \
: "cc"); \
} while (0)
#define mul_add_c2(a,b,c0,c1,c2) do { \
asm ("mulq %3" \
: "=a"(t1),"=d"(t2) \
: "a"(a),"m"(b) \
: "cc"); \
asm ("addq %0,%0; adcq %2,%1" \
: "+d"(t2),"+r"(c2) \
: "g"(0) \
: "cc"); \
asm ("addq %0,%0; adcq %2,%1" \
: "+a"(t1),"+d"(t2) \
: "g"(0) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(c0),"+d"(t2) \
: "a"(t1),"g"(0) \
: "cc"); \
asm ("addq %2,%0; adcq %3,%1" \
: "+r"(c1),"+r"(c2) \
: "d"(t2),"g"(0) \
: "cc"); \
} while (0)
#endif
#define sqr_add_c2(a,i,j,c0,c1,c2) \
mul_add_c2((a)[i],(a)[j],c0,c1,c2)
void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
{
BN_ULONG t1,t2;
BN_ULONG c1,c2,c3;
c1=0;
c2=0;
c3=0;
mul_add_c(a[0],b[0],c1,c2,c3);
r[0]=c1;
c1=0;
mul_add_c(a[0],b[1],c2,c3,c1);
mul_add_c(a[1],b[0],c2,c3,c1);
r[1]=c2;
c2=0;
mul_add_c(a[2],b[0],c3,c1,c2);
mul_add_c(a[1],b[1],c3,c1,c2);
mul_add_c(a[0],b[2],c3,c1,c2);
r[2]=c3;
c3=0;
mul_add_c(a[0],b[3],c1,c2,c3);
mul_add_c(a[1],b[2],c1,c2,c3);
mul_add_c(a[2],b[1],c1,c2,c3);
mul_add_c(a[3],b[0],c1,c2,c3);
r[3]=c1;
c1=0;
mul_add_c(a[4],b[0],c2,c3,c1);
mul_add_c(a[3],b[1],c2,c3,c1);
mul_add_c(a[2],b[2],c2,c3,c1);
mul_add_c(a[1],b[3],c2,c3,c1);
mul_add_c(a[0],b[4],c2,c3,c1);
r[4]=c2;
c2=0;
mul_add_c(a[0],b[5],c3,c1,c2);
mul_add_c(a[1],b[4],c3,c1,c2);
mul_add_c(a[2],b[3],c3,c1,c2);
mul_add_c(a[3],b[2],c3,c1,c2);
mul_add_c(a[4],b[1],c3,c1,c2);
mul_add_c(a[5],b[0],c3,c1,c2);
r[5]=c3;
c3=0;
mul_add_c(a[6],b[0],c1,c2,c3);
mul_add_c(a[5],b[1],c1,c2,c3);
mul_add_c(a[4],b[2],c1,c2,c3);
mul_add_c(a[3],b[3],c1,c2,c3);
mul_add_c(a[2],b[4],c1,c2,c3);
mul_add_c(a[1],b[5],c1,c2,c3);
mul_add_c(a[0],b[6],c1,c2,c3);
r[6]=c1;
c1=0;
mul_add_c(a[0],b[7],c2,c3,c1);
mul_add_c(a[1],b[6],c2,c3,c1);
mul_add_c(a[2],b[5],c2,c3,c1);
mul_add_c(a[3],b[4],c2,c3,c1);
mul_add_c(a[4],b[3],c2,c3,c1);
mul_add_c(a[5],b[2],c2,c3,c1);
mul_add_c(a[6],b[1],c2,c3,c1);
mul_add_c(a[7],b[0],c2,c3,c1);
r[7]=c2;
c2=0;
mul_add_c(a[7],b[1],c3,c1,c2);
mul_add_c(a[6],b[2],c3,c1,c2);
mul_add_c(a[5],b[3],c3,c1,c2);
mul_add_c(a[4],b[4],c3,c1,c2);
mul_add_c(a[3],b[5],c3,c1,c2);
mul_add_c(a[2],b[6],c3,c1,c2);
mul_add_c(a[1],b[7],c3,c1,c2);
r[8]=c3;
c3=0;
mul_add_c(a[2],b[7],c1,c2,c3);
mul_add_c(a[3],b[6],c1,c2,c3);
mul_add_c(a[4],b[5],c1,c2,c3);
mul_add_c(a[5],b[4],c1,c2,c3);
mul_add_c(a[6],b[3],c1,c2,c3);
mul_add_c(a[7],b[2],c1,c2,c3);
r[9]=c1;
c1=0;
mul_add_c(a[7],b[3],c2,c3,c1);
mul_add_c(a[6],b[4],c2,c3,c1);
mul_add_c(a[5],b[5],c2,c3,c1);
mul_add_c(a[4],b[6],c2,c3,c1);
mul_add_c(a[3],b[7],c2,c3,c1);
r[10]=c2;
c2=0;
mul_add_c(a[4],b[7],c3,c1,c2);
mul_add_c(a[5],b[6],c3,c1,c2);
mul_add_c(a[6],b[5],c3,c1,c2);
mul_add_c(a[7],b[4],c3,c1,c2);
r[11]=c3;
c3=0;
mul_add_c(a[7],b[5],c1,c2,c3);
mul_add_c(a[6],b[6],c1,c2,c3);
mul_add_c(a[5],b[7],c1,c2,c3);
r[12]=c1;
c1=0;
mul_add_c(a[6],b[7],c2,c3,c1);
mul_add_c(a[7],b[6],c2,c3,c1);
r[13]=c2;
c2=0;
mul_add_c(a[7],b[7],c3,c1,c2);
r[14]=c3;
r[15]=c1;
}
void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
{
BN_ULONG t1,t2;
BN_ULONG c1,c2,c3;
c1=0;
c2=0;
c3=0;
mul_add_c(a[0],b[0],c1,c2,c3);
r[0]=c1;
c1=0;
mul_add_c(a[0],b[1],c2,c3,c1);
mul_add_c(a[1],b[0],c2,c3,c1);
r[1]=c2;
c2=0;
mul_add_c(a[2],b[0],c3,c1,c2);
mul_add_c(a[1],b[1],c3,c1,c2);
mul_add_c(a[0],b[2],c3,c1,c2);
r[2]=c3;
c3=0;
mul_add_c(a[0],b[3],c1,c2,c3);
mul_add_c(a[1],b[2],c1,c2,c3);
mul_add_c(a[2],b[1],c1,c2,c3);
mul_add_c(a[3],b[0],c1,c2,c3);
r[3]=c1;
c1=0;
mul_add_c(a[3],b[1],c2,c3,c1);
mul_add_c(a[2],b[2],c2,c3,c1);
mul_add_c(a[1],b[3],c2,c3,c1);
r[4]=c2;
c2=0;
mul_add_c(a[2],b[3],c3,c1,c2);
mul_add_c(a[3],b[2],c3,c1,c2);
r[5]=c3;
c3=0;
mul_add_c(a[3],b[3],c1,c2,c3);
r[6]=c1;
r[7]=c2;
}
void bn_sqr_comba8(BN_ULONG *r, const BN_ULONG *a)
{
BN_ULONG t1,t2;
BN_ULONG c1,c2,c3;
c1=0;
c2=0;
c3=0;
sqr_add_c(a,0,c1,c2,c3);
r[0]=c1;
c1=0;
sqr_add_c2(a,1,0,c2,c3,c1);
r[1]=c2;
c2=0;
sqr_add_c(a,1,c3,c1,c2);
sqr_add_c2(a,2,0,c3,c1,c2);
r[2]=c3;
c3=0;
sqr_add_c2(a,3,0,c1,c2,c3);
sqr_add_c2(a,2,1,c1,c2,c3);
r[3]=c1;
c1=0;
sqr_add_c(a,2,c2,c3,c1);
sqr_add_c2(a,3,1,c2,c3,c1);
sqr_add_c2(a,4,0,c2,c3,c1);
r[4]=c2;
c2=0;
sqr_add_c2(a,5,0,c3,c1,c2);
sqr_add_c2(a,4,1,c3,c1,c2);
sqr_add_c2(a,3,2,c3,c1,c2);
r[5]=c3;
c3=0;
sqr_add_c(a,3,c1,c2,c3);
sqr_add_c2(a,4,2,c1,c2,c3);
sqr_add_c2(a,5,1,c1,c2,c3);
sqr_add_c2(a,6,0,c1,c2,c3);
r[6]=c1;
c1=0;
sqr_add_c2(a,7,0,c2,c3,c1);
sqr_add_c2(a,6,1,c2,c3,c1);
sqr_add_c2(a,5,2,c2,c3,c1);
sqr_add_c2(a,4,3,c2,c3,c1);
r[7]=c2;
c2=0;
sqr_add_c(a,4,c3,c1,c2);
sqr_add_c2(a,5,3,c3,c1,c2);
sqr_add_c2(a,6,2,c3,c1,c2);
sqr_add_c2(a,7,1,c3,c1,c2);
r[8]=c3;
c3=0;
sqr_add_c2(a,7,2,c1,c2,c3);
sqr_add_c2(a,6,3,c1,c2,c3);
sqr_add_c2(a,5,4,c1,c2,c3);
r[9]=c1;
c1=0;
sqr_add_c(a,5,c2,c3,c1);
sqr_add_c2(a,6,4,c2,c3,c1);
sqr_add_c2(a,7,3,c2,c3,c1);
r[10]=c2;
c2=0;
sqr_add_c2(a,7,4,c3,c1,c2);
sqr_add_c2(a,6,5,c3,c1,c2);
r[11]=c3;
c3=0;
sqr_add_c(a,6,c1,c2,c3);
sqr_add_c2(a,7,5,c1,c2,c3);
r[12]=c1;
c1=0;
sqr_add_c2(a,7,6,c2,c3,c1);
r[13]=c2;
c2=0;
sqr_add_c(a,7,c3,c1,c2);
r[14]=c3;
r[15]=c1;
}
void bn_sqr_comba4(BN_ULONG *r, const BN_ULONG *a)
{
BN_ULONG t1,t2;
BN_ULONG c1,c2,c3;
c1=0;
c2=0;
c3=0;
sqr_add_c(a,0,c1,c2,c3);
r[0]=c1;
c1=0;
sqr_add_c2(a,1,0,c2,c3,c1);
r[1]=c2;
c2=0;
sqr_add_c(a,1,c3,c1,c2);
sqr_add_c2(a,2,0,c3,c1,c2);
r[2]=c3;
c3=0;
sqr_add_c2(a,3,0,c1,c2,c3);
sqr_add_c2(a,2,1,c1,c2,c3);
r[3]=c1;
c1=0;
sqr_add_c(a,2,c2,c3,c1);
sqr_add_c2(a,3,1,c2,c3,c1);
r[4]=c2;
c2=0;
sqr_add_c2(a,3,2,c3,c1,c2);
r[5]=c3;
c3=0;
sqr_add_c(a,3,c1,c2,c3);
r[6]=c1;
r[7]=c2;
}
#endif

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@ -0,0 +1,330 @@
#!/usr/bin/env perl
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# October 2005.
#
# Montgomery multiplication routine for x86_64. While it gives modest
# 9% improvement of rsa4096 sign on Opteron, rsa512 sign runs more
# than twice, >2x, as fast. Most common rsa1024 sign is improved by
# respectful 50%. It remains to be seen if loop unrolling and
# dedicated squaring routine can provide further improvement...
$flavour = shift;
$output = shift;
if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";
open STDOUT,"| $^X $xlate $flavour $output";
# int bn_mul_mont(
$rp="%rdi"; # BN_ULONG *rp,
$ap="%rsi"; # const BN_ULONG *ap,
$bp="%rdx"; # const BN_ULONG *bp,
$np="%rcx"; # const BN_ULONG *np,
$n0="%r8"; # const BN_ULONG *n0,
$num="%r9"; # int num);
$lo0="%r10";
$hi0="%r11";
$bp="%r12"; # reassign $bp
$hi1="%r13";
$i="%r14";
$j="%r15";
$m0="%rbx";
$m1="%rbp";
$code=<<___;
.text
.globl bn_mul_mont
.type bn_mul_mont,\@function,6
.align 16
bn_mul_mont:
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
mov ${num}d,${num}d
lea 2($num),%r10
mov %rsp,%r11
neg %r10
lea (%rsp,%r10,8),%rsp # tp=alloca(8*(num+2))
and \$-1024,%rsp # minimize TLB usage
mov %r11,8(%rsp,$num,8) # tp[num+1]=%rsp
.Lprologue:
mov %rdx,$bp # $bp reassigned, remember?
mov ($n0),$n0 # pull n0[0] value
xor $i,$i # i=0
xor $j,$j # j=0
mov ($bp),$m0 # m0=bp[0]
mov ($ap),%rax
mulq $m0 # ap[0]*bp[0]
mov %rax,$lo0
mov %rdx,$hi0
imulq $n0,%rax # "tp[0]"*n0
mov %rax,$m1
mulq ($np) # np[0]*m1
add $lo0,%rax # discarded
adc \$0,%rdx
mov %rdx,$hi1
lea 1($j),$j # j++
.L1st:
mov ($ap,$j,8),%rax
mulq $m0 # ap[j]*bp[0]
add $hi0,%rax
adc \$0,%rdx
mov %rax,$lo0
mov ($np,$j,8),%rax
mov %rdx,$hi0
mulq $m1 # np[j]*m1
add $hi1,%rax
lea 1($j),$j # j++
adc \$0,%rdx
add $lo0,%rax # np[j]*m1+ap[j]*bp[0]
adc \$0,%rdx
mov %rax,-16(%rsp,$j,8) # tp[j-1]
cmp $num,$j
mov %rdx,$hi1
jl .L1st
xor %rdx,%rdx
add $hi0,$hi1
adc \$0,%rdx
mov $hi1,-8(%rsp,$num,8)
mov %rdx,(%rsp,$num,8) # store upmost overflow bit
lea 1($i),$i # i++
.align 4
.Louter:
xor $j,$j # j=0
mov ($bp,$i,8),$m0 # m0=bp[i]
mov ($ap),%rax # ap[0]
mulq $m0 # ap[0]*bp[i]
add (%rsp),%rax # ap[0]*bp[i]+tp[0]
adc \$0,%rdx
mov %rax,$lo0
mov %rdx,$hi0
imulq $n0,%rax # tp[0]*n0
mov %rax,$m1
mulq ($np,$j,8) # np[0]*m1
add $lo0,%rax # discarded
mov 8(%rsp),$lo0 # tp[1]
adc \$0,%rdx
mov %rdx,$hi1
lea 1($j),$j # j++
.align 4
.Linner:
mov ($ap,$j,8),%rax
mulq $m0 # ap[j]*bp[i]
add $hi0,%rax
adc \$0,%rdx
add %rax,$lo0 # ap[j]*bp[i]+tp[j]
mov ($np,$j,8),%rax
adc \$0,%rdx
mov %rdx,$hi0
mulq $m1 # np[j]*m1
add $hi1,%rax
lea 1($j),$j # j++
adc \$0,%rdx
add $lo0,%rax # np[j]*m1+ap[j]*bp[i]+tp[j]
adc \$0,%rdx
mov (%rsp,$j,8),$lo0
cmp $num,$j
mov %rax,-16(%rsp,$j,8) # tp[j-1]
mov %rdx,$hi1
jl .Linner
xor %rdx,%rdx
add $hi0,$hi1
adc \$0,%rdx
add $lo0,$hi1 # pull upmost overflow bit
adc \$0,%rdx
mov $hi1,-8(%rsp,$num,8)
mov %rdx,(%rsp,$num,8) # store upmost overflow bit
lea 1($i),$i # i++
cmp $num,$i
jl .Louter
lea (%rsp),$ap # borrow ap for tp
lea -1($num),$j # j=num-1
mov ($ap),%rax # tp[0]
xor $i,$i # i=0 and clear CF!
jmp .Lsub
.align 16
.Lsub: sbb ($np,$i,8),%rax
mov %rax,($rp,$i,8) # rp[i]=tp[i]-np[i]
dec $j # doesn't affect CF!
mov 8($ap,$i,8),%rax # tp[i+1]
lea 1($i),$i # i++
jge .Lsub
sbb \$0,%rax # handle upmost overflow bit
and %rax,$ap
not %rax
mov $rp,$np
and %rax,$np
lea -1($num),$j
or $np,$ap # ap=borrow?tp:rp
.align 16
.Lcopy: # copy or in-place refresh
mov ($ap,$j,8),%rax
mov %rax,($rp,$j,8) # rp[i]=tp[i]
mov $i,(%rsp,$j,8) # zap temporary vector
dec $j
jge .Lcopy
mov 8(%rsp,$num,8),%rsi # restore %rsp
mov \$1,%rax
mov (%rsi),%r15
mov 8(%rsi),%r14
mov 16(%rsi),%r13
mov 24(%rsi),%r12
mov 32(%rsi),%rbp
mov 40(%rsi),%rbx
lea 48(%rsi),%rsp
.Lepilogue:
ret
.size bn_mul_mont,.-bn_mul_mont
.asciz "Montgomery Multiplication for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
.align 16
___
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
if ($win64) {
$rec="%rcx";
$frame="%rdx";
$context="%r8";
$disp="%r9";
$code.=<<___;
.extern __imp_RtlVirtualUnwind
.type se_handler,\@abi-omnipotent
.align 16
se_handler:
push %rsi
push %rdi
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
pushfq
sub \$64,%rsp
mov 120($context),%rax # pull context->Rax
mov 248($context),%rbx # pull context->Rip
lea .Lprologue(%rip),%r10
cmp %r10,%rbx # context->Rip<.Lprologue
jb .Lin_prologue
mov 152($context),%rax # pull context->Rsp
lea .Lepilogue(%rip),%r10
cmp %r10,%rbx # context->Rip>=.Lepilogue
jae .Lin_prologue
mov 192($context),%r10 # pull $num
mov 8(%rax,%r10,8),%rax # pull saved stack pointer
lea 48(%rax),%rax
mov -8(%rax),%rbx
mov -16(%rax),%rbp
mov -24(%rax),%r12
mov -32(%rax),%r13
mov -40(%rax),%r14
mov -48(%rax),%r15
mov %rbx,144($context) # restore context->Rbx
mov %rbp,160($context) # restore context->Rbp
mov %r12,216($context) # restore context->R12
mov %r13,224($context) # restore context->R13
mov %r14,232($context) # restore context->R14
mov %r15,240($context) # restore context->R15
.Lin_prologue:
mov 8(%rax),%rdi
mov 16(%rax),%rsi
mov %rax,152($context) # restore context->Rsp
mov %rsi,168($context) # restore context->Rsi
mov %rdi,176($context) # restore context->Rdi
mov 40($disp),%rdi # disp->ContextRecord
mov $context,%rsi # context
mov \$154,%ecx # sizeof(CONTEXT)
.long 0xa548f3fc # cld; rep movsq
mov $disp,%rsi
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
mov 8(%rsi),%rdx # arg2, disp->ImageBase
mov 0(%rsi),%r8 # arg3, disp->ControlPc
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
mov 40(%rsi),%r10 # disp->ContextRecord
lea 56(%rsi),%r11 # &disp->HandlerData
lea 24(%rsi),%r12 # &disp->EstablisherFrame
mov %r10,32(%rsp) # arg5
mov %r11,40(%rsp) # arg6
mov %r12,48(%rsp) # arg7
mov %rcx,56(%rsp) # arg8, (NULL)
call *__imp_RtlVirtualUnwind(%rip)
mov \$1,%eax # ExceptionContinueSearch
add \$64,%rsp
popfq
pop %r15
pop %r14
pop %r13
pop %r12
pop %rbp
pop %rbx
pop %rdi
pop %rsi
ret
.size se_handler,.-se_handler
.section .pdata
.align 4
.rva .LSEH_begin_bn_mul_mont
.rva .LSEH_end_bn_mul_mont
.rva .LSEH_info_bn_mul_mont
.section .xdata
.align 8
.LSEH_info_bn_mul_mont:
.byte 9,0,0,0
.rva se_handler
___
}
print $code;
close STDOUT;

View file

@ -0,0 +1,858 @@
/* crypto/bn/bn.h */
/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* Portions of the attached software ("Contribution") are developed by
* SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
*
* The Contribution is licensed pursuant to the Eric Young open source
* license provided above.
*
* The binary polynomial arithmetic software is originally written by
* Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
*
*/
#ifndef HEADER_BN_H
#define HEADER_BN_H
#include <openssl/e_os2.h>
#ifndef OPENSSL_NO_FP_API
#include <stdio.h> /* FILE */
#endif
#include <openssl/ossl_typ.h>
#include <openssl/crypto.h>
#ifdef __cplusplus
extern "C" {
#endif
/* These preprocessor symbols control various aspects of the bignum headers and
* library code. They're not defined by any "normal" configuration, as they are
* intended for development and testing purposes. NB: defining all three can be
* useful for debugging application code as well as openssl itself.
*
* BN_DEBUG - turn on various debugging alterations to the bignum code
* BN_DEBUG_RAND - uses random poisoning of unused words to trip up
* mismanagement of bignum internals. You must also define BN_DEBUG.
*/
/* #define BN_DEBUG */
/* #define BN_DEBUG_RAND */
#ifndef OPENSSL_SMALL_FOOTPRINT
#define BN_MUL_COMBA
#define BN_SQR_COMBA
#define BN_RECURSION
#endif
/* This next option uses the C libraries (2 word)/(1 word) function.
* If it is not defined, I use my C version (which is slower).
* The reason for this flag is that when the particular C compiler
* library routine is used, and the library is linked with a different
* compiler, the library is missing. This mostly happens when the
* library is built with gcc and then linked using normal cc. This would
* be a common occurrence because gcc normally produces code that is
* 2 times faster than system compilers for the big number stuff.
* For machines with only one compiler (or shared libraries), this should
* be on. Again this in only really a problem on machines
* using "long long's", are 32bit, and are not using my assembler code. */
#if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || \
defined(OPENSSL_SYS_WIN32) || defined(linux)
# ifndef BN_DIV2W
# define BN_DIV2W
# endif
#endif
/* assuming long is 64bit - this is the DEC Alpha
* unsigned long long is only 64 bits :-(, don't define
* BN_LLONG for the DEC Alpha */
#ifdef SIXTY_FOUR_BIT_LONG
#define BN_ULLONG unsigned long long
#define BN_ULONG unsigned long
#define BN_LONG long
#define BN_BITS 128
#define BN_BYTES 8
#define BN_BITS2 64
#define BN_BITS4 32
#define BN_MASK (0xffffffffffffffffffffffffffffffffLL)
#define BN_MASK2 (0xffffffffffffffffL)
#define BN_MASK2l (0xffffffffL)
#define BN_MASK2h (0xffffffff00000000L)
#define BN_MASK2h1 (0xffffffff80000000L)
#define BN_TBIT (0x8000000000000000L)
#define BN_DEC_CONV (10000000000000000000UL)
#define BN_DEC_FMT1 "%lu"
#define BN_DEC_FMT2 "%019lu"
#define BN_DEC_NUM 19
#define BN_HEX_FMT1 "%lX"
#define BN_HEX_FMT2 "%016lX"
#endif
/* This is where the long long data type is 64 bits, but long is 32.
* For machines where there are 64bit registers, this is the mode to use.
* IRIX, on R4000 and above should use this mode, along with the relevant
* assembler code :-). Do NOT define BN_LLONG.
*/
#ifdef SIXTY_FOUR_BIT
#undef BN_LLONG
#undef BN_ULLONG
#define BN_ULONG unsigned long long
#define BN_LONG long long
#define BN_BITS 128
#define BN_BYTES 8
#define BN_BITS2 64
#define BN_BITS4 32
#define BN_MASK2 (0xffffffffffffffffLL)
#define BN_MASK2l (0xffffffffL)
#define BN_MASK2h (0xffffffff00000000LL)
#define BN_MASK2h1 (0xffffffff80000000LL)
#define BN_TBIT (0x8000000000000000LL)
#define BN_DEC_CONV (10000000000000000000ULL)
#define BN_DEC_FMT1 "%llu"
#define BN_DEC_FMT2 "%019llu"
#define BN_DEC_NUM 19
#define BN_HEX_FMT1 "%llX"
#define BN_HEX_FMT2 "%016llX"
#endif
#ifdef THIRTY_TWO_BIT
#ifdef BN_LLONG
# if defined(_WIN32) && !defined(__GNUC__)
# define BN_ULLONG unsigned __int64
# define BN_MASK (0xffffffffffffffffI64)
# else
# define BN_ULLONG unsigned long long
# define BN_MASK (0xffffffffffffffffLL)
# endif
#endif
#define BN_ULONG unsigned int
#define BN_LONG int
#define BN_BITS 64
#define BN_BYTES 4
#define BN_BITS2 32
#define BN_BITS4 16
#define BN_MASK2 (0xffffffffL)
#define BN_MASK2l (0xffff)
#define BN_MASK2h1 (0xffff8000L)
#define BN_MASK2h (0xffff0000L)
#define BN_TBIT (0x80000000L)
#define BN_DEC_CONV (1000000000L)
#define BN_DEC_FMT1 "%u"
#define BN_DEC_FMT2 "%09u"
#define BN_DEC_NUM 9
#define BN_HEX_FMT1 "%X"
#define BN_HEX_FMT2 "%08X"
#endif
#define BN_DEFAULT_BITS 1280
#define BN_FLG_MALLOCED 0x01
#define BN_FLG_STATIC_DATA 0x02
#define BN_FLG_CONSTTIME 0x04 /* avoid leaking exponent information through timing,
* BN_mod_exp_mont() will call BN_mod_exp_mont_consttime,
* BN_div() will call BN_div_no_branch,
* BN_mod_inverse() will call BN_mod_inverse_no_branch.
*/
#ifndef OPENSSL_NO_DEPRECATED
#define BN_FLG_EXP_CONSTTIME BN_FLG_CONSTTIME /* deprecated name for the flag */
/* avoid leaking exponent information through timings
* (BN_mod_exp_mont() will call BN_mod_exp_mont_consttime) */
#endif
#ifndef OPENSSL_NO_DEPRECATED
#define BN_FLG_FREE 0x8000 /* used for debuging */
#endif
#define BN_set_flags(b,n) ((b)->flags|=(n))
#define BN_get_flags(b,n) ((b)->flags&(n))
/* get a clone of a BIGNUM with changed flags, for *temporary* use only
* (the two BIGNUMs cannot not be used in parallel!) */
#define BN_with_flags(dest,b,n) ((dest)->d=(b)->d, \
(dest)->top=(b)->top, \
(dest)->dmax=(b)->dmax, \
(dest)->neg=(b)->neg, \
(dest)->flags=(((dest)->flags & BN_FLG_MALLOCED) \
| ((b)->flags & ~BN_FLG_MALLOCED) \
| BN_FLG_STATIC_DATA \
| (n)))
/* Already declared in ossl_typ.h */
#if 0
typedef struct bignum_st BIGNUM;
/* Used for temp variables (declaration hidden in bn_lcl.h) */
typedef struct bignum_ctx BN_CTX;
typedef struct bn_blinding_st BN_BLINDING;
typedef struct bn_mont_ctx_st BN_MONT_CTX;
typedef struct bn_recp_ctx_st BN_RECP_CTX;
typedef struct bn_gencb_st BN_GENCB;
#endif
struct bignum_st
{
BN_ULONG *d; /* Pointer to an array of 'BN_BITS2' bit chunks. */
int top; /* Index of last used d +1. */
/* The next are internal book keeping for bn_expand. */
int dmax; /* Size of the d array. */
int neg; /* one if the number is negative */
int flags;
};
/* Used for montgomery multiplication */
struct bn_mont_ctx_st
{
int ri; /* number of bits in R */
BIGNUM RR; /* used to convert to montgomery form */
BIGNUM N; /* The modulus */
BIGNUM Ni; /* R*(1/R mod N) - N*Ni = 1
* (Ni is only stored for bignum algorithm) */
BN_ULONG n0[2];/* least significant word(s) of Ni;
(type changed with 0.9.9, was "BN_ULONG n0;" before) */
int flags;
};
/* Used for reciprocal division/mod functions
* It cannot be shared between threads
*/
struct bn_recp_ctx_st
{
BIGNUM N; /* the divisor */
BIGNUM Nr; /* the reciprocal */
int num_bits;
int shift;
int flags;
};
/* Used for slow "generation" functions. */
struct bn_gencb_st
{
unsigned int ver; /* To handle binary (in)compatibility */
void *arg; /* callback-specific data */
union
{
/* if(ver==1) - handles old style callbacks */
void (*cb_1)(int, int, void *);
/* if(ver==2) - new callback style */
int (*cb_2)(int, int, BN_GENCB *);
} cb;
};
/* Wrapper function to make using BN_GENCB easier, */
int BN_GENCB_call(BN_GENCB *cb, int a, int b);
/* Macro to populate a BN_GENCB structure with an "old"-style callback */
#define BN_GENCB_set_old(gencb, callback, cb_arg) { \
BN_GENCB *tmp_gencb = (gencb); \
tmp_gencb->ver = 1; \
tmp_gencb->arg = (cb_arg); \
tmp_gencb->cb.cb_1 = (callback); }
/* Macro to populate a BN_GENCB structure with a "new"-style callback */
#define BN_GENCB_set(gencb, callback, cb_arg) { \
BN_GENCB *tmp_gencb = (gencb); \
tmp_gencb->ver = 2; \
tmp_gencb->arg = (cb_arg); \
tmp_gencb->cb.cb_2 = (callback); }
#define BN_prime_checks 0 /* default: select number of iterations
based on the size of the number */
/* number of Miller-Rabin iterations for an error rate of less than 2^-80
* for random 'b'-bit input, b >= 100 (taken from table 4.4 in the Handbook
* of Applied Cryptography [Menezes, van Oorschot, Vanstone; CRC Press 1996];
* original paper: Damgaard, Landrock, Pomerance: Average case error estimates
* for the strong probable prime test. -- Math. Comp. 61 (1993) 177-194) */
#define BN_prime_checks_for_size(b) ((b) >= 1300 ? 2 : \
(b) >= 850 ? 3 : \
(b) >= 650 ? 4 : \
(b) >= 550 ? 5 : \
(b) >= 450 ? 6 : \
(b) >= 400 ? 7 : \
(b) >= 350 ? 8 : \
(b) >= 300 ? 9 : \
(b) >= 250 ? 12 : \
(b) >= 200 ? 15 : \
(b) >= 150 ? 18 : \
/* b >= 100 */ 27)
#define BN_num_bytes(a) ((BN_num_bits(a)+7)/8)
/* Note that BN_abs_is_word didn't work reliably for w == 0 until 0.9.8 */
#define BN_abs_is_word(a,w) ((((a)->top == 1) && ((a)->d[0] == (BN_ULONG)(w))) || \
(((w) == 0) && ((a)->top == 0)))
#define BN_is_zero(a) ((a)->top == 0)
#define BN_is_one(a) (BN_abs_is_word((a),1) && !(a)->neg)
#define BN_is_word(a,w) (BN_abs_is_word((a),(w)) && (!(w) || !(a)->neg))
#define BN_is_odd(a) (((a)->top > 0) && ((a)->d[0] & 1))
#define BN_one(a) (BN_set_word((a),1))
#define BN_zero_ex(a) \
do { \
BIGNUM *_tmp_bn = (a); \
_tmp_bn->top = 0; \
_tmp_bn->neg = 0; \
} while(0)
#ifdef OPENSSL_NO_DEPRECATED
#define BN_zero(a) BN_zero_ex(a)
#else
#define BN_zero(a) (BN_set_word((a),0))
#endif
const BIGNUM *BN_value_one(void);
char * BN_options(void);
BN_CTX *BN_CTX_new(void);
#ifndef OPENSSL_NO_DEPRECATED
void BN_CTX_init(BN_CTX *c);
#endif
void BN_CTX_free(BN_CTX *c);
void BN_CTX_start(BN_CTX *ctx);
BIGNUM *BN_CTX_get(BN_CTX *ctx);
void BN_CTX_end(BN_CTX *ctx);
int BN_rand(BIGNUM *rnd, int bits, int top,int bottom);
int BN_pseudo_rand(BIGNUM *rnd, int bits, int top,int bottom);
int BN_rand_range(BIGNUM *rnd, const BIGNUM *range);
int BN_pseudo_rand_range(BIGNUM *rnd, const BIGNUM *range);
int BN_num_bits(const BIGNUM *a);
int BN_num_bits_word(BN_ULONG);
BIGNUM *BN_new(void);
void BN_init(BIGNUM *);
void BN_clear_free(BIGNUM *a);
BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b);
void BN_swap(BIGNUM *a, BIGNUM *b);
BIGNUM *BN_bin2bn(const unsigned char *s,int len,BIGNUM *ret);
int BN_bn2bin(const BIGNUM *a, unsigned char *to);
BIGNUM *BN_mpi2bn(const unsigned char *s,int len,BIGNUM *ret);
int BN_bn2mpi(const BIGNUM *a, unsigned char *to);
int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
int BN_sqr(BIGNUM *r, const BIGNUM *a,BN_CTX *ctx);
/** BN_set_negative sets sign of a BIGNUM
* \param b pointer to the BIGNUM object
* \param n 0 if the BIGNUM b should be positive and a value != 0 otherwise
*/
void BN_set_negative(BIGNUM *b, int n);
/** BN_is_negative returns 1 if the BIGNUM is negative
* \param a pointer to the BIGNUM object
* \return 1 if a < 0 and 0 otherwise
*/
#define BN_is_negative(a) ((a)->neg != 0)
int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
BN_CTX *ctx);
#define BN_mod(rem,m,d,ctx) BN_div(NULL,(rem),(m),(d),(ctx))
int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx);
int BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
int BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
int BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx);
int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m);
int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const BIGNUM *m, BN_CTX *ctx);
int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
int BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m);
int BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m, BN_CTX *ctx);
int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m);
BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w);
BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w);
int BN_mul_word(BIGNUM *a, BN_ULONG w);
int BN_add_word(BIGNUM *a, BN_ULONG w);
int BN_sub_word(BIGNUM *a, BN_ULONG w);
int BN_set_word(BIGNUM *a, BN_ULONG w);
BN_ULONG BN_get_word(const BIGNUM *a);
int BN_cmp(const BIGNUM *a, const BIGNUM *b);
void BN_free(BIGNUM *a);
int BN_is_bit_set(const BIGNUM *a, int n);
int BN_lshift(BIGNUM *r, const BIGNUM *a, int n);
int BN_lshift1(BIGNUM *r, const BIGNUM *a);
int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,BN_CTX *ctx);
int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m,BN_CTX *ctx);
int BN_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont);
int BN_mod_exp_mont_word(BIGNUM *r, BN_ULONG a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
int BN_mod_exp2_mont(BIGNUM *r, const BIGNUM *a1, const BIGNUM *p1,
const BIGNUM *a2, const BIGNUM *p2,const BIGNUM *m,
BN_CTX *ctx,BN_MONT_CTX *m_ctx);
int BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m,BN_CTX *ctx);
int BN_mask_bits(BIGNUM *a,int n);
#ifndef OPENSSL_NO_FP_API
int BN_print_fp(FILE *fp, const BIGNUM *a);
#endif
#ifdef HEADER_BIO_H
int BN_print(BIO *fp, const BIGNUM *a);
#else
int BN_print(void *fp, const BIGNUM *a);
#endif
int BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx);
int BN_rshift(BIGNUM *r, const BIGNUM *a, int n);
int BN_rshift1(BIGNUM *r, const BIGNUM *a);
void BN_clear(BIGNUM *a);
BIGNUM *BN_dup(const BIGNUM *a);
int BN_ucmp(const BIGNUM *a, const BIGNUM *b);
int BN_set_bit(BIGNUM *a, int n);
int BN_clear_bit(BIGNUM *a, int n);
char * BN_bn2hex(const BIGNUM *a);
char * BN_bn2dec(const BIGNUM *a);
int BN_hex2bn(BIGNUM **a, const char *str);
int BN_dec2bn(BIGNUM **a, const char *str);
int BN_asc2bn(BIGNUM **a, const char *str);
int BN_gcd(BIGNUM *r,const BIGNUM *a,const BIGNUM *b,BN_CTX *ctx);
int BN_kronecker(const BIGNUM *a,const BIGNUM *b,BN_CTX *ctx); /* returns -2 for error */
BIGNUM *BN_mod_inverse(BIGNUM *ret,
const BIGNUM *a, const BIGNUM *n,BN_CTX *ctx);
BIGNUM *BN_mod_sqrt(BIGNUM *ret,
const BIGNUM *a, const BIGNUM *n,BN_CTX *ctx);
/* Deprecated versions */
#ifndef OPENSSL_NO_DEPRECATED
BIGNUM *BN_generate_prime(BIGNUM *ret,int bits,int safe,
const BIGNUM *add, const BIGNUM *rem,
void (*callback)(int,int,void *),void *cb_arg);
int BN_is_prime(const BIGNUM *p,int nchecks,
void (*callback)(int,int,void *),
BN_CTX *ctx,void *cb_arg);
int BN_is_prime_fasttest(const BIGNUM *p,int nchecks,
void (*callback)(int,int,void *),BN_CTX *ctx,void *cb_arg,
int do_trial_division);
#endif /* !defined(OPENSSL_NO_DEPRECATED) */
/* Newer versions */
int BN_generate_prime_ex(BIGNUM *ret,int bits,int safe, const BIGNUM *add,
const BIGNUM *rem, BN_GENCB *cb);
int BN_is_prime_ex(const BIGNUM *p,int nchecks, BN_CTX *ctx, BN_GENCB *cb);
int BN_is_prime_fasttest_ex(const BIGNUM *p,int nchecks, BN_CTX *ctx,
int do_trial_division, BN_GENCB *cb);
BN_MONT_CTX *BN_MONT_CTX_new(void );
void BN_MONT_CTX_init(BN_MONT_CTX *ctx);
int BN_mod_mul_montgomery(BIGNUM *r,const BIGNUM *a,const BIGNUM *b,
BN_MONT_CTX *mont, BN_CTX *ctx);
#define BN_to_montgomery(r,a,mont,ctx) BN_mod_mul_montgomery(\
(r),(a),&((mont)->RR),(mont),(ctx))
int BN_from_montgomery(BIGNUM *r,const BIGNUM *a,
BN_MONT_CTX *mont, BN_CTX *ctx);
void BN_MONT_CTX_free(BN_MONT_CTX *mont);
int BN_MONT_CTX_set(BN_MONT_CTX *mont,const BIGNUM *mod,BN_CTX *ctx);
BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to,BN_MONT_CTX *from);
BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
const BIGNUM *mod, BN_CTX *ctx);
/* BN_BLINDING flags */
#define BN_BLINDING_NO_UPDATE 0x00000001
#define BN_BLINDING_NO_RECREATE 0x00000002
BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod);
void BN_BLINDING_free(BN_BLINDING *b);
int BN_BLINDING_update(BN_BLINDING *b,BN_CTX *ctx);
int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *);
int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *);
#ifndef OPENSSL_NO_DEPRECATED
unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
#endif
CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *);
unsigned long BN_BLINDING_get_flags(const BN_BLINDING *);
void BN_BLINDING_set_flags(BN_BLINDING *, unsigned long);
BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
BN_MONT_CTX *m_ctx);
#ifndef OPENSSL_NO_DEPRECATED
void BN_set_params(int mul,int high,int low,int mont);
int BN_get_params(int which); /* 0, mul, 1 high, 2 low, 3 mont */
#endif
void BN_RECP_CTX_init(BN_RECP_CTX *recp);
BN_RECP_CTX *BN_RECP_CTX_new(void);
void BN_RECP_CTX_free(BN_RECP_CTX *recp);
int BN_RECP_CTX_set(BN_RECP_CTX *recp,const BIGNUM *rdiv,BN_CTX *ctx);
int BN_mod_mul_reciprocal(BIGNUM *r, const BIGNUM *x, const BIGNUM *y,
BN_RECP_CTX *recp,BN_CTX *ctx);
int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx);
int BN_div_recp(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m,
BN_RECP_CTX *recp, BN_CTX *ctx);
/* Functions for arithmetic over binary polynomials represented by BIGNUMs.
*
* The BIGNUM::neg property of BIGNUMs representing binary polynomials is
* ignored.
*
* Note that input arguments are not const so that their bit arrays can
* be expanded to the appropriate size if needed.
*/
int BN_GF2m_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b); /*r = a + b*/
#define BN_GF2m_sub(r, a, b) BN_GF2m_add(r, a, b)
int BN_GF2m_mod(BIGNUM *r, const BIGNUM *a, const BIGNUM *p); /*r=a mod p*/
int BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const BIGNUM *p, BN_CTX *ctx); /* r = (a * b) mod p */
int BN_GF2m_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
BN_CTX *ctx); /* r = (a * a) mod p */
int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *b, const BIGNUM *p,
BN_CTX *ctx); /* r = (1 / b) mod p */
int BN_GF2m_mod_div(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const BIGNUM *p, BN_CTX *ctx); /* r = (a / b) mod p */
int BN_GF2m_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const BIGNUM *p, BN_CTX *ctx); /* r = (a ^ b) mod p */
int BN_GF2m_mod_sqrt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
BN_CTX *ctx); /* r = sqrt(a) mod p */
int BN_GF2m_mod_solve_quad(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
BN_CTX *ctx); /* r^2 + r = a mod p */
#define BN_GF2m_cmp(a, b) BN_ucmp((a), (b))
/* Some functions allow for representation of the irreducible polynomials
* as an unsigned int[], say p. The irreducible f(t) is then of the form:
* t^p[0] + t^p[1] + ... + t^p[k]
* where m = p[0] > p[1] > ... > p[k] = 0.
*/
int BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const int p[]);
/* r = a mod p */
int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const int p[], BN_CTX *ctx); /* r = (a * b) mod p */
int BN_GF2m_mod_sqr_arr(BIGNUM *r, const BIGNUM *a, const int p[],
BN_CTX *ctx); /* r = (a * a) mod p */
int BN_GF2m_mod_inv_arr(BIGNUM *r, const BIGNUM *b, const int p[],
BN_CTX *ctx); /* r = (1 / b) mod p */
int BN_GF2m_mod_div_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const int p[], BN_CTX *ctx); /* r = (a / b) mod p */
int BN_GF2m_mod_exp_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const int p[], BN_CTX *ctx); /* r = (a ^ b) mod p */
int BN_GF2m_mod_sqrt_arr(BIGNUM *r, const BIGNUM *a,
const int p[], BN_CTX *ctx); /* r = sqrt(a) mod p */
int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a,
const int p[], BN_CTX *ctx); /* r^2 + r = a mod p */
int BN_GF2m_poly2arr(const BIGNUM *a, int p[], int max);
int BN_GF2m_arr2poly(const int p[], BIGNUM *a);
/* faster mod functions for the 'NIST primes'
* 0 <= a < p^2 */
int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
const BIGNUM *BN_get0_nist_prime_192(void);
const BIGNUM *BN_get0_nist_prime_224(void);
const BIGNUM *BN_get0_nist_prime_256(void);
const BIGNUM *BN_get0_nist_prime_384(void);
const BIGNUM *BN_get0_nist_prime_521(void);
/* library internal functions */
#define bn_expand(a,bits) ((((((bits+BN_BITS2-1))/BN_BITS2)) <= (a)->dmax)?\
(a):bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2))
#define bn_wexpand(a,words) (((words) <= (a)->dmax)?(a):bn_expand2((a),(words)))
BIGNUM *bn_expand2(BIGNUM *a, int words);
#ifndef OPENSSL_NO_DEPRECATED
BIGNUM *bn_dup_expand(const BIGNUM *a, int words); /* unused */
#endif
/* Bignum consistency macros
* There is one "API" macro, bn_fix_top(), for stripping leading zeroes from
* bignum data after direct manipulations on the data. There is also an
* "internal" macro, bn_check_top(), for verifying that there are no leading
* zeroes. Unfortunately, some auditing is required due to the fact that
* bn_fix_top() has become an overabused duct-tape because bignum data is
* occasionally passed around in an inconsistent state. So the following
* changes have been made to sort this out;
* - bn_fix_top()s implementation has been moved to bn_correct_top()
* - if BN_DEBUG isn't defined, bn_fix_top() maps to bn_correct_top(), and
* bn_check_top() is as before.
* - if BN_DEBUG *is* defined;
* - bn_check_top() tries to pollute unused words even if the bignum 'top' is
* consistent. (ed: only if BN_DEBUG_RAND is defined)
* - bn_fix_top() maps to bn_check_top() rather than "fixing" anything.
* The idea is to have debug builds flag up inconsistent bignums when they
* occur. If that occurs in a bn_fix_top(), we examine the code in question; if
* the use of bn_fix_top() was appropriate (ie. it follows directly after code
* that manipulates the bignum) it is converted to bn_correct_top(), and if it
* was not appropriate, we convert it permanently to bn_check_top() and track
* down the cause of the bug. Eventually, no internal code should be using the
* bn_fix_top() macro. External applications and libraries should try this with
* their own code too, both in terms of building against the openssl headers
* with BN_DEBUG defined *and* linking with a version of OpenSSL built with it
* defined. This not only improves external code, it provides more test
* coverage for openssl's own code.
*/
#ifdef BN_DEBUG
/* We only need assert() when debugging */
#include <assert.h>
#ifdef BN_DEBUG_RAND
/* To avoid "make update" cvs wars due to BN_DEBUG, use some tricks */
#ifndef RAND_pseudo_bytes
int RAND_pseudo_bytes(unsigned char *buf,int num);
#define BN_DEBUG_TRIX
#endif
#define bn_pollute(a) \
do { \
const BIGNUM *_bnum1 = (a); \
if(_bnum1->top < _bnum1->dmax) { \
unsigned char _tmp_char; \
/* We cast away const without the compiler knowing, any \
* *genuinely* constant variables that aren't mutable \
* wouldn't be constructed with top!=dmax. */ \
BN_ULONG *_not_const; \
memcpy(&_not_const, &_bnum1->d, sizeof(BN_ULONG*)); \
RAND_pseudo_bytes(&_tmp_char, 1); \
memset((unsigned char *)(_not_const + _bnum1->top), _tmp_char, \
(_bnum1->dmax - _bnum1->top) * sizeof(BN_ULONG)); \
} \
} while(0)
#ifdef BN_DEBUG_TRIX
#undef RAND_pseudo_bytes
#endif
#else
#define bn_pollute(a)
#endif
#define bn_check_top(a) \
do { \
const BIGNUM *_bnum2 = (a); \
if (_bnum2 != NULL) { \
assert((_bnum2->top == 0) || \
(_bnum2->d[_bnum2->top - 1] != 0)); \
bn_pollute(_bnum2); \
} \
} while(0)
#define bn_fix_top(a) bn_check_top(a)
#else /* !BN_DEBUG */
#define bn_pollute(a)
#define bn_check_top(a)
#define bn_fix_top(a) bn_correct_top(a)
#endif
#define bn_correct_top(a) \
{ \
BN_ULONG *ftl; \
int tmp_top = (a)->top; \
if (tmp_top > 0) \
{ \
for (ftl= &((a)->d[tmp_top-1]); tmp_top > 0; tmp_top--) \
if (*(ftl--)) break; \
(a)->top = tmp_top; \
} \
bn_pollute(a); \
}
BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w);
BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w);
void bn_sqr_words(BN_ULONG *rp, const BN_ULONG *ap, int num);
BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d);
BN_ULONG bn_add_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int num);
BN_ULONG bn_sub_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int num);
/* Primes from RFC 2409 */
BIGNUM *get_rfc2409_prime_768(BIGNUM *bn);
BIGNUM *get_rfc2409_prime_1024(BIGNUM *bn);
/* Primes from RFC 3526 */
BIGNUM *get_rfc3526_prime_1536(BIGNUM *bn);
BIGNUM *get_rfc3526_prime_2048(BIGNUM *bn);
BIGNUM *get_rfc3526_prime_3072(BIGNUM *bn);
BIGNUM *get_rfc3526_prime_4096(BIGNUM *bn);
BIGNUM *get_rfc3526_prime_6144(BIGNUM *bn);
BIGNUM *get_rfc3526_prime_8192(BIGNUM *bn);
int BN_bntest_rand(BIGNUM *rnd, int bits, int top,int bottom);
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
*/
void ERR_load_BN_strings(void);
/* Error codes for the BN functions. */
/* Function codes. */
#define BN_F_BNRAND 127
#define BN_F_BN_BLINDING_CONVERT_EX 100
#define BN_F_BN_BLINDING_CREATE_PARAM 128
#define BN_F_BN_BLINDING_INVERT_EX 101
#define BN_F_BN_BLINDING_NEW 102
#define BN_F_BN_BLINDING_UPDATE 103
#define BN_F_BN_BN2DEC 104
#define BN_F_BN_BN2HEX 105
#define BN_F_BN_CTX_GET 116
#define BN_F_BN_CTX_NEW 106
#define BN_F_BN_CTX_START 129
#define BN_F_BN_DIV 107
#define BN_F_BN_DIV_NO_BRANCH 138
#define BN_F_BN_DIV_RECP 130
#define BN_F_BN_EXP 123
#define BN_F_BN_EXPAND2 108
#define BN_F_BN_EXPAND_INTERNAL 120
#define BN_F_BN_GF2M_MOD 131
#define BN_F_BN_GF2M_MOD_EXP 132
#define BN_F_BN_GF2M_MOD_MUL 133
#define BN_F_BN_GF2M_MOD_SOLVE_QUAD 134
#define BN_F_BN_GF2M_MOD_SOLVE_QUAD_ARR 135
#define BN_F_BN_GF2M_MOD_SQR 136
#define BN_F_BN_GF2M_MOD_SQRT 137
#define BN_F_BN_MOD_EXP2_MONT 118
#define BN_F_BN_MOD_EXP_MONT 109
#define BN_F_BN_MOD_EXP_MONT_CONSTTIME 124
#define BN_F_BN_MOD_EXP_MONT_WORD 117
#define BN_F_BN_MOD_EXP_RECP 125
#define BN_F_BN_MOD_EXP_SIMPLE 126
#define BN_F_BN_MOD_INVERSE 110
#define BN_F_BN_MOD_INVERSE_NO_BRANCH 139
#define BN_F_BN_MOD_LSHIFT_QUICK 119
#define BN_F_BN_MOD_MUL_RECIPROCAL 111
#define BN_F_BN_MOD_SQRT 121
#define BN_F_BN_MPI2BN 112
#define BN_F_BN_NEW 113
#define BN_F_BN_RAND 114
#define BN_F_BN_RAND_RANGE 122
#define BN_F_BN_USUB 115
/* Reason codes. */
#define BN_R_ARG2_LT_ARG3 100
#define BN_R_BAD_RECIPROCAL 101
#define BN_R_BIGNUM_TOO_LONG 114
#define BN_R_CALLED_WITH_EVEN_MODULUS 102
#define BN_R_DIV_BY_ZERO 103
#define BN_R_ENCODING_ERROR 104
#define BN_R_EXPAND_ON_STATIC_BIGNUM_DATA 105
#define BN_R_INPUT_NOT_REDUCED 110
#define BN_R_INVALID_LENGTH 106
#define BN_R_INVALID_RANGE 115
#define BN_R_NOT_A_SQUARE 111
#define BN_R_NOT_INITIALIZED 107
#define BN_R_NO_INVERSE 108
#define BN_R_NO_SOLUTION 116
#define BN_R_P_IS_NOT_PRIME 112
#define BN_R_TOO_MANY_ITERATIONS 113
#define BN_R_TOO_MANY_TEMPORARY_VARIABLES 109
#ifdef __cplusplus
}
#endif
#endif

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We need
* bn_mul_comba8
* bn_mul_comba4
* bn_mul_normal
* bn_mul_recursive
* bn_sqr_comba8
* bn_sqr_comba4
bn_sqr_normal -> BN_sqr
* bn_sqr_recursive
* bn_mul_low_recursive
* bn_mul_low_normal
* bn_mul_high
* bn_mul_part_recursive # symetric but not power of 2
bn_mul_asymetric_recursive # uneven, but do the chop up.

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/* crypto/bn/bn_add.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
/* r can == a or b */
int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
const BIGNUM *tmp;
int a_neg = a->neg, ret;
bn_check_top(a);
bn_check_top(b);
/* a + b a+b
* a + -b a-b
* -a + b b-a
* -a + -b -(a+b)
*/
if (a_neg ^ b->neg)
{
/* only one is negative */
if (a_neg)
{ tmp=a; a=b; b=tmp; }
/* we are now a - b */
if (BN_ucmp(a,b) < 0)
{
if (!BN_usub(r,b,a)) return(0);
r->neg=1;
}
else
{
if (!BN_usub(r,a,b)) return(0);
r->neg=0;
}
return(1);
}
ret = BN_uadd(r,a,b);
r->neg = a_neg;
bn_check_top(r);
return ret;
}
/* unsigned add of b to a */
int BN_uadd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
int max,min,dif;
BN_ULONG *ap,*bp,*rp,carry,t1,t2;
const BIGNUM *tmp;
bn_check_top(a);
bn_check_top(b);
if (a->top < b->top)
{ tmp=a; a=b; b=tmp; }
max = a->top;
min = b->top;
dif = max - min;
if (bn_wexpand(r,max+1) == NULL)
return 0;
r->top=max;
ap=a->d;
bp=b->d;
rp=r->d;
carry=bn_add_words(rp,ap,bp,min);
rp+=min;
ap+=min;
bp+=min;
if (carry)
{
while (dif)
{
dif--;
t1 = *(ap++);
t2 = (t1+1) & BN_MASK2;
*(rp++) = t2;
if (t2)
{
carry=0;
break;
}
}
if (carry)
{
/* carry != 0 => dif == 0 */
*rp = 1;
r->top++;
}
}
if (dif && rp != ap)
while (dif--)
/* copy remaining words if ap != rp */
*(rp++) = *(ap++);
r->neg = 0;
bn_check_top(r);
return 1;
}
/* unsigned subtraction of b from a, a must be larger than b. */
int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
int max,min,dif;
register BN_ULONG t1,t2,*ap,*bp,*rp;
int i,carry;
#if defined(IRIX_CC_BUG) && !defined(LINT)
int dummy;
#endif
bn_check_top(a);
bn_check_top(b);
max = a->top;
min = b->top;
dif = max - min;
if (dif < 0) /* hmm... should not be happening */
{
BNerr(BN_F_BN_USUB,BN_R_ARG2_LT_ARG3);
return(0);
}
if (bn_wexpand(r,max) == NULL) return(0);
ap=a->d;
bp=b->d;
rp=r->d;
#if 1
carry=0;
for (i = min; i != 0; i--)
{
t1= *(ap++);
t2= *(bp++);
if (carry)
{
carry=(t1 <= t2);
t1=(t1-t2-1)&BN_MASK2;
}
else
{
carry=(t1 < t2);
t1=(t1-t2)&BN_MASK2;
}
#if defined(IRIX_CC_BUG) && !defined(LINT)
dummy=t1;
#endif
*(rp++)=t1&BN_MASK2;
}
#else
carry=bn_sub_words(rp,ap,bp,min);
ap+=min;
bp+=min;
rp+=min;
#endif
if (carry) /* subtracted */
{
if (!dif)
/* error: a < b */
return 0;
while (dif)
{
dif--;
t1 = *(ap++);
t2 = (t1-1)&BN_MASK2;
*(rp++) = t2;
if (t1)
break;
}
}
#if 0
memcpy(rp,ap,sizeof(*rp)*(max-i));
#else
if (rp != ap)
{
for (;;)
{
if (!dif--) break;
rp[0]=ap[0];
if (!dif--) break;
rp[1]=ap[1];
if (!dif--) break;
rp[2]=ap[2];
if (!dif--) break;
rp[3]=ap[3];
rp+=4;
ap+=4;
}
}
#endif
r->top=max;
r->neg=0;
bn_correct_top(r);
return(1);
}
int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
{
int max;
int add=0,neg=0;
const BIGNUM *tmp;
bn_check_top(a);
bn_check_top(b);
/* a - b a-b
* a - -b a+b
* -a - b -(a+b)
* -a - -b b-a
*/
if (a->neg)
{
if (b->neg)
{ tmp=a; a=b; b=tmp; }
else
{ add=1; neg=1; }
}
else
{
if (b->neg) { add=1; neg=0; }
}
if (add)
{
if (!BN_uadd(r,a,b)) return(0);
r->neg=neg;
return(1);
}
/* We are actually doing a - b :-) */
max=(a->top > b->top)?a->top:b->top;
if (bn_wexpand(r,max) == NULL) return(0);
if (BN_ucmp(a,b) < 0)
{
if (!BN_usub(r,b,a)) return(0);
r->neg=1;
}
else
{
if (!BN_usub(r,a,b)) return(0);
r->neg=0;
}
bn_check_top(r);
return(1);
}

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@ -0,0 +1,376 @@
/* crypto/bn/bn_blind.c */
/* ====================================================================
* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
#define BN_BLINDING_COUNTER 32
struct bn_blinding_st
{
BIGNUM *A;
BIGNUM *Ai;
BIGNUM *e;
BIGNUM *mod; /* just a reference */
#ifndef OPENSSL_NO_DEPRECATED
unsigned long thread_id; /* added in OpenSSL 0.9.6j and 0.9.7b;
* used only by crypto/rsa/rsa_eay.c, rsa_lib.c */
#endif
CRYPTO_THREADID tid;
unsigned int counter;
unsigned long flags;
BN_MONT_CTX *m_ctx;
int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx,
BN_MONT_CTX *m_ctx);
};
BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod)
{
BN_BLINDING *ret=NULL;
bn_check_top(mod);
if ((ret=(BN_BLINDING *)OPENSSL_malloc(sizeof(BN_BLINDING))) == NULL)
{
BNerr(BN_F_BN_BLINDING_NEW,ERR_R_MALLOC_FAILURE);
return(NULL);
}
memset(ret,0,sizeof(BN_BLINDING));
if (A != NULL)
{
if ((ret->A = BN_dup(A)) == NULL) goto err;
}
if (Ai != NULL)
{
if ((ret->Ai = BN_dup(Ai)) == NULL) goto err;
}
/* save a copy of mod in the BN_BLINDING structure */
if ((ret->mod = BN_dup(mod)) == NULL) goto err;
if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)
BN_set_flags(ret->mod, BN_FLG_CONSTTIME);
ret->counter = BN_BLINDING_COUNTER;
CRYPTO_THREADID_current(&ret->tid);
return(ret);
err:
if (ret != NULL) BN_BLINDING_free(ret);
return(NULL);
}
void BN_BLINDING_free(BN_BLINDING *r)
{
if(r == NULL)
return;
if (r->A != NULL) BN_free(r->A );
if (r->Ai != NULL) BN_free(r->Ai);
if (r->e != NULL) BN_free(r->e );
if (r->mod != NULL) BN_free(r->mod);
OPENSSL_free(r);
}
int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)
{
int ret=0;
if ((b->A == NULL) || (b->Ai == NULL))
{
BNerr(BN_F_BN_BLINDING_UPDATE,BN_R_NOT_INITIALIZED);
goto err;
}
if (--(b->counter) == 0 && b->e != NULL &&
!(b->flags & BN_BLINDING_NO_RECREATE))
{
/* re-create blinding parameters */
if (!BN_BLINDING_create_param(b, NULL, NULL, ctx, NULL, NULL))
goto err;
}
else if (!(b->flags & BN_BLINDING_NO_UPDATE))
{
if (!BN_mod_mul(b->A,b->A,b->A,b->mod,ctx)) goto err;
if (!BN_mod_mul(b->Ai,b->Ai,b->Ai,b->mod,ctx)) goto err;
}
ret=1;
err:
if (b->counter == 0)
b->counter = BN_BLINDING_COUNTER;
return(ret);
}
int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)
{
return BN_BLINDING_convert_ex(n, NULL, b, ctx);
}
int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)
{
int ret = 1;
bn_check_top(n);
if ((b->A == NULL) || (b->Ai == NULL))
{
BNerr(BN_F_BN_BLINDING_CONVERT_EX,BN_R_NOT_INITIALIZED);
return(0);
}
if (r != NULL)
{
if (!BN_copy(r, b->Ai)) ret=0;
}
if (!BN_mod_mul(n,n,b->A,b->mod,ctx)) ret=0;
return ret;
}
int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)
{
return BN_BLINDING_invert_ex(n, NULL, b, ctx);
}
int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)
{
int ret;
bn_check_top(n);
if ((b->A == NULL) || (b->Ai == NULL))
{
BNerr(BN_F_BN_BLINDING_INVERT_EX,BN_R_NOT_INITIALIZED);
return(0);
}
if (r != NULL)
ret = BN_mod_mul(n, n, r, b->mod, ctx);
else
ret = BN_mod_mul(n, n, b->Ai, b->mod, ctx);
if (ret >= 0)
{
if (!BN_BLINDING_update(b,ctx))
return(0);
}
bn_check_top(n);
return(ret);
}
#ifndef OPENSSL_NO_DEPRECATED
unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *b)
{
return b->thread_id;
}
void BN_BLINDING_set_thread_id(BN_BLINDING *b, unsigned long n)
{
b->thread_id = n;
}
#endif
CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *b)
{
return &b->tid;
}
unsigned long BN_BLINDING_get_flags(const BN_BLINDING *b)
{
return b->flags;
}
void BN_BLINDING_set_flags(BN_BLINDING *b, unsigned long flags)
{
b->flags = flags;
}
BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
BN_MONT_CTX *m_ctx)
{
int retry_counter = 32;
BN_BLINDING *ret = NULL;
if (b == NULL)
ret = BN_BLINDING_new(NULL, NULL, m);
else
ret = b;
if (ret == NULL)
goto err;
if (ret->A == NULL && (ret->A = BN_new()) == NULL)
goto err;
if (ret->Ai == NULL && (ret->Ai = BN_new()) == NULL)
goto err;
if (e != NULL)
{
if (ret->e != NULL)
BN_free(ret->e);
ret->e = BN_dup(e);
}
if (ret->e == NULL)
goto err;
if (bn_mod_exp != NULL)
ret->bn_mod_exp = bn_mod_exp;
if (m_ctx != NULL)
ret->m_ctx = m_ctx;
do {
if (!BN_rand_range(ret->A, ret->mod)) goto err;
if (BN_mod_inverse(ret->Ai, ret->A, ret->mod, ctx) == NULL)
{
/* this should almost never happen for good RSA keys */
unsigned long error = ERR_peek_last_error();
if (ERR_GET_REASON(error) == BN_R_NO_INVERSE)
{
if (retry_counter-- == 0)
{
BNerr(BN_F_BN_BLINDING_CREATE_PARAM,
BN_R_TOO_MANY_ITERATIONS);
goto err;
}
ERR_clear_error();
}
else
goto err;
}
else
break;
} while (1);
if (ret->bn_mod_exp != NULL && ret->m_ctx != NULL)
{
if (!ret->bn_mod_exp(ret->A, ret->A, ret->e, ret->mod, ctx, ret->m_ctx))
goto err;
}
else
{
if (!BN_mod_exp(ret->A, ret->A, ret->e, ret->mod, ctx))
goto err;
}
return ret;
err:
if (b == NULL && ret != NULL)
{
BN_BLINDING_free(ret);
ret = NULL;
}
return ret;
}

View file

@ -0,0 +1,402 @@
/* crypto/bn/knownprimes.c */
/* Insert boilerplate */
#include "bn.h"
/* "First Oakley Default Group" from RFC2409, section 6.1.
*
* The prime is: 2^768 - 2 ^704 - 1 + 2^64 * { [2^638 pi] + 149686 }
*
* RFC2409 specifies a generator of 2.
* RFC2412 specifies a generator of of 22.
*/
BIGNUM *get_rfc2409_prime_768(BIGNUM *bn)
{
static const unsigned char RFC2409_PRIME_768[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x3A,0x36,0x20,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC2409_PRIME_768,sizeof(RFC2409_PRIME_768),bn);
}
/* "Second Oakley Default Group" from RFC2409, section 6.2.
*
* The prime is: 2^1024 - 2^960 - 1 + 2^64 * { [2^894 pi] + 129093 }.
*
* RFC2409 specifies a generator of 2.
* RFC2412 specifies a generator of 22.
*/
BIGNUM *get_rfc2409_prime_1024(BIGNUM *bn)
{
static const unsigned char RFC2409_PRIME_1024[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE6,0x53,0x81,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC2409_PRIME_1024,sizeof(RFC2409_PRIME_1024),bn);
}
/* "1536-bit MODP Group" from RFC3526, Section 2.
*
* The prime is: 2^1536 - 2^1472 - 1 + 2^64 * { [2^1406 pi] + 741804 }
*
* RFC3526 specifies a generator of 2.
* RFC2312 specifies a generator of 22.
*/
BIGNUM *get_rfc3526_prime_1536(BIGNUM *bn)
{
static const unsigned char RFC3526_PRIME_1536[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x23,0x73,0x27,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC3526_PRIME_1536,sizeof(RFC3526_PRIME_1536),bn);
}
/* "2048-bit MODP Group" from RFC3526, Section 3.
*
* The prime is: 2^2048 - 2^1984 - 1 + 2^64 * { [2^1918 pi] + 124476 }
*
* RFC3526 specifies a generator of 2.
*/
BIGNUM *get_rfc3526_prime_2048(BIGNUM *bn)
{
static const unsigned char RFC3526_PRIME_2048[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAC,0xAA,0x68,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC3526_PRIME_2048,sizeof(RFC3526_PRIME_2048),bn);
}
/* "3072-bit MODP Group" from RFC3526, Section 4.
*
* The prime is: 2^3072 - 2^3008 - 1 + 2^64 * { [2^2942 pi] + 1690314 }
*
* RFC3526 specifies a generator of 2.
*/
BIGNUM *get_rfc3526_prime_3072(BIGNUM *bn)
{
static const unsigned char RFC3526_PRIME_3072[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAA,0xC4,0x2D,0xAD,0x33,0x17,0x0D,
0x04,0x50,0x7A,0x33,0xA8,0x55,0x21,0xAB,0xDF,0x1C,0xBA,0x64,
0xEC,0xFB,0x85,0x04,0x58,0xDB,0xEF,0x0A,0x8A,0xEA,0x71,0x57,
0x5D,0x06,0x0C,0x7D,0xB3,0x97,0x0F,0x85,0xA6,0xE1,0xE4,0xC7,
0xAB,0xF5,0xAE,0x8C,0xDB,0x09,0x33,0xD7,0x1E,0x8C,0x94,0xE0,
0x4A,0x25,0x61,0x9D,0xCE,0xE3,0xD2,0x26,0x1A,0xD2,0xEE,0x6B,
0xF1,0x2F,0xFA,0x06,0xD9,0x8A,0x08,0x64,0xD8,0x76,0x02,0x73,
0x3E,0xC8,0x6A,0x64,0x52,0x1F,0x2B,0x18,0x17,0x7B,0x20,0x0C,
0xBB,0xE1,0x17,0x57,0x7A,0x61,0x5D,0x6C,0x77,0x09,0x88,0xC0,
0xBA,0xD9,0x46,0xE2,0x08,0xE2,0x4F,0xA0,0x74,0xE5,0xAB,0x31,
0x43,0xDB,0x5B,0xFC,0xE0,0xFD,0x10,0x8E,0x4B,0x82,0xD1,0x20,
0xA9,0x3A,0xD2,0xCA,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC3526_PRIME_3072,sizeof(RFC3526_PRIME_3072),bn);
}
/* "4096-bit MODP Group" from RFC3526, Section 5.
*
* The prime is: 2^4096 - 2^4032 - 1 + 2^64 * { [2^3966 pi] + 240904 }
*
* RFC3526 specifies a generator of 2.
*/
BIGNUM *get_rfc3526_prime_4096(BIGNUM *bn)
{
static const unsigned char RFC3526_PRIME_4096[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAA,0xC4,0x2D,0xAD,0x33,0x17,0x0D,
0x04,0x50,0x7A,0x33,0xA8,0x55,0x21,0xAB,0xDF,0x1C,0xBA,0x64,
0xEC,0xFB,0x85,0x04,0x58,0xDB,0xEF,0x0A,0x8A,0xEA,0x71,0x57,
0x5D,0x06,0x0C,0x7D,0xB3,0x97,0x0F,0x85,0xA6,0xE1,0xE4,0xC7,
0xAB,0xF5,0xAE,0x8C,0xDB,0x09,0x33,0xD7,0x1E,0x8C,0x94,0xE0,
0x4A,0x25,0x61,0x9D,0xCE,0xE3,0xD2,0x26,0x1A,0xD2,0xEE,0x6B,
0xF1,0x2F,0xFA,0x06,0xD9,0x8A,0x08,0x64,0xD8,0x76,0x02,0x73,
0x3E,0xC8,0x6A,0x64,0x52,0x1F,0x2B,0x18,0x17,0x7B,0x20,0x0C,
0xBB,0xE1,0x17,0x57,0x7A,0x61,0x5D,0x6C,0x77,0x09,0x88,0xC0,
0xBA,0xD9,0x46,0xE2,0x08,0xE2,0x4F,0xA0,0x74,0xE5,0xAB,0x31,
0x43,0xDB,0x5B,0xFC,0xE0,0xFD,0x10,0x8E,0x4B,0x82,0xD1,0x20,
0xA9,0x21,0x08,0x01,0x1A,0x72,0x3C,0x12,0xA7,0x87,0xE6,0xD7,
0x88,0x71,0x9A,0x10,0xBD,0xBA,0x5B,0x26,0x99,0xC3,0x27,0x18,
0x6A,0xF4,0xE2,0x3C,0x1A,0x94,0x68,0x34,0xB6,0x15,0x0B,0xDA,
0x25,0x83,0xE9,0xCA,0x2A,0xD4,0x4C,0xE8,0xDB,0xBB,0xC2,0xDB,
0x04,0xDE,0x8E,0xF9,0x2E,0x8E,0xFC,0x14,0x1F,0xBE,0xCA,0xA6,
0x28,0x7C,0x59,0x47,0x4E,0x6B,0xC0,0x5D,0x99,0xB2,0x96,0x4F,
0xA0,0x90,0xC3,0xA2,0x23,0x3B,0xA1,0x86,0x51,0x5B,0xE7,0xED,
0x1F,0x61,0x29,0x70,0xCE,0xE2,0xD7,0xAF,0xB8,0x1B,0xDD,0x76,
0x21,0x70,0x48,0x1C,0xD0,0x06,0x91,0x27,0xD5,0xB0,0x5A,0xA9,
0x93,0xB4,0xEA,0x98,0x8D,0x8F,0xDD,0xC1,0x86,0xFF,0xB7,0xDC,
0x90,0xA6,0xC0,0x8F,0x4D,0xF4,0x35,0xC9,0x34,0x06,0x31,0x99,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC3526_PRIME_4096,sizeof(RFC3526_PRIME_4096),bn);
}
/* "6144-bit MODP Group" from RFC3526, Section 6.
*
* The prime is: 2^6144 - 2^6080 - 1 + 2^64 * { [2^6014 pi] + 929484 }
*
* RFC3526 specifies a generator of 2.
*/
BIGNUM *get_rfc3526_prime_6144(BIGNUM *bn)
{
static const unsigned char RFC3526_PRIME_6144[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAA,0xC4,0x2D,0xAD,0x33,0x17,0x0D,
0x04,0x50,0x7A,0x33,0xA8,0x55,0x21,0xAB,0xDF,0x1C,0xBA,0x64,
0xEC,0xFB,0x85,0x04,0x58,0xDB,0xEF,0x0A,0x8A,0xEA,0x71,0x57,
0x5D,0x06,0x0C,0x7D,0xB3,0x97,0x0F,0x85,0xA6,0xE1,0xE4,0xC7,
0xAB,0xF5,0xAE,0x8C,0xDB,0x09,0x33,0xD7,0x1E,0x8C,0x94,0xE0,
0x4A,0x25,0x61,0x9D,0xCE,0xE3,0xD2,0x26,0x1A,0xD2,0xEE,0x6B,
0xF1,0x2F,0xFA,0x06,0xD9,0x8A,0x08,0x64,0xD8,0x76,0x02,0x73,
0x3E,0xC8,0x6A,0x64,0x52,0x1F,0x2B,0x18,0x17,0x7B,0x20,0x0C,
0xBB,0xE1,0x17,0x57,0x7A,0x61,0x5D,0x6C,0x77,0x09,0x88,0xC0,
0xBA,0xD9,0x46,0xE2,0x08,0xE2,0x4F,0xA0,0x74,0xE5,0xAB,0x31,
0x43,0xDB,0x5B,0xFC,0xE0,0xFD,0x10,0x8E,0x4B,0x82,0xD1,0x20,
0xA9,0x21,0x08,0x01,0x1A,0x72,0x3C,0x12,0xA7,0x87,0xE6,0xD7,
0x88,0x71,0x9A,0x10,0xBD,0xBA,0x5B,0x26,0x99,0xC3,0x27,0x18,
0x6A,0xF4,0xE2,0x3C,0x1A,0x94,0x68,0x34,0xB6,0x15,0x0B,0xDA,
0x25,0x83,0xE9,0xCA,0x2A,0xD4,0x4C,0xE8,0xDB,0xBB,0xC2,0xDB,
0x04,0xDE,0x8E,0xF9,0x2E,0x8E,0xFC,0x14,0x1F,0xBE,0xCA,0xA6,
0x28,0x7C,0x59,0x47,0x4E,0x6B,0xC0,0x5D,0x99,0xB2,0x96,0x4F,
0xA0,0x90,0xC3,0xA2,0x23,0x3B,0xA1,0x86,0x51,0x5B,0xE7,0xED,
0x1F,0x61,0x29,0x70,0xCE,0xE2,0xD7,0xAF,0xB8,0x1B,0xDD,0x76,
0x21,0x70,0x48,0x1C,0xD0,0x06,0x91,0x27,0xD5,0xB0,0x5A,0xA9,
0x93,0xB4,0xEA,0x98,0x8D,0x8F,0xDD,0xC1,0x86,0xFF,0xB7,0xDC,
0x90,0xA6,0xC0,0x8F,0x4D,0xF4,0x35,0xC9,0x34,0x02,0x84,0x92,
0x36,0xC3,0xFA,0xB4,0xD2,0x7C,0x70,0x26,0xC1,0xD4,0xDC,0xB2,
0x60,0x26,0x46,0xDE,0xC9,0x75,0x1E,0x76,0x3D,0xBA,0x37,0xBD,
0xF8,0xFF,0x94,0x06,0xAD,0x9E,0x53,0x0E,0xE5,0xDB,0x38,0x2F,
0x41,0x30,0x01,0xAE,0xB0,0x6A,0x53,0xED,0x90,0x27,0xD8,0x31,
0x17,0x97,0x27,0xB0,0x86,0x5A,0x89,0x18,0xDA,0x3E,0xDB,0xEB,
0xCF,0x9B,0x14,0xED,0x44,0xCE,0x6C,0xBA,0xCE,0xD4,0xBB,0x1B,
0xDB,0x7F,0x14,0x47,0xE6,0xCC,0x25,0x4B,0x33,0x20,0x51,0x51,
0x2B,0xD7,0xAF,0x42,0x6F,0xB8,0xF4,0x01,0x37,0x8C,0xD2,0xBF,
0x59,0x83,0xCA,0x01,0xC6,0x4B,0x92,0xEC,0xF0,0x32,0xEA,0x15,
0xD1,0x72,0x1D,0x03,0xF4,0x82,0xD7,0xCE,0x6E,0x74,0xFE,0xF6,
0xD5,0x5E,0x70,0x2F,0x46,0x98,0x0C,0x82,0xB5,0xA8,0x40,0x31,
0x90,0x0B,0x1C,0x9E,0x59,0xE7,0xC9,0x7F,0xBE,0xC7,0xE8,0xF3,
0x23,0xA9,0x7A,0x7E,0x36,0xCC,0x88,0xBE,0x0F,0x1D,0x45,0xB7,
0xFF,0x58,0x5A,0xC5,0x4B,0xD4,0x07,0xB2,0x2B,0x41,0x54,0xAA,
0xCC,0x8F,0x6D,0x7E,0xBF,0x48,0xE1,0xD8,0x14,0xCC,0x5E,0xD2,
0x0F,0x80,0x37,0xE0,0xA7,0x97,0x15,0xEE,0xF2,0x9B,0xE3,0x28,
0x06,0xA1,0xD5,0x8B,0xB7,0xC5,0xDA,0x76,0xF5,0x50,0xAA,0x3D,
0x8A,0x1F,0xBF,0xF0,0xEB,0x19,0xCC,0xB1,0xA3,0x13,0xD5,0x5C,
0xDA,0x56,0xC9,0xEC,0x2E,0xF2,0x96,0x32,0x38,0x7F,0xE8,0xD7,
0x6E,0x3C,0x04,0x68,0x04,0x3E,0x8F,0x66,0x3F,0x48,0x60,0xEE,
0x12,0xBF,0x2D,0x5B,0x0B,0x74,0x74,0xD6,0xE6,0x94,0xF9,0x1E,
0x6D,0xCC,0x40,0x24,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC3526_PRIME_6144,sizeof(RFC3526_PRIME_6144),bn);
}
/* "8192-bit MODP Group" from RFC3526, Section 7.
*
* The prime is: 2^8192 - 2^8128 - 1 + 2^64 * { [2^8062 pi] + 4743158 }
*
* RFC3526 specifies a generator of 2.
*/
BIGNUM *get_rfc3526_prime_8192(BIGNUM *bn)
{
static const unsigned char RFC3526_PRIME_8192[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAA,0xC4,0x2D,0xAD,0x33,0x17,0x0D,
0x04,0x50,0x7A,0x33,0xA8,0x55,0x21,0xAB,0xDF,0x1C,0xBA,0x64,
0xEC,0xFB,0x85,0x04,0x58,0xDB,0xEF,0x0A,0x8A,0xEA,0x71,0x57,
0x5D,0x06,0x0C,0x7D,0xB3,0x97,0x0F,0x85,0xA6,0xE1,0xE4,0xC7,
0xAB,0xF5,0xAE,0x8C,0xDB,0x09,0x33,0xD7,0x1E,0x8C,0x94,0xE0,
0x4A,0x25,0x61,0x9D,0xCE,0xE3,0xD2,0x26,0x1A,0xD2,0xEE,0x6B,
0xF1,0x2F,0xFA,0x06,0xD9,0x8A,0x08,0x64,0xD8,0x76,0x02,0x73,
0x3E,0xC8,0x6A,0x64,0x52,0x1F,0x2B,0x18,0x17,0x7B,0x20,0x0C,
0xBB,0xE1,0x17,0x57,0x7A,0x61,0x5D,0x6C,0x77,0x09,0x88,0xC0,
0xBA,0xD9,0x46,0xE2,0x08,0xE2,0x4F,0xA0,0x74,0xE5,0xAB,0x31,
0x43,0xDB,0x5B,0xFC,0xE0,0xFD,0x10,0x8E,0x4B,0x82,0xD1,0x20,
0xA9,0x21,0x08,0x01,0x1A,0x72,0x3C,0x12,0xA7,0x87,0xE6,0xD7,
0x88,0x71,0x9A,0x10,0xBD,0xBA,0x5B,0x26,0x99,0xC3,0x27,0x18,
0x6A,0xF4,0xE2,0x3C,0x1A,0x94,0x68,0x34,0xB6,0x15,0x0B,0xDA,
0x25,0x83,0xE9,0xCA,0x2A,0xD4,0x4C,0xE8,0xDB,0xBB,0xC2,0xDB,
0x04,0xDE,0x8E,0xF9,0x2E,0x8E,0xFC,0x14,0x1F,0xBE,0xCA,0xA6,
0x28,0x7C,0x59,0x47,0x4E,0x6B,0xC0,0x5D,0x99,0xB2,0x96,0x4F,
0xA0,0x90,0xC3,0xA2,0x23,0x3B,0xA1,0x86,0x51,0x5B,0xE7,0xED,
0x1F,0x61,0x29,0x70,0xCE,0xE2,0xD7,0xAF,0xB8,0x1B,0xDD,0x76,
0x21,0x70,0x48,0x1C,0xD0,0x06,0x91,0x27,0xD5,0xB0,0x5A,0xA9,
0x93,0xB4,0xEA,0x98,0x8D,0x8F,0xDD,0xC1,0x86,0xFF,0xB7,0xDC,
0x90,0xA6,0xC0,0x8F,0x4D,0xF4,0x35,0xC9,0x34,0x02,0x84,0x92,
0x36,0xC3,0xFA,0xB4,0xD2,0x7C,0x70,0x26,0xC1,0xD4,0xDC,0xB2,
0x60,0x26,0x46,0xDE,0xC9,0x75,0x1E,0x76,0x3D,0xBA,0x37,0xBD,
0xF8,0xFF,0x94,0x06,0xAD,0x9E,0x53,0x0E,0xE5,0xDB,0x38,0x2F,
0x41,0x30,0x01,0xAE,0xB0,0x6A,0x53,0xED,0x90,0x27,0xD8,0x31,
0x17,0x97,0x27,0xB0,0x86,0x5A,0x89,0x18,0xDA,0x3E,0xDB,0xEB,
0xCF,0x9B,0x14,0xED,0x44,0xCE,0x6C,0xBA,0xCE,0xD4,0xBB,0x1B,
0xDB,0x7F,0x14,0x47,0xE6,0xCC,0x25,0x4B,0x33,0x20,0x51,0x51,
0x2B,0xD7,0xAF,0x42,0x6F,0xB8,0xF4,0x01,0x37,0x8C,0xD2,0xBF,
0x59,0x83,0xCA,0x01,0xC6,0x4B,0x92,0xEC,0xF0,0x32,0xEA,0x15,
0xD1,0x72,0x1D,0x03,0xF4,0x82,0xD7,0xCE,0x6E,0x74,0xFE,0xF6,
0xD5,0x5E,0x70,0x2F,0x46,0x98,0x0C,0x82,0xB5,0xA8,0x40,0x31,
0x90,0x0B,0x1C,0x9E,0x59,0xE7,0xC9,0x7F,0xBE,0xC7,0xE8,0xF3,
0x23,0xA9,0x7A,0x7E,0x36,0xCC,0x88,0xBE,0x0F,0x1D,0x45,0xB7,
0xFF,0x58,0x5A,0xC5,0x4B,0xD4,0x07,0xB2,0x2B,0x41,0x54,0xAA,
0xCC,0x8F,0x6D,0x7E,0xBF,0x48,0xE1,0xD8,0x14,0xCC,0x5E,0xD2,
0x0F,0x80,0x37,0xE0,0xA7,0x97,0x15,0xEE,0xF2,0x9B,0xE3,0x28,
0x06,0xA1,0xD5,0x8B,0xB7,0xC5,0xDA,0x76,0xF5,0x50,0xAA,0x3D,
0x8A,0x1F,0xBF,0xF0,0xEB,0x19,0xCC,0xB1,0xA3,0x13,0xD5,0x5C,
0xDA,0x56,0xC9,0xEC,0x2E,0xF2,0x96,0x32,0x38,0x7F,0xE8,0xD7,
0x6E,0x3C,0x04,0x68,0x04,0x3E,0x8F,0x66,0x3F,0x48,0x60,0xEE,
0x12,0xBF,0x2D,0x5B,0x0B,0x74,0x74,0xD6,0xE6,0x94,0xF9,0x1E,
0x6D,0xBE,0x11,0x59,0x74,0xA3,0x92,0x6F,0x12,0xFE,0xE5,0xE4,
0x38,0x77,0x7C,0xB6,0xA9,0x32,0xDF,0x8C,0xD8,0xBE,0xC4,0xD0,
0x73,0xB9,0x31,0xBA,0x3B,0xC8,0x32,0xB6,0x8D,0x9D,0xD3,0x00,
0x74,0x1F,0xA7,0xBF,0x8A,0xFC,0x47,0xED,0x25,0x76,0xF6,0x93,
0x6B,0xA4,0x24,0x66,0x3A,0xAB,0x63,0x9C,0x5A,0xE4,0xF5,0x68,
0x34,0x23,0xB4,0x74,0x2B,0xF1,0xC9,0x78,0x23,0x8F,0x16,0xCB,
0xE3,0x9D,0x65,0x2D,0xE3,0xFD,0xB8,0xBE,0xFC,0x84,0x8A,0xD9,
0x22,0x22,0x2E,0x04,0xA4,0x03,0x7C,0x07,0x13,0xEB,0x57,0xA8,
0x1A,0x23,0xF0,0xC7,0x34,0x73,0xFC,0x64,0x6C,0xEA,0x30,0x6B,
0x4B,0xCB,0xC8,0x86,0x2F,0x83,0x85,0xDD,0xFA,0x9D,0x4B,0x7F,
0xA2,0xC0,0x87,0xE8,0x79,0x68,0x33,0x03,0xED,0x5B,0xDD,0x3A,
0x06,0x2B,0x3C,0xF5,0xB3,0xA2,0x78,0xA6,0x6D,0x2A,0x13,0xF8,
0x3F,0x44,0xF8,0x2D,0xDF,0x31,0x0E,0xE0,0x74,0xAB,0x6A,0x36,
0x45,0x97,0xE8,0x99,0xA0,0x25,0x5D,0xC1,0x64,0xF3,0x1C,0xC5,
0x08,0x46,0x85,0x1D,0xF9,0xAB,0x48,0x19,0x5D,0xED,0x7E,0xA1,
0xB1,0xD5,0x10,0xBD,0x7E,0xE7,0x4D,0x73,0xFA,0xF3,0x6B,0xC3,
0x1E,0xCF,0xA2,0x68,0x35,0x90,0x46,0xF4,0xEB,0x87,0x9F,0x92,
0x40,0x09,0x43,0x8B,0x48,0x1C,0x6C,0xD7,0x88,0x9A,0x00,0x2E,
0xD5,0xEE,0x38,0x2B,0xC9,0x19,0x0D,0xA6,0xFC,0x02,0x6E,0x47,
0x95,0x58,0xE4,0x47,0x56,0x77,0xE9,0xAA,0x9E,0x30,0x50,0xE2,
0x76,0x56,0x94,0xDF,0xC8,0x1F,0x56,0xE8,0x80,0xB9,0x6E,0x71,
0x60,0xC9,0x80,0xDD,0x98,0xED,0xD3,0xDF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,
};
return BN_bin2bn(RFC3526_PRIME_8192,sizeof(RFC3526_PRIME_8192),bn);
}

View file

@ -0,0 +1,454 @@
/* crypto/bn/bn_ctx.c */
/* Written by Ulf Moeller for the OpenSSL project. */
/* ====================================================================
* Copyright (c) 1998-2004 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#if !defined(BN_CTX_DEBUG) && !defined(BN_DEBUG)
#ifndef NDEBUG
#define NDEBUG
#endif
#endif
#include <stdio.h>
#include <assert.h>
#include "cryptlib.h"
#include "bn_lcl.h"
/* TODO list
*
* 1. Check a bunch of "(words+1)" type hacks in various bignum functions and
* check they can be safely removed.
* - Check +1 and other ugliness in BN_from_montgomery()
*
* 2. Consider allowing a BN_new_ex() that, at least, lets you specify an
* appropriate 'block' size that will be honoured by bn_expand_internal() to
* prevent piddly little reallocations. OTOH, profiling bignum expansions in
* BN_CTX doesn't show this to be a big issue.
*/
/* How many bignums are in each "pool item"; */
#define BN_CTX_POOL_SIZE 16
/* The stack frame info is resizing, set a first-time expansion size; */
#define BN_CTX_START_FRAMES 32
/***********/
/* BN_POOL */
/***********/
/* A bundle of bignums that can be linked with other bundles */
typedef struct bignum_pool_item
{
/* The bignum values */
BIGNUM vals[BN_CTX_POOL_SIZE];
/* Linked-list admin */
struct bignum_pool_item *prev, *next;
} BN_POOL_ITEM;
/* A linked-list of bignums grouped in bundles */
typedef struct bignum_pool
{
/* Linked-list admin */
BN_POOL_ITEM *head, *current, *tail;
/* Stack depth and allocation size */
unsigned used, size;
} BN_POOL;
static void BN_POOL_init(BN_POOL *);
static void BN_POOL_finish(BN_POOL *);
#ifndef OPENSSL_NO_DEPRECATED
static void BN_POOL_reset(BN_POOL *);
#endif
static BIGNUM * BN_POOL_get(BN_POOL *);
static void BN_POOL_release(BN_POOL *, unsigned int);
/************/
/* BN_STACK */
/************/
/* A wrapper to manage the "stack frames" */
typedef struct bignum_ctx_stack
{
/* Array of indexes into the bignum stack */
unsigned int *indexes;
/* Number of stack frames, and the size of the allocated array */
unsigned int depth, size;
} BN_STACK;
static void BN_STACK_init(BN_STACK *);
static void BN_STACK_finish(BN_STACK *);
#ifndef OPENSSL_NO_DEPRECATED
static void BN_STACK_reset(BN_STACK *);
#endif
static int BN_STACK_push(BN_STACK *, unsigned int);
static unsigned int BN_STACK_pop(BN_STACK *);
/**********/
/* BN_CTX */
/**********/
/* The opaque BN_CTX type */
struct bignum_ctx
{
/* The bignum bundles */
BN_POOL pool;
/* The "stack frames", if you will */
BN_STACK stack;
/* The number of bignums currently assigned */
unsigned int used;
/* Depth of stack overflow */
int err_stack;
/* Block "gets" until an "end" (compatibility behaviour) */
int too_many;
};
/* Enable this to find BN_CTX bugs */
#ifdef BN_CTX_DEBUG
static const char *ctxdbg_cur = NULL;
static void ctxdbg(BN_CTX *ctx)
{
unsigned int bnidx = 0, fpidx = 0;
BN_POOL_ITEM *item = ctx->pool.head;
BN_STACK *stack = &ctx->stack;
fprintf(stderr,"(%08x): ", (unsigned int)ctx);
while(bnidx < ctx->used)
{
fprintf(stderr,"%03x ", item->vals[bnidx++ % BN_CTX_POOL_SIZE].dmax);
if(!(bnidx % BN_CTX_POOL_SIZE))
item = item->next;
}
fprintf(stderr,"\n");
bnidx = 0;
fprintf(stderr," : ");
while(fpidx < stack->depth)
{
while(bnidx++ < stack->indexes[fpidx])
fprintf(stderr," ");
fprintf(stderr,"^^^ ");
bnidx++;
fpidx++;
}
fprintf(stderr,"\n");
}
#define CTXDBG_ENTRY(str, ctx) do { \
ctxdbg_cur = (str); \
fprintf(stderr,"Starting %s\n", ctxdbg_cur); \
ctxdbg(ctx); \
} while(0)
#define CTXDBG_EXIT(ctx) do { \
fprintf(stderr,"Ending %s\n", ctxdbg_cur); \
ctxdbg(ctx); \
} while(0)
#define CTXDBG_RET(ctx,ret)
#else
#define CTXDBG_ENTRY(str, ctx)
#define CTXDBG_EXIT(ctx)
#define CTXDBG_RET(ctx,ret)
#endif
/* This function is an evil legacy and should not be used. This implementation
* is WYSIWYG, though I've done my best. */
#ifndef OPENSSL_NO_DEPRECATED
void BN_CTX_init(BN_CTX *ctx)
{
/* Assume the caller obtained the context via BN_CTX_new() and so is
* trying to reset it for use. Nothing else makes sense, least of all
* binary compatibility from a time when they could declare a static
* variable. */
BN_POOL_reset(&ctx->pool);
BN_STACK_reset(&ctx->stack);
ctx->used = 0;
ctx->err_stack = 0;
ctx->too_many = 0;
}
#endif
BN_CTX *BN_CTX_new(void)
{
BN_CTX *ret = OPENSSL_malloc(sizeof(BN_CTX));
if(!ret)
{
BNerr(BN_F_BN_CTX_NEW,ERR_R_MALLOC_FAILURE);
return NULL;
}
/* Initialise the structure */
BN_POOL_init(&ret->pool);
BN_STACK_init(&ret->stack);
ret->used = 0;
ret->err_stack = 0;
ret->too_many = 0;
return ret;
}
void BN_CTX_free(BN_CTX *ctx)
{
if (ctx == NULL)
return;
#ifdef BN_CTX_DEBUG
{
BN_POOL_ITEM *pool = ctx->pool.head;
fprintf(stderr,"BN_CTX_free, stack-size=%d, pool-bignums=%d\n",
ctx->stack.size, ctx->pool.size);
fprintf(stderr,"dmaxs: ");
while(pool) {
unsigned loop = 0;
while(loop < BN_CTX_POOL_SIZE)
fprintf(stderr,"%02x ", pool->vals[loop++].dmax);
pool = pool->next;
}
fprintf(stderr,"\n");
}
#endif
BN_STACK_finish(&ctx->stack);
BN_POOL_finish(&ctx->pool);
OPENSSL_free(ctx);
}
void BN_CTX_start(BN_CTX *ctx)
{
CTXDBG_ENTRY("BN_CTX_start", ctx);
/* If we're already overflowing ... */
if(ctx->err_stack || ctx->too_many)
ctx->err_stack++;
/* (Try to) get a new frame pointer */
else if(!BN_STACK_push(&ctx->stack, ctx->used))
{
BNerr(BN_F_BN_CTX_START,BN_R_TOO_MANY_TEMPORARY_VARIABLES);
ctx->err_stack++;
}
CTXDBG_EXIT(ctx);
}
void BN_CTX_end(BN_CTX *ctx)
{
CTXDBG_ENTRY("BN_CTX_end", ctx);
if(ctx->err_stack)
ctx->err_stack--;
else
{
unsigned int fp = BN_STACK_pop(&ctx->stack);
/* Does this stack frame have anything to release? */
if(fp < ctx->used)
BN_POOL_release(&ctx->pool, ctx->used - fp);
ctx->used = fp;
/* Unjam "too_many" in case "get" had failed */
ctx->too_many = 0;
}
CTXDBG_EXIT(ctx);
}
BIGNUM *BN_CTX_get(BN_CTX *ctx)
{
BIGNUM *ret;
CTXDBG_ENTRY("BN_CTX_get", ctx);
if(ctx->err_stack || ctx->too_many) return NULL;
if((ret = BN_POOL_get(&ctx->pool)) == NULL)
{
/* Setting too_many prevents repeated "get" attempts from
* cluttering the error stack. */
ctx->too_many = 1;
BNerr(BN_F_BN_CTX_GET,BN_R_TOO_MANY_TEMPORARY_VARIABLES);
return NULL;
}
/* OK, make sure the returned bignum is "zero" */
BN_zero(ret);
ctx->used++;
CTXDBG_RET(ctx, ret);
return ret;
}
/************/
/* BN_STACK */
/************/
static void BN_STACK_init(BN_STACK *st)
{
st->indexes = NULL;
st->depth = st->size = 0;
}
static void BN_STACK_finish(BN_STACK *st)
{
if(st->size) OPENSSL_free(st->indexes);
}
#ifndef OPENSSL_NO_DEPRECATED
static void BN_STACK_reset(BN_STACK *st)
{
st->depth = 0;
}
#endif
static int BN_STACK_push(BN_STACK *st, unsigned int idx)
{
if(st->depth == st->size)
/* Need to expand */
{
unsigned int newsize = (st->size ?
(st->size * 3 / 2) : BN_CTX_START_FRAMES);
unsigned int *newitems = OPENSSL_malloc(newsize *
sizeof(unsigned int));
if(!newitems) return 0;
if(st->depth)
memcpy(newitems, st->indexes, st->depth *
sizeof(unsigned int));
if(st->size) OPENSSL_free(st->indexes);
st->indexes = newitems;
st->size = newsize;
}
st->indexes[(st->depth)++] = idx;
return 1;
}
static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
}
/***********/
/* BN_POOL */
/***********/
static void BN_POOL_init(BN_POOL *p)
{
p->head = p->current = p->tail = NULL;
p->used = p->size = 0;
}
static void BN_POOL_finish(BN_POOL *p)
{
while(p->head)
{
unsigned int loop = 0;
BIGNUM *bn = p->head->vals;
while(loop++ < BN_CTX_POOL_SIZE)
{
if(bn->d) BN_clear_free(bn);
bn++;
}
p->current = p->head->next;
OPENSSL_free(p->head);
p->head = p->current;
}
}
#ifndef OPENSSL_NO_DEPRECATED
static void BN_POOL_reset(BN_POOL *p)
{
BN_POOL_ITEM *item = p->head;
while(item)
{
unsigned int loop = 0;
BIGNUM *bn = item->vals;
while(loop++ < BN_CTX_POOL_SIZE)
{
if(bn->d) BN_clear(bn);
bn++;
}
item = item->next;
}
p->current = p->head;
p->used = 0;
}
#endif
static BIGNUM *BN_POOL_get(BN_POOL *p)
{
if(p->used == p->size)
{
BIGNUM *bn;
unsigned int loop = 0;
BN_POOL_ITEM *item = OPENSSL_malloc(sizeof(BN_POOL_ITEM));
if(!item) return NULL;
/* Initialise the structure */
bn = item->vals;
while(loop++ < BN_CTX_POOL_SIZE)
BN_init(bn++);
item->prev = p->tail;
item->next = NULL;
/* Link it in */
if(!p->head)
p->head = p->current = p->tail = item;
else
{
p->tail->next = item;
p->tail = item;
p->current = item;
}
p->size += BN_CTX_POOL_SIZE;
p->used++;
/* Return the first bignum from the new pool */
return item->vals;
}
if(!p->used)
p->current = p->head;
else if((p->used % BN_CTX_POOL_SIZE) == 0)
p->current = p->current->next;
return p->current->vals + ((p->used++) % BN_CTX_POOL_SIZE);
}
static void BN_POOL_release(BN_POOL *p, unsigned int num)
{
unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
p->used -= num;
while(num--)
{
bn_check_top(p->current->vals + offset);
if(!offset)
{
offset = BN_CTX_POOL_SIZE - 1;
p->current = p->current->prev;
}
else
offset--;
}
}

View file

@ -0,0 +1,112 @@
/* crypto/bn/bn_depr.c */
/* ====================================================================
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* Support for deprecated functions goes here - static linkage will only slurp
* this code if applications are using them directly. */
#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include "bn_lcl.h"
#include <openssl/rand.h>
static void *dummy=&dummy;
#ifndef OPENSSL_NO_DEPRECATED
BIGNUM *BN_generate_prime(BIGNUM *ret, int bits, int safe,
const BIGNUM *add, const BIGNUM *rem,
void (*callback)(int,int,void *), void *cb_arg)
{
BN_GENCB cb;
BIGNUM *rnd=NULL;
int found = 0;
BN_GENCB_set_old(&cb, callback, cb_arg);
if (ret == NULL)
{
if ((rnd=BN_new()) == NULL) goto err;
}
else
rnd=ret;
if(!BN_generate_prime_ex(rnd, bits, safe, add, rem, &cb))
goto err;
/* we have a prime :-) */
found = 1;
err:
if (!found && (ret == NULL) && (rnd != NULL)) BN_free(rnd);
return(found ? rnd : NULL);
}
int BN_is_prime(const BIGNUM *a, int checks, void (*callback)(int,int,void *),
BN_CTX *ctx_passed, void *cb_arg)
{
BN_GENCB cb;
BN_GENCB_set_old(&cb, callback, cb_arg);
return BN_is_prime_ex(a, checks, ctx_passed, &cb);
}
int BN_is_prime_fasttest(const BIGNUM *a, int checks,
void (*callback)(int,int,void *),
BN_CTX *ctx_passed, void *cb_arg,
int do_trial_division)
{
BN_GENCB cb;
BN_GENCB_set_old(&cb, callback, cb_arg);
return BN_is_prime_fasttest_ex(a, checks, ctx_passed,
do_trial_division, &cb);
}
#endif

View file

@ -0,0 +1,650 @@
/* crypto/bn/bn_div.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <openssl/bn.h>
#include "cryptlib.h"
#include "bn_lcl.h"
/* The old slow way */
#if 0
int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
BN_CTX *ctx)
{
int i,nm,nd;
int ret = 0;
BIGNUM *D;
bn_check_top(m);
bn_check_top(d);
if (BN_is_zero(d))
{
BNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);
return(0);
}
if (BN_ucmp(m,d) < 0)
{
if (rem != NULL)
{ if (BN_copy(rem,m) == NULL) return(0); }
if (dv != NULL) BN_zero(dv);
return(1);
}
BN_CTX_start(ctx);
D = BN_CTX_get(ctx);
if (dv == NULL) dv = BN_CTX_get(ctx);
if (rem == NULL) rem = BN_CTX_get(ctx);
if (D == NULL || dv == NULL || rem == NULL)
goto end;
nd=BN_num_bits(d);
nm=BN_num_bits(m);
if (BN_copy(D,d) == NULL) goto end;
if (BN_copy(rem,m) == NULL) goto end;
/* The next 2 are needed so we can do a dv->d[0]|=1 later
* since BN_lshift1 will only work once there is a value :-) */
BN_zero(dv);
if(bn_wexpand(dv,1) == NULL) goto end;
dv->top=1;
if (!BN_lshift(D,D,nm-nd)) goto end;
for (i=nm-nd; i>=0; i--)
{
if (!BN_lshift1(dv,dv)) goto end;
if (BN_ucmp(rem,D) >= 0)
{
dv->d[0]|=1;
if (!BN_usub(rem,rem,D)) goto end;
}
/* CAN IMPROVE (and have now :=) */
if (!BN_rshift1(D,D)) goto end;
}
rem->neg=BN_is_zero(rem)?0:m->neg;
dv->neg=m->neg^d->neg;
ret = 1;
end:
BN_CTX_end(ctx);
return(ret);
}
#else
#if !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) \
&& !defined(PEDANTIC) && !defined(BN_DIV3W)
# if defined(__GNUC__) && __GNUC__>=2
# if defined(__i386) || defined (__i386__)
/*
* There were two reasons for implementing this template:
* - GNU C generates a call to a function (__udivdi3 to be exact)
* in reply to ((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0 (I fail to
* understand why...);
* - divl doesn't only calculate quotient, but also leaves
* remainder in %edx which we can definitely use here:-)
*
* <appro@fy.chalmers.se>
*/
# define bn_div_words(n0,n1,d0) \
({ asm volatile ( \
"divl %4" \
: "=a"(q), "=d"(rem) \
: "a"(n1), "d"(n0), "g"(d0) \
: "cc"); \
q; \
})
# define REMAINDER_IS_ALREADY_CALCULATED
# elif defined(__x86_64) && defined(SIXTY_FOUR_BIT_LONG)
/*
* Same story here, but it's 128-bit by 64-bit division. Wow!
* <appro@fy.chalmers.se>
*/
# define bn_div_words(n0,n1,d0) \
({ asm volatile ( \
"divq %4" \
: "=a"(q), "=d"(rem) \
: "a"(n1), "d"(n0), "g"(d0) \
: "cc"); \
q; \
})
# define REMAINDER_IS_ALREADY_CALCULATED
# endif /* __<cpu> */
# endif /* __GNUC__ */
#endif /* OPENSSL_NO_ASM */
/* BN_div[_no_branch] computes dv := num / divisor, rounding towards
* zero, and sets up rm such that dv*divisor + rm = num holds.
* Thus:
* dv->neg == num->neg ^ divisor->neg (unless the result is zero)
* rm->neg == num->neg (unless the remainder is zero)
* If 'dv' or 'rm' is NULL, the respective value is not returned.
*/
static int BN_div_no_branch(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,
const BIGNUM *divisor, BN_CTX *ctx);
int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
BN_CTX *ctx)
{
int norm_shift,i,loop;
BIGNUM *tmp,wnum,*snum,*sdiv,*res;
BN_ULONG *resp,*wnump;
BN_ULONG d0,d1;
int num_n,div_n;
/* Invalid zero-padding would have particularly bad consequences
* in the case of 'num', so don't just rely on bn_check_top() for this one
* (bn_check_top() works only for BN_DEBUG builds) */
if (num->top > 0 && num->d[num->top - 1] == 0)
{
BNerr(BN_F_BN_DIV,BN_R_NOT_INITIALIZED);
return 0;
}
bn_check_top(num);
if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0) || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0))
{
return BN_div_no_branch(dv, rm, num, divisor, ctx);
}
bn_check_top(dv);
bn_check_top(rm);
/* bn_check_top(num); */ /* 'num' has been checked already */
bn_check_top(divisor);
if (BN_is_zero(divisor))
{
BNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);
return(0);
}
if (BN_ucmp(num,divisor) < 0)
{
if (rm != NULL)
{ if (BN_copy(rm,num) == NULL) return(0); }
if (dv != NULL) BN_zero(dv);
return(1);
}
BN_CTX_start(ctx);
tmp=BN_CTX_get(ctx);
snum=BN_CTX_get(ctx);
sdiv=BN_CTX_get(ctx);
if (dv == NULL)
res=BN_CTX_get(ctx);
else res=dv;
if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)
goto err;
/* First we normalise the numbers */
norm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);
if (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;
sdiv->neg=0;
norm_shift+=BN_BITS2;
if (!(BN_lshift(snum,num,norm_shift))) goto err;
snum->neg=0;
div_n=sdiv->top;
num_n=snum->top;
loop=num_n-div_n;
/* Lets setup a 'window' into snum
* This is the part that corresponds to the current
* 'area' being divided */
wnum.neg = 0;
wnum.d = &(snum->d[loop]);
wnum.top = div_n;
/* only needed when BN_ucmp messes up the values between top and max */
wnum.dmax = snum->dmax - loop; /* so we don't step out of bounds */
/* Get the top 2 words of sdiv */
/* div_n=sdiv->top; */
d0=sdiv->d[div_n-1];
d1=(div_n == 1)?0:sdiv->d[div_n-2];
/* pointer to the 'top' of snum */
wnump= &(snum->d[num_n-1]);
/* Setup to 'res' */
res->neg= (num->neg^divisor->neg);
if (!bn_wexpand(res,(loop+1))) goto err;
res->top=loop;
resp= &(res->d[loop-1]);
/* space for temp */
if (!bn_wexpand(tmp,(div_n+1))) goto err;
if (BN_ucmp(&wnum,sdiv) >= 0)
{
/* If BN_DEBUG_RAND is defined BN_ucmp changes (via
* bn_pollute) the const bignum arguments =>
* clean the values between top and max again */
bn_clear_top2max(&wnum);
bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);
*resp=1;
}
else
res->top--;
/* if res->top == 0 then clear the neg value otherwise decrease
* the resp pointer */
if (res->top == 0)
res->neg = 0;
else
resp--;
for (i=0; i<loop-1; i++, wnump--, resp--)
{
BN_ULONG q,l0;
/* the first part of the loop uses the top two words of
* snum and sdiv to calculate a BN_ULONG q such that
* | wnum - sdiv * q | < sdiv */
#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)
BN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);
q=bn_div_3_words(wnump,d1,d0);
#else
BN_ULONG n0,n1,rem=0;
n0=wnump[0];
n1=wnump[-1];
if (n0 == d0)
q=BN_MASK2;
else /* n0 < d0 */
{
#ifdef BN_LLONG
BN_ULLONG t2;
#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)
q=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);
#else
q=bn_div_words(n0,n1,d0);
#ifdef BN_DEBUG_LEVITTE
fprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\
X) -> 0x%08X\n",
n0, n1, d0, q);
#endif
#endif
#ifndef REMAINDER_IS_ALREADY_CALCULATED
/*
* rem doesn't have to be BN_ULLONG. The least we
* know it's less that d0, isn't it?
*/
rem=(n1-q*d0)&BN_MASK2;
#endif
t2=(BN_ULLONG)d1*q;
for (;;)
{
if (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))
break;
q--;
rem += d0;
if (rem < d0) break; /* don't let rem overflow */
t2 -= d1;
}
#else /* !BN_LLONG */
BN_ULONG t2l,t2h;
q=bn_div_words(n0,n1,d0);
#ifdef BN_DEBUG_LEVITTE
fprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\
X) -> 0x%08X\n",
n0, n1, d0, q);
#endif
#ifndef REMAINDER_IS_ALREADY_CALCULATED
rem=(n1-q*d0)&BN_MASK2;
#endif
#if defined(BN_UMULT_LOHI)
BN_UMULT_LOHI(t2l,t2h,d1,q);
#elif defined(BN_UMULT_HIGH)
t2l = d1 * q;
t2h = BN_UMULT_HIGH(d1,q);
#else
{
BN_ULONG ql, qh;
t2l=LBITS(d1); t2h=HBITS(d1);
ql =LBITS(q); qh =HBITS(q);
mul64(t2l,t2h,ql,qh); /* t2=(BN_ULLONG)d1*q; */
}
#endif
for (;;)
{
if ((t2h < rem) ||
((t2h == rem) && (t2l <= wnump[-2])))
break;
q--;
rem += d0;
if (rem < d0) break; /* don't let rem overflow */
if (t2l < d1) t2h--; t2l -= d1;
}
#endif /* !BN_LLONG */
}
#endif /* !BN_DIV3W */
l0=bn_mul_words(tmp->d,sdiv->d,div_n,q);
tmp->d[div_n]=l0;
wnum.d--;
/* ingore top values of the bignums just sub the two
* BN_ULONG arrays with bn_sub_words */
if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))
{
/* Note: As we have considered only the leading
* two BN_ULONGs in the calculation of q, sdiv * q
* might be greater than wnum (but then (q-1) * sdiv
* is less or equal than wnum)
*/
q--;
if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))
/* we can't have an overflow here (assuming
* that q != 0, but if q == 0 then tmp is
* zero anyway) */
(*wnump)++;
}
/* store part of the result */
*resp = q;
}
bn_correct_top(snum);
if (rm != NULL)
{
/* Keep a copy of the neg flag in num because if rm==num
* BN_rshift() will overwrite it.
*/
int neg = num->neg;
BN_rshift(rm,snum,norm_shift);
if (!BN_is_zero(rm))
rm->neg = neg;
bn_check_top(rm);
}
BN_CTX_end(ctx);
return(1);
err:
bn_check_top(rm);
BN_CTX_end(ctx);
return(0);
}
/* BN_div_no_branch is a special version of BN_div. It does not contain
* branches that may leak sensitive information.
*/
static int BN_div_no_branch(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,
const BIGNUM *divisor, BN_CTX *ctx)
{
int norm_shift,i,loop;
BIGNUM *tmp,wnum,*snum,*sdiv,*res;
BN_ULONG *resp,*wnump;
BN_ULONG d0,d1;
int num_n,div_n;
bn_check_top(dv);
bn_check_top(rm);
/* bn_check_top(num); */ /* 'num' has been checked in BN_div() */
bn_check_top(divisor);
if (BN_is_zero(divisor))
{
BNerr(BN_F_BN_DIV_NO_BRANCH,BN_R_DIV_BY_ZERO);
return(0);
}
BN_CTX_start(ctx);
tmp=BN_CTX_get(ctx);
snum=BN_CTX_get(ctx);
sdiv=BN_CTX_get(ctx);
if (dv == NULL)
res=BN_CTX_get(ctx);
else res=dv;
if (sdiv == NULL || res == NULL) goto err;
/* First we normalise the numbers */
norm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);
if (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;
sdiv->neg=0;
norm_shift+=BN_BITS2;
if (!(BN_lshift(snum,num,norm_shift))) goto err;
snum->neg=0;
/* Since we don't know whether snum is larger than sdiv,
* we pad snum with enough zeroes without changing its
* value.
*/
if (snum->top <= sdiv->top+1)
{
if (bn_wexpand(snum, sdiv->top + 2) == NULL) goto err;
for (i = snum->top; i < sdiv->top + 2; i++) snum->d[i] = 0;
snum->top = sdiv->top + 2;
}
else
{
if (bn_wexpand(snum, snum->top + 1) == NULL) goto err;
snum->d[snum->top] = 0;
snum->top ++;
}
div_n=sdiv->top;
num_n=snum->top;
loop=num_n-div_n;
/* Lets setup a 'window' into snum
* This is the part that corresponds to the current
* 'area' being divided */
wnum.neg = 0;
wnum.d = &(snum->d[loop]);
wnum.top = div_n;
/* only needed when BN_ucmp messes up the values between top and max */
wnum.dmax = snum->dmax - loop; /* so we don't step out of bounds */
/* Get the top 2 words of sdiv */
/* div_n=sdiv->top; */
d0=sdiv->d[div_n-1];
d1=(div_n == 1)?0:sdiv->d[div_n-2];
/* pointer to the 'top' of snum */
wnump= &(snum->d[num_n-1]);
/* Setup to 'res' */
res->neg= (num->neg^divisor->neg);
if (!bn_wexpand(res,(loop+1))) goto err;
res->top=loop-1;
resp= &(res->d[loop-1]);
/* space for temp */
if (!bn_wexpand(tmp,(div_n+1))) goto err;
/* if res->top == 0 then clear the neg value otherwise decrease
* the resp pointer */
if (res->top == 0)
res->neg = 0;
else
resp--;
for (i=0; i<loop-1; i++, wnump--, resp--)
{
BN_ULONG q,l0;
/* the first part of the loop uses the top two words of
* snum and sdiv to calculate a BN_ULONG q such that
* | wnum - sdiv * q | < sdiv */
#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)
BN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);
q=bn_div_3_words(wnump,d1,d0);
#else
BN_ULONG n0,n1,rem=0;
n0=wnump[0];
n1=wnump[-1];
if (n0 == d0)
q=BN_MASK2;
else /* n0 < d0 */
{
#ifdef BN_LLONG
BN_ULLONG t2;
#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)
q=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);
#else
q=bn_div_words(n0,n1,d0);
#ifdef BN_DEBUG_LEVITTE
fprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\
X) -> 0x%08X\n",
n0, n1, d0, q);
#endif
#endif
#ifndef REMAINDER_IS_ALREADY_CALCULATED
/*
* rem doesn't have to be BN_ULLONG. The least we
* know it's less that d0, isn't it?
*/
rem=(n1-q*d0)&BN_MASK2;
#endif
t2=(BN_ULLONG)d1*q;
for (;;)
{
if (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))
break;
q--;
rem += d0;
if (rem < d0) break; /* don't let rem overflow */
t2 -= d1;
}
#else /* !BN_LLONG */
BN_ULONG t2l,t2h;
q=bn_div_words(n0,n1,d0);
#ifdef BN_DEBUG_LEVITTE
fprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\
X) -> 0x%08X\n",
n0, n1, d0, q);
#endif
#ifndef REMAINDER_IS_ALREADY_CALCULATED
rem=(n1-q*d0)&BN_MASK2;
#endif
#if defined(BN_UMULT_LOHI)
BN_UMULT_LOHI(t2l,t2h,d1,q);
#elif defined(BN_UMULT_HIGH)
t2l = d1 * q;
t2h = BN_UMULT_HIGH(d1,q);
#else
{
BN_ULONG ql, qh;
t2l=LBITS(d1); t2h=HBITS(d1);
ql =LBITS(q); qh =HBITS(q);
mul64(t2l,t2h,ql,qh); /* t2=(BN_ULLONG)d1*q; */
}
#endif
for (;;)
{
if ((t2h < rem) ||
((t2h == rem) && (t2l <= wnump[-2])))
break;
q--;
rem += d0;
if (rem < d0) break; /* don't let rem overflow */
if (t2l < d1) t2h--; t2l -= d1;
}
#endif /* !BN_LLONG */
}
#endif /* !BN_DIV3W */
l0=bn_mul_words(tmp->d,sdiv->d,div_n,q);
tmp->d[div_n]=l0;
wnum.d--;
/* ingore top values of the bignums just sub the two
* BN_ULONG arrays with bn_sub_words */
if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))
{
/* Note: As we have considered only the leading
* two BN_ULONGs in the calculation of q, sdiv * q
* might be greater than wnum (but then (q-1) * sdiv
* is less or equal than wnum)
*/
q--;
if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))
/* we can't have an overflow here (assuming
* that q != 0, but if q == 0 then tmp is
* zero anyway) */
(*wnump)++;
}
/* store part of the result */
*resp = q;
}
bn_correct_top(snum);
if (rm != NULL)
{
/* Keep a copy of the neg flag in num because if rm==num
* BN_rshift() will overwrite it.
*/
int neg = num->neg;
BN_rshift(rm,snum,norm_shift);
if (!BN_is_zero(rm))
rm->neg = neg;
bn_check_top(rm);
}
bn_correct_top(res);
BN_CTX_end(ctx);
return(1);
err:
bn_check_top(rm);
BN_CTX_end(ctx);
return(0);
}
#endif

View file

@ -0,0 +1,150 @@
/* crypto/bn/bn_err.c */
/* ====================================================================
* Copyright (c) 1999-2007 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* NOTE: this file was auto generated by the mkerr.pl script: any changes
* made to it will be overwritten when the script next updates this file,
* only reason strings will be preserved.
*/
#include <stdio.h>
#include <openssl/err.h>
#include <openssl/bn.h>
/* BEGIN ERROR CODES */
#ifndef OPENSSL_NO_ERR
#define ERR_FUNC(func) ERR_PACK(ERR_LIB_BN,func,0)
#define ERR_REASON(reason) ERR_PACK(ERR_LIB_BN,0,reason)
static ERR_STRING_DATA BN_str_functs[]=
{
{ERR_FUNC(BN_F_BNRAND), "BNRAND"},
{ERR_FUNC(BN_F_BN_BLINDING_CONVERT_EX), "BN_BLINDING_convert_ex"},
{ERR_FUNC(BN_F_BN_BLINDING_CREATE_PARAM), "BN_BLINDING_create_param"},
{ERR_FUNC(BN_F_BN_BLINDING_INVERT_EX), "BN_BLINDING_invert_ex"},
{ERR_FUNC(BN_F_BN_BLINDING_NEW), "BN_BLINDING_new"},
{ERR_FUNC(BN_F_BN_BLINDING_UPDATE), "BN_BLINDING_update"},
{ERR_FUNC(BN_F_BN_BN2DEC), "BN_bn2dec"},
{ERR_FUNC(BN_F_BN_BN2HEX), "BN_bn2hex"},
{ERR_FUNC(BN_F_BN_CTX_GET), "BN_CTX_get"},
{ERR_FUNC(BN_F_BN_CTX_NEW), "BN_CTX_new"},
{ERR_FUNC(BN_F_BN_CTX_START), "BN_CTX_start"},
{ERR_FUNC(BN_F_BN_DIV), "BN_div"},
{ERR_FUNC(BN_F_BN_DIV_NO_BRANCH), "BN_div_no_branch"},
{ERR_FUNC(BN_F_BN_DIV_RECP), "BN_div_recp"},
{ERR_FUNC(BN_F_BN_EXP), "BN_exp"},
{ERR_FUNC(BN_F_BN_EXPAND2), "bn_expand2"},
{ERR_FUNC(BN_F_BN_EXPAND_INTERNAL), "BN_EXPAND_INTERNAL"},
{ERR_FUNC(BN_F_BN_GF2M_MOD), "BN_GF2m_mod"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_EXP), "BN_GF2m_mod_exp"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_MUL), "BN_GF2m_mod_mul"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SOLVE_QUAD), "BN_GF2m_mod_solve_quad"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SOLVE_QUAD_ARR), "BN_GF2m_mod_solve_quad_arr"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SQR), "BN_GF2m_mod_sqr"},
{ERR_FUNC(BN_F_BN_GF2M_MOD_SQRT), "BN_GF2m_mod_sqrt"},
{ERR_FUNC(BN_F_BN_MOD_EXP2_MONT), "BN_mod_exp2_mont"},
{ERR_FUNC(BN_F_BN_MOD_EXP_MONT), "BN_mod_exp_mont"},
{ERR_FUNC(BN_F_BN_MOD_EXP_MONT_CONSTTIME), "BN_mod_exp_mont_consttime"},
{ERR_FUNC(BN_F_BN_MOD_EXP_MONT_WORD), "BN_mod_exp_mont_word"},
{ERR_FUNC(BN_F_BN_MOD_EXP_RECP), "BN_mod_exp_recp"},
{ERR_FUNC(BN_F_BN_MOD_EXP_SIMPLE), "BN_mod_exp_simple"},
{ERR_FUNC(BN_F_BN_MOD_INVERSE), "BN_mod_inverse"},
{ERR_FUNC(BN_F_BN_MOD_INVERSE_NO_BRANCH), "BN_mod_inverse_no_branch"},
{ERR_FUNC(BN_F_BN_MOD_LSHIFT_QUICK), "BN_mod_lshift_quick"},
{ERR_FUNC(BN_F_BN_MOD_MUL_RECIPROCAL), "BN_mod_mul_reciprocal"},
{ERR_FUNC(BN_F_BN_MOD_SQRT), "BN_mod_sqrt"},
{ERR_FUNC(BN_F_BN_MPI2BN), "BN_mpi2bn"},
{ERR_FUNC(BN_F_BN_NEW), "BN_new"},
{ERR_FUNC(BN_F_BN_RAND), "BN_rand"},
{ERR_FUNC(BN_F_BN_RAND_RANGE), "BN_rand_range"},
{ERR_FUNC(BN_F_BN_USUB), "BN_usub"},
{0,NULL}
};
static ERR_STRING_DATA BN_str_reasons[]=
{
{ERR_REASON(BN_R_ARG2_LT_ARG3) ,"arg2 lt arg3"},
{ERR_REASON(BN_R_BAD_RECIPROCAL) ,"bad reciprocal"},
{ERR_REASON(BN_R_BIGNUM_TOO_LONG) ,"bignum too long"},
{ERR_REASON(BN_R_CALLED_WITH_EVEN_MODULUS),"called with even modulus"},
{ERR_REASON(BN_R_DIV_BY_ZERO) ,"div by zero"},
{ERR_REASON(BN_R_ENCODING_ERROR) ,"encoding error"},
{ERR_REASON(BN_R_EXPAND_ON_STATIC_BIGNUM_DATA),"expand on static bignum data"},
{ERR_REASON(BN_R_INPUT_NOT_REDUCED) ,"input not reduced"},
{ERR_REASON(BN_R_INVALID_LENGTH) ,"invalid length"},
{ERR_REASON(BN_R_INVALID_RANGE) ,"invalid range"},
{ERR_REASON(BN_R_NOT_A_SQUARE) ,"not a square"},
{ERR_REASON(BN_R_NOT_INITIALIZED) ,"not initialized"},
{ERR_REASON(BN_R_NO_INVERSE) ,"no inverse"},
{ERR_REASON(BN_R_NO_SOLUTION) ,"no solution"},
{ERR_REASON(BN_R_P_IS_NOT_PRIME) ,"p is not prime"},
{ERR_REASON(BN_R_TOO_MANY_ITERATIONS) ,"too many iterations"},
{ERR_REASON(BN_R_TOO_MANY_TEMPORARY_VARIABLES),"too many temporary variables"},
{0,NULL}
};
#endif
void ERR_load_BN_strings(void)
{
#ifndef OPENSSL_NO_ERR
if (ERR_func_error_string(BN_str_functs[0].error) == NULL)
{
ERR_load_strings(0,BN_str_functs);
ERR_load_strings(0,BN_str_reasons);
}
#endif
}

View file

@ -0,0 +1,991 @@
/* crypto/bn/bn_exp.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include "cryptlib.h"
#include "bn_lcl.h"
/* maximum precomputation table size for *variable* sliding windows */
#define TABLE_SIZE 32
/* this one works - simple but works */
int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
{
int i,bits,ret=0;
BIGNUM *v,*rr;
if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0)
{
/* BN_FLG_CONSTTIME only supported by BN_mod_exp_mont() */
BNerr(BN_F_BN_EXP,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return -1;
}
BN_CTX_start(ctx);
if ((r == a) || (r == p))
rr = BN_CTX_get(ctx);
else
rr = r;
v = BN_CTX_get(ctx);
if (rr == NULL || v == NULL) goto err;
if (BN_copy(v,a) == NULL) goto err;
bits=BN_num_bits(p);
if (BN_is_odd(p))
{ if (BN_copy(rr,a) == NULL) goto err; }
else { if (!BN_one(rr)) goto err; }
for (i=1; i<bits; i++)
{
if (!BN_sqr(v,v,ctx)) goto err;
if (BN_is_bit_set(p,i))
{
if (!BN_mul(rr,rr,v,ctx)) goto err;
}
}
ret=1;
err:
if (r != rr) BN_copy(r,rr);
BN_CTX_end(ctx);
bn_check_top(r);
return(ret);
}
int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
BN_CTX *ctx)
{
int ret;
bn_check_top(a);
bn_check_top(p);
bn_check_top(m);
/* For even modulus m = 2^k*m_odd, it might make sense to compute
* a^p mod m_odd and a^p mod 2^k separately (with Montgomery
* exponentiation for the odd part), using appropriate exponent
* reductions, and combine the results using the CRT.
*
* For now, we use Montgomery only if the modulus is odd; otherwise,
* exponentiation using the reciprocal-based quick remaindering
* algorithm is used.
*
* (Timing obtained with expspeed.c [computations a^p mod m
* where a, p, m are of the same length: 256, 512, 1024, 2048,
* 4096, 8192 bits], compared to the running time of the
* standard algorithm:
*
* BN_mod_exp_mont 33 .. 40 % [AMD K6-2, Linux, debug configuration]
* 55 .. 77 % [UltraSparc processor, but
* debug-solaris-sparcv8-gcc conf.]
*
* BN_mod_exp_recp 50 .. 70 % [AMD K6-2, Linux, debug configuration]
* 62 .. 118 % [UltraSparc, debug-solaris-sparcv8-gcc]
*
* On the Sparc, BN_mod_exp_recp was faster than BN_mod_exp_mont
* at 2048 and more bits, but at 512 and 1024 bits, it was
* slower even than the standard algorithm!
*
* "Real" timings [linux-elf, solaris-sparcv9-gcc configurations]
* should be obtained when the new Montgomery reduction code
* has been integrated into OpenSSL.)
*/
#define MONT_MUL_MOD
#define MONT_EXP_WORD
#define RECP_MUL_MOD
#ifdef MONT_MUL_MOD
/* I have finally been able to take out this pre-condition of
* the top bit being set. It was caused by an error in BN_div
* with negatives. There was also another problem when for a^b%m
* a >= m. eay 07-May-97 */
/* if ((m->d[m->top-1]&BN_TBIT) && BN_is_odd(m)) */
if (BN_is_odd(m))
{
# ifdef MONT_EXP_WORD
if (a->top == 1 && !a->neg && (BN_get_flags(p, BN_FLG_CONSTTIME) == 0))
{
BN_ULONG A = a->d[0];
ret=BN_mod_exp_mont_word(r,A,p,m,ctx,NULL);
}
else
# endif
ret=BN_mod_exp_mont(r,a,p,m,ctx,NULL);
}
else
#endif
#ifdef RECP_MUL_MOD
{ ret=BN_mod_exp_recp(r,a,p,m,ctx); }
#else
{ ret=BN_mod_exp_simple(r,a,p,m,ctx); }
#endif
bn_check_top(r);
return(ret);
}
int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx)
{
int i,j,bits,ret=0,wstart,wend,window,wvalue;
int start=1;
BIGNUM *aa;
/* Table of variables obtained from 'ctx' */
BIGNUM *val[TABLE_SIZE];
BN_RECP_CTX recp;
if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0)
{
/* BN_FLG_CONSTTIME only supported by BN_mod_exp_mont() */
BNerr(BN_F_BN_MOD_EXP_RECP,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return -1;
}
bits=BN_num_bits(p);
if (bits == 0)
{
ret = BN_one(r);
return ret;
}
BN_CTX_start(ctx);
aa = BN_CTX_get(ctx);
val[0] = BN_CTX_get(ctx);
if(!aa || !val[0]) goto err;
BN_RECP_CTX_init(&recp);
if (m->neg)
{
/* ignore sign of 'm' */
if (!BN_copy(aa, m)) goto err;
aa->neg = 0;
if (BN_RECP_CTX_set(&recp,aa,ctx) <= 0) goto err;
}
else
{
if (BN_RECP_CTX_set(&recp,m,ctx) <= 0) goto err;
}
if (!BN_nnmod(val[0],a,m,ctx)) goto err; /* 1 */
if (BN_is_zero(val[0]))
{
BN_zero(r);
ret = 1;
goto err;
}
window = BN_window_bits_for_exponent_size(bits);
if (window > 1)
{
if (!BN_mod_mul_reciprocal(aa,val[0],val[0],&recp,ctx))
goto err; /* 2 */
j=1<<(window-1);
for (i=1; i<j; i++)
{
if(((val[i] = BN_CTX_get(ctx)) == NULL) ||
!BN_mod_mul_reciprocal(val[i],val[i-1],
aa,&recp,ctx))
goto err;
}
}
start=1; /* This is used to avoid multiplication etc
* when there is only the value '1' in the
* buffer. */
wvalue=0; /* The 'value' of the window */
wstart=bits-1; /* The top bit of the window */
wend=0; /* The bottom bit of the window */
if (!BN_one(r)) goto err;
for (;;)
{
if (BN_is_bit_set(p,wstart) == 0)
{
if (!start)
if (!BN_mod_mul_reciprocal(r,r,r,&recp,ctx))
goto err;
if (wstart == 0) break;
wstart--;
continue;
}
/* We now have wstart on a 'set' bit, we now need to work out
* how bit a window to do. To do this we need to scan
* forward until the last set bit before the end of the
* window */
j=wstart;
wvalue=1;
wend=0;
for (i=1; i<window; i++)
{
if (wstart-i < 0) break;
if (BN_is_bit_set(p,wstart-i))
{
wvalue<<=(i-wend);
wvalue|=1;
wend=i;
}
}
/* wend is the size of the current window */
j=wend+1;
/* add the 'bytes above' */
if (!start)
for (i=0; i<j; i++)
{
if (!BN_mod_mul_reciprocal(r,r,r,&recp,ctx))
goto err;
}
/* wvalue will be an odd number < 2^window */
if (!BN_mod_mul_reciprocal(r,r,val[wvalue>>1],&recp,ctx))
goto err;
/* move the 'window' down further */
wstart-=wend+1;
wvalue=0;
start=0;
if (wstart < 0) break;
}
ret=1;
err:
BN_CTX_end(ctx);
BN_RECP_CTX_free(&recp);
bn_check_top(r);
return(ret);
}
int BN_mod_exp_mont(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
{
int i,j,bits,ret=0,wstart,wend,window,wvalue;
int start=1;
BIGNUM *d,*r;
const BIGNUM *aa;
/* Table of variables obtained from 'ctx' */
BIGNUM *val[TABLE_SIZE];
BN_MONT_CTX *mont=NULL;
if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0)
{
return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);
}
bn_check_top(a);
bn_check_top(p);
bn_check_top(m);
if (!BN_is_odd(m))
{
BNerr(BN_F_BN_MOD_EXP_MONT,BN_R_CALLED_WITH_EVEN_MODULUS);
return(0);
}
bits=BN_num_bits(p);
if (bits == 0)
{
ret = BN_one(rr);
return ret;
}
BN_CTX_start(ctx);
d = BN_CTX_get(ctx);
r = BN_CTX_get(ctx);
val[0] = BN_CTX_get(ctx);
if (!d || !r || !val[0]) goto err;
/* If this is not done, things will break in the montgomery
* part */
if (in_mont != NULL)
mont=in_mont;
else
{
if ((mont=BN_MONT_CTX_new()) == NULL) goto err;
if (!BN_MONT_CTX_set(mont,m,ctx)) goto err;
}
if (a->neg || BN_ucmp(a,m) >= 0)
{
if (!BN_nnmod(val[0],a,m,ctx))
goto err;
aa= val[0];
}
else
aa=a;
if (BN_is_zero(aa))
{
BN_zero(rr);
ret = 1;
goto err;
}
if (!BN_to_montgomery(val[0],aa,mont,ctx)) goto err; /* 1 */
window = BN_window_bits_for_exponent_size(bits);
if (window > 1)
{
if (!BN_mod_mul_montgomery(d,val[0],val[0],mont,ctx)) goto err; /* 2 */
j=1<<(window-1);
for (i=1; i<j; i++)
{
if(((val[i] = BN_CTX_get(ctx)) == NULL) ||
!BN_mod_mul_montgomery(val[i],val[i-1],
d,mont,ctx))
goto err;
}
}
start=1; /* This is used to avoid multiplication etc
* when there is only the value '1' in the
* buffer. */
wvalue=0; /* The 'value' of the window */
wstart=bits-1; /* The top bit of the window */
wend=0; /* The bottom bit of the window */
if (!BN_to_montgomery(r,BN_value_one(),mont,ctx)) goto err;
for (;;)
{
if (BN_is_bit_set(p,wstart) == 0)
{
if (!start)
{
if (!BN_mod_mul_montgomery(r,r,r,mont,ctx))
goto err;
}
if (wstart == 0) break;
wstart--;
continue;
}
/* We now have wstart on a 'set' bit, we now need to work out
* how bit a window to do. To do this we need to scan
* forward until the last set bit before the end of the
* window */
j=wstart;
wvalue=1;
wend=0;
for (i=1; i<window; i++)
{
if (wstart-i < 0) break;
if (BN_is_bit_set(p,wstart-i))
{
wvalue<<=(i-wend);
wvalue|=1;
wend=i;
}
}
/* wend is the size of the current window */
j=wend+1;
/* add the 'bytes above' */
if (!start)
for (i=0; i<j; i++)
{
if (!BN_mod_mul_montgomery(r,r,r,mont,ctx))
goto err;
}
/* wvalue will be an odd number < 2^window */
if (!BN_mod_mul_montgomery(r,r,val[wvalue>>1],mont,ctx))
goto err;
/* move the 'window' down further */
wstart-=wend+1;
wvalue=0;
start=0;
if (wstart < 0) break;
}
if (!BN_from_montgomery(rr,r,mont,ctx)) goto err;
ret=1;
err:
if ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);
BN_CTX_end(ctx);
bn_check_top(rr);
return(ret);
}
/* BN_mod_exp_mont_consttime() stores the precomputed powers in a specific layout
* so that accessing any of these table values shows the same access pattern as far
* as cache lines are concerned. The following functions are used to transfer a BIGNUM
* from/to that table. */
static int MOD_EXP_CTIME_COPY_TO_PREBUF(BIGNUM *b, int top, unsigned char *buf, int idx, int width)
{
size_t i, j;
if (bn_wexpand(b, top) == NULL)
return 0;
while (b->top < top)
{
b->d[b->top++] = 0;
}
for (i = 0, j=idx; i < top * sizeof b->d[0]; i++, j+=width)
{
buf[j] = ((unsigned char*)b->d)[i];
}
bn_correct_top(b);
return 1;
}
static int MOD_EXP_CTIME_COPY_FROM_PREBUF(BIGNUM *b, int top, unsigned char *buf, int idx, int width)
{
size_t i, j;
if (bn_wexpand(b, top) == NULL)
return 0;
for (i=0, j=idx; i < top * sizeof b->d[0]; i++, j+=width)
{
((unsigned char*)b->d)[i] = buf[j];
}
b->top = top;
bn_correct_top(b);
return 1;
}
/* Given a pointer value, compute the next address that is a cache line multiple. */
#define MOD_EXP_CTIME_ALIGN(x_) \
((unsigned char*)(x_) + (MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH - (((BN_ULONG)(x_)) & (MOD_EXP_CTIME_MIN_CACHE_LINE_MASK))))
/* This variant of BN_mod_exp_mont() uses fixed windows and the special
* precomputation memory layout to limit data-dependency to a minimum
* to protect secret exponents (cf. the hyper-threading timing attacks
* pointed out by Colin Percival,
* http://www.daemonology.net/hyperthreading-considered-harmful/)
*/
int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
{
int i,bits,ret=0,idx,window,wvalue;
int top;
BIGNUM *r;
const BIGNUM *aa;
BN_MONT_CTX *mont=NULL;
int numPowers;
unsigned char *powerbufFree=NULL;
int powerbufLen = 0;
unsigned char *powerbuf=NULL;
BIGNUM *computeTemp=NULL, *am=NULL;
bn_check_top(a);
bn_check_top(p);
bn_check_top(m);
top = m->top;
if (!(m->d[0] & 1))
{
BNerr(BN_F_BN_MOD_EXP_MONT_CONSTTIME,BN_R_CALLED_WITH_EVEN_MODULUS);
return(0);
}
bits=BN_num_bits(p);
if (bits == 0)
{
ret = BN_one(rr);
return ret;
}
/* Initialize BIGNUM context and allocate intermediate result */
BN_CTX_start(ctx);
r = BN_CTX_get(ctx);
if (r == NULL) goto err;
/* Allocate a montgomery context if it was not supplied by the caller.
* If this is not done, things will break in the montgomery part.
*/
if (in_mont != NULL)
mont=in_mont;
else
{
if ((mont=BN_MONT_CTX_new()) == NULL) goto err;
if (!BN_MONT_CTX_set(mont,m,ctx)) goto err;
}
/* Get the window size to use with size of p. */
window = BN_window_bits_for_ctime_exponent_size(bits);
/* Allocate a buffer large enough to hold all of the pre-computed
* powers of a.
*/
numPowers = 1 << window;
powerbufLen = sizeof(m->d[0])*top*numPowers;
if ((powerbufFree=(unsigned char*)OPENSSL_malloc(powerbufLen+MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH)) == NULL)
goto err;
powerbuf = MOD_EXP_CTIME_ALIGN(powerbufFree);
memset(powerbuf, 0, powerbufLen);
/* Initialize the intermediate result. Do this early to save double conversion,
* once each for a^0 and intermediate result.
*/
if (!BN_to_montgomery(r,BN_value_one(),mont,ctx)) goto err;
if (!MOD_EXP_CTIME_COPY_TO_PREBUF(r, top, powerbuf, 0, numPowers)) goto err;
/* Initialize computeTemp as a^1 with montgomery precalcs */
computeTemp = BN_CTX_get(ctx);
am = BN_CTX_get(ctx);
if (computeTemp==NULL || am==NULL) goto err;
if (a->neg || BN_ucmp(a,m) >= 0)
{
if (!BN_mod(am,a,m,ctx))
goto err;
aa= am;
}
else
aa=a;
if (!BN_to_montgomery(am,aa,mont,ctx)) goto err;
if (!BN_copy(computeTemp, am)) goto err;
if (!MOD_EXP_CTIME_COPY_TO_PREBUF(am, top, powerbuf, 1, numPowers)) goto err;
/* If the window size is greater than 1, then calculate
* val[i=2..2^winsize-1]. Powers are computed as a*a^(i-1)
* (even powers could instead be computed as (a^(i/2))^2
* to use the slight performance advantage of sqr over mul).
*/
if (window > 1)
{
for (i=2; i<numPowers; i++)
{
/* Calculate a^i = a^(i-1) * a */
if (!BN_mod_mul_montgomery(computeTemp,am,computeTemp,mont,ctx))
goto err;
if (!MOD_EXP_CTIME_COPY_TO_PREBUF(computeTemp, top, powerbuf, i, numPowers)) goto err;
}
}
/* Adjust the number of bits up to a multiple of the window size.
* If the exponent length is not a multiple of the window size, then
* this pads the most significant bits with zeros to normalize the
* scanning loop to there's no special cases.
*
* * NOTE: Making the window size a power of two less than the native
* * word size ensures that the padded bits won't go past the last
* * word in the internal BIGNUM structure. Going past the end will
* * still produce the correct result, but causes a different branch
* * to be taken in the BN_is_bit_set function.
*/
bits = ((bits+window-1)/window)*window;
idx=bits-1; /* The top bit of the window */
/* Scan the exponent one window at a time starting from the most
* significant bits.
*/
while (idx >= 0)
{
wvalue=0; /* The 'value' of the window */
/* Scan the window, squaring the result as we go */
for (i=0; i<window; i++,idx--)
{
if (!BN_mod_mul_montgomery(r,r,r,mont,ctx)) goto err;
wvalue = (wvalue<<1)+BN_is_bit_set(p,idx);
}
/* Fetch the appropriate pre-computed value from the pre-buf */
if (!MOD_EXP_CTIME_COPY_FROM_PREBUF(computeTemp, top, powerbuf, wvalue, numPowers)) goto err;
/* Multiply the result into the intermediate result */
if (!BN_mod_mul_montgomery(r,r,computeTemp,mont,ctx)) goto err;
}
/* Convert the final result from montgomery to standard format */
if (!BN_from_montgomery(rr,r,mont,ctx)) goto err;
ret=1;
err:
if ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);
if (powerbuf!=NULL)
{
OPENSSL_cleanse(powerbuf,powerbufLen);
OPENSSL_free(powerbufFree);
}
if (am!=NULL) BN_clear(am);
if (computeTemp!=NULL) BN_clear(computeTemp);
BN_CTX_end(ctx);
return(ret);
}
int BN_mod_exp_mont_word(BIGNUM *rr, BN_ULONG a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
{
BN_MONT_CTX *mont = NULL;
int b, bits, ret=0;
int r_is_one;
BN_ULONG w, next_w;
BIGNUM *d, *r, *t;
BIGNUM *swap_tmp;
#define BN_MOD_MUL_WORD(r, w, m) \
(BN_mul_word(r, (w)) && \
(/* BN_ucmp(r, (m)) < 0 ? 1 :*/ \
(BN_mod(t, r, m, ctx) && (swap_tmp = r, r = t, t = swap_tmp, 1))))
/* BN_MOD_MUL_WORD is only used with 'w' large,
* so the BN_ucmp test is probably more overhead
* than always using BN_mod (which uses BN_copy if
* a similar test returns true). */
/* We can use BN_mod and do not need BN_nnmod because our
* accumulator is never negative (the result of BN_mod does
* not depend on the sign of the modulus).
*/
#define BN_TO_MONTGOMERY_WORD(r, w, mont) \
(BN_set_word(r, (w)) && BN_to_montgomery(r, r, (mont), ctx))
if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0)
{
/* BN_FLG_CONSTTIME only supported by BN_mod_exp_mont() */
BNerr(BN_F_BN_MOD_EXP_MONT_WORD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return -1;
}
bn_check_top(p);
bn_check_top(m);
if (!BN_is_odd(m))
{
BNerr(BN_F_BN_MOD_EXP_MONT_WORD,BN_R_CALLED_WITH_EVEN_MODULUS);
return(0);
}
if (m->top == 1)
a %= m->d[0]; /* make sure that 'a' is reduced */
bits = BN_num_bits(p);
if (bits == 0)
{
ret = BN_one(rr);
return ret;
}
if (a == 0)
{
BN_zero(rr);
ret = 1;
return ret;
}
BN_CTX_start(ctx);
d = BN_CTX_get(ctx);
r = BN_CTX_get(ctx);
t = BN_CTX_get(ctx);
if (d == NULL || r == NULL || t == NULL) goto err;
if (in_mont != NULL)
mont=in_mont;
else
{
if ((mont = BN_MONT_CTX_new()) == NULL) goto err;
if (!BN_MONT_CTX_set(mont, m, ctx)) goto err;
}
r_is_one = 1; /* except for Montgomery factor */
/* bits-1 >= 0 */
/* The result is accumulated in the product r*w. */
w = a; /* bit 'bits-1' of 'p' is always set */
for (b = bits-2; b >= 0; b--)
{
/* First, square r*w. */
next_w = w*w;
if ((next_w/w) != w) /* overflow */
{
if (r_is_one)
{
if (!BN_TO_MONTGOMERY_WORD(r, w, mont)) goto err;
r_is_one = 0;
}
else
{
if (!BN_MOD_MUL_WORD(r, w, m)) goto err;
}
next_w = 1;
}
w = next_w;
if (!r_is_one)
{
if (!BN_mod_mul_montgomery(r, r, r, mont, ctx)) goto err;
}
/* Second, multiply r*w by 'a' if exponent bit is set. */
if (BN_is_bit_set(p, b))
{
next_w = w*a;
if ((next_w/a) != w) /* overflow */
{
if (r_is_one)
{
if (!BN_TO_MONTGOMERY_WORD(r, w, mont)) goto err;
r_is_one = 0;
}
else
{
if (!BN_MOD_MUL_WORD(r, w, m)) goto err;
}
next_w = a;
}
w = next_w;
}
}
/* Finally, set r:=r*w. */
if (w != 1)
{
if (r_is_one)
{
if (!BN_TO_MONTGOMERY_WORD(r, w, mont)) goto err;
r_is_one = 0;
}
else
{
if (!BN_MOD_MUL_WORD(r, w, m)) goto err;
}
}
if (r_is_one) /* can happen only if a == 1*/
{
if (!BN_one(rr)) goto err;
}
else
{
if (!BN_from_montgomery(rr, r, mont, ctx)) goto err;
}
ret = 1;
err:
if ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);
BN_CTX_end(ctx);
bn_check_top(rr);
return(ret);
}
/* The old fallback, simple version :-) */
int BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx)
{
int i,j,bits,ret=0,wstart,wend,window,wvalue;
int start=1;
BIGNUM *d;
/* Table of variables obtained from 'ctx' */
BIGNUM *val[TABLE_SIZE];
if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0)
{
/* BN_FLG_CONSTTIME only supported by BN_mod_exp_mont() */
BNerr(BN_F_BN_MOD_EXP_SIMPLE,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return -1;
}
bits=BN_num_bits(p);
if (bits == 0)
{
ret = BN_one(r);
return ret;
}
BN_CTX_start(ctx);
d = BN_CTX_get(ctx);
val[0] = BN_CTX_get(ctx);
if(!d || !val[0]) goto err;
if (!BN_nnmod(val[0],a,m,ctx)) goto err; /* 1 */
if (BN_is_zero(val[0]))
{
BN_zero(r);
ret = 1;
goto err;
}
window = BN_window_bits_for_exponent_size(bits);
if (window > 1)
{
if (!BN_mod_mul(d,val[0],val[0],m,ctx))
goto err; /* 2 */
j=1<<(window-1);
for (i=1; i<j; i++)
{
if(((val[i] = BN_CTX_get(ctx)) == NULL) ||
!BN_mod_mul(val[i],val[i-1],d,m,ctx))
goto err;
}
}
start=1; /* This is used to avoid multiplication etc
* when there is only the value '1' in the
* buffer. */
wvalue=0; /* The 'value' of the window */
wstart=bits-1; /* The top bit of the window */
wend=0; /* The bottom bit of the window */
if (!BN_one(r)) goto err;
for (;;)
{
if (BN_is_bit_set(p,wstart) == 0)
{
if (!start)
if (!BN_mod_mul(r,r,r,m,ctx))
goto err;
if (wstart == 0) break;
wstart--;
continue;
}
/* We now have wstart on a 'set' bit, we now need to work out
* how bit a window to do. To do this we need to scan
* forward until the last set bit before the end of the
* window */
j=wstart;
wvalue=1;
wend=0;
for (i=1; i<window; i++)
{
if (wstart-i < 0) break;
if (BN_is_bit_set(p,wstart-i))
{
wvalue<<=(i-wend);
wvalue|=1;
wend=i;
}
}
/* wend is the size of the current window */
j=wend+1;
/* add the 'bytes above' */
if (!start)
for (i=0; i<j; i++)
{
if (!BN_mod_mul(r,r,r,m,ctx))
goto err;
}
/* wvalue will be an odd number < 2^window */
if (!BN_mod_mul(r,r,val[wvalue>>1],m,ctx))
goto err;
/* move the 'window' down further */
wstart-=wend+1;
wvalue=0;
start=0;
if (wstart < 0) break;
}
ret=1;
err:
BN_CTX_end(ctx);
bn_check_top(r);
return(ret);
}

View file

@ -0,0 +1,312 @@
/* crypto/bn/bn_exp2.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
#define TABLE_SIZE 32
int BN_mod_exp2_mont(BIGNUM *rr, const BIGNUM *a1, const BIGNUM *p1,
const BIGNUM *a2, const BIGNUM *p2, const BIGNUM *m,
BN_CTX *ctx, BN_MONT_CTX *in_mont)
{
int i,j,bits,b,bits1,bits2,ret=0,wpos1,wpos2,window1,window2,wvalue1,wvalue2;
int r_is_one=1;
BIGNUM *d,*r;
const BIGNUM *a_mod_m;
/* Tables of variables obtained from 'ctx' */
BIGNUM *val1[TABLE_SIZE], *val2[TABLE_SIZE];
BN_MONT_CTX *mont=NULL;
bn_check_top(a1);
bn_check_top(p1);
bn_check_top(a2);
bn_check_top(p2);
bn_check_top(m);
if (!(m->d[0] & 1))
{
BNerr(BN_F_BN_MOD_EXP2_MONT,BN_R_CALLED_WITH_EVEN_MODULUS);
return(0);
}
bits1=BN_num_bits(p1);
bits2=BN_num_bits(p2);
if ((bits1 == 0) && (bits2 == 0))
{
ret = BN_one(rr);
return ret;
}
bits=(bits1 > bits2)?bits1:bits2;
BN_CTX_start(ctx);
d = BN_CTX_get(ctx);
r = BN_CTX_get(ctx);
val1[0] = BN_CTX_get(ctx);
val2[0] = BN_CTX_get(ctx);
if(!d || !r || !val1[0] || !val2[0]) goto err;
if (in_mont != NULL)
mont=in_mont;
else
{
if ((mont=BN_MONT_CTX_new()) == NULL) goto err;
if (!BN_MONT_CTX_set(mont,m,ctx)) goto err;
}
window1 = BN_window_bits_for_exponent_size(bits1);
window2 = BN_window_bits_for_exponent_size(bits2);
/*
* Build table for a1: val1[i] := a1^(2*i + 1) mod m for i = 0 .. 2^(window1-1)
*/
if (a1->neg || BN_ucmp(a1,m) >= 0)
{
if (!BN_mod(val1[0],a1,m,ctx))
goto err;
a_mod_m = val1[0];
}
else
a_mod_m = a1;
if (BN_is_zero(a_mod_m))
{
BN_zero(rr);
ret = 1;
goto err;
}
if (!BN_to_montgomery(val1[0],a_mod_m,mont,ctx)) goto err;
if (window1 > 1)
{
if (!BN_mod_mul_montgomery(d,val1[0],val1[0],mont,ctx)) goto err;
j=1<<(window1-1);
for (i=1; i<j; i++)
{
if(((val1[i] = BN_CTX_get(ctx)) == NULL) ||
!BN_mod_mul_montgomery(val1[i],val1[i-1],
d,mont,ctx))
goto err;
}
}
/*
* Build table for a2: val2[i] := a2^(2*i + 1) mod m for i = 0 .. 2^(window2-1)
*/
if (a2->neg || BN_ucmp(a2,m) >= 0)
{
if (!BN_mod(val2[0],a2,m,ctx))
goto err;
a_mod_m = val2[0];
}
else
a_mod_m = a2;
if (BN_is_zero(a_mod_m))
{
BN_zero(rr);
ret = 1;
goto err;
}
if (!BN_to_montgomery(val2[0],a_mod_m,mont,ctx)) goto err;
if (window2 > 1)
{
if (!BN_mod_mul_montgomery(d,val2[0],val2[0],mont,ctx)) goto err;
j=1<<(window2-1);
for (i=1; i<j; i++)
{
if(((val2[i] = BN_CTX_get(ctx)) == NULL) ||
!BN_mod_mul_montgomery(val2[i],val2[i-1],
d,mont,ctx))
goto err;
}
}
/* Now compute the power product, using independent windows. */
r_is_one=1;
wvalue1=0; /* The 'value' of the first window */
wvalue2=0; /* The 'value' of the second window */
wpos1=0; /* If wvalue1 > 0, the bottom bit of the first window */
wpos2=0; /* If wvalue2 > 0, the bottom bit of the second window */
if (!BN_to_montgomery(r,BN_value_one(),mont,ctx)) goto err;
for (b=bits-1; b>=0; b--)
{
if (!r_is_one)
{
if (!BN_mod_mul_montgomery(r,r,r,mont,ctx))
goto err;
}
if (!wvalue1)
if (BN_is_bit_set(p1, b))
{
/* consider bits b-window1+1 .. b for this window */
i = b-window1+1;
while (!BN_is_bit_set(p1, i)) /* works for i<0 */
i++;
wpos1 = i;
wvalue1 = 1;
for (i = b-1; i >= wpos1; i--)
{
wvalue1 <<= 1;
if (BN_is_bit_set(p1, i))
wvalue1++;
}
}
if (!wvalue2)
if (BN_is_bit_set(p2, b))
{
/* consider bits b-window2+1 .. b for this window */
i = b-window2+1;
while (!BN_is_bit_set(p2, i))
i++;
wpos2 = i;
wvalue2 = 1;
for (i = b-1; i >= wpos2; i--)
{
wvalue2 <<= 1;
if (BN_is_bit_set(p2, i))
wvalue2++;
}
}
if (wvalue1 && b == wpos1)
{
/* wvalue1 is odd and < 2^window1 */
if (!BN_mod_mul_montgomery(r,r,val1[wvalue1>>1],mont,ctx))
goto err;
wvalue1 = 0;
r_is_one = 0;
}
if (wvalue2 && b == wpos2)
{
/* wvalue2 is odd and < 2^window2 */
if (!BN_mod_mul_montgomery(r,r,val2[wvalue2>>1],mont,ctx))
goto err;
wvalue2 = 0;
r_is_one = 0;
}
}
if (!BN_from_montgomery(rr,r,mont,ctx))
goto err;
ret=1;
err:
if ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);
BN_CTX_end(ctx);
bn_check_top(rr);
return(ret);
}

View file

@ -0,0 +1,654 @@
/* crypto/bn/bn_gcd.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include "cryptlib.h"
#include "bn_lcl.h"
static BIGNUM *euclid(BIGNUM *a, BIGNUM *b);
int BN_gcd(BIGNUM *r, const BIGNUM *in_a, const BIGNUM *in_b, BN_CTX *ctx)
{
BIGNUM *a,*b,*t;
int ret=0;
bn_check_top(in_a);
bn_check_top(in_b);
BN_CTX_start(ctx);
a = BN_CTX_get(ctx);
b = BN_CTX_get(ctx);
if (a == NULL || b == NULL) goto err;
if (BN_copy(a,in_a) == NULL) goto err;
if (BN_copy(b,in_b) == NULL) goto err;
a->neg = 0;
b->neg = 0;
if (BN_cmp(a,b) < 0) { t=a; a=b; b=t; }
t=euclid(a,b);
if (t == NULL) goto err;
if (BN_copy(r,t) == NULL) goto err;
ret=1;
err:
BN_CTX_end(ctx);
bn_check_top(r);
return(ret);
}
static BIGNUM *euclid(BIGNUM *a, BIGNUM *b)
{
BIGNUM *t;
int shifts=0;
bn_check_top(a);
bn_check_top(b);
/* 0 <= b <= a */
while (!BN_is_zero(b))
{
/* 0 < b <= a */
if (BN_is_odd(a))
{
if (BN_is_odd(b))
{
if (!BN_sub(a,a,b)) goto err;
if (!BN_rshift1(a,a)) goto err;
if (BN_cmp(a,b) < 0)
{ t=a; a=b; b=t; }
}
else /* a odd - b even */
{
if (!BN_rshift1(b,b)) goto err;
if (BN_cmp(a,b) < 0)
{ t=a; a=b; b=t; }
}
}
else /* a is even */
{
if (BN_is_odd(b))
{
if (!BN_rshift1(a,a)) goto err;
if (BN_cmp(a,b) < 0)
{ t=a; a=b; b=t; }
}
else /* a even - b even */
{
if (!BN_rshift1(a,a)) goto err;
if (!BN_rshift1(b,b)) goto err;
shifts++;
}
}
/* 0 <= b <= a */
}
if (shifts)
{
if (!BN_lshift(a,a,shifts)) goto err;
}
bn_check_top(a);
return(a);
err:
return(NULL);
}
/* solves ax == 1 (mod n) */
static BIGNUM *BN_mod_inverse_no_branch(BIGNUM *in,
const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
BIGNUM *BN_mod_inverse(BIGNUM *in,
const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)
{
BIGNUM *A,*B,*X,*Y,*M,*D,*T,*R=NULL;
BIGNUM *ret=NULL;
int sign;
if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0) || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0))
{
return BN_mod_inverse_no_branch(in, a, n, ctx);
}
bn_check_top(a);
bn_check_top(n);
BN_CTX_start(ctx);
A = BN_CTX_get(ctx);
B = BN_CTX_get(ctx);
X = BN_CTX_get(ctx);
D = BN_CTX_get(ctx);
M = BN_CTX_get(ctx);
Y = BN_CTX_get(ctx);
T = BN_CTX_get(ctx);
if (T == NULL) goto err;
if (in == NULL)
R=BN_new();
else
R=in;
if (R == NULL) goto err;
BN_one(X);
BN_zero(Y);
if (BN_copy(B,a) == NULL) goto err;
if (BN_copy(A,n) == NULL) goto err;
A->neg = 0;
if (B->neg || (BN_ucmp(B, A) >= 0))
{
if (!BN_nnmod(B, B, A, ctx)) goto err;
}
sign = -1;
/* From B = a mod |n|, A = |n| it follows that
*
* 0 <= B < A,
* -sign*X*a == B (mod |n|),
* sign*Y*a == A (mod |n|).
*/
if (BN_is_odd(n) && (BN_num_bits(n) <= (BN_BITS <= 32 ? 450 : 2048)))
{
/* Binary inversion algorithm; requires odd modulus.
* This is faster than the general algorithm if the modulus
* is sufficiently small (about 400 .. 500 bits on 32-bit
* sytems, but much more on 64-bit systems) */
int shift;
while (!BN_is_zero(B))
{
/*
* 0 < B < |n|,
* 0 < A <= |n|,
* (1) -sign*X*a == B (mod |n|),
* (2) sign*Y*a == A (mod |n|)
*/
/* Now divide B by the maximum possible power of two in the integers,
* and divide X by the same value mod |n|.
* When we're done, (1) still holds. */
shift = 0;
while (!BN_is_bit_set(B, shift)) /* note that 0 < B */
{
shift++;
if (BN_is_odd(X))
{
if (!BN_uadd(X, X, n)) goto err;
}
/* now X is even, so we can easily divide it by two */
if (!BN_rshift1(X, X)) goto err;
}
if (shift > 0)
{
if (!BN_rshift(B, B, shift)) goto err;
}
/* Same for A and Y. Afterwards, (2) still holds. */
shift = 0;
while (!BN_is_bit_set(A, shift)) /* note that 0 < A */
{
shift++;
if (BN_is_odd(Y))
{
if (!BN_uadd(Y, Y, n)) goto err;
}
/* now Y is even */
if (!BN_rshift1(Y, Y)) goto err;
}
if (shift > 0)
{
if (!BN_rshift(A, A, shift)) goto err;
}
/* We still have (1) and (2).
* Both A and B are odd.
* The following computations ensure that
*
* 0 <= B < |n|,
* 0 < A < |n|,
* (1) -sign*X*a == B (mod |n|),
* (2) sign*Y*a == A (mod |n|),
*
* and that either A or B is even in the next iteration.
*/
if (BN_ucmp(B, A) >= 0)
{
/* -sign*(X + Y)*a == B - A (mod |n|) */
if (!BN_uadd(X, X, Y)) goto err;
/* NB: we could use BN_mod_add_quick(X, X, Y, n), but that
* actually makes the algorithm slower */
if (!BN_usub(B, B, A)) goto err;
}
else
{
/* sign*(X + Y)*a == A - B (mod |n|) */
if (!BN_uadd(Y, Y, X)) goto err;
/* as above, BN_mod_add_quick(Y, Y, X, n) would slow things down */
if (!BN_usub(A, A, B)) goto err;
}
}
}
else
{
/* general inversion algorithm */
while (!BN_is_zero(B))
{
BIGNUM *tmp;
/*
* 0 < B < A,
* (*) -sign*X*a == B (mod |n|),
* sign*Y*a == A (mod |n|)
*/
/* (D, M) := (A/B, A%B) ... */
if (BN_num_bits(A) == BN_num_bits(B))
{
if (!BN_one(D)) goto err;
if (!BN_sub(M,A,B)) goto err;
}
else if (BN_num_bits(A) == BN_num_bits(B) + 1)
{
/* A/B is 1, 2, or 3 */
if (!BN_lshift1(T,B)) goto err;
if (BN_ucmp(A,T) < 0)
{
/* A < 2*B, so D=1 */
if (!BN_one(D)) goto err;
if (!BN_sub(M,A,B)) goto err;
}
else
{
/* A >= 2*B, so D=2 or D=3 */
if (!BN_sub(M,A,T)) goto err;
if (!BN_add(D,T,B)) goto err; /* use D (:= 3*B) as temp */
if (BN_ucmp(A,D) < 0)
{
/* A < 3*B, so D=2 */
if (!BN_set_word(D,2)) goto err;
/* M (= A - 2*B) already has the correct value */
}
else
{
/* only D=3 remains */
if (!BN_set_word(D,3)) goto err;
/* currently M = A - 2*B, but we need M = A - 3*B */
if (!BN_sub(M,M,B)) goto err;
}
}
}
else
{
if (!BN_div(D,M,A,B,ctx)) goto err;
}
/* Now
* A = D*B + M;
* thus we have
* (**) sign*Y*a == D*B + M (mod |n|).
*/
tmp=A; /* keep the BIGNUM object, the value does not matter */
/* (A, B) := (B, A mod B) ... */
A=B;
B=M;
/* ... so we have 0 <= B < A again */
/* Since the former M is now B and the former B is now A,
* (**) translates into
* sign*Y*a == D*A + B (mod |n|),
* i.e.
* sign*Y*a - D*A == B (mod |n|).
* Similarly, (*) translates into
* -sign*X*a == A (mod |n|).
*
* Thus,
* sign*Y*a + D*sign*X*a == B (mod |n|),
* i.e.
* sign*(Y + D*X)*a == B (mod |n|).
*
* So if we set (X, Y, sign) := (Y + D*X, X, -sign), we arrive back at
* -sign*X*a == B (mod |n|),
* sign*Y*a == A (mod |n|).
* Note that X and Y stay non-negative all the time.
*/
/* most of the time D is very small, so we can optimize tmp := D*X+Y */
if (BN_is_one(D))
{
if (!BN_add(tmp,X,Y)) goto err;
}
else
{
if (BN_is_word(D,2))
{
if (!BN_lshift1(tmp,X)) goto err;
}
else if (BN_is_word(D,4))
{
if (!BN_lshift(tmp,X,2)) goto err;
}
else if (D->top == 1)
{
if (!BN_copy(tmp,X)) goto err;
if (!BN_mul_word(tmp,D->d[0])) goto err;
}
else
{
if (!BN_mul(tmp,D,X,ctx)) goto err;
}
if (!BN_add(tmp,tmp,Y)) goto err;
}
M=Y; /* keep the BIGNUM object, the value does not matter */
Y=X;
X=tmp;
sign = -sign;
}
}
/*
* The while loop (Euclid's algorithm) ends when
* A == gcd(a,n);
* we have
* sign*Y*a == A (mod |n|),
* where Y is non-negative.
*/
if (sign < 0)
{
if (!BN_sub(Y,n,Y)) goto err;
}
/* Now Y*a == A (mod |n|). */
if (BN_is_one(A))
{
/* Y*a == 1 (mod |n|) */
if (!Y->neg && BN_ucmp(Y,n) < 0)
{
if (!BN_copy(R,Y)) goto err;
}
else
{
if (!BN_nnmod(R,Y,n,ctx)) goto err;
}
}
else
{
BNerr(BN_F_BN_MOD_INVERSE,BN_R_NO_INVERSE);
goto err;
}
ret=R;
err:
if ((ret == NULL) && (in == NULL)) BN_free(R);
BN_CTX_end(ctx);
bn_check_top(ret);
return(ret);
}
/* BN_mod_inverse_no_branch is a special version of BN_mod_inverse.
* It does not contain branches that may leak sensitive information.
*/
static BIGNUM *BN_mod_inverse_no_branch(BIGNUM *in,
const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)
{
BIGNUM *A,*B,*X,*Y,*M,*D,*T,*R=NULL;
BIGNUM local_A, local_B;
BIGNUM *pA, *pB;
BIGNUM *ret=NULL;
int sign;
bn_check_top(a);
bn_check_top(n);
BN_CTX_start(ctx);
A = BN_CTX_get(ctx);
B = BN_CTX_get(ctx);
X = BN_CTX_get(ctx);
D = BN_CTX_get(ctx);
M = BN_CTX_get(ctx);
Y = BN_CTX_get(ctx);
T = BN_CTX_get(ctx);
if (T == NULL) goto err;
if (in == NULL)
R=BN_new();
else
R=in;
if (R == NULL) goto err;
BN_one(X);
BN_zero(Y);
if (BN_copy(B,a) == NULL) goto err;
if (BN_copy(A,n) == NULL) goto err;
A->neg = 0;
if (B->neg || (BN_ucmp(B, A) >= 0))
{
/* Turn BN_FLG_CONSTTIME flag on, so that when BN_div is invoked,
* BN_div_no_branch will be called eventually.
*/
pB = &local_B;
BN_with_flags(pB, B, BN_FLG_CONSTTIME);
if (!BN_nnmod(B, pB, A, ctx)) goto err;
}
sign = -1;
/* From B = a mod |n|, A = |n| it follows that
*
* 0 <= B < A,
* -sign*X*a == B (mod |n|),
* sign*Y*a == A (mod |n|).
*/
while (!BN_is_zero(B))
{
BIGNUM *tmp;
/*
* 0 < B < A,
* (*) -sign*X*a == B (mod |n|),
* sign*Y*a == A (mod |n|)
*/
/* Turn BN_FLG_CONSTTIME flag on, so that when BN_div is invoked,
* BN_div_no_branch will be called eventually.
*/
pA = &local_A;
BN_with_flags(pA, A, BN_FLG_CONSTTIME);
/* (D, M) := (A/B, A%B) ... */
if (!BN_div(D,M,pA,B,ctx)) goto err;
/* Now
* A = D*B + M;
* thus we have
* (**) sign*Y*a == D*B + M (mod |n|).
*/
tmp=A; /* keep the BIGNUM object, the value does not matter */
/* (A, B) := (B, A mod B) ... */
A=B;
B=M;
/* ... so we have 0 <= B < A again */
/* Since the former M is now B and the former B is now A,
* (**) translates into
* sign*Y*a == D*A + B (mod |n|),
* i.e.
* sign*Y*a - D*A == B (mod |n|).
* Similarly, (*) translates into
* -sign*X*a == A (mod |n|).
*
* Thus,
* sign*Y*a + D*sign*X*a == B (mod |n|),
* i.e.
* sign*(Y + D*X)*a == B (mod |n|).
*
* So if we set (X, Y, sign) := (Y + D*X, X, -sign), we arrive back at
* -sign*X*a == B (mod |n|),
* sign*Y*a == A (mod |n|).
* Note that X and Y stay non-negative all the time.
*/
if (!BN_mul(tmp,D,X,ctx)) goto err;
if (!BN_add(tmp,tmp,Y)) goto err;
M=Y; /* keep the BIGNUM object, the value does not matter */
Y=X;
X=tmp;
sign = -sign;
}
/*
* The while loop (Euclid's algorithm) ends when
* A == gcd(a,n);
* we have
* sign*Y*a == A (mod |n|),
* where Y is non-negative.
*/
if (sign < 0)
{
if (!BN_sub(Y,n,Y)) goto err;
}
/* Now Y*a == A (mod |n|). */
if (BN_is_one(A))
{
/* Y*a == 1 (mod |n|) */
if (!Y->neg && BN_ucmp(Y,n) < 0)
{
if (!BN_copy(R,Y)) goto err;
}
else
{
if (!BN_nnmod(R,Y,n,ctx)) goto err;
}
}
else
{
BNerr(BN_F_BN_MOD_INVERSE_NO_BRANCH,BN_R_NO_INVERSE);
goto err;
}
ret=R;
err:
if ((ret == NULL) && (in == NULL)) BN_free(R);
BN_CTX_end(ctx);
bn_check_top(ret);
return(ret);
}

File diff suppressed because it is too large Load diff

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@ -0,0 +1,184 @@
/* crypto/bn/bn_kron.c */
/* ====================================================================
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include "cryptlib.h"
#include "bn_lcl.h"
/* least significant word */
#define BN_lsw(n) (((n)->top == 0) ? (BN_ULONG) 0 : (n)->d[0])
/* Returns -2 for errors because both -1 and 0 are valid results. */
int BN_kronecker(const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
{
int i;
int ret = -2; /* avoid 'uninitialized' warning */
int err = 0;
BIGNUM *A, *B, *tmp;
/* In 'tab', only odd-indexed entries are relevant:
* For any odd BIGNUM n,
* tab[BN_lsw(n) & 7]
* is $(-1)^{(n^2-1)/8}$ (using TeX notation).
* Note that the sign of n does not matter.
*/
static const int tab[8] = {0, 1, 0, -1, 0, -1, 0, 1};
bn_check_top(a);
bn_check_top(b);
BN_CTX_start(ctx);
A = BN_CTX_get(ctx);
B = BN_CTX_get(ctx);
if (B == NULL) goto end;
err = !BN_copy(A, a);
if (err) goto end;
err = !BN_copy(B, b);
if (err) goto end;
/*
* Kronecker symbol, imlemented according to Henri Cohen,
* "A Course in Computational Algebraic Number Theory"
* (algorithm 1.4.10).
*/
/* Cohen's step 1: */
if (BN_is_zero(B))
{
ret = BN_abs_is_word(A, 1);
goto end;
}
/* Cohen's step 2: */
if (!BN_is_odd(A) && !BN_is_odd(B))
{
ret = 0;
goto end;
}
/* now B is non-zero */
i = 0;
while (!BN_is_bit_set(B, i))
i++;
err = !BN_rshift(B, B, i);
if (err) goto end;
if (i & 1)
{
/* i is odd */
/* (thus B was even, thus A must be odd!) */
/* set 'ret' to $(-1)^{(A^2-1)/8}$ */
ret = tab[BN_lsw(A) & 7];
}
else
{
/* i is even */
ret = 1;
}
if (B->neg)
{
B->neg = 0;
if (A->neg)
ret = -ret;
}
/* now B is positive and odd, so what remains to be done is
* to compute the Jacobi symbol (A/B) and multiply it by 'ret' */
while (1)
{
/* Cohen's step 3: */
/* B is positive and odd */
if (BN_is_zero(A))
{
ret = BN_is_one(B) ? ret : 0;
goto end;
}
/* now A is non-zero */
i = 0;
while (!BN_is_bit_set(A, i))
i++;
err = !BN_rshift(A, A, i);
if (err) goto end;
if (i & 1)
{
/* i is odd */
/* multiply 'ret' by $(-1)^{(B^2-1)/8}$ */
ret = ret * tab[BN_lsw(B) & 7];
}
/* Cohen's step 4: */
/* multiply 'ret' by $(-1)^{(A-1)(B-1)/4}$ */
if ((A->neg ? ~BN_lsw(A) : BN_lsw(A)) & BN_lsw(B) & 2)
ret = -ret;
/* (A, B) := (B mod |A|, |A|) */
err = !BN_nnmod(B, B, A, ctx);
if (err) goto end;
tmp = A; A = B; B = tmp;
tmp->neg = 0;
}
end:
BN_CTX_end(ctx);
if (err)
return -2;
else
return ret;
}

View file

@ -0,0 +1,491 @@
/* crypto/bn/bn_lcl.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#ifndef HEADER_BN_LCL_H
#define HEADER_BN_LCL_H
#include <openssl/bn.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* BN_window_bits_for_exponent_size -- macro for sliding window mod_exp functions
*
*
* For window size 'w' (w >= 2) and a random 'b' bits exponent,
* the number of multiplications is a constant plus on average
*
* 2^(w-1) + (b-w)/(w+1);
*
* here 2^(w-1) is for precomputing the table (we actually need
* entries only for windows that have the lowest bit set), and
* (b-w)/(w+1) is an approximation for the expected number of
* w-bit windows, not counting the first one.
*
* Thus we should use
*
* w >= 6 if b > 671
* w = 5 if 671 > b > 239
* w = 4 if 239 > b > 79
* w = 3 if 79 > b > 23
* w <= 2 if 23 > b
*
* (with draws in between). Very small exponents are often selected
* with low Hamming weight, so we use w = 1 for b <= 23.
*/
#if 1
#define BN_window_bits_for_exponent_size(b) \
((b) > 671 ? 6 : \
(b) > 239 ? 5 : \
(b) > 79 ? 4 : \
(b) > 23 ? 3 : 1)
#else
/* Old SSLeay/OpenSSL table.
* Maximum window size was 5, so this table differs for b==1024;
* but it coincides for other interesting values (b==160, b==512).
*/
#define BN_window_bits_for_exponent_size(b) \
((b) > 255 ? 5 : \
(b) > 127 ? 4 : \
(b) > 17 ? 3 : 1)
#endif
/* BN_mod_exp_mont_conttime is based on the assumption that the
* L1 data cache line width of the target processor is at least
* the following value.
*/
#define MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH ( 64 )
#define MOD_EXP_CTIME_MIN_CACHE_LINE_MASK (MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH - 1)
/* Window sizes optimized for fixed window size modular exponentiation
* algorithm (BN_mod_exp_mont_consttime).
*
* To achieve the security goals of BN_mode_exp_mont_consttime, the
* maximum size of the window must not exceed
* log_2(MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH).
*
* Window size thresholds are defined for cache line sizes of 32 and 64,
* cache line sizes where log_2(32)=5 and log_2(64)=6 respectively. A
* window size of 7 should only be used on processors that have a 128
* byte or greater cache line size.
*/
#if MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH == 64
# define BN_window_bits_for_ctime_exponent_size(b) \
((b) > 937 ? 6 : \
(b) > 306 ? 5 : \
(b) > 89 ? 4 : \
(b) > 22 ? 3 : 1)
# define BN_MAX_WINDOW_BITS_FOR_CTIME_EXPONENT_SIZE (6)
#elif MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH == 32
# define BN_window_bits_for_ctime_exponent_size(b) \
((b) > 306 ? 5 : \
(b) > 89 ? 4 : \
(b) > 22 ? 3 : 1)
# define BN_MAX_WINDOW_BITS_FOR_CTIME_EXPONENT_SIZE (5)
#endif
/* Pentium pro 16,16,16,32,64 */
/* Alpha 16,16,16,16.64 */
#define BN_MULL_SIZE_NORMAL (16) /* 32 */
#define BN_MUL_RECURSIVE_SIZE_NORMAL (16) /* 32 less than */
#define BN_SQR_RECURSIVE_SIZE_NORMAL (16) /* 32 */
#define BN_MUL_LOW_RECURSIVE_SIZE_NORMAL (32) /* 32 */
#define BN_MONT_CTX_SET_SIZE_WORD (64) /* 32 */
#if !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC)
/*
* BN_UMULT_HIGH section.
*
* No, I'm not trying to overwhelm you when stating that the
* product of N-bit numbers is 2*N bits wide:-) No, I don't expect
* you to be impressed when I say that if the compiler doesn't
* support 2*N integer type, then you have to replace every N*N
* multiplication with 4 (N/2)*(N/2) accompanied by some shifts
* and additions which unavoidably results in severe performance
* penalties. Of course provided that the hardware is capable of
* producing 2*N result... That's when you normally start
* considering assembler implementation. However! It should be
* pointed out that some CPUs (most notably Alpha, PowerPC and
* upcoming IA-64 family:-) provide *separate* instruction
* calculating the upper half of the product placing the result
* into a general purpose register. Now *if* the compiler supports
* inline assembler, then it's not impossible to implement the
* "bignum" routines (and have the compiler optimize 'em)
* exhibiting "native" performance in C. That's what BN_UMULT_HIGH
* macro is about:-)
*
* <appro@fy.chalmers.se>
*/
# if defined(__alpha) && (defined(SIXTY_FOUR_BIT_LONG) || defined(SIXTY_FOUR_BIT))
# if defined(__DECC)
# include <c_asm.h>
# define BN_UMULT_HIGH(a,b) (BN_ULONG)asm("umulh %a0,%a1,%v0",(a),(b))
# elif defined(__GNUC__)
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret; \
asm ("umulh %1,%2,%0" \
: "=r"(ret) \
: "r"(a), "r"(b)); \
ret; })
# endif /* compiler */
# elif defined(_ARCH_PPC) && defined(__64BIT__) && defined(SIXTY_FOUR_BIT_LONG)
# if defined(__GNUC__)
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret; \
asm ("mulhdu %0,%1,%2" \
: "=r"(ret) \
: "r"(a), "r"(b)); \
ret; })
# endif /* compiler */
# elif (defined(__x86_64) || defined(__x86_64__)) && \
(defined(SIXTY_FOUR_BIT_LONG) || defined(SIXTY_FOUR_BIT))
# if defined(__GNUC__)
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret,discard; \
asm ("mulq %3" \
: "=a"(discard),"=d"(ret) \
: "a"(a), "g"(b) \
: "cc"); \
ret; })
# define BN_UMULT_LOHI(low,high,a,b) \
asm ("mulq %3" \
: "=a"(low),"=d"(high) \
: "a"(a),"g"(b) \
: "cc");
# endif
# elif (defined(_M_AMD64) || defined(_M_X64)) && defined(SIXTY_FOUR_BIT)
# if defined(_MSC_VER) && _MSC_VER>=1400
unsigned __int64 __umulh (unsigned __int64 a,unsigned __int64 b);
unsigned __int64 _umul128 (unsigned __int64 a,unsigned __int64 b,
unsigned __int64 *h);
# pragma intrinsic(__umulh,_umul128)
# define BN_UMULT_HIGH(a,b) __umulh((a),(b))
# define BN_UMULT_LOHI(low,high,a,b) ((low)=_umul128((a),(b),&(high)))
# endif
# endif /* cpu */
#endif /* OPENSSL_NO_ASM */
/*************************************************************
* Using the long long type
*/
#define Lw(t) (((BN_ULONG)(t))&BN_MASK2)
#define Hw(t) (((BN_ULONG)((t)>>BN_BITS2))&BN_MASK2)
#ifdef BN_DEBUG_RAND
#define bn_clear_top2max(a) \
{ \
int ind = (a)->dmax - (a)->top; \
BN_ULONG *ftl = &(a)->d[(a)->top-1]; \
for (; ind != 0; ind--) \
*(++ftl) = 0x0; \
}
#else
#define bn_clear_top2max(a)
#endif
#ifdef BN_LLONG
#define mul_add(r,a,w,c) { \
BN_ULLONG t; \
t=(BN_ULLONG)w * (a) + (r) + (c); \
(r)= Lw(t); \
(c)= Hw(t); \
}
#define mul(r,a,w,c) { \
BN_ULLONG t; \
t=(BN_ULLONG)w * (a) + (c); \
(r)= Lw(t); \
(c)= Hw(t); \
}
#define sqr(r0,r1,a) { \
BN_ULLONG t; \
t=(BN_ULLONG)(a)*(a); \
(r0)=Lw(t); \
(r1)=Hw(t); \
}
#elif defined(BN_UMULT_LOHI)
#define mul_add(r,a,w,c) { \
BN_ULONG high,low,ret,tmp=(a); \
ret = (r); \
BN_UMULT_LOHI(low,high,w,tmp); \
ret += (c); \
(c) = (ret<(c))?1:0; \
(c) += high; \
ret += low; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
#define mul(r,a,w,c) { \
BN_ULONG high,low,ret,ta=(a); \
BN_UMULT_LOHI(low,high,w,ta); \
ret = low + (c); \
(c) = high; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
#define sqr(r0,r1,a) { \
BN_ULONG tmp=(a); \
BN_UMULT_LOHI(r0,r1,tmp,tmp); \
}
#elif defined(BN_UMULT_HIGH)
#define mul_add(r,a,w,c) { \
BN_ULONG high,low,ret,tmp=(a); \
ret = (r); \
high= BN_UMULT_HIGH(w,tmp); \
ret += (c); \
low = (w) * tmp; \
(c) = (ret<(c))?1:0; \
(c) += high; \
ret += low; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
#define mul(r,a,w,c) { \
BN_ULONG high,low,ret,ta=(a); \
low = (w) * ta; \
high= BN_UMULT_HIGH(w,ta); \
ret = low + (c); \
(c) = high; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
#define sqr(r0,r1,a) { \
BN_ULONG tmp=(a); \
(r0) = tmp * tmp; \
(r1) = BN_UMULT_HIGH(tmp,tmp); \
}
#else
/*************************************************************
* No long long type
*/
#define LBITS(a) ((a)&BN_MASK2l)
#define HBITS(a) (((a)>>BN_BITS4)&BN_MASK2l)
#define L2HBITS(a) (((a)<<BN_BITS4)&BN_MASK2)
#define LLBITS(a) ((a)&BN_MASKl)
#define LHBITS(a) (((a)>>BN_BITS2)&BN_MASKl)
#define LL2HBITS(a) ((BN_ULLONG)((a)&BN_MASKl)<<BN_BITS2)
#define mul64(l,h,bl,bh) \
{ \
BN_ULONG m,m1,lt,ht; \
\
lt=l; \
ht=h; \
m =(bh)*(lt); \
lt=(bl)*(lt); \
m1=(bl)*(ht); \
ht =(bh)*(ht); \
m=(m+m1)&BN_MASK2; if (m < m1) ht+=L2HBITS((BN_ULONG)1); \
ht+=HBITS(m); \
m1=L2HBITS(m); \
lt=(lt+m1)&BN_MASK2; if (lt < m1) ht++; \
(l)=lt; \
(h)=ht; \
}
#define sqr64(lo,ho,in) \
{ \
BN_ULONG l,h,m; \
\
h=(in); \
l=LBITS(h); \
h=HBITS(h); \
m =(l)*(h); \
l*=l; \
h*=h; \
h+=(m&BN_MASK2h1)>>(BN_BITS4-1); \
m =(m&BN_MASK2l)<<(BN_BITS4+1); \
l=(l+m)&BN_MASK2; if (l < m) h++; \
(lo)=l; \
(ho)=h; \
}
#define mul_add(r,a,bl,bh,c) { \
BN_ULONG l,h; \
\
h= (a); \
l=LBITS(h); \
h=HBITS(h); \
mul64(l,h,(bl),(bh)); \
\
/* non-multiply part */ \
l=(l+(c))&BN_MASK2; if (l < (c)) h++; \
(c)=(r); \
l=(l+(c))&BN_MASK2; if (l < (c)) h++; \
(c)=h&BN_MASK2; \
(r)=l; \
}
#define mul(r,a,bl,bh,c) { \
BN_ULONG l,h; \
\
h= (a); \
l=LBITS(h); \
h=HBITS(h); \
mul64(l,h,(bl),(bh)); \
\
/* non-multiply part */ \
l+=(c); if ((l&BN_MASK2) < (c)) h++; \
(c)=h&BN_MASK2; \
(r)=l&BN_MASK2; \
}
#endif /* !BN_LLONG */
void bn_mul_normal(BN_ULONG *r,BN_ULONG *a,int na,BN_ULONG *b,int nb);
void bn_mul_comba8(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b);
void bn_mul_comba4(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b);
void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp);
void bn_sqr_comba8(BN_ULONG *r,const BN_ULONG *a);
void bn_sqr_comba4(BN_ULONG *r,const BN_ULONG *a);
int bn_cmp_words(const BN_ULONG *a,const BN_ULONG *b,int n);
int bn_cmp_part_words(const BN_ULONG *a, const BN_ULONG *b,
int cl, int dl);
void bn_mul_recursive(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,int n2,
int dna,int dnb,BN_ULONG *t);
void bn_mul_part_recursive(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,
int n,int tna,int tnb,BN_ULONG *t);
void bn_sqr_recursive(BN_ULONG *r,const BN_ULONG *a, int n2, BN_ULONG *t);
void bn_mul_low_normal(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b, int n);
void bn_mul_low_recursive(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,int n2,
BN_ULONG *t);
void bn_mul_high(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,BN_ULONG *l,int n2,
BN_ULONG *t);
BN_ULONG bn_add_part_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b,
int cl, int dl);
BN_ULONG bn_sub_part_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b,
int cl, int dl);
int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num);
#ifdef __cplusplus
}
#endif
#endif

View file

@ -0,0 +1,845 @@
/* crypto/bn/bn_lib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef BN_DEBUG
# undef NDEBUG /* avoid conflicting definitions */
# define NDEBUG
#endif
#include <assert.h>
#include <limits.h>
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
const char BN_version[]="Big Number" OPENSSL_VERSION_PTEXT;
/* This stuff appears to be completely unused, so is deprecated */
#ifndef OPENSSL_NO_DEPRECATED
/* For a 32 bit machine
* 2 - 4 == 128
* 3 - 8 == 256
* 4 - 16 == 512
* 5 - 32 == 1024
* 6 - 64 == 2048
* 7 - 128 == 4096
* 8 - 256 == 8192
*/
static int bn_limit_bits=0;
static int bn_limit_num=8; /* (1<<bn_limit_bits) */
static int bn_limit_bits_low=0;
static int bn_limit_num_low=8; /* (1<<bn_limit_bits_low) */
static int bn_limit_bits_high=0;
static int bn_limit_num_high=8; /* (1<<bn_limit_bits_high) */
static int bn_limit_bits_mont=0;
static int bn_limit_num_mont=8; /* (1<<bn_limit_bits_mont) */
void BN_set_params(int mult, int high, int low, int mont)
{
if (mult >= 0)
{
if (mult > (int)(sizeof(int)*8)-1)
mult=sizeof(int)*8-1;
bn_limit_bits=mult;
bn_limit_num=1<<mult;
}
if (high >= 0)
{
if (high > (int)(sizeof(int)*8)-1)
high=sizeof(int)*8-1;
bn_limit_bits_high=high;
bn_limit_num_high=1<<high;
}
if (low >= 0)
{
if (low > (int)(sizeof(int)*8)-1)
low=sizeof(int)*8-1;
bn_limit_bits_low=low;
bn_limit_num_low=1<<low;
}
if (mont >= 0)
{
if (mont > (int)(sizeof(int)*8)-1)
mont=sizeof(int)*8-1;
bn_limit_bits_mont=mont;
bn_limit_num_mont=1<<mont;
}
}
int BN_get_params(int which)
{
if (which == 0) return(bn_limit_bits);
else if (which == 1) return(bn_limit_bits_high);
else if (which == 2) return(bn_limit_bits_low);
else if (which == 3) return(bn_limit_bits_mont);
else return(0);
}
#endif
const BIGNUM *BN_value_one(void)
{
static const BN_ULONG data_one=1L;
static const BIGNUM const_one={(BN_ULONG *)&data_one,1,1,0,BN_FLG_STATIC_DATA};
return(&const_one);
}
char *BN_options(void)
{
static int init=0;
static char data[16];
if (!init)
{
init++;
#ifdef BN_LLONG
BIO_snprintf(data,sizeof data,"bn(%d,%d)",
(int)sizeof(BN_ULLONG)*8,(int)sizeof(BN_ULONG)*8);
#else
BIO_snprintf(data,sizeof data,"bn(%d,%d)",
(int)sizeof(BN_ULONG)*8,(int)sizeof(BN_ULONG)*8);
#endif
}
return(data);
}
int BN_num_bits_word(BN_ULONG l)
{
static const unsigned char bits[256]={
0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,
5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
};
#if defined(SIXTY_FOUR_BIT_LONG)
if (l & 0xffffffff00000000L)
{
if (l & 0xffff000000000000L)
{
if (l & 0xff00000000000000L)
{
return(bits[(int)(l>>56)]+56);
}
else return(bits[(int)(l>>48)]+48);
}
else
{
if (l & 0x0000ff0000000000L)
{
return(bits[(int)(l>>40)]+40);
}
else return(bits[(int)(l>>32)]+32);
}
}
else
#else
#ifdef SIXTY_FOUR_BIT
if (l & 0xffffffff00000000LL)
{
if (l & 0xffff000000000000LL)
{
if (l & 0xff00000000000000LL)
{
return(bits[(int)(l>>56)]+56);
}
else return(bits[(int)(l>>48)]+48);
}
else
{
if (l & 0x0000ff0000000000LL)
{
return(bits[(int)(l>>40)]+40);
}
else return(bits[(int)(l>>32)]+32);
}
}
else
#endif
#endif
{
#if defined(THIRTY_TWO_BIT) || defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG)
if (l & 0xffff0000L)
{
if (l & 0xff000000L)
return(bits[(int)(l>>24L)]+24);
else return(bits[(int)(l>>16L)]+16);
}
else
#endif
{
#if defined(THIRTY_TWO_BIT) || defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG)
if (l & 0xff00L)
return(bits[(int)(l>>8)]+8);
else
#endif
return(bits[(int)(l )] );
}
}
}
int BN_num_bits(const BIGNUM *a)
{
int i = a->top - 1;
bn_check_top(a);
if (BN_is_zero(a)) return 0;
return ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));
}
void BN_clear_free(BIGNUM *a)
{
int i;
if (a == NULL) return;
bn_check_top(a);
if (a->d != NULL)
{
OPENSSL_cleanse(a->d,a->dmax*sizeof(a->d[0]));
if (!(BN_get_flags(a,BN_FLG_STATIC_DATA)))
OPENSSL_free(a->d);
}
i=BN_get_flags(a,BN_FLG_MALLOCED);
OPENSSL_cleanse(a,sizeof(BIGNUM));
if (i)
OPENSSL_free(a);
}
void BN_free(BIGNUM *a)
{
if (a == NULL) return;
bn_check_top(a);
if ((a->d != NULL) && !(BN_get_flags(a,BN_FLG_STATIC_DATA)))
OPENSSL_free(a->d);
if (a->flags & BN_FLG_MALLOCED)
OPENSSL_free(a);
else
{
#ifndef OPENSSL_NO_DEPRECATED
a->flags|=BN_FLG_FREE;
#endif
a->d = NULL;
}
}
void BN_init(BIGNUM *a)
{
memset(a,0,sizeof(BIGNUM));
bn_check_top(a);
}
BIGNUM *BN_new(void)
{
BIGNUM *ret;
if ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)
{
BNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);
return(NULL);
}
ret->flags=BN_FLG_MALLOCED;
ret->top=0;
ret->neg=0;
ret->dmax=0;
ret->d=NULL;
bn_check_top(ret);
return(ret);
}
/* This is used both by bn_expand2() and bn_dup_expand() */
/* The caller MUST check that words > b->dmax before calling this */
static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *A,*a = NULL;
const BN_ULONG *B;
int i;
bn_check_top(b);
if (words > (INT_MAX/(4*BN_BITS2)))
{
BNerr(BN_F_BN_EXPAND_INTERNAL,BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b,BN_FLG_STATIC_DATA))
{
BNerr(BN_F_BN_EXPAND_INTERNAL,BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return(NULL);
}
a=A=(BN_ULONG *)OPENSSL_malloc(sizeof(BN_ULONG)*words);
if (A == NULL)
{
BNerr(BN_F_BN_EXPAND_INTERNAL,ERR_R_MALLOC_FAILURE);
return(NULL);
}
#if 1
B=b->d;
/* Check if the previous number needs to be copied */
if (B != NULL)
{
for (i=b->top>>2; i>0; i--,A+=4,B+=4)
{
/*
* The fact that the loop is unrolled
* 4-wise is a tribute to Intel. It's
* the one that doesn't have enough
* registers to accomodate more data.
* I'd unroll it 8-wise otherwise:-)
*
* <appro@fy.chalmers.se>
*/
BN_ULONG a0,a1,a2,a3;
a0=B[0]; a1=B[1]; a2=B[2]; a3=B[3];
A[0]=a0; A[1]=a1; A[2]=a2; A[3]=a3;
}
switch (b->top&3)
{
case 3: A[2]=B[2];
case 2: A[1]=B[1];
case 1: A[0]=B[0];
case 0: /* workaround for ultrix cc: without 'case 0', the optimizer does
* the switch table by doing a=top&3; a--; goto jump_table[a];
* which fails for top== 0 */
;
}
}
#else
memset(A,0,sizeof(BN_ULONG)*words);
memcpy(A,b->d,sizeof(b->d[0])*b->top);
#endif
return(a);
}
/* This is an internal function that can be used instead of bn_expand2()
* when there is a need to copy BIGNUMs instead of only expanding the
* data part, while still expanding them.
* Especially useful when needing to expand BIGNUMs that are declared
* 'const' and should therefore not be changed.
* The reason to use this instead of a BN_dup() followed by a bn_expand2()
* is memory allocation overhead. A BN_dup() followed by a bn_expand2()
* will allocate new memory for the BIGNUM data twice, and free it once,
* while bn_dup_expand() makes sure allocation is made only once.
*/
#ifndef OPENSSL_NO_DEPRECATED
BIGNUM *bn_dup_expand(const BIGNUM *b, int words)
{
BIGNUM *r = NULL;
bn_check_top(b);
/* This function does not work if
* words <= b->dmax && top < words
* because BN_dup() does not preserve 'dmax'!
* (But bn_dup_expand() is not used anywhere yet.)
*/
if (words > b->dmax)
{
BN_ULONG *a = bn_expand_internal(b, words);
if (a)
{
r = BN_new();
if (r)
{
r->top = b->top;
r->dmax = words;
r->neg = b->neg;
r->d = a;
}
else
{
/* r == NULL, BN_new failure */
OPENSSL_free(a);
}
}
/* If a == NULL, there was an error in allocation in
bn_expand_internal(), and NULL should be returned */
}
else
{
r = BN_dup(b);
}
bn_check_top(r);
return r;
}
#endif
/* This is an internal function that should not be used in applications.
* It ensures that 'b' has enough room for a 'words' word number
* and initialises any unused part of b->d with leading zeros.
* It is mostly used by the various BIGNUM routines. If there is an error,
* NULL is returned. If not, 'b' is returned. */
BIGNUM *bn_expand2(BIGNUM *b, int words)
{
bn_check_top(b);
if (words > b->dmax)
{
BN_ULONG *a = bn_expand_internal(b, words);
if(!a) return NULL;
if(b->d) OPENSSL_free(b->d);
b->d=a;
b->dmax=words;
}
/* None of this should be necessary because of what b->top means! */
#if 0
/* NB: bn_wexpand() calls this only if the BIGNUM really has to grow */
if (b->top < b->dmax)
{
int i;
BN_ULONG *A = &(b->d[b->top]);
for (i=(b->dmax - b->top)>>3; i>0; i--,A+=8)
{
A[0]=0; A[1]=0; A[2]=0; A[3]=0;
A[4]=0; A[5]=0; A[6]=0; A[7]=0;
}
for (i=(b->dmax - b->top)&7; i>0; i--,A++)
A[0]=0;
assert(A == &(b->d[b->dmax]));
}
#endif
bn_check_top(b);
return b;
}
BIGNUM *BN_dup(const BIGNUM *a)
{
BIGNUM *t;
if (a == NULL) return NULL;
bn_check_top(a);
t = BN_new();
if (t == NULL) return NULL;
if(!BN_copy(t, a))
{
BN_free(t);
return NULL;
}
bn_check_top(t);
return t;
}
BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
{
int i;
BN_ULONG *A;
const BN_ULONG *B;
bn_check_top(b);
if (a == b) return(a);
if (bn_wexpand(a,b->top) == NULL) return(NULL);
#if 1
A=a->d;
B=b->d;
for (i=b->top>>2; i>0; i--,A+=4,B+=4)
{
BN_ULONG a0,a1,a2,a3;
a0=B[0]; a1=B[1]; a2=B[2]; a3=B[3];
A[0]=a0; A[1]=a1; A[2]=a2; A[3]=a3;
}
switch (b->top&3)
{
case 3: A[2]=B[2];
case 2: A[1]=B[1];
case 1: A[0]=B[0];
case 0: ; /* ultrix cc workaround, see comments in bn_expand_internal */
}
#else
memcpy(a->d,b->d,sizeof(b->d[0])*b->top);
#endif
a->top=b->top;
a->neg=b->neg;
bn_check_top(a);
return(a);
}
void BN_swap(BIGNUM *a, BIGNUM *b)
{
int flags_old_a, flags_old_b;
BN_ULONG *tmp_d;
int tmp_top, tmp_dmax, tmp_neg;
bn_check_top(a);
bn_check_top(b);
flags_old_a = a->flags;
flags_old_b = b->flags;
tmp_d = a->d;
tmp_top = a->top;
tmp_dmax = a->dmax;
tmp_neg = a->neg;
a->d = b->d;
a->top = b->top;
a->dmax = b->dmax;
a->neg = b->neg;
b->d = tmp_d;
b->top = tmp_top;
b->dmax = tmp_dmax;
b->neg = tmp_neg;
a->flags = (flags_old_a & BN_FLG_MALLOCED) | (flags_old_b & BN_FLG_STATIC_DATA);
b->flags = (flags_old_b & BN_FLG_MALLOCED) | (flags_old_a & BN_FLG_STATIC_DATA);
bn_check_top(a);
bn_check_top(b);
}
void BN_clear(BIGNUM *a)
{
bn_check_top(a);
if (a->d != NULL)
memset(a->d,0,a->dmax*sizeof(a->d[0]));
a->top=0;
a->neg=0;
}
BN_ULONG BN_get_word(const BIGNUM *a)
{
if (a->top > 1)
return BN_MASK2;
else if (a->top == 1)
return a->d[0];
/* a->top == 0 */
return 0;
}
int BN_set_word(BIGNUM *a, BN_ULONG w)
{
bn_check_top(a);
if (bn_expand(a,(int)sizeof(BN_ULONG)*8) == NULL) return(0);
a->neg = 0;
a->d[0] = w;
a->top = (w ? 1 : 0);
bn_check_top(a);
return(1);
}
BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)
{
unsigned int i,m;
unsigned int n;
BN_ULONG l;
BIGNUM *bn = NULL;
if (ret == NULL)
ret = bn = BN_new();
if (ret == NULL) return(NULL);
bn_check_top(ret);
l=0;
n=len;
if (n == 0)
{
ret->top=0;
return(ret);
}
i=((n-1)/BN_BYTES)+1;
m=((n-1)%(BN_BYTES));
if (bn_wexpand(ret, (int)i) == NULL)
{
if (bn) BN_free(bn);
return NULL;
}
ret->top=i;
ret->neg=0;
while (n--)
{
l=(l<<8L)| *(s++);
if (m-- == 0)
{
ret->d[--i]=l;
l=0;
m=BN_BYTES-1;
}
}
/* need to call this due to clear byte at top if avoiding
* having the top bit set (-ve number) */
bn_correct_top(ret);
return(ret);
}
/* ignore negative */
int BN_bn2bin(const BIGNUM *a, unsigned char *to)
{
int n,i;
BN_ULONG l;
bn_check_top(a);
n=i=BN_num_bytes(a);
while (i--)
{
l=a->d[i/BN_BYTES];
*(to++)=(unsigned char)(l>>(8*(i%BN_BYTES)))&0xff;
}
return(n);
}
int BN_ucmp(const BIGNUM *a, const BIGNUM *b)
{
int i;
BN_ULONG t1,t2,*ap,*bp;
bn_check_top(a);
bn_check_top(b);
i=a->top-b->top;
if (i != 0) return(i);
ap=a->d;
bp=b->d;
for (i=a->top-1; i>=0; i--)
{
t1= ap[i];
t2= bp[i];
if (t1 != t2)
return((t1 > t2) ? 1 : -1);
}
return(0);
}
int BN_cmp(const BIGNUM *a, const BIGNUM *b)
{
int i;
int gt,lt;
BN_ULONG t1,t2;
if ((a == NULL) || (b == NULL))
{
if (a != NULL)
return(-1);
else if (b != NULL)
return(1);
else
return(0);
}
bn_check_top(a);
bn_check_top(b);
if (a->neg != b->neg)
{
if (a->neg)
return(-1);
else return(1);
}
if (a->neg == 0)
{ gt=1; lt= -1; }
else { gt= -1; lt=1; }
if (a->top > b->top) return(gt);
if (a->top < b->top) return(lt);
for (i=a->top-1; i>=0; i--)
{
t1=a->d[i];
t2=b->d[i];
if (t1 > t2) return(gt);
if (t1 < t2) return(lt);
}
return(0);
}
int BN_set_bit(BIGNUM *a, int n)
{
int i,j,k;
if (n < 0)
return 0;
i=n/BN_BITS2;
j=n%BN_BITS2;
if (a->top <= i)
{
if (bn_wexpand(a,i+1) == NULL) return(0);
for(k=a->top; k<i+1; k++)
a->d[k]=0;
a->top=i+1;
}
a->d[i]|=(((BN_ULONG)1)<<j);
bn_check_top(a);
return(1);
}
int BN_clear_bit(BIGNUM *a, int n)
{
int i,j;
bn_check_top(a);
if (n < 0) return 0;
i=n/BN_BITS2;
j=n%BN_BITS2;
if (a->top <= i) return(0);
a->d[i]&=(~(((BN_ULONG)1)<<j));
bn_correct_top(a);
return(1);
}
int BN_is_bit_set(const BIGNUM *a, int n)
{
int i,j;
bn_check_top(a);
if (n < 0) return 0;
i=n/BN_BITS2;
j=n%BN_BITS2;
if (a->top <= i) return 0;
return (int)(((a->d[i])>>j)&((BN_ULONG)1));
}
int BN_mask_bits(BIGNUM *a, int n)
{
int b,w;
bn_check_top(a);
if (n < 0) return 0;
w=n/BN_BITS2;
b=n%BN_BITS2;
if (w >= a->top) return 0;
if (b == 0)
a->top=w;
else
{
a->top=w+1;
a->d[w]&= ~(BN_MASK2<<b);
}
bn_correct_top(a);
return(1);
}
void BN_set_negative(BIGNUM *a, int b)
{
if (b && !BN_is_zero(a))
a->neg = 1;
else
a->neg = 0;
}
int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
{
int i;
BN_ULONG aa,bb;
aa=a[n-1];
bb=b[n-1];
if (aa != bb) return((aa > bb)?1:-1);
for (i=n-2; i>=0; i--)
{
aa=a[i];
bb=b[i];
if (aa != bb) return((aa > bb)?1:-1);
}
return(0);
}
/* Here follows a specialised variants of bn_cmp_words(). It has the
property of performing the operation on arrays of different sizes.
The sizes of those arrays is expressed through cl, which is the
common length ( basicall, min(len(a),len(b)) ), and dl, which is the
delta between the two lengths, calculated as len(a)-len(b).
All lengths are the number of BN_ULONGs... */
int bn_cmp_part_words(const BN_ULONG *a, const BN_ULONG *b,
int cl, int dl)
{
int n,i;
n = cl-1;
if (dl < 0)
{
for (i=dl; i<0; i++)
{
if (b[n-i] != 0)
return -1; /* a < b */
}
}
if (dl > 0)
{
for (i=dl; i>0; i--)
{
if (a[n+i] != 0)
return 1; /* a > b */
}
}
return bn_cmp_words(a,b,cl);
}

View file

@ -0,0 +1,301 @@
/* crypto/bn/bn_mod.c */
/* Includes code written by Lenka Fibikova <fibikova@exp-math.uni-essen.de>
* for the OpenSSL project. */
/* ====================================================================
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include "cryptlib.h"
#include "bn_lcl.h"
#if 0 /* now just a #define */
int BN_mod(BIGNUM *rem, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)
{
return(BN_div(NULL,rem,m,d,ctx));
/* note that rem->neg == m->neg (unless the remainder is zero) */
}
#endif
int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)
{
/* like BN_mod, but returns non-negative remainder
* (i.e., 0 <= r < |d| always holds) */
if (!(BN_mod(r,m,d,ctx)))
return 0;
if (!r->neg)
return 1;
/* now -|d| < r < 0, so we have to set r := r + |d| */
return (d->neg ? BN_sub : BN_add)(r, r, d);
}
int BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx)
{
if (!BN_add(r, a, b)) return 0;
return BN_nnmod(r, r, m, ctx);
}
/* BN_mod_add variant that may be used if both a and b are non-negative
* and less than m */
int BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m)
{
if (!BN_uadd(r, a, b)) return 0;
if (BN_ucmp(r, m) >= 0)
return BN_usub(r, r, m);
return 1;
}
int BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m, BN_CTX *ctx)
{
if (!BN_sub(r, a, b)) return 0;
return BN_nnmod(r, r, m, ctx);
}
/* BN_mod_sub variant that may be used if both a and b are non-negative
* and less than m */
int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m)
{
if (!BN_sub(r, a, b)) return 0;
if (r->neg)
return BN_add(r, r, m);
return 1;
}
/* slow but works */
int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
BN_CTX *ctx)
{
BIGNUM *t;
int ret=0;
bn_check_top(a);
bn_check_top(b);
bn_check_top(m);
BN_CTX_start(ctx);
if ((t = BN_CTX_get(ctx)) == NULL) goto err;
if (a == b)
{ if (!BN_sqr(t,a,ctx)) goto err; }
else
{ if (!BN_mul(t,a,b,ctx)) goto err; }
if (!BN_nnmod(r,t,m,ctx)) goto err;
bn_check_top(r);
ret=1;
err:
BN_CTX_end(ctx);
return(ret);
}
int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx)
{
if (!BN_sqr(r, a, ctx)) return 0;
/* r->neg == 0, thus we don't need BN_nnmod */
return BN_mod(r, r, m, ctx);
}
int BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx)
{
if (!BN_lshift1(r, a)) return 0;
bn_check_top(r);
return BN_nnmod(r, r, m, ctx);
}
/* BN_mod_lshift1 variant that may be used if a is non-negative
* and less than m */
int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m)
{
if (!BN_lshift1(r, a)) return 0;
bn_check_top(r);
if (BN_cmp(r, m) >= 0)
return BN_sub(r, r, m);
return 1;
}
int BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m, BN_CTX *ctx)
{
BIGNUM *abs_m = NULL;
int ret;
if (!BN_nnmod(r, a, m, ctx)) return 0;
if (m->neg)
{
abs_m = BN_dup(m);
if (abs_m == NULL) return 0;
abs_m->neg = 0;
}
ret = BN_mod_lshift_quick(r, r, n, (abs_m ? abs_m : m));
bn_check_top(r);
if (abs_m)
BN_free(abs_m);
return ret;
}
/* BN_mod_lshift variant that may be used if a is non-negative
* and less than m */
int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m)
{
if (r != a)
{
if (BN_copy(r, a) == NULL) return 0;
}
while (n > 0)
{
int max_shift;
/* 0 < r < m */
max_shift = BN_num_bits(m) - BN_num_bits(r);
/* max_shift >= 0 */
if (max_shift < 0)
{
BNerr(BN_F_BN_MOD_LSHIFT_QUICK, BN_R_INPUT_NOT_REDUCED);
return 0;
}
if (max_shift > n)
max_shift = n;
if (max_shift)
{
if (!BN_lshift(r, r, max_shift)) return 0;
n -= max_shift;
}
else
{
if (!BN_lshift1(r, r)) return 0;
--n;
}
/* BN_num_bits(r) <= BN_num_bits(m) */
if (BN_cmp(r, m) >= 0)
{
if (!BN_sub(r, r, m)) return 0;
}
}
bn_check_top(r);
return 1;
}

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@ -0,0 +1,567 @@
/* crypto/bn/bn_mont.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/*
* Details about Montgomery multiplication algorithms can be found at
* http://security.ece.orst.edu/publications.html, e.g.
* http://security.ece.orst.edu/koc/papers/j37acmon.pdf and
* sections 3.8 and 4.2 in http://security.ece.orst.edu/koc/papers/r01rsasw.pdf
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
#define MONT_WORD /* use the faster word-based algorithm */
#ifdef MONT_WORD
static int BN_from_montgomery_word(BIGNUM *ret, BIGNUM *r, BN_MONT_CTX *mont);
#endif
int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
BN_MONT_CTX *mont, BN_CTX *ctx)
{
BIGNUM *tmp;
int ret=0;
#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)
int num = mont->N.top;
if (num>1 && a->top==num && b->top==num)
{
if (bn_wexpand(r,num) == NULL) return(0);
if (bn_mul_mont(r->d,a->d,b->d,mont->N.d,mont->n0,num))
{
r->neg = a->neg^b->neg;
r->top = num;
bn_correct_top(r);
return(1);
}
}
#endif
BN_CTX_start(ctx);
tmp = BN_CTX_get(ctx);
if (tmp == NULL) goto err;
bn_check_top(tmp);
if (a == b)
{
if (!BN_sqr(tmp,a,ctx)) goto err;
}
else
{
if (!BN_mul(tmp,a,b,ctx)) goto err;
}
/* reduce from aRR to aR */
#ifdef MONT_WORD
if (!BN_from_montgomery_word(r,tmp,mont)) goto err;
#else
if (!BN_from_montgomery(r,tmp,mont,ctx)) goto err;
#endif
bn_check_top(r);
ret=1;
err:
BN_CTX_end(ctx);
return(ret);
}
#ifdef MONT_WORD
static int BN_from_montgomery_word(BIGNUM *ret, BIGNUM *r, BN_MONT_CTX *mont)
{
BIGNUM *n;
BN_ULONG *ap,*np,*rp,n0,v,*nrp;
int al,nl,max,i,x,ri;
n= &(mont->N);
/* mont->ri is the size of mont->N in bits (rounded up
to the word size) */
al=ri=mont->ri/BN_BITS2;
nl=n->top;
if ((al == 0) || (nl == 0)) { ret->top=0; return(1); }
max=(nl+al+1); /* allow for overflow (no?) XXX */
if (bn_wexpand(r,max) == NULL) return(0);
r->neg^=n->neg;
np=n->d;
rp=r->d;
nrp= &(r->d[nl]);
/* clear the top words of T */
#if 1
for (i=r->top; i<max; i++) /* memset? XXX */
r->d[i]=0;
#else
memset(&(r->d[r->top]),0,(max-r->top)*sizeof(BN_ULONG));
#endif
r->top=max;
n0=mont->n0[0];
#ifdef BN_COUNT
fprintf(stderr,"word BN_from_montgomery_word %d * %d\n",nl,nl);
#endif
for (i=0; i<nl; i++)
{
#ifdef __TANDEM
{
long long t1;
long long t2;
long long t3;
t1 = rp[0] * (n0 & 0177777);
t2 = 037777600000l;
t2 = n0 & t2;
t3 = rp[0] & 0177777;
t2 = (t3 * t2) & BN_MASK2;
t1 = t1 + t2;
v=bn_mul_add_words(rp,np,nl,(BN_ULONG) t1);
}
#else
v=bn_mul_add_words(rp,np,nl,(rp[0]*n0)&BN_MASK2);
#endif
nrp++;
rp++;
if (((nrp[-1]+=v)&BN_MASK2) >= v)
continue;
else
{
if (((++nrp[0])&BN_MASK2) != 0) continue;
if (((++nrp[1])&BN_MASK2) != 0) continue;
for (x=2; (((++nrp[x])&BN_MASK2) == 0); x++) ;
}
}
bn_correct_top(r);
/* mont->ri will be a multiple of the word size and below code
* is kind of BN_rshift(ret,r,mont->ri) equivalent */
if (r->top <= ri)
{
ret->top=0;
return(1);
}
al=r->top-ri;
#define BRANCH_FREE 1
#if BRANCH_FREE
if (bn_wexpand(ret,ri) == NULL) return(0);
x=0-(((al-ri)>>(sizeof(al)*8-1))&1);
ret->top=x=(ri&~x)|(al&x); /* min(ri,al) */
ret->neg=r->neg;
rp=ret->d;
ap=&(r->d[ri]);
{
size_t m1,m2;
v=bn_sub_words(rp,ap,np,ri);
/* this ----------------^^ works even in al<ri case
* thanks to zealous zeroing of top of the vector in the
* beginning. */
/* if (al==ri && !v) || al>ri) nrp=rp; else nrp=ap; */
/* in other words if subtraction result is real, then
* trick unconditional memcpy below to perform in-place
* "refresh" instead of actual copy. */
m1=0-(size_t)(((al-ri)>>(sizeof(al)*8-1))&1); /* al<ri */
m2=0-(size_t)(((ri-al)>>(sizeof(al)*8-1))&1); /* al>ri */
m1|=m2; /* (al!=ri) */
m1|=(0-(size_t)v); /* (al!=ri || v) */
m1&=~m2; /* (al!=ri || v) && !al>ri */
nrp=(BN_ULONG *)(((size_t)rp&~m1)|((size_t)ap&m1));
}
/* 'i<ri' is chosen to eliminate dependency on input data, even
* though it results in redundant copy in al<ri case. */
for (i=0,ri-=4; i<ri; i+=4)
{
BN_ULONG t1,t2,t3,t4;
t1=nrp[i+0];
t2=nrp[i+1];
t3=nrp[i+2]; ap[i+0]=0;
t4=nrp[i+3]; ap[i+1]=0;
rp[i+0]=t1; ap[i+2]=0;
rp[i+1]=t2; ap[i+3]=0;
rp[i+2]=t3;
rp[i+3]=t4;
}
for (ri+=4; i<ri; i++)
rp[i]=nrp[i], ap[i]=0;
bn_correct_top(r);
bn_correct_top(ret);
#else
if (bn_wexpand(ret,al) == NULL) return(0);
ret->top=al;
ret->neg=r->neg;
rp=ret->d;
ap=&(r->d[ri]);
al-=4;
for (i=0; i<al; i+=4)
{
BN_ULONG t1,t2,t3,t4;
t1=ap[i+0];
t2=ap[i+1];
t3=ap[i+2];
t4=ap[i+3];
rp[i+0]=t1;
rp[i+1]=t2;
rp[i+2]=t3;
rp[i+3]=t4;
}
al+=4;
for (; i<al; i++)
rp[i]=ap[i];
if (BN_ucmp(ret, &(mont->N)) >= 0)
{
if (!BN_usub(ret,ret,&(mont->N))) return(0);
}
#endif
bn_check_top(ret);
return(1);
}
#endif /* MONT_WORD */
int BN_from_montgomery(BIGNUM *ret, const BIGNUM *a, BN_MONT_CTX *mont,
BN_CTX *ctx)
{
int retn=0;
#ifdef MONT_WORD
BIGNUM *t;
BN_CTX_start(ctx);
if ((t = BN_CTX_get(ctx)) && BN_copy(t,a))
retn = BN_from_montgomery_word(ret,t,mont);
BN_CTX_end(ctx);
#else /* !MONT_WORD */
BIGNUM *t1,*t2;
BN_CTX_start(ctx);
t1 = BN_CTX_get(ctx);
t2 = BN_CTX_get(ctx);
if (t1 == NULL || t2 == NULL) goto err;
if (!BN_copy(t1,a)) goto err;
BN_mask_bits(t1,mont->ri);
if (!BN_mul(t2,t1,&mont->Ni,ctx)) goto err;
BN_mask_bits(t2,mont->ri);
if (!BN_mul(t1,t2,&mont->N,ctx)) goto err;
if (!BN_add(t2,a,t1)) goto err;
if (!BN_rshift(ret,t2,mont->ri)) goto err;
if (BN_ucmp(ret, &(mont->N)) >= 0)
{
if (!BN_usub(ret,ret,&(mont->N))) goto err;
}
retn=1;
bn_check_top(ret);
err:
BN_CTX_end(ctx);
#endif /* MONT_WORD */
return(retn);
}
BN_MONT_CTX *BN_MONT_CTX_new(void)
{
BN_MONT_CTX *ret;
if ((ret=(BN_MONT_CTX *)OPENSSL_malloc(sizeof(BN_MONT_CTX))) == NULL)
return(NULL);
BN_MONT_CTX_init(ret);
ret->flags=BN_FLG_MALLOCED;
return(ret);
}
void BN_MONT_CTX_init(BN_MONT_CTX *ctx)
{
ctx->ri=0;
BN_init(&(ctx->RR));
BN_init(&(ctx->N));
BN_init(&(ctx->Ni));
ctx->n0[0] = ctx->n0[1] = 0;
ctx->flags=0;
}
void BN_MONT_CTX_free(BN_MONT_CTX *mont)
{
if(mont == NULL)
return;
BN_free(&(mont->RR));
BN_free(&(mont->N));
BN_free(&(mont->Ni));
if (mont->flags & BN_FLG_MALLOCED)
OPENSSL_free(mont);
}
int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)
{
int ret = 0;
BIGNUM *Ri,*R;
BN_CTX_start(ctx);
if((Ri = BN_CTX_get(ctx)) == NULL) goto err;
R= &(mont->RR); /* grab RR as a temp */
if (!BN_copy(&(mont->N),mod)) goto err; /* Set N */
mont->N.neg = 0;
#ifdef MONT_WORD
{
BIGNUM tmod;
BN_ULONG buf[2];
BN_init(&tmod);
tmod.d=buf;
tmod.dmax=2;
tmod.neg=0;
mont->ri=(BN_num_bits(mod)+(BN_BITS2-1))/BN_BITS2*BN_BITS2;
#if defined(OPENSSL_BN_ASM_MONT) && (BN_BITS2<=32)
/* Only certain BN_BITS2<=32 platforms actually make use of
* n0[1], and we could use the #else case (with a shorter R
* value) for the others. However, currently only the assembler
* files do know which is which. */
BN_zero(R);
if (!(BN_set_bit(R,2*BN_BITS2))) goto err;
tmod.top=0;
if ((buf[0] = mod->d[0])) tmod.top=1;
if ((buf[1] = mod->top>1 ? mod->d[1] : 0)) tmod.top=2;
if ((BN_mod_inverse(Ri,R,&tmod,ctx)) == NULL)
goto err;
if (!BN_lshift(Ri,Ri,2*BN_BITS2)) goto err; /* R*Ri */
if (!BN_is_zero(Ri))
{
if (!BN_sub_word(Ri,1)) goto err;
}
else /* if N mod word size == 1 */
{
if (bn_expand(Ri,(int)sizeof(BN_ULONG)*2) == NULL)
goto err;
/* Ri-- (mod double word size) */
Ri->neg=0;
Ri->d[0]=BN_MASK2;
Ri->d[1]=BN_MASK2;
Ri->top=2;
}
if (!BN_div(Ri,NULL,Ri,&tmod,ctx)) goto err;
/* Ni = (R*Ri-1)/N,
* keep only couple of least significant words: */
mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;
mont->n0[1] = (Ri->top > 1) ? Ri->d[1] : 0;
#else
BN_zero(R);
if (!(BN_set_bit(R,BN_BITS2))) goto err; /* R */
buf[0]=mod->d[0]; /* tmod = N mod word size */
buf[1]=0;
tmod.top = buf[0] != 0 ? 1 : 0;
/* Ri = R^-1 mod N*/
if ((BN_mod_inverse(Ri,R,&tmod,ctx)) == NULL)
goto err;
if (!BN_lshift(Ri,Ri,BN_BITS2)) goto err; /* R*Ri */
if (!BN_is_zero(Ri))
{
if (!BN_sub_word(Ri,1)) goto err;
}
else /* if N mod word size == 1 */
{
if (!BN_set_word(Ri,BN_MASK2)) goto err; /* Ri-- (mod word size) */
}
if (!BN_div(Ri,NULL,Ri,&tmod,ctx)) goto err;
/* Ni = (R*Ri-1)/N,
* keep only least significant word: */
mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;
mont->n0[1] = 0;
#endif
}
#else /* !MONT_WORD */
{ /* bignum version */
mont->ri=BN_num_bits(&mont->N);
BN_zero(R);
if (!BN_set_bit(R,mont->ri)) goto err; /* R = 2^ri */
/* Ri = R^-1 mod N*/
if ((BN_mod_inverse(Ri,R,&mont->N,ctx)) == NULL)
goto err;
if (!BN_lshift(Ri,Ri,mont->ri)) goto err; /* R*Ri */
if (!BN_sub_word(Ri,1)) goto err;
/* Ni = (R*Ri-1) / N */
if (!BN_div(&(mont->Ni),NULL,Ri,&mont->N,ctx)) goto err;
}
#endif
/* setup RR for conversions */
BN_zero(&(mont->RR));
if (!BN_set_bit(&(mont->RR),mont->ri*2)) goto err;
if (!BN_mod(&(mont->RR),&(mont->RR),&(mont->N),ctx)) goto err;
ret = 1;
err:
BN_CTX_end(ctx);
return ret;
}
BN_MONT_CTX *BN_MONT_CTX_copy(BN_MONT_CTX *to, BN_MONT_CTX *from)
{
if (to == from) return(to);
if (!BN_copy(&(to->RR),&(from->RR))) return NULL;
if (!BN_copy(&(to->N),&(from->N))) return NULL;
if (!BN_copy(&(to->Ni),&(from->Ni))) return NULL;
to->ri=from->ri;
to->n0[0]=from->n0[0];
to->n0[1]=from->n0[1];
return(to);
}
BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, int lock,
const BIGNUM *mod, BN_CTX *ctx)
{
int got_write_lock = 0;
BN_MONT_CTX *ret;
CRYPTO_r_lock(lock);
if (!*pmont)
{
CRYPTO_r_unlock(lock);
CRYPTO_w_lock(lock);
got_write_lock = 1;
if (!*pmont)
{
ret = BN_MONT_CTX_new();
if (ret && !BN_MONT_CTX_set(ret, mod, ctx))
BN_MONT_CTX_free(ret);
else
*pmont = ret;
}
}
ret = *pmont;
if (got_write_lock)
CRYPTO_w_unlock(lock);
else
CRYPTO_r_unlock(lock);
return ret;
}

View file

@ -0,0 +1,130 @@
/* crypto/bn/bn_mpi.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
int BN_bn2mpi(const BIGNUM *a, unsigned char *d)
{
int bits;
int num=0;
int ext=0;
long l;
bits=BN_num_bits(a);
num=(bits+7)/8;
if (bits > 0)
{
ext=((bits & 0x07) == 0);
}
if (d == NULL)
return(num+4+ext);
l=num+ext;
d[0]=(unsigned char)(l>>24)&0xff;
d[1]=(unsigned char)(l>>16)&0xff;
d[2]=(unsigned char)(l>> 8)&0xff;
d[3]=(unsigned char)(l )&0xff;
if (ext) d[4]=0;
num=BN_bn2bin(a,&(d[4+ext]));
if (a->neg)
d[4]|=0x80;
return(num+4+ext);
}
BIGNUM *BN_mpi2bn(const unsigned char *d, int n, BIGNUM *a)
{
long len;
int neg=0;
if (n < 4)
{
BNerr(BN_F_BN_MPI2BN,BN_R_INVALID_LENGTH);
return(NULL);
}
len=((long)d[0]<<24)|((long)d[1]<<16)|((int)d[2]<<8)|(int)d[3];
if ((len+4) != n)
{
BNerr(BN_F_BN_MPI2BN,BN_R_ENCODING_ERROR);
return(NULL);
}
if (a == NULL) a=BN_new();
if (a == NULL) return(NULL);
if (len == 0)
{
a->neg=0;
a->top=0;
return(a);
}
d+=4;
if ((*d) & 0x80)
neg=1;
if (BN_bin2bn(d,(int)len,a) == NULL)
return(NULL);
a->neg=neg;
if (neg)
{
BN_clear_bit(a,BN_num_bits(a)-1);
}
bn_check_top(a);
return(a);
}

File diff suppressed because it is too large Load diff

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@ -0,0 +1,836 @@
/* crypto/bn/bn_nist.c */
/*
* Written by Nils Larsch for the OpenSSL project
*/
/* ====================================================================
* Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include "bn_lcl.h"
#include "cryptlib.h"
#define BN_NIST_192_TOP (192+BN_BITS2-1)/BN_BITS2
#define BN_NIST_224_TOP (224+BN_BITS2-1)/BN_BITS2
#define BN_NIST_256_TOP (256+BN_BITS2-1)/BN_BITS2
#define BN_NIST_384_TOP (384+BN_BITS2-1)/BN_BITS2
#define BN_NIST_521_TOP (521+BN_BITS2-1)/BN_BITS2
/* pre-computed tables are "carry-less" values of modulus*(i+1) */
#if BN_BITS2 == 64
static const BN_ULONG _nist_p_192[][BN_NIST_192_TOP] = {
{0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFEULL,0xFFFFFFFFFFFFFFFFULL},
{0xFFFFFFFFFFFFFFFEULL,0xFFFFFFFFFFFFFFFDULL,0xFFFFFFFFFFFFFFFFULL},
{0xFFFFFFFFFFFFFFFDULL,0xFFFFFFFFFFFFFFFCULL,0xFFFFFFFFFFFFFFFFULL}
};
static const BN_ULONG _nist_p_192_sqr[] = {
0x0000000000000001ULL,0x0000000000000002ULL,0x0000000000000001ULL,
0xFFFFFFFFFFFFFFFEULL,0xFFFFFFFFFFFFFFFDULL,0xFFFFFFFFFFFFFFFFULL
};
static const BN_ULONG _nist_p_224[][BN_NIST_224_TOP] = {
{0x0000000000000001ULL,0xFFFFFFFF00000000ULL,
0xFFFFFFFFFFFFFFFFULL,0x00000000FFFFFFFFULL},
{0x0000000000000002ULL,0xFFFFFFFE00000000ULL,
0xFFFFFFFFFFFFFFFFULL,0x00000001FFFFFFFFULL} /* this one is "carry-full" */
};
static const BN_ULONG _nist_p_224_sqr[] = {
0x0000000000000001ULL,0xFFFFFFFE00000000ULL,
0xFFFFFFFFFFFFFFFFULL,0x0000000200000000ULL,
0x0000000000000000ULL,0xFFFFFFFFFFFFFFFEULL,
0xFFFFFFFFFFFFFFFFULL
};
static const BN_ULONG _nist_p_256[][BN_NIST_256_TOP] = {
{0xFFFFFFFFFFFFFFFFULL,0x00000000FFFFFFFFULL,
0x0000000000000000ULL,0xFFFFFFFF00000001ULL},
{0xFFFFFFFFFFFFFFFEULL,0x00000001FFFFFFFFULL,
0x0000000000000000ULL,0xFFFFFFFE00000002ULL},
{0xFFFFFFFFFFFFFFFDULL,0x00000002FFFFFFFFULL,
0x0000000000000000ULL,0xFFFFFFFD00000003ULL},
{0xFFFFFFFFFFFFFFFCULL,0x00000003FFFFFFFFULL,
0x0000000000000000ULL,0xFFFFFFFC00000004ULL},
{0xFFFFFFFFFFFFFFFBULL,0x00000004FFFFFFFFULL,
0x0000000000000000ULL,0xFFFFFFFB00000005ULL},
};
static const BN_ULONG _nist_p_256_sqr[] = {
0x0000000000000001ULL,0xFFFFFFFE00000000ULL,
0xFFFFFFFFFFFFFFFFULL,0x00000001FFFFFFFEULL,
0x00000001FFFFFFFEULL,0x00000001FFFFFFFEULL,
0xFFFFFFFE00000001ULL,0xFFFFFFFE00000002ULL
};
static const BN_ULONG _nist_p_384[][BN_NIST_384_TOP] = {
{0x00000000FFFFFFFFULL,0xFFFFFFFF00000000ULL,0xFFFFFFFFFFFFFFFEULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL},
{0x00000001FFFFFFFEULL,0xFFFFFFFE00000000ULL,0xFFFFFFFFFFFFFFFDULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL},
{0x00000002FFFFFFFDULL,0xFFFFFFFD00000000ULL,0xFFFFFFFFFFFFFFFCULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL},
{0x00000003FFFFFFFCULL,0xFFFFFFFC00000000ULL,0xFFFFFFFFFFFFFFFBULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL},
{0x00000004FFFFFFFBULL,0xFFFFFFFB00000000ULL,0xFFFFFFFFFFFFFFFAULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL},
};
static const BN_ULONG _nist_p_384_sqr[] = {
0xFFFFFFFE00000001ULL,0x0000000200000000ULL,0xFFFFFFFE00000000ULL,
0x0000000200000000ULL,0x0000000000000001ULL,0x0000000000000000ULL,
0x00000001FFFFFFFEULL,0xFFFFFFFE00000000ULL,0xFFFFFFFFFFFFFFFDULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL
};
static const BN_ULONG _nist_p_521[] =
{0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
0x00000000000001FFULL};
static const BN_ULONG _nist_p_521_sqr[] = {
0x0000000000000001ULL,0x0000000000000000ULL,0x0000000000000000ULL,
0x0000000000000000ULL,0x0000000000000000ULL,0x0000000000000000ULL,
0x0000000000000000ULL,0x0000000000000000ULL,0xFFFFFFFFFFFFFC00ULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
0xFFFFFFFFFFFFFFFFULL,0x000000000003FFFFULL
};
#elif BN_BITS2 == 32
static const BN_ULONG _nist_p_192[][BN_NIST_192_TOP] = {
{0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFE,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
{0xFFFFFFFE,0xFFFFFFFF,0xFFFFFFFD,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
{0xFFFFFFFD,0xFFFFFFFF,0xFFFFFFFC,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}
};
static const BN_ULONG _nist_p_192_sqr[] = {
0x00000001,0x00000000,0x00000002,0x00000000,0x00000001,0x00000000,
0xFFFFFFFE,0xFFFFFFFF,0xFFFFFFFD,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF
};
static const BN_ULONG _nist_p_224[][BN_NIST_224_TOP] = {
{0x00000001,0x00000000,0x00000000,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
{0x00000002,0x00000000,0x00000000,0xFFFFFFFE,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}
};
static const BN_ULONG _nist_p_224_sqr[] = {
0x00000001,0x00000000,0x00000000,0xFFFFFFFE,
0xFFFFFFFF,0xFFFFFFFF,0x00000000,0x00000002,
0x00000000,0x00000000,0xFFFFFFFE,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF
};
static const BN_ULONG _nist_p_256[][BN_NIST_256_TOP] = {
{0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0x00000000,
0x00000000,0x00000000,0x00000001,0xFFFFFFFF},
{0xFFFFFFFE,0xFFFFFFFF,0xFFFFFFFF,0x00000001,
0x00000000,0x00000000,0x00000002,0xFFFFFFFE},
{0xFFFFFFFD,0xFFFFFFFF,0xFFFFFFFF,0x00000002,
0x00000000,0x00000000,0x00000003,0xFFFFFFFD},
{0xFFFFFFFC,0xFFFFFFFF,0xFFFFFFFF,0x00000003,
0x00000000,0x00000000,0x00000004,0xFFFFFFFC},
{0xFFFFFFFB,0xFFFFFFFF,0xFFFFFFFF,0x00000004,
0x00000000,0x00000000,0x00000005,0xFFFFFFFB},
};
static const BN_ULONG _nist_p_256_sqr[] = {
0x00000001,0x00000000,0x00000000,0xFFFFFFFE,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFE,0x00000001,
0xFFFFFFFE,0x00000001,0xFFFFFFFE,0x00000001,
0x00000001,0xFFFFFFFE,0x00000002,0xFFFFFFFE
};
static const BN_ULONG _nist_p_384[][BN_NIST_384_TOP] = {
{0xFFFFFFFF,0x00000000,0x00000000,0xFFFFFFFF,0xFFFFFFFE,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
{0xFFFFFFFE,0x00000001,0x00000000,0xFFFFFFFE,0xFFFFFFFD,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
{0xFFFFFFFD,0x00000002,0x00000000,0xFFFFFFFD,0xFFFFFFFC,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
{0xFFFFFFFC,0x00000003,0x00000000,0xFFFFFFFC,0xFFFFFFFB,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
{0xFFFFFFFB,0x00000004,0x00000000,0xFFFFFFFB,0xFFFFFFFA,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF},
};
static const BN_ULONG _nist_p_384_sqr[] = {
0x00000001,0xFFFFFFFE,0x00000000,0x00000002,0x00000000,0xFFFFFFFE,
0x00000000,0x00000002,0x00000001,0x00000000,0x00000000,0x00000000,
0xFFFFFFFE,0x00000001,0x00000000,0xFFFFFFFE,0xFFFFFFFD,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF
};
static const BN_ULONG _nist_p_521[] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0x000001FF};
static const BN_ULONG _nist_p_521_sqr[] = {
0x00000001,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
0x00000000,0x00000000,0x00000000,0x00000000,0xFFFFFC00,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0x0003FFFF
};
#else
#error "unsupported BN_BITS2"
#endif
static const BIGNUM _bignum_nist_p_192 =
{
(BN_ULONG *)_nist_p_192[0],
BN_NIST_192_TOP,
BN_NIST_192_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_nist_p_224 =
{
(BN_ULONG *)_nist_p_224[0],
BN_NIST_224_TOP,
BN_NIST_224_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_nist_p_256 =
{
(BN_ULONG *)_nist_p_256[0],
BN_NIST_256_TOP,
BN_NIST_256_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_nist_p_384 =
{
(BN_ULONG *)_nist_p_384[0],
BN_NIST_384_TOP,
BN_NIST_384_TOP,
0,
BN_FLG_STATIC_DATA
};
static const BIGNUM _bignum_nist_p_521 =
{
(BN_ULONG *)_nist_p_521,
BN_NIST_521_TOP,
BN_NIST_521_TOP,
0,
BN_FLG_STATIC_DATA
};
const BIGNUM *BN_get0_nist_prime_192(void)
{
return &_bignum_nist_p_192;
}
const BIGNUM *BN_get0_nist_prime_224(void)
{
return &_bignum_nist_p_224;
}
const BIGNUM *BN_get0_nist_prime_256(void)
{
return &_bignum_nist_p_256;
}
const BIGNUM *BN_get0_nist_prime_384(void)
{
return &_bignum_nist_p_384;
}
const BIGNUM *BN_get0_nist_prime_521(void)
{
return &_bignum_nist_p_521;
}
static void nist_cp_bn_0(BN_ULONG *buf, BN_ULONG *a, int top, int max)
{
int i;
BN_ULONG *_tmp1 = (buf), *_tmp2 = (a);
#ifdef BN_DEBUG
OPENSSL_assert(top <= max);
#endif
for (i = (top); i != 0; i--)
*_tmp1++ = *_tmp2++;
for (i = (max) - (top); i != 0; i--)
*_tmp1++ = (BN_ULONG) 0;
}
static void nist_cp_bn(BN_ULONG *buf, BN_ULONG *a, int top)
{
int i;
BN_ULONG *_tmp1 = (buf), *_tmp2 = (a);
for (i = (top); i != 0; i--)
*_tmp1++ = *_tmp2++;
}
#if BN_BITS2 == 64
#define bn_cp_64(to, n, from, m) (to)[n] = (m>=0)?((from)[m]):0;
#define bn_64_set_0(to, n) (to)[n] = (BN_ULONG)0;
/*
* two following macros are implemented under assumption that they
* are called in a sequence with *ascending* n, i.e. as they are...
*/
#define bn_cp_32_naked(to, n, from, m) (((n)&1)?(to[(n)/2]|=((m)&1)?(from[(m)/2]&BN_MASK2h):(from[(m)/2]<<32))\
:(to[(n)/2] =((m)&1)?(from[(m)/2]>>32):(from[(m)/2]&BN_MASK2l)))
#define bn_32_set_0(to, n) (((n)&1)?(to[(n)/2]&=BN_MASK2l):(to[(n)/2]=0));
#define bn_cp_32(to,n,from,m) ((m)>=0)?bn_cp_32_naked(to,n,from,m):bn_32_set_0(to,n)
#else
#define bn_cp_64(to, n, from, m) \
{ \
bn_cp_32(to, (n)*2, from, (m)*2); \
bn_cp_32(to, (n)*2+1, from, (m)*2+1); \
}
#define bn_64_set_0(to, n) \
{ \
bn_32_set_0(to, (n)*2); \
bn_32_set_0(to, (n)*2+1); \
}
#if BN_BITS2 == 32
#define bn_cp_32(to, n, from, m) (to)[n] = (m>=0)?((from)[m]):0;
#define bn_32_set_0(to, n) (to)[n] = (BN_ULONG)0;
#endif
#endif /* BN_BITS2 != 64 */
#define nist_set_192(to, from, a1, a2, a3) \
{ \
bn_cp_64(to, 0, from, (a3) - 3) \
bn_cp_64(to, 1, from, (a2) - 3) \
bn_cp_64(to, 2, from, (a1) - 3) \
}
int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
int top = a->top, i;
int carry;
register BN_ULONG *r_d, *a_d = a->d;
BN_ULONG t_d[BN_NIST_192_TOP],
buf[BN_NIST_192_TOP],
c_d[BN_NIST_192_TOP],
*res;
size_t mask;
static const BIGNUM _bignum_nist_p_192_sqr = {
(BN_ULONG *)_nist_p_192_sqr,
sizeof(_nist_p_192_sqr)/sizeof(_nist_p_192_sqr[0]),
sizeof(_nist_p_192_sqr)/sizeof(_nist_p_192_sqr[0]),
0,BN_FLG_STATIC_DATA };
field = &_bignum_nist_p_192; /* just to make sure */
if (BN_is_negative(a) || BN_ucmp(a,&_bignum_nist_p_192_sqr)>=0)
return BN_nnmod(r, a, field, ctx);
i = BN_ucmp(field, a);
if (i == 0)
{
BN_zero(r);
return 1;
}
else if (i > 0)
return (r == a) ? 1 : (BN_copy(r ,a) != NULL);
if (r != a)
{
if (!bn_wexpand(r, BN_NIST_192_TOP))
return 0;
r_d = r->d;
nist_cp_bn(r_d, a_d, BN_NIST_192_TOP);
}
else
r_d = a_d;
nist_cp_bn_0(buf, a_d + BN_NIST_192_TOP, top - BN_NIST_192_TOP, BN_NIST_192_TOP);
nist_set_192(t_d, buf, 0, 3, 3);
carry = (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP);
nist_set_192(t_d, buf, 4, 4, 0);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP);
nist_set_192(t_d, buf, 5, 5, 5)
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP);
if (carry > 0)
carry = (int)bn_sub_words(r_d,r_d,_nist_p_192[carry-1],BN_NIST_192_TOP);
else
carry = 1;
/*
* we need 'if (carry==0 || result>=modulus) result-=modulus;'
* as comparison implies subtraction, we can write
* 'tmp=result-modulus; if (!carry || !borrow) result=tmp;'
* this is what happens below, but without explicit if:-) a.
*/
mask = 0-(size_t)bn_sub_words(c_d,r_d,_nist_p_192[0],BN_NIST_192_TOP);
mask &= 0-(size_t)carry;
res = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
nist_cp_bn(r_d, res, BN_NIST_192_TOP);
r->top = BN_NIST_192_TOP;
bn_correct_top(r);
return 1;
}
typedef BN_ULONG (*bn_addsub_f)(BN_ULONG *,const BN_ULONG *,const BN_ULONG *,int);
#define nist_set_224(to, from, a1, a2, a3, a4, a5, a6, a7) \
{ \
bn_cp_32(to, 0, from, (a7) - 7) \
bn_cp_32(to, 1, from, (a6) - 7) \
bn_cp_32(to, 2, from, (a5) - 7) \
bn_cp_32(to, 3, from, (a4) - 7) \
bn_cp_32(to, 4, from, (a3) - 7) \
bn_cp_32(to, 5, from, (a2) - 7) \
bn_cp_32(to, 6, from, (a1) - 7) \
}
int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
int top = a->top, i;
int carry;
BN_ULONG *r_d, *a_d = a->d;
BN_ULONG t_d[BN_NIST_224_TOP],
buf[BN_NIST_224_TOP],
c_d[BN_NIST_224_TOP],
*res;
size_t mask;
union { bn_addsub_f f; size_t p; } u;
static const BIGNUM _bignum_nist_p_224_sqr = {
(BN_ULONG *)_nist_p_224_sqr,
sizeof(_nist_p_224_sqr)/sizeof(_nist_p_224_sqr[0]),
sizeof(_nist_p_224_sqr)/sizeof(_nist_p_224_sqr[0]),
0,BN_FLG_STATIC_DATA };
field = &_bignum_nist_p_224; /* just to make sure */
if (BN_is_negative(a) || BN_ucmp(a,&_bignum_nist_p_224_sqr)>=0)
return BN_nnmod(r, a, field, ctx);
i = BN_ucmp(field, a);
if (i == 0)
{
BN_zero(r);
return 1;
}
else if (i > 0)
return (r == a)? 1 : (BN_copy(r ,a) != NULL);
if (r != a)
{
if (!bn_wexpand(r, BN_NIST_224_TOP))
return 0;
r_d = r->d;
nist_cp_bn(r_d, a_d, BN_NIST_224_TOP);
}
else
r_d = a_d;
#if BN_BITS2==64
/* copy upper 256 bits of 448 bit number ... */
nist_cp_bn_0(t_d, a_d + (BN_NIST_224_TOP-1), top - (BN_NIST_224_TOP-1), BN_NIST_224_TOP);
/* ... and right shift by 32 to obtain upper 224 bits */
nist_set_224(buf, t_d, 14, 13, 12, 11, 10, 9, 8);
/* truncate lower part to 224 bits too */
r_d[BN_NIST_224_TOP-1] &= BN_MASK2l;
#else
nist_cp_bn_0(buf, a_d + BN_NIST_224_TOP, top - BN_NIST_224_TOP, BN_NIST_224_TOP);
#endif
nist_set_224(t_d, buf, 10, 9, 8, 7, 0, 0, 0);
carry = (int)bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP);
nist_set_224(t_d, buf, 0, 13, 12, 11, 0, 0, 0);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP);
nist_set_224(t_d, buf, 13, 12, 11, 10, 9, 8, 7);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP);
nist_set_224(t_d, buf, 0, 0, 0, 0, 13, 12, 11);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP);
#if BN_BITS2==64
carry = (int)(r_d[BN_NIST_224_TOP-1]>>32);
#endif
u.f = bn_sub_words;
if (carry > 0)
{
carry = (int)bn_sub_words(r_d,r_d,_nist_p_224[carry-1],BN_NIST_224_TOP);
#if BN_BITS2==64
carry=(int)(~(r_d[BN_NIST_224_TOP-1]>>32))&1;
#endif
}
else if (carry < 0)
{
/* it's a bit more comlicated logic in this case.
* if bn_add_words yields no carry, then result
* has to be adjusted by unconditionally *adding*
* the modulus. but if it does, then result has
* to be compared to the modulus and conditionally
* adjusted by *subtracting* the latter. */
carry = (int)bn_add_words(r_d,r_d,_nist_p_224[-carry-1],BN_NIST_224_TOP);
mask = 0-(size_t)carry;
u.p = ((size_t)bn_sub_words&mask) | ((size_t)bn_add_words&~mask);
}
else
carry = 1;
/* otherwise it's effectively same as in BN_nist_mod_192... */
mask = 0-(size_t)(*u.f)(c_d,r_d,_nist_p_224[0],BN_NIST_224_TOP);
mask &= 0-(size_t)carry;
res = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
nist_cp_bn(r_d, res, BN_NIST_224_TOP);
r->top = BN_NIST_224_TOP;
bn_correct_top(r);
return 1;
}
#define nist_set_256(to, from, a1, a2, a3, a4, a5, a6, a7, a8) \
{ \
bn_cp_32(to, 0, from, (a8) - 8) \
bn_cp_32(to, 1, from, (a7) - 8) \
bn_cp_32(to, 2, from, (a6) - 8) \
bn_cp_32(to, 3, from, (a5) - 8) \
bn_cp_32(to, 4, from, (a4) - 8) \
bn_cp_32(to, 5, from, (a3) - 8) \
bn_cp_32(to, 6, from, (a2) - 8) \
bn_cp_32(to, 7, from, (a1) - 8) \
}
int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
int i, top = a->top;
int carry = 0;
register BN_ULONG *a_d = a->d, *r_d;
BN_ULONG t_d[BN_NIST_256_TOP],
buf[BN_NIST_256_TOP],
c_d[BN_NIST_256_TOP],
*res;
size_t mask;
union { bn_addsub_f f; size_t p; } u;
static const BIGNUM _bignum_nist_p_256_sqr = {
(BN_ULONG *)_nist_p_256_sqr,
sizeof(_nist_p_256_sqr)/sizeof(_nist_p_256_sqr[0]),
sizeof(_nist_p_256_sqr)/sizeof(_nist_p_256_sqr[0]),
0,BN_FLG_STATIC_DATA };
field = &_bignum_nist_p_256; /* just to make sure */
if (BN_is_negative(a) || BN_ucmp(a,&_bignum_nist_p_256_sqr)>=0)
return BN_nnmod(r, a, field, ctx);
i = BN_ucmp(field, a);
if (i == 0)
{
BN_zero(r);
return 1;
}
else if (i > 0)
return (r == a)? 1 : (BN_copy(r ,a) != NULL);
if (r != a)
{
if (!bn_wexpand(r, BN_NIST_256_TOP))
return 0;
r_d = r->d;
nist_cp_bn(r_d, a_d, BN_NIST_256_TOP);
}
else
r_d = a_d;
nist_cp_bn_0(buf, a_d + BN_NIST_256_TOP, top - BN_NIST_256_TOP, BN_NIST_256_TOP);
/*S1*/
nist_set_256(t_d, buf, 15, 14, 13, 12, 11, 0, 0, 0);
/*S2*/
nist_set_256(c_d, buf, 0, 15, 14, 13, 12, 0, 0, 0);
carry = (int)bn_add_words(t_d, t_d, c_d, BN_NIST_256_TOP);
/* left shift */
{
register BN_ULONG *ap,t,c;
ap = t_d;
c=0;
for (i = BN_NIST_256_TOP; i != 0; --i)
{
t= *ap;
*(ap++)=((t<<1)|c)&BN_MASK2;
c=(t & BN_TBIT)?1:0;
}
carry <<= 1;
carry |= c;
}
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP);
/*S3*/
nist_set_256(t_d, buf, 15, 14, 0, 0, 0, 10, 9, 8);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP);
/*S4*/
nist_set_256(t_d, buf, 8, 13, 15, 14, 13, 11, 10, 9);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP);
/*D1*/
nist_set_256(t_d, buf, 10, 8, 0, 0, 0, 13, 12, 11);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
/*D2*/
nist_set_256(t_d, buf, 11, 9, 0, 0, 15, 14, 13, 12);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
/*D3*/
nist_set_256(t_d, buf, 12, 0, 10, 9, 8, 15, 14, 13);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
/*D4*/
nist_set_256(t_d, buf, 13, 0, 11, 10, 9, 0, 15, 14);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
/* see BN_nist_mod_224 for explanation */
u.f = bn_sub_words;
if (carry > 0)
carry = (int)bn_sub_words(r_d,r_d,_nist_p_256[carry-1],BN_NIST_256_TOP);
else if (carry < 0)
{
carry = (int)bn_add_words(r_d,r_d,_nist_p_256[-carry-1],BN_NIST_256_TOP);
mask = 0-(size_t)carry;
u.p = ((size_t)bn_sub_words&mask) | ((size_t)bn_add_words&~mask);
}
else
carry = 1;
mask = 0-(size_t)(*u.f)(c_d,r_d,_nist_p_256[0],BN_NIST_256_TOP);
mask &= 0-(size_t)carry;
res = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
nist_cp_bn(r_d, res, BN_NIST_256_TOP);
r->top = BN_NIST_256_TOP;
bn_correct_top(r);
return 1;
}
#define nist_set_384(to,from,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12) \
{ \
bn_cp_32(to, 0, from, (a12) - 12) \
bn_cp_32(to, 1, from, (a11) - 12) \
bn_cp_32(to, 2, from, (a10) - 12) \
bn_cp_32(to, 3, from, (a9) - 12) \
bn_cp_32(to, 4, from, (a8) - 12) \
bn_cp_32(to, 5, from, (a7) - 12) \
bn_cp_32(to, 6, from, (a6) - 12) \
bn_cp_32(to, 7, from, (a5) - 12) \
bn_cp_32(to, 8, from, (a4) - 12) \
bn_cp_32(to, 9, from, (a3) - 12) \
bn_cp_32(to, 10, from, (a2) - 12) \
bn_cp_32(to, 11, from, (a1) - 12) \
}
int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
int i, top = a->top;
int carry = 0;
register BN_ULONG *r_d, *a_d = a->d;
BN_ULONG t_d[BN_NIST_384_TOP],
buf[BN_NIST_384_TOP],
c_d[BN_NIST_384_TOP],
*res;
size_t mask;
union { bn_addsub_f f; size_t p; } u;
static const BIGNUM _bignum_nist_p_384_sqr = {
(BN_ULONG *)_nist_p_384_sqr,
sizeof(_nist_p_384_sqr)/sizeof(_nist_p_384_sqr[0]),
sizeof(_nist_p_384_sqr)/sizeof(_nist_p_384_sqr[0]),
0,BN_FLG_STATIC_DATA };
field = &_bignum_nist_p_384; /* just to make sure */
if (BN_is_negative(a) || BN_ucmp(a,&_bignum_nist_p_384_sqr)>=0)
return BN_nnmod(r, a, field, ctx);
i = BN_ucmp(field, a);
if (i == 0)
{
BN_zero(r);
return 1;
}
else if (i > 0)
return (r == a)? 1 : (BN_copy(r ,a) != NULL);
if (r != a)
{
if (!bn_wexpand(r, BN_NIST_384_TOP))
return 0;
r_d = r->d;
nist_cp_bn(r_d, a_d, BN_NIST_384_TOP);
}
else
r_d = a_d;
nist_cp_bn_0(buf, a_d + BN_NIST_384_TOP, top - BN_NIST_384_TOP, BN_NIST_384_TOP);
/*S1*/
nist_set_256(t_d, buf, 0, 0, 0, 0, 0, 23-4, 22-4, 21-4);
/* left shift */
{
register BN_ULONG *ap,t,c;
ap = t_d;
c=0;
for (i = 3; i != 0; --i)
{
t= *ap;
*(ap++)=((t<<1)|c)&BN_MASK2;
c=(t & BN_TBIT)?1:0;
}
*ap=c;
}
carry = (int)bn_add_words(r_d+(128/BN_BITS2), r_d+(128/BN_BITS2),
t_d, BN_NIST_256_TOP);
/*S2 */
carry += (int)bn_add_words(r_d, r_d, buf, BN_NIST_384_TOP);
/*S3*/
nist_set_384(t_d,buf,20,19,18,17,16,15,14,13,12,23,22,21);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
/*S4*/
nist_set_384(t_d,buf,19,18,17,16,15,14,13,12,20,0,23,0);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
/*S5*/
nist_set_384(t_d, buf,0,0,0,0,23,22,21,20,0,0,0,0);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
/*S6*/
nist_set_384(t_d,buf,0,0,0,0,0,0,23,22,21,0,0,20);
carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
/*D1*/
nist_set_384(t_d,buf,22,21,20,19,18,17,16,15,14,13,12,23);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP);
/*D2*/
nist_set_384(t_d,buf,0,0,0,0,0,0,0,23,22,21,20,0);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP);
/*D3*/
nist_set_384(t_d,buf,0,0,0,0,0,0,0,23,23,0,0,0);
carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP);
/* see BN_nist_mod_224 for explanation */
u.f = bn_sub_words;
if (carry > 0)
carry = (int)bn_sub_words(r_d,r_d,_nist_p_384[carry-1],BN_NIST_384_TOP);
else if (carry < 0)
{
carry = (int)bn_add_words(r_d,r_d,_nist_p_384[-carry-1],BN_NIST_384_TOP);
mask = 0-(size_t)carry;
u.p = ((size_t)bn_sub_words&mask) | ((size_t)bn_add_words&~mask);
}
else
carry = 1;
mask = 0-(size_t)(*u.f)(c_d,r_d,_nist_p_384[0],BN_NIST_384_TOP);
mask &= 0-(size_t)carry;
res = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
nist_cp_bn(r_d, res, BN_NIST_384_TOP);
r->top = BN_NIST_384_TOP;
bn_correct_top(r);
return 1;
}
#define BN_NIST_521_RSHIFT (521%BN_BITS2)
#define BN_NIST_521_LSHIFT (BN_BITS2-BN_NIST_521_RSHIFT)
#define BN_NIST_521_TOP_MASK ((BN_ULONG)BN_MASK2>>BN_NIST_521_LSHIFT)
int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
int top = a->top, i;
BN_ULONG *r_d, *a_d = a->d,
t_d[BN_NIST_521_TOP],
val,tmp,*res;
size_t mask;
static const BIGNUM _bignum_nist_p_521_sqr = {
(BN_ULONG *)_nist_p_521_sqr,
sizeof(_nist_p_521_sqr)/sizeof(_nist_p_521_sqr[0]),
sizeof(_nist_p_521_sqr)/sizeof(_nist_p_521_sqr[0]),
0,BN_FLG_STATIC_DATA };
field = &_bignum_nist_p_521; /* just to make sure */
if (BN_is_negative(a) || BN_ucmp(a,&_bignum_nist_p_521_sqr)>=0)
return BN_nnmod(r, a, field, ctx);
i = BN_ucmp(field, a);
if (i == 0)
{
BN_zero(r);
return 1;
}
else if (i > 0)
return (r == a)? 1 : (BN_copy(r ,a) != NULL);
if (r != a)
{
if (!bn_wexpand(r,BN_NIST_521_TOP))
return 0;
r_d = r->d;
nist_cp_bn(r_d,a_d, BN_NIST_521_TOP);
}
else
r_d = a_d;
/* upper 521 bits, copy ... */
nist_cp_bn_0(t_d,a_d + (BN_NIST_521_TOP-1), top - (BN_NIST_521_TOP-1),BN_NIST_521_TOP);
/* ... and right shift */
for (val=t_d[0],i=0; i<BN_NIST_521_TOP-1; i++)
{
tmp = val>>BN_NIST_521_RSHIFT;
val = t_d[i+1];
t_d[i] = (tmp | val<<BN_NIST_521_LSHIFT) & BN_MASK2;
}
t_d[i] = val>>BN_NIST_521_RSHIFT;
/* lower 521 bits */
r_d[i] &= BN_NIST_521_TOP_MASK;
bn_add_words(r_d,r_d,t_d,BN_NIST_521_TOP);
mask = 0-(size_t)bn_sub_words(t_d,r_d,_nist_p_521,BN_NIST_521_TOP);
res = (BN_ULONG *)(((size_t)t_d&~mask) | ((size_t)r_d&mask));
nist_cp_bn(r_d,res,BN_NIST_521_TOP);
r->top = BN_NIST_521_TOP;
bn_correct_top(r);
return 1;
}

View file

@ -0,0 +1,494 @@
/* crypto/bn/bn_prime.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include "bn_lcl.h"
#include <openssl/rand.h>
/* NB: these functions have been "upgraded", the deprecated versions (which are
* compatibility wrappers using these functions) are in bn_depr.c.
* - Geoff
*/
/* The quick sieve algorithm approach to weeding out primes is
* Philip Zimmermann's, as implemented in PGP. I have had a read of
* his comments and implemented my own version.
*/
#include "bn_prime.h"
static int witness(BIGNUM *w, const BIGNUM *a, const BIGNUM *a1,
const BIGNUM *a1_odd, int k, BN_CTX *ctx, BN_MONT_CTX *mont);
static int probable_prime(BIGNUM *rnd, int bits);
static int probable_prime_dh(BIGNUM *rnd, int bits,
const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
static int probable_prime_dh_safe(BIGNUM *rnd, int bits,
const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
int BN_GENCB_call(BN_GENCB *cb, int a, int b)
{
/* No callback means continue */
if(!cb) return 1;
switch(cb->ver)
{
case 1:
/* Deprecated-style callbacks */
if(!cb->cb.cb_1)
return 1;
cb->cb.cb_1(a, b, cb->arg);
return 1;
case 2:
/* New-style callbacks */
return cb->cb.cb_2(a, b, cb);
default:
break;
}
/* Unrecognised callback type */
return 0;
}
int BN_generate_prime_ex(BIGNUM *ret, int bits, int safe,
const BIGNUM *add, const BIGNUM *rem, BN_GENCB *cb)
{
BIGNUM *t;
int found=0;
int i,j,c1=0;
BN_CTX *ctx;
int checks = BN_prime_checks_for_size(bits);
ctx=BN_CTX_new();
if (ctx == NULL) goto err;
BN_CTX_start(ctx);
t = BN_CTX_get(ctx);
if(!t) goto err;
loop:
/* make a random number and set the top and bottom bits */
if (add == NULL)
{
if (!probable_prime(ret,bits)) goto err;
}
else
{
if (safe)
{
if (!probable_prime_dh_safe(ret,bits,add,rem,ctx))
goto err;
}
else
{
if (!probable_prime_dh(ret,bits,add,rem,ctx))
goto err;
}
}
/* if (BN_mod_word(ret,(BN_ULONG)3) == 1) goto loop; */
if(!BN_GENCB_call(cb, 0, c1++))
/* aborted */
goto err;
if (!safe)
{
i=BN_is_prime_fasttest_ex(ret,checks,ctx,0,cb);
if (i == -1) goto err;
if (i == 0) goto loop;
}
else
{
/* for "safe prime" generation,
* check that (p-1)/2 is prime.
* Since a prime is odd, We just
* need to divide by 2 */
if (!BN_rshift1(t,ret)) goto err;
for (i=0; i<checks; i++)
{
j=BN_is_prime_fasttest_ex(ret,1,ctx,0,cb);
if (j == -1) goto err;
if (j == 0) goto loop;
j=BN_is_prime_fasttest_ex(t,1,ctx,0,cb);
if (j == -1) goto err;
if (j == 0) goto loop;
if(!BN_GENCB_call(cb, 2, c1-1))
goto err;
/* We have a safe prime test pass */
}
}
/* we have a prime :-) */
found = 1;
err:
if (ctx != NULL)
{
BN_CTX_end(ctx);
BN_CTX_free(ctx);
}
bn_check_top(ret);
return found;
}
int BN_is_prime_ex(const BIGNUM *a, int checks, BN_CTX *ctx_passed, BN_GENCB *cb)
{
return BN_is_prime_fasttest_ex(a, checks, ctx_passed, 0, cb);
}
int BN_is_prime_fasttest_ex(const BIGNUM *a, int checks, BN_CTX *ctx_passed,
int do_trial_division, BN_GENCB *cb)
{
int i, j, ret = -1;
int k;
BN_CTX *ctx = NULL;
BIGNUM *A1, *A1_odd, *check; /* taken from ctx */
BN_MONT_CTX *mont = NULL;
const BIGNUM *A = NULL;
if (BN_cmp(a, BN_value_one()) <= 0)
return 0;
if (checks == BN_prime_checks)
checks = BN_prime_checks_for_size(BN_num_bits(a));
/* first look for small factors */
if (!BN_is_odd(a))
/* a is even => a is prime if and only if a == 2 */
return BN_is_word(a, 2);
if (do_trial_division)
{
for (i = 1; i < NUMPRIMES; i++)
if (BN_mod_word(a, primes[i]) == 0)
return 0;
if(!BN_GENCB_call(cb, 1, -1))
goto err;
}
if (ctx_passed != NULL)
ctx = ctx_passed;
else
if ((ctx=BN_CTX_new()) == NULL)
goto err;
BN_CTX_start(ctx);
/* A := abs(a) */
if (a->neg)
{
BIGNUM *t;
if ((t = BN_CTX_get(ctx)) == NULL) goto err;
BN_copy(t, a);
t->neg = 0;
A = t;
}
else
A = a;
A1 = BN_CTX_get(ctx);
A1_odd = BN_CTX_get(ctx);
check = BN_CTX_get(ctx);
if (check == NULL) goto err;
/* compute A1 := A - 1 */
if (!BN_copy(A1, A))
goto err;
if (!BN_sub_word(A1, 1))
goto err;
if (BN_is_zero(A1))
{
ret = 0;
goto err;
}
/* write A1 as A1_odd * 2^k */
k = 1;
while (!BN_is_bit_set(A1, k))
k++;
if (!BN_rshift(A1_odd, A1, k))
goto err;
/* Montgomery setup for computations mod A */
mont = BN_MONT_CTX_new();
if (mont == NULL)
goto err;
if (!BN_MONT_CTX_set(mont, A, ctx))
goto err;
for (i = 0; i < checks; i++)
{
if (!BN_pseudo_rand_range(check, A1))
goto err;
if (!BN_add_word(check, 1))
goto err;
/* now 1 <= check < A */
j = witness(check, A, A1, A1_odd, k, ctx, mont);
if (j == -1) goto err;
if (j)
{
ret=0;
goto err;
}
if(!BN_GENCB_call(cb, 1, i))
goto err;
}
ret=1;
err:
if (ctx != NULL)
{
BN_CTX_end(ctx);
if (ctx_passed == NULL)
BN_CTX_free(ctx);
}
if (mont != NULL)
BN_MONT_CTX_free(mont);
return(ret);
}
static int witness(BIGNUM *w, const BIGNUM *a, const BIGNUM *a1,
const BIGNUM *a1_odd, int k, BN_CTX *ctx, BN_MONT_CTX *mont)
{
if (!BN_mod_exp_mont(w, w, a1_odd, a, ctx, mont)) /* w := w^a1_odd mod a */
return -1;
if (BN_is_one(w))
return 0; /* probably prime */
if (BN_cmp(w, a1) == 0)
return 0; /* w == -1 (mod a), 'a' is probably prime */
while (--k)
{
if (!BN_mod_mul(w, w, w, a, ctx)) /* w := w^2 mod a */
return -1;
if (BN_is_one(w))
return 1; /* 'a' is composite, otherwise a previous 'w' would
* have been == -1 (mod 'a') */
if (BN_cmp(w, a1) == 0)
return 0; /* w == -1 (mod a), 'a' is probably prime */
}
/* If we get here, 'w' is the (a-1)/2-th power of the original 'w',
* and it is neither -1 nor +1 -- so 'a' cannot be prime */
bn_check_top(w);
return 1;
}
static int probable_prime(BIGNUM *rnd, int bits)
{
int i;
prime_t mods[NUMPRIMES];
BN_ULONG delta,maxdelta;
again:
if (!BN_rand(rnd,bits,1,1)) return(0);
/* we now have a random number 'rand' to test. */
for (i=1; i<NUMPRIMES; i++)
mods[i]=(prime_t)BN_mod_word(rnd,(BN_ULONG)primes[i]);
maxdelta=BN_MASK2 - primes[NUMPRIMES-1];
delta=0;
loop: for (i=1; i<NUMPRIMES; i++)
{
/* check that rnd is not a prime and also
* that gcd(rnd-1,primes) == 1 (except for 2) */
if (((mods[i]+delta)%primes[i]) <= 1)
{
delta+=2;
if (delta > maxdelta) goto again;
goto loop;
}
}
if (!BN_add_word(rnd,delta)) return(0);
bn_check_top(rnd);
return(1);
}
static int probable_prime_dh(BIGNUM *rnd, int bits,
const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx)
{
int i,ret=0;
BIGNUM *t1;
BN_CTX_start(ctx);
if ((t1 = BN_CTX_get(ctx)) == NULL) goto err;
if (!BN_rand(rnd,bits,0,1)) goto err;
/* we need ((rnd-rem) % add) == 0 */
if (!BN_mod(t1,rnd,add,ctx)) goto err;
if (!BN_sub(rnd,rnd,t1)) goto err;
if (rem == NULL)
{ if (!BN_add_word(rnd,1)) goto err; }
else
{ if (!BN_add(rnd,rnd,rem)) goto err; }
/* we now have a random number 'rand' to test. */
loop: for (i=1; i<NUMPRIMES; i++)
{
/* check that rnd is a prime */
if (BN_mod_word(rnd,(BN_ULONG)primes[i]) <= 1)
{
if (!BN_add(rnd,rnd,add)) goto err;
goto loop;
}
}
ret=1;
err:
BN_CTX_end(ctx);
bn_check_top(rnd);
return(ret);
}
static int probable_prime_dh_safe(BIGNUM *p, int bits, const BIGNUM *padd,
const BIGNUM *rem, BN_CTX *ctx)
{
int i,ret=0;
BIGNUM *t1,*qadd,*q;
bits--;
BN_CTX_start(ctx);
t1 = BN_CTX_get(ctx);
q = BN_CTX_get(ctx);
qadd = BN_CTX_get(ctx);
if (qadd == NULL) goto err;
if (!BN_rshift1(qadd,padd)) goto err;
if (!BN_rand(q,bits,0,1)) goto err;
/* we need ((rnd-rem) % add) == 0 */
if (!BN_mod(t1,q,qadd,ctx)) goto err;
if (!BN_sub(q,q,t1)) goto err;
if (rem == NULL)
{ if (!BN_add_word(q,1)) goto err; }
else
{
if (!BN_rshift1(t1,rem)) goto err;
if (!BN_add(q,q,t1)) goto err;
}
/* we now have a random number 'rand' to test. */
if (!BN_lshift1(p,q)) goto err;
if (!BN_add_word(p,1)) goto err;
loop: for (i=1; i<NUMPRIMES; i++)
{
/* check that p and q are prime */
/* check that for p and q
* gcd(p-1,primes) == 1 (except for 2) */
if ( (BN_mod_word(p,(BN_ULONG)primes[i]) == 0) ||
(BN_mod_word(q,(BN_ULONG)primes[i]) == 0))
{
if (!BN_add(p,p,padd)) goto err;
if (!BN_add(q,q,qadd)) goto err;
goto loop;
}
}
ret=1;
err:
BN_CTX_end(ctx);
bn_check_top(p);
return(ret);
}

View file

@ -0,0 +1,327 @@
/* Auto generated by bn_prime.pl */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef EIGHT_BIT
#define NUMPRIMES 2048
typedef unsigned short prime_t;
#else
#define NUMPRIMES 54
typedef unsigned char prime_t;
#endif
static const prime_t primes[NUMPRIMES]=
{
2, 3, 5, 7, 11, 13, 17, 19,
23, 29, 31, 37, 41, 43, 47, 53,
59, 61, 67, 71, 73, 79, 83, 89,
97, 101, 103, 107, 109, 113, 127, 131,
137, 139, 149, 151, 157, 163, 167, 173,
179, 181, 191, 193, 197, 199, 211, 223,
227, 229, 233, 239, 241, 251,
#ifndef EIGHT_BIT
257, 263,
269, 271, 277, 281, 283, 293, 307, 311,
313, 317, 331, 337, 347, 349, 353, 359,
367, 373, 379, 383, 389, 397, 401, 409,
419, 421, 431, 433, 439, 443, 449, 457,
461, 463, 467, 479, 487, 491, 499, 503,
509, 521, 523, 541, 547, 557, 563, 569,
571, 577, 587, 593, 599, 601, 607, 613,
617, 619, 631, 641, 643, 647, 653, 659,
661, 673, 677, 683, 691, 701, 709, 719,
727, 733, 739, 743, 751, 757, 761, 769,
773, 787, 797, 809, 811, 821, 823, 827,
829, 839, 853, 857, 859, 863, 877, 881,
883, 887, 907, 911, 919, 929, 937, 941,
947, 953, 967, 971, 977, 983, 991, 997,
1009,1013,1019,1021,1031,1033,1039,1049,
1051,1061,1063,1069,1087,1091,1093,1097,
1103,1109,1117,1123,1129,1151,1153,1163,
1171,1181,1187,1193,1201,1213,1217,1223,
1229,1231,1237,1249,1259,1277,1279,1283,
1289,1291,1297,1301,1303,1307,1319,1321,
1327,1361,1367,1373,1381,1399,1409,1423,
1427,1429,1433,1439,1447,1451,1453,1459,
1471,1481,1483,1487,1489,1493,1499,1511,
1523,1531,1543,1549,1553,1559,1567,1571,
1579,1583,1597,1601,1607,1609,1613,1619,
1621,1627,1637,1657,1663,1667,1669,1693,
1697,1699,1709,1721,1723,1733,1741,1747,
1753,1759,1777,1783,1787,1789,1801,1811,
1823,1831,1847,1861,1867,1871,1873,1877,
1879,1889,1901,1907,1913,1931,1933,1949,
1951,1973,1979,1987,1993,1997,1999,2003,
2011,2017,2027,2029,2039,2053,2063,2069,
2081,2083,2087,2089,2099,2111,2113,2129,
2131,2137,2141,2143,2153,2161,2179,2203,
2207,2213,2221,2237,2239,2243,2251,2267,
2269,2273,2281,2287,2293,2297,2309,2311,
2333,2339,2341,2347,2351,2357,2371,2377,
2381,2383,2389,2393,2399,2411,2417,2423,
2437,2441,2447,2459,2467,2473,2477,2503,
2521,2531,2539,2543,2549,2551,2557,2579,
2591,2593,2609,2617,2621,2633,2647,2657,
2659,2663,2671,2677,2683,2687,2689,2693,
2699,2707,2711,2713,2719,2729,2731,2741,
2749,2753,2767,2777,2789,2791,2797,2801,
2803,2819,2833,2837,2843,2851,2857,2861,
2879,2887,2897,2903,2909,2917,2927,2939,
2953,2957,2963,2969,2971,2999,3001,3011,
3019,3023,3037,3041,3049,3061,3067,3079,
3083,3089,3109,3119,3121,3137,3163,3167,
3169,3181,3187,3191,3203,3209,3217,3221,
3229,3251,3253,3257,3259,3271,3299,3301,
3307,3313,3319,3323,3329,3331,3343,3347,
3359,3361,3371,3373,3389,3391,3407,3413,
3433,3449,3457,3461,3463,3467,3469,3491,
3499,3511,3517,3527,3529,3533,3539,3541,
3547,3557,3559,3571,3581,3583,3593,3607,
3613,3617,3623,3631,3637,3643,3659,3671,
3673,3677,3691,3697,3701,3709,3719,3727,
3733,3739,3761,3767,3769,3779,3793,3797,
3803,3821,3823,3833,3847,3851,3853,3863,
3877,3881,3889,3907,3911,3917,3919,3923,
3929,3931,3943,3947,3967,3989,4001,4003,
4007,4013,4019,4021,4027,4049,4051,4057,
4073,4079,4091,4093,4099,4111,4127,4129,
4133,4139,4153,4157,4159,4177,4201,4211,
4217,4219,4229,4231,4241,4243,4253,4259,
4261,4271,4273,4283,4289,4297,4327,4337,
4339,4349,4357,4363,4373,4391,4397,4409,
4421,4423,4441,4447,4451,4457,4463,4481,
4483,4493,4507,4513,4517,4519,4523,4547,
4549,4561,4567,4583,4591,4597,4603,4621,
4637,4639,4643,4649,4651,4657,4663,4673,
4679,4691,4703,4721,4723,4729,4733,4751,
4759,4783,4787,4789,4793,4799,4801,4813,
4817,4831,4861,4871,4877,4889,4903,4909,
4919,4931,4933,4937,4943,4951,4957,4967,
4969,4973,4987,4993,4999,5003,5009,5011,
5021,5023,5039,5051,5059,5077,5081,5087,
5099,5101,5107,5113,5119,5147,5153,5167,
5171,5179,5189,5197,5209,5227,5231,5233,
5237,5261,5273,5279,5281,5297,5303,5309,
5323,5333,5347,5351,5381,5387,5393,5399,
5407,5413,5417,5419,5431,5437,5441,5443,
5449,5471,5477,5479,5483,5501,5503,5507,
5519,5521,5527,5531,5557,5563,5569,5573,
5581,5591,5623,5639,5641,5647,5651,5653,
5657,5659,5669,5683,5689,5693,5701,5711,
5717,5737,5741,5743,5749,5779,5783,5791,
5801,5807,5813,5821,5827,5839,5843,5849,
5851,5857,5861,5867,5869,5879,5881,5897,
5903,5923,5927,5939,5953,5981,5987,6007,
6011,6029,6037,6043,6047,6053,6067,6073,
6079,6089,6091,6101,6113,6121,6131,6133,
6143,6151,6163,6173,6197,6199,6203,6211,
6217,6221,6229,6247,6257,6263,6269,6271,
6277,6287,6299,6301,6311,6317,6323,6329,
6337,6343,6353,6359,6361,6367,6373,6379,
6389,6397,6421,6427,6449,6451,6469,6473,
6481,6491,6521,6529,6547,6551,6553,6563,
6569,6571,6577,6581,6599,6607,6619,6637,
6653,6659,6661,6673,6679,6689,6691,6701,
6703,6709,6719,6733,6737,6761,6763,6779,
6781,6791,6793,6803,6823,6827,6829,6833,
6841,6857,6863,6869,6871,6883,6899,6907,
6911,6917,6947,6949,6959,6961,6967,6971,
6977,6983,6991,6997,7001,7013,7019,7027,
7039,7043,7057,7069,7079,7103,7109,7121,
7127,7129,7151,7159,7177,7187,7193,7207,
7211,7213,7219,7229,7237,7243,7247,7253,
7283,7297,7307,7309,7321,7331,7333,7349,
7351,7369,7393,7411,7417,7433,7451,7457,
7459,7477,7481,7487,7489,7499,7507,7517,
7523,7529,7537,7541,7547,7549,7559,7561,
7573,7577,7583,7589,7591,7603,7607,7621,
7639,7643,7649,7669,7673,7681,7687,7691,
7699,7703,7717,7723,7727,7741,7753,7757,
7759,7789,7793,7817,7823,7829,7841,7853,
7867,7873,7877,7879,7883,7901,7907,7919,
7927,7933,7937,7949,7951,7963,7993,8009,
8011,8017,8039,8053,8059,8069,8081,8087,
8089,8093,8101,8111,8117,8123,8147,8161,
8167,8171,8179,8191,8209,8219,8221,8231,
8233,8237,8243,8263,8269,8273,8287,8291,
8293,8297,8311,8317,8329,8353,8363,8369,
8377,8387,8389,8419,8423,8429,8431,8443,
8447,8461,8467,8501,8513,8521,8527,8537,
8539,8543,8563,8573,8581,8597,8599,8609,
8623,8627,8629,8641,8647,8663,8669,8677,
8681,8689,8693,8699,8707,8713,8719,8731,
8737,8741,8747,8753,8761,8779,8783,8803,
8807,8819,8821,8831,8837,8839,8849,8861,
8863,8867,8887,8893,8923,8929,8933,8941,
8951,8963,8969,8971,8999,9001,9007,9011,
9013,9029,9041,9043,9049,9059,9067,9091,
9103,9109,9127,9133,9137,9151,9157,9161,
9173,9181,9187,9199,9203,9209,9221,9227,
9239,9241,9257,9277,9281,9283,9293,9311,
9319,9323,9337,9341,9343,9349,9371,9377,
9391,9397,9403,9413,9419,9421,9431,9433,
9437,9439,9461,9463,9467,9473,9479,9491,
9497,9511,9521,9533,9539,9547,9551,9587,
9601,9613,9619,9623,9629,9631,9643,9649,
9661,9677,9679,9689,9697,9719,9721,9733,
9739,9743,9749,9767,9769,9781,9787,9791,
9803,9811,9817,9829,9833,9839,9851,9857,
9859,9871,9883,9887,9901,9907,9923,9929,
9931,9941,9949,9967,9973,10007,10009,10037,
10039,10061,10067,10069,10079,10091,10093,10099,
10103,10111,10133,10139,10141,10151,10159,10163,
10169,10177,10181,10193,10211,10223,10243,10247,
10253,10259,10267,10271,10273,10289,10301,10303,
10313,10321,10331,10333,10337,10343,10357,10369,
10391,10399,10427,10429,10433,10453,10457,10459,
10463,10477,10487,10499,10501,10513,10529,10531,
10559,10567,10589,10597,10601,10607,10613,10627,
10631,10639,10651,10657,10663,10667,10687,10691,
10709,10711,10723,10729,10733,10739,10753,10771,
10781,10789,10799,10831,10837,10847,10853,10859,
10861,10867,10883,10889,10891,10903,10909,10937,
10939,10949,10957,10973,10979,10987,10993,11003,
11027,11047,11057,11059,11069,11071,11083,11087,
11093,11113,11117,11119,11131,11149,11159,11161,
11171,11173,11177,11197,11213,11239,11243,11251,
11257,11261,11273,11279,11287,11299,11311,11317,
11321,11329,11351,11353,11369,11383,11393,11399,
11411,11423,11437,11443,11447,11467,11471,11483,
11489,11491,11497,11503,11519,11527,11549,11551,
11579,11587,11593,11597,11617,11621,11633,11657,
11677,11681,11689,11699,11701,11717,11719,11731,
11743,11777,11779,11783,11789,11801,11807,11813,
11821,11827,11831,11833,11839,11863,11867,11887,
11897,11903,11909,11923,11927,11933,11939,11941,
11953,11959,11969,11971,11981,11987,12007,12011,
12037,12041,12043,12049,12071,12073,12097,12101,
12107,12109,12113,12119,12143,12149,12157,12161,
12163,12197,12203,12211,12227,12239,12241,12251,
12253,12263,12269,12277,12281,12289,12301,12323,
12329,12343,12347,12373,12377,12379,12391,12401,
12409,12413,12421,12433,12437,12451,12457,12473,
12479,12487,12491,12497,12503,12511,12517,12527,
12539,12541,12547,12553,12569,12577,12583,12589,
12601,12611,12613,12619,12637,12641,12647,12653,
12659,12671,12689,12697,12703,12713,12721,12739,
12743,12757,12763,12781,12791,12799,12809,12821,
12823,12829,12841,12853,12889,12893,12899,12907,
12911,12917,12919,12923,12941,12953,12959,12967,
12973,12979,12983,13001,13003,13007,13009,13033,
13037,13043,13049,13063,13093,13099,13103,13109,
13121,13127,13147,13151,13159,13163,13171,13177,
13183,13187,13217,13219,13229,13241,13249,13259,
13267,13291,13297,13309,13313,13327,13331,13337,
13339,13367,13381,13397,13399,13411,13417,13421,
13441,13451,13457,13463,13469,13477,13487,13499,
13513,13523,13537,13553,13567,13577,13591,13597,
13613,13619,13627,13633,13649,13669,13679,13681,
13687,13691,13693,13697,13709,13711,13721,13723,
13729,13751,13757,13759,13763,13781,13789,13799,
13807,13829,13831,13841,13859,13873,13877,13879,
13883,13901,13903,13907,13913,13921,13931,13933,
13963,13967,13997,13999,14009,14011,14029,14033,
14051,14057,14071,14081,14083,14087,14107,14143,
14149,14153,14159,14173,14177,14197,14207,14221,
14243,14249,14251,14281,14293,14303,14321,14323,
14327,14341,14347,14369,14387,14389,14401,14407,
14411,14419,14423,14431,14437,14447,14449,14461,
14479,14489,14503,14519,14533,14537,14543,14549,
14551,14557,14561,14563,14591,14593,14621,14627,
14629,14633,14639,14653,14657,14669,14683,14699,
14713,14717,14723,14731,14737,14741,14747,14753,
14759,14767,14771,14779,14783,14797,14813,14821,
14827,14831,14843,14851,14867,14869,14879,14887,
14891,14897,14923,14929,14939,14947,14951,14957,
14969,14983,15013,15017,15031,15053,15061,15073,
15077,15083,15091,15101,15107,15121,15131,15137,
15139,15149,15161,15173,15187,15193,15199,15217,
15227,15233,15241,15259,15263,15269,15271,15277,
15287,15289,15299,15307,15313,15319,15329,15331,
15349,15359,15361,15373,15377,15383,15391,15401,
15413,15427,15439,15443,15451,15461,15467,15473,
15493,15497,15511,15527,15541,15551,15559,15569,
15581,15583,15601,15607,15619,15629,15641,15643,
15647,15649,15661,15667,15671,15679,15683,15727,
15731,15733,15737,15739,15749,15761,15767,15773,
15787,15791,15797,15803,15809,15817,15823,15859,
15877,15881,15887,15889,15901,15907,15913,15919,
15923,15937,15959,15971,15973,15991,16001,16007,
16033,16057,16061,16063,16067,16069,16073,16087,
16091,16097,16103,16111,16127,16139,16141,16183,
16187,16189,16193,16217,16223,16229,16231,16249,
16253,16267,16273,16301,16319,16333,16339,16349,
16361,16363,16369,16381,16411,16417,16421,16427,
16433,16447,16451,16453,16477,16481,16487,16493,
16519,16529,16547,16553,16561,16567,16573,16603,
16607,16619,16631,16633,16649,16651,16657,16661,
16673,16691,16693,16699,16703,16729,16741,16747,
16759,16763,16787,16811,16823,16829,16831,16843,
16871,16879,16883,16889,16901,16903,16921,16927,
16931,16937,16943,16963,16979,16981,16987,16993,
17011,17021,17027,17029,17033,17041,17047,17053,
17077,17093,17099,17107,17117,17123,17137,17159,
17167,17183,17189,17191,17203,17207,17209,17231,
17239,17257,17291,17293,17299,17317,17321,17327,
17333,17341,17351,17359,17377,17383,17387,17389,
17393,17401,17417,17419,17431,17443,17449,17467,
17471,17477,17483,17489,17491,17497,17509,17519,
17539,17551,17569,17573,17579,17581,17597,17599,
17609,17623,17627,17657,17659,17669,17681,17683,
17707,17713,17729,17737,17747,17749,17761,17783,
17789,17791,17807,17827,17837,17839,17851,17863,
#endif
};

View file

@ -0,0 +1,119 @@
#!/usr/local/bin/perl
# bn_prime.pl
$num=2048;
$num=$ARGV[0] if ($#ARGV >= 0);
push(@primes,2);
$p=1;
loop: while ($#primes < $num-1)
{
$p+=2;
$s=int(sqrt($p));
for ($i=0; defined($primes[$i]) && $primes[$i]<=$s; $i++)
{
next loop if (($p%$primes[$i]) == 0);
}
push(@primes,$p);
}
# print <<"EOF";
# /* Auto generated by bn_prime.pl */
# /* Copyright (C) 1995-1997 Eric Young (eay\@mincom.oz.au).
# * All rights reserved.
# * Copyright remains Eric Young's, and as such any Copyright notices in
# * the code are not to be removed.
# * See the COPYRIGHT file in the SSLeay distribution for more details.
# */
#
# EOF
print <<\EOF;
/* Auto generated by bn_prime.pl */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
EOF
for ($i=0; $i <= $#primes; $i++)
{
if ($primes[$i] > 256)
{
$eight=$i;
last;
}
}
printf "#ifndef EIGHT_BIT\n";
printf "#define NUMPRIMES %d\n",$num;
printf "typedef unsigned short prime_t;\n";
printf "#else\n";
printf "#define NUMPRIMES %d\n",$eight;
printf "typedef unsigned char prime_t;\n";
printf "#endif\n";
print "static const prime_t primes[NUMPRIMES]=\n\t{\n\t";
$init=0;
for ($i=0; $i <= $#primes; $i++)
{
printf "\n#ifndef EIGHT_BIT\n\t" if ($primes[$i] > 256) && !($init++);
printf("\n\t") if (($i%8) == 0) && ($i != 0);
printf("%4d,",$primes[$i]);
}
print "\n#endif\n\t};\n";

View file

@ -0,0 +1,359 @@
/* crypto/bn/bn_print.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <ctype.h>
#include "cryptlib.h"
#include <openssl/buffer.h>
#include "bn_lcl.h"
static const char Hex[]="0123456789ABCDEF";
/* Must 'OPENSSL_free' the returned data */
char *BN_bn2hex(const BIGNUM *a)
{
int i,j,v,z=0;
char *buf;
char *p;
buf=(char *)OPENSSL_malloc(a->top*BN_BYTES*2+2);
if (buf == NULL)
{
BNerr(BN_F_BN_BN2HEX,ERR_R_MALLOC_FAILURE);
goto err;
}
p=buf;
if (a->neg) *(p++)='-';
if (BN_is_zero(a)) *(p++)='0';
for (i=a->top-1; i >=0; i--)
{
for (j=BN_BITS2-8; j >= 0; j-=8)
{
/* strip leading zeros */
v=((int)(a->d[i]>>(long)j))&0xff;
if (z || (v != 0))
{
*(p++)=Hex[v>>4];
*(p++)=Hex[v&0x0f];
z=1;
}
}
}
*p='\0';
err:
return(buf);
}
/* Must 'OPENSSL_free' the returned data */
char *BN_bn2dec(const BIGNUM *a)
{
int i=0,num, ok = 0;
char *buf=NULL;
char *p;
BIGNUM *t=NULL;
BN_ULONG *bn_data=NULL,*lp;
/* get an upper bound for the length of the decimal integer
* num <= (BN_num_bits(a) + 1) * log(2)
* <= 3 * BN_num_bits(a) * 0.1001 + log(2) + 1 (rounding error)
* <= BN_num_bits(a)/10 + BN_num_bits/1000 + 1 + 1
*/
i=BN_num_bits(a)*3;
num=(i/10+i/1000+1)+1;
bn_data=(BN_ULONG *)OPENSSL_malloc((num/BN_DEC_NUM+1)*sizeof(BN_ULONG));
buf=(char *)OPENSSL_malloc(num+3);
if ((buf == NULL) || (bn_data == NULL))
{
BNerr(BN_F_BN_BN2DEC,ERR_R_MALLOC_FAILURE);
goto err;
}
if ((t=BN_dup(a)) == NULL) goto err;
#define BUF_REMAIN (num+3 - (size_t)(p - buf))
p=buf;
lp=bn_data;
if (BN_is_zero(t))
{
*(p++)='0';
*(p++)='\0';
}
else
{
if (BN_is_negative(t))
*p++ = '-';
i=0;
while (!BN_is_zero(t))
{
*lp=BN_div_word(t,BN_DEC_CONV);
lp++;
}
lp--;
/* We now have a series of blocks, BN_DEC_NUM chars
* in length, where the last one needs truncation.
* The blocks need to be reversed in order. */
BIO_snprintf(p,BUF_REMAIN,BN_DEC_FMT1,*lp);
while (*p) p++;
while (lp != bn_data)
{
lp--;
BIO_snprintf(p,BUF_REMAIN,BN_DEC_FMT2,*lp);
while (*p) p++;
}
}
ok = 1;
err:
if (bn_data != NULL) OPENSSL_free(bn_data);
if (t != NULL) BN_free(t);
if (!ok && buf)
{
OPENSSL_free(buf);
buf = NULL;
}
return(buf);
}
int BN_hex2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret=NULL;
BN_ULONG l=0;
int neg=0,h,m,i,j,k,c;
int num;
if ((a == NULL) || (*a == '\0')) return(0);
if (*a == '-') { neg=1; a++; }
for (i=0; isxdigit((unsigned char) a[i]); i++)
;
num=i+neg;
if (bn == NULL) return(num);
/* a is the start of the hex digits, and it is 'i' long */
if (*bn == NULL)
{
if ((ret=BN_new()) == NULL) return(0);
}
else
{
ret= *bn;
BN_zero(ret);
}
/* i is the number of hex digests; */
if (bn_expand(ret,i*4) == NULL) goto err;
j=i; /* least significant 'hex' */
m=0;
h=0;
while (j > 0)
{
m=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;
l=0;
for (;;)
{
c=a[j-m];
if ((c >= '0') && (c <= '9')) k=c-'0';
else if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;
else if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;
else k=0; /* paranoia */
l=(l<<4)|k;
if (--m <= 0)
{
ret->d[h++]=l;
break;
}
}
j-=(BN_BYTES*2);
}
ret->top=h;
bn_correct_top(ret);
ret->neg=neg;
*bn=ret;
bn_check_top(ret);
return(num);
err:
if (*bn == NULL) BN_free(ret);
return(0);
}
int BN_dec2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret=NULL;
BN_ULONG l=0;
int neg=0,i,j;
int num;
if ((a == NULL) || (*a == '\0')) return(0);
if (*a == '-') { neg=1; a++; }
for (i=0; isdigit((unsigned char) a[i]); i++)
;
num=i+neg;
if (bn == NULL) return(num);
/* a is the start of the digits, and it is 'i' long.
* We chop it into BN_DEC_NUM digits at a time */
if (*bn == NULL)
{
if ((ret=BN_new()) == NULL) return(0);
}
else
{
ret= *bn;
BN_zero(ret);
}
/* i is the number of digests, a bit of an over expand; */
if (bn_expand(ret,i*4) == NULL) goto err;
j=BN_DEC_NUM-(i%BN_DEC_NUM);
if (j == BN_DEC_NUM) j=0;
l=0;
while (*a)
{
l*=10;
l+= *a-'0';
a++;
if (++j == BN_DEC_NUM)
{
BN_mul_word(ret,BN_DEC_CONV);
BN_add_word(ret,l);
l=0;
j=0;
}
}
ret->neg=neg;
bn_correct_top(ret);
*bn=ret;
bn_check_top(ret);
return(num);
err:
if (*bn == NULL) BN_free(ret);
return(0);
}
int BN_asc2bn(BIGNUM **bn, const char *a)
{
const char *p = a;
if (*p == '-')
p++;
if (p[0] == '0' && (p[1] == 'X' || p[1] == 'x'))
{
if (!BN_hex2bn(bn, p + 2))
return 0;
}
else
{
if (!BN_dec2bn(bn, p))
return 0;
}
if (*a == '-')
(*bn)->neg = 1;
return 1;
}
#ifndef OPENSSL_NO_BIO
#ifndef OPENSSL_NO_FP_API
int BN_print_fp(FILE *fp, const BIGNUM *a)
{
BIO *b;
int ret;
if ((b=BIO_new(BIO_s_file())) == NULL)
return(0);
BIO_set_fp(b,fp,BIO_NOCLOSE);
ret=BN_print(b,a);
BIO_free(b);
return(ret);
}
#endif
int BN_print(BIO *bp, const BIGNUM *a)
{
int i,j,v,z=0;
int ret=0;
if ((a->neg) && (BIO_write(bp,"-",1) != 1)) goto end;
if (BN_is_zero(a) && (BIO_write(bp,"0",1) != 1)) goto end;
for (i=a->top-1; i >=0; i--)
{
for (j=BN_BITS2-4; j >= 0; j-=4)
{
/* strip leading zeros */
v=((int)(a->d[i]>>(long)j))&0x0f;
if (z || (v != 0))
{
if (BIO_write(bp,&(Hex[v]),1) != 1)
goto end;
z=1;
}
}
}
ret=1;
end:
return(ret);
}
#endif

View file

@ -0,0 +1,305 @@
/* crypto/bn/bn_rand.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include "bn_lcl.h"
#include <openssl/rand.h>
static int bnrand(int pseudorand, BIGNUM *rnd, int bits, int top, int bottom)
{
unsigned char *buf=NULL;
int ret=0,bit,bytes,mask;
time_t tim;
if (bits == 0)
{
BN_zero(rnd);
return 1;
}
bytes=(bits+7)/8;
bit=(bits-1)%8;
mask=0xff<<(bit+1);
buf=(unsigned char *)OPENSSL_malloc(bytes);
if (buf == NULL)
{
BNerr(BN_F_BNRAND,ERR_R_MALLOC_FAILURE);
goto err;
}
/* make a random number and set the top and bottom bits */
time(&tim);
RAND_add(&tim,sizeof(tim),0.0);
if (pseudorand)
{
if (RAND_pseudo_bytes(buf, bytes) == -1)
goto err;
}
else
{
if (RAND_bytes(buf, bytes) <= 0)
goto err;
}
#if 1
if (pseudorand == 2)
{
/* generate patterns that are more likely to trigger BN
library bugs */
int i;
unsigned char c;
for (i = 0; i < bytes; i++)
{
RAND_pseudo_bytes(&c, 1);
if (c >= 128 && i > 0)
buf[i] = buf[i-1];
else if (c < 42)
buf[i] = 0;
else if (c < 84)
buf[i] = 255;
}
}
#endif
if (top != -1)
{
if (top)
{
if (bit == 0)
{
buf[0]=1;
buf[1]|=0x80;
}
else
{
buf[0]|=(3<<(bit-1));
}
}
else
{
buf[0]|=(1<<bit);
}
}
buf[0] &= ~mask;
if (bottom) /* set bottom bit if requested */
buf[bytes-1]|=1;
if (!BN_bin2bn(buf,bytes,rnd)) goto err;
ret=1;
err:
if (buf != NULL)
{
OPENSSL_cleanse(buf,bytes);
OPENSSL_free(buf);
}
bn_check_top(rnd);
return(ret);
}
int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
{
return bnrand(0, rnd, bits, top, bottom);
}
int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom)
{
return bnrand(1, rnd, bits, top, bottom);
}
#if 1
int BN_bntest_rand(BIGNUM *rnd, int bits, int top, int bottom)
{
return bnrand(2, rnd, bits, top, bottom);
}
#endif
/* random number r: 0 <= r < range */
static int bn_rand_range(int pseudo, BIGNUM *r, const BIGNUM *range)
{
int (*bn_rand)(BIGNUM *, int, int, int) = pseudo ? BN_pseudo_rand : BN_rand;
int n;
int count = 100;
if (range->neg || BN_is_zero(range))
{
BNerr(BN_F_BN_RAND_RANGE, BN_R_INVALID_RANGE);
return 0;
}
n = BN_num_bits(range); /* n > 0 */
/* BN_is_bit_set(range, n - 1) always holds */
if (n == 1)
BN_zero(r);
else if (!BN_is_bit_set(range, n - 2) && !BN_is_bit_set(range, n - 3))
{
/* range = 100..._2,
* so 3*range (= 11..._2) is exactly one bit longer than range */
do
{
if (!bn_rand(r, n + 1, -1, 0)) return 0;
/* If r < 3*range, use r := r MOD range
* (which is either r, r - range, or r - 2*range).
* Otherwise, iterate once more.
* Since 3*range = 11..._2, each iteration succeeds with
* probability >= .75. */
if (BN_cmp(r ,range) >= 0)
{
if (!BN_sub(r, r, range)) return 0;
if (BN_cmp(r, range) >= 0)
if (!BN_sub(r, r, range)) return 0;
}
if (!--count)
{
BNerr(BN_F_BN_RAND_RANGE, BN_R_TOO_MANY_ITERATIONS);
return 0;
}
}
while (BN_cmp(r, range) >= 0);
}
else
{
do
{
/* range = 11..._2 or range = 101..._2 */
if (!bn_rand(r, n, -1, 0)) return 0;
if (!--count)
{
BNerr(BN_F_BN_RAND_RANGE, BN_R_TOO_MANY_ITERATIONS);
return 0;
}
}
while (BN_cmp(r, range) >= 0);
}
bn_check_top(r);
return 1;
}
int BN_rand_range(BIGNUM *r, const BIGNUM *range)
{
return bn_rand_range(0, r, range);
}
int BN_pseudo_rand_range(BIGNUM *r, const BIGNUM *range)
{
return bn_rand_range(1, r, range);
}

View file

@ -0,0 +1,234 @@
/* crypto/bn/bn_recp.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
void BN_RECP_CTX_init(BN_RECP_CTX *recp)
{
BN_init(&(recp->N));
BN_init(&(recp->Nr));
recp->num_bits=0;
recp->flags=0;
}
BN_RECP_CTX *BN_RECP_CTX_new(void)
{
BN_RECP_CTX *ret;
if ((ret=(BN_RECP_CTX *)OPENSSL_malloc(sizeof(BN_RECP_CTX))) == NULL)
return(NULL);
BN_RECP_CTX_init(ret);
ret->flags=BN_FLG_MALLOCED;
return(ret);
}
void BN_RECP_CTX_free(BN_RECP_CTX *recp)
{
if(recp == NULL)
return;
BN_free(&(recp->N));
BN_free(&(recp->Nr));
if (recp->flags & BN_FLG_MALLOCED)
OPENSSL_free(recp);
}
int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)
{
if (!BN_copy(&(recp->N),d)) return 0;
BN_zero(&(recp->Nr));
recp->num_bits=BN_num_bits(d);
recp->shift=0;
return(1);
}
int BN_mod_mul_reciprocal(BIGNUM *r, const BIGNUM *x, const BIGNUM *y,
BN_RECP_CTX *recp, BN_CTX *ctx)
{
int ret=0;
BIGNUM *a;
const BIGNUM *ca;
BN_CTX_start(ctx);
if ((a = BN_CTX_get(ctx)) == NULL) goto err;
if (y != NULL)
{
if (x == y)
{ if (!BN_sqr(a,x,ctx)) goto err; }
else
{ if (!BN_mul(a,x,y,ctx)) goto err; }
ca = a;
}
else
ca=x; /* Just do the mod */
ret = BN_div_recp(NULL,r,ca,recp,ctx);
err:
BN_CTX_end(ctx);
bn_check_top(r);
return(ret);
}
int BN_div_recp(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m,
BN_RECP_CTX *recp, BN_CTX *ctx)
{
int i,j,ret=0;
BIGNUM *a,*b,*d,*r;
BN_CTX_start(ctx);
a=BN_CTX_get(ctx);
b=BN_CTX_get(ctx);
if (dv != NULL)
d=dv;
else
d=BN_CTX_get(ctx);
if (rem != NULL)
r=rem;
else
r=BN_CTX_get(ctx);
if (a == NULL || b == NULL || d == NULL || r == NULL) goto err;
if (BN_ucmp(m,&(recp->N)) < 0)
{
BN_zero(d);
if (!BN_copy(r,m)) return 0;
BN_CTX_end(ctx);
return(1);
}
/* We want the remainder
* Given input of ABCDEF / ab
* we need multiply ABCDEF by 3 digests of the reciprocal of ab
*
*/
/* i := max(BN_num_bits(m), 2*BN_num_bits(N)) */
i=BN_num_bits(m);
j=recp->num_bits<<1;
if (j>i) i=j;
/* Nr := round(2^i / N) */
if (i != recp->shift)
recp->shift=BN_reciprocal(&(recp->Nr),&(recp->N),
i,ctx); /* BN_reciprocal returns i, or -1 for an error */
if (recp->shift == -1) goto err;
/* d := |round(round(m / 2^BN_num_bits(N)) * recp->Nr / 2^(i - BN_num_bits(N)))|
* = |round(round(m / 2^BN_num_bits(N)) * round(2^i / N) / 2^(i - BN_num_bits(N)))|
* <= |(m / 2^BN_num_bits(N)) * (2^i / N) * (2^BN_num_bits(N) / 2^i)|
* = |m/N|
*/
if (!BN_rshift(a,m,recp->num_bits)) goto err;
if (!BN_mul(b,a,&(recp->Nr),ctx)) goto err;
if (!BN_rshift(d,b,i-recp->num_bits)) goto err;
d->neg=0;
if (!BN_mul(b,&(recp->N),d,ctx)) goto err;
if (!BN_usub(r,m,b)) goto err;
r->neg=0;
#if 1
j=0;
while (BN_ucmp(r,&(recp->N)) >= 0)
{
if (j++ > 2)
{
BNerr(BN_F_BN_DIV_RECP,BN_R_BAD_RECIPROCAL);
goto err;
}
if (!BN_usub(r,r,&(recp->N))) goto err;
if (!BN_add_word(d,1)) goto err;
}
#endif
r->neg=BN_is_zero(r)?0:m->neg;
d->neg=m->neg^recp->N.neg;
ret=1;
err:
BN_CTX_end(ctx);
bn_check_top(dv);
bn_check_top(rem);
return(ret);
}
/* len is the expected size of the result
* We actually calculate with an extra word of precision, so
* we can do faster division if the remainder is not required.
*/
/* r := 2^len / m */
int BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx)
{
int ret= -1;
BIGNUM *t;
BN_CTX_start(ctx);
if((t = BN_CTX_get(ctx)) == NULL) goto err;
if (!BN_set_bit(t,len)) goto err;
if (!BN_div(r,NULL,t,m,ctx)) goto err;
ret=len;
err:
bn_check_top(r);
BN_CTX_end(ctx);
return(ret);
}

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@ -0,0 +1,220 @@
/* crypto/bn/bn_shift.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
int BN_lshift1(BIGNUM *r, const BIGNUM *a)
{
register BN_ULONG *ap,*rp,t,c;
int i;
bn_check_top(r);
bn_check_top(a);
if (r != a)
{
r->neg=a->neg;
if (bn_wexpand(r,a->top+1) == NULL) return(0);
r->top=a->top;
}
else
{
if (bn_wexpand(r,a->top+1) == NULL) return(0);
}
ap=a->d;
rp=r->d;
c=0;
for (i=0; i<a->top; i++)
{
t= *(ap++);
*(rp++)=((t<<1)|c)&BN_MASK2;
c=(t & BN_TBIT)?1:0;
}
if (c)
{
*rp=1;
r->top++;
}
bn_check_top(r);
return(1);
}
int BN_rshift1(BIGNUM *r, const BIGNUM *a)
{
BN_ULONG *ap,*rp,t,c;
int i;
bn_check_top(r);
bn_check_top(a);
if (BN_is_zero(a))
{
BN_zero(r);
return(1);
}
if (a != r)
{
if (bn_wexpand(r,a->top) == NULL) return(0);
r->top=a->top;
r->neg=a->neg;
}
ap=a->d;
rp=r->d;
c=0;
for (i=a->top-1; i>=0; i--)
{
t=ap[i];
rp[i]=((t>>1)&BN_MASK2)|c;
c=(t&1)?BN_TBIT:0;
}
bn_correct_top(r);
bn_check_top(r);
return(1);
}
int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i,nw,lb,rb;
BN_ULONG *t,*f;
BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
r->neg=a->neg;
nw=n/BN_BITS2;
if (bn_wexpand(r,a->top+nw+1) == NULL) return(0);
lb=n%BN_BITS2;
rb=BN_BITS2-lb;
f=a->d;
t=r->d;
t[a->top+nw]=0;
if (lb == 0)
for (i=a->top-1; i>=0; i--)
t[nw+i]=f[i];
else
for (i=a->top-1; i>=0; i--)
{
l=f[i];
t[nw+i+1]|=(l>>rb)&BN_MASK2;
t[nw+i]=(l<<lb)&BN_MASK2;
}
memset(t,0,nw*sizeof(t[0]));
/* for (i=0; i<nw; i++)
t[i]=0;*/
r->top=a->top+nw+1;
bn_correct_top(r);
bn_check_top(r);
return(1);
}
int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i,j,nw,lb,rb;
BN_ULONG *t,*f;
BN_ULONG l,tmp;
bn_check_top(r);
bn_check_top(a);
nw=n/BN_BITS2;
rb=n%BN_BITS2;
lb=BN_BITS2-rb;
if (nw >= a->top || a->top == 0)
{
BN_zero(r);
return(1);
}
if (r != a)
{
r->neg=a->neg;
if (bn_wexpand(r,a->top-nw+1) == NULL) return(0);
}
else
{
if (n == 0)
return 1; /* or the copying loop will go berserk */
}
f= &(a->d[nw]);
t=r->d;
j=a->top-nw;
r->top=j;
if (rb == 0)
{
for (i=j; i != 0; i--)
*(t++)= *(f++);
}
else
{
l= *(f++);
for (i=j-1; i != 0; i--)
{
tmp =(l>>rb)&BN_MASK2;
l= *(f++);
*(t++) =(tmp|(l<<lb))&BN_MASK2;
}
*(t++) =(l>>rb)&BN_MASK2;
}
bn_correct_top(r);
bn_check_top(r);
return(1);
}

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@ -0,0 +1,294 @@
/* crypto/bn/bn_sqr.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
/* r must not be a */
/* I've just gone over this and it is now %20 faster on x86 - eay - 27 Jun 96 */
int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)
{
int max,al;
int ret = 0;
BIGNUM *tmp,*rr;
#ifdef BN_COUNT
fprintf(stderr,"BN_sqr %d * %d\n",a->top,a->top);
#endif
bn_check_top(a);
al=a->top;
if (al <= 0)
{
r->top=0;
return 1;
}
BN_CTX_start(ctx);
rr=(a != r) ? r : BN_CTX_get(ctx);
tmp=BN_CTX_get(ctx);
if (!rr || !tmp) goto err;
max = 2 * al; /* Non-zero (from above) */
if (bn_wexpand(rr,max) == NULL) goto err;
if (al == 4)
{
#ifndef BN_SQR_COMBA
BN_ULONG t[8];
bn_sqr_normal(rr->d,a->d,4,t);
#else
bn_sqr_comba4(rr->d,a->d);
#endif
}
else if (al == 8)
{
#ifndef BN_SQR_COMBA
BN_ULONG t[16];
bn_sqr_normal(rr->d,a->d,8,t);
#else
bn_sqr_comba8(rr->d,a->d);
#endif
}
else
{
#if defined(BN_RECURSION)
if (al < BN_SQR_RECURSIVE_SIZE_NORMAL)
{
BN_ULONG t[BN_SQR_RECURSIVE_SIZE_NORMAL*2];
bn_sqr_normal(rr->d,a->d,al,t);
}
else
{
int j,k;
j=BN_num_bits_word((BN_ULONG)al);
j=1<<(j-1);
k=j+j;
if (al == j)
{
if (bn_wexpand(tmp,k*2) == NULL) goto err;
bn_sqr_recursive(rr->d,a->d,al,tmp->d);
}
else
{
if (bn_wexpand(tmp,max) == NULL) goto err;
bn_sqr_normal(rr->d,a->d,al,tmp->d);
}
}
#else
if (bn_wexpand(tmp,max) == NULL) goto err;
bn_sqr_normal(rr->d,a->d,al,tmp->d);
#endif
}
rr->neg=0;
/* If the most-significant half of the top word of 'a' is zero, then
* the square of 'a' will max-1 words. */
if(a->d[al - 1] == (a->d[al - 1] & BN_MASK2l))
rr->top = max - 1;
else
rr->top = max;
if (rr != r) BN_copy(r,rr);
ret = 1;
err:
bn_check_top(rr);
bn_check_top(tmp);
BN_CTX_end(ctx);
return(ret);
}
/* tmp must have 2*n words */
void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)
{
int i,j,max;
const BN_ULONG *ap;
BN_ULONG *rp;
max=n*2;
ap=a;
rp=r;
rp[0]=rp[max-1]=0;
rp++;
j=n;
if (--j > 0)
{
ap++;
rp[j]=bn_mul_words(rp,ap,j,ap[-1]);
rp+=2;
}
for (i=n-2; i>0; i--)
{
j--;
ap++;
rp[j]=bn_mul_add_words(rp,ap,j,ap[-1]);
rp+=2;
}
bn_add_words(r,r,r,max);
/* There will not be a carry */
bn_sqr_words(tmp,a,n);
bn_add_words(r,r,tmp,max);
}
#ifdef BN_RECURSION
/* r is 2*n words in size,
* a and b are both n words in size. (There's not actually a 'b' here ...)
* n must be a power of 2.
* We multiply and return the result.
* t must be 2*n words in size
* We calculate
* a[0]*b[0]
* a[0]*b[0]+a[1]*b[1]+(a[0]-a[1])*(b[1]-b[0])
* a[1]*b[1]
*/
void bn_sqr_recursive(BN_ULONG *r, const BN_ULONG *a, int n2, BN_ULONG *t)
{
int n=n2/2;
int zero,c1;
BN_ULONG ln,lo,*p;
#ifdef BN_COUNT
fprintf(stderr," bn_sqr_recursive %d * %d\n",n2,n2);
#endif
if (n2 == 4)
{
#ifndef BN_SQR_COMBA
bn_sqr_normal(r,a,4,t);
#else
bn_sqr_comba4(r,a);
#endif
return;
}
else if (n2 == 8)
{
#ifndef BN_SQR_COMBA
bn_sqr_normal(r,a,8,t);
#else
bn_sqr_comba8(r,a);
#endif
return;
}
if (n2 < BN_SQR_RECURSIVE_SIZE_NORMAL)
{
bn_sqr_normal(r,a,n2,t);
return;
}
/* r=(a[0]-a[1])*(a[1]-a[0]) */
c1=bn_cmp_words(a,&(a[n]),n);
zero=0;
if (c1 > 0)
bn_sub_words(t,a,&(a[n]),n);
else if (c1 < 0)
bn_sub_words(t,&(a[n]),a,n);
else
zero=1;
/* The result will always be negative unless it is zero */
p= &(t[n2*2]);
if (!zero)
bn_sqr_recursive(&(t[n2]),t,n,p);
else
memset(&(t[n2]),0,n2*sizeof(BN_ULONG));
bn_sqr_recursive(r,a,n,p);
bn_sqr_recursive(&(r[n2]),&(a[n]),n,p);
/* t[32] holds (a[0]-a[1])*(a[1]-a[0]), it is negative or zero
* r[10] holds (a[0]*b[0])
* r[32] holds (b[1]*b[1])
*/
c1=(int)(bn_add_words(t,r,&(r[n2]),n2));
/* t[32] is negative */
c1-=(int)(bn_sub_words(&(t[n2]),t,&(t[n2]),n2));
/* t[32] holds (a[0]-a[1])*(a[1]-a[0])+(a[0]*a[0])+(a[1]*a[1])
* r[10] holds (a[0]*a[0])
* r[32] holds (a[1]*a[1])
* c1 holds the carry bits
*/
c1+=(int)(bn_add_words(&(r[n]),&(r[n]),&(t[n2]),n2));
if (c1)
{
p= &(r[n+n2]);
lo= *p;
ln=(lo+c1)&BN_MASK2;
*p=ln;
/* The overflow will stop before we over write
* words we should not overwrite */
if (ln < (BN_ULONG)c1)
{
do {
p++;
lo= *p;
ln=(lo+1)&BN_MASK2;
*p=ln;
} while (ln == 0);
}
}
}
#endif

View file

@ -0,0 +1,393 @@
/* crypto/bn/bn_sqrt.c */
/* Written by Lenka Fibikova <fibikova@exp-math.uni-essen.de>
* and Bodo Moeller for the OpenSSL project. */
/* ====================================================================
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include "cryptlib.h"
#include "bn_lcl.h"
BIGNUM *BN_mod_sqrt(BIGNUM *in, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
/* Returns 'ret' such that
* ret^2 == a (mod p),
* using the Tonelli/Shanks algorithm (cf. Henri Cohen, "A Course
* in Algebraic Computational Number Theory", algorithm 1.5.1).
* 'p' must be prime!
*/
{
BIGNUM *ret = in;
int err = 1;
int r;
BIGNUM *A, *b, *q, *t, *x, *y;
int e, i, j;
if (!BN_is_odd(p) || BN_abs_is_word(p, 1))
{
if (BN_abs_is_word(p, 2))
{
if (ret == NULL)
ret = BN_new();
if (ret == NULL)
goto end;
if (!BN_set_word(ret, BN_is_bit_set(a, 0)))
{
if (ret != in)
BN_free(ret);
return NULL;
}
bn_check_top(ret);
return ret;
}
BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);
return(NULL);
}
if (BN_is_zero(a) || BN_is_one(a))
{
if (ret == NULL)
ret = BN_new();
if (ret == NULL)
goto end;
if (!BN_set_word(ret, BN_is_one(a)))
{
if (ret != in)
BN_free(ret);
return NULL;
}
bn_check_top(ret);
return ret;
}
BN_CTX_start(ctx);
A = BN_CTX_get(ctx);
b = BN_CTX_get(ctx);
q = BN_CTX_get(ctx);
t = BN_CTX_get(ctx);
x = BN_CTX_get(ctx);
y = BN_CTX_get(ctx);
if (y == NULL) goto end;
if (ret == NULL)
ret = BN_new();
if (ret == NULL) goto end;
/* A = a mod p */
if (!BN_nnmod(A, a, p, ctx)) goto end;
/* now write |p| - 1 as 2^e*q where q is odd */
e = 1;
while (!BN_is_bit_set(p, e))
e++;
/* we'll set q later (if needed) */
if (e == 1)
{
/* The easy case: (|p|-1)/2 is odd, so 2 has an inverse
* modulo (|p|-1)/2, and square roots can be computed
* directly by modular exponentiation.
* We have
* 2 * (|p|+1)/4 == 1 (mod (|p|-1)/2),
* so we can use exponent (|p|+1)/4, i.e. (|p|-3)/4 + 1.
*/
if (!BN_rshift(q, p, 2)) goto end;
q->neg = 0;
if (!BN_add_word(q, 1)) goto end;
if (!BN_mod_exp(ret, A, q, p, ctx)) goto end;
err = 0;
goto vrfy;
}
if (e == 2)
{
/* |p| == 5 (mod 8)
*
* In this case 2 is always a non-square since
* Legendre(2,p) = (-1)^((p^2-1)/8) for any odd prime.
* So if a really is a square, then 2*a is a non-square.
* Thus for
* b := (2*a)^((|p|-5)/8),
* i := (2*a)*b^2
* we have
* i^2 = (2*a)^((1 + (|p|-5)/4)*2)
* = (2*a)^((p-1)/2)
* = -1;
* so if we set
* x := a*b*(i-1),
* then
* x^2 = a^2 * b^2 * (i^2 - 2*i + 1)
* = a^2 * b^2 * (-2*i)
* = a*(-i)*(2*a*b^2)
* = a*(-i)*i
* = a.
*
* (This is due to A.O.L. Atkin,
* <URL: http://listserv.nodak.edu/scripts/wa.exe?A2=ind9211&L=nmbrthry&O=T&P=562>,
* November 1992.)
*/
/* t := 2*a */
if (!BN_mod_lshift1_quick(t, A, p)) goto end;
/* b := (2*a)^((|p|-5)/8) */
if (!BN_rshift(q, p, 3)) goto end;
q->neg = 0;
if (!BN_mod_exp(b, t, q, p, ctx)) goto end;
/* y := b^2 */
if (!BN_mod_sqr(y, b, p, ctx)) goto end;
/* t := (2*a)*b^2 - 1*/
if (!BN_mod_mul(t, t, y, p, ctx)) goto end;
if (!BN_sub_word(t, 1)) goto end;
/* x = a*b*t */
if (!BN_mod_mul(x, A, b, p, ctx)) goto end;
if (!BN_mod_mul(x, x, t, p, ctx)) goto end;
if (!BN_copy(ret, x)) goto end;
err = 0;
goto vrfy;
}
/* e > 2, so we really have to use the Tonelli/Shanks algorithm.
* First, find some y that is not a square. */
if (!BN_copy(q, p)) goto end; /* use 'q' as temp */
q->neg = 0;
i = 2;
do
{
/* For efficiency, try small numbers first;
* if this fails, try random numbers.
*/
if (i < 22)
{
if (!BN_set_word(y, i)) goto end;
}
else
{
if (!BN_pseudo_rand(y, BN_num_bits(p), 0, 0)) goto end;
if (BN_ucmp(y, p) >= 0)
{
if (!(p->neg ? BN_add : BN_sub)(y, y, p)) goto end;
}
/* now 0 <= y < |p| */
if (BN_is_zero(y))
if (!BN_set_word(y, i)) goto end;
}
r = BN_kronecker(y, q, ctx); /* here 'q' is |p| */
if (r < -1) goto end;
if (r == 0)
{
/* m divides p */
BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);
goto end;
}
}
while (r == 1 && ++i < 82);
if (r != -1)
{
/* Many rounds and still no non-square -- this is more likely
* a bug than just bad luck.
* Even if p is not prime, we should have found some y
* such that r == -1.
*/
BNerr(BN_F_BN_MOD_SQRT, BN_R_TOO_MANY_ITERATIONS);
goto end;
}
/* Here's our actual 'q': */
if (!BN_rshift(q, q, e)) goto end;
/* Now that we have some non-square, we can find an element
* of order 2^e by computing its q'th power. */
if (!BN_mod_exp(y, y, q, p, ctx)) goto end;
if (BN_is_one(y))
{
BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);
goto end;
}
/* Now we know that (if p is indeed prime) there is an integer
* k, 0 <= k < 2^e, such that
*
* a^q * y^k == 1 (mod p).
*
* As a^q is a square and y is not, k must be even.
* q+1 is even, too, so there is an element
*
* X := a^((q+1)/2) * y^(k/2),
*
* and it satisfies
*
* X^2 = a^q * a * y^k
* = a,
*
* so it is the square root that we are looking for.
*/
/* t := (q-1)/2 (note that q is odd) */
if (!BN_rshift1(t, q)) goto end;
/* x := a^((q-1)/2) */
if (BN_is_zero(t)) /* special case: p = 2^e + 1 */
{
if (!BN_nnmod(t, A, p, ctx)) goto end;
if (BN_is_zero(t))
{
/* special case: a == 0 (mod p) */
BN_zero(ret);
err = 0;
goto end;
}
else
if (!BN_one(x)) goto end;
}
else
{
if (!BN_mod_exp(x, A, t, p, ctx)) goto end;
if (BN_is_zero(x))
{
/* special case: a == 0 (mod p) */
BN_zero(ret);
err = 0;
goto end;
}
}
/* b := a*x^2 (= a^q) */
if (!BN_mod_sqr(b, x, p, ctx)) goto end;
if (!BN_mod_mul(b, b, A, p, ctx)) goto end;
/* x := a*x (= a^((q+1)/2)) */
if (!BN_mod_mul(x, x, A, p, ctx)) goto end;
while (1)
{
/* Now b is a^q * y^k for some even k (0 <= k < 2^E
* where E refers to the original value of e, which we
* don't keep in a variable), and x is a^((q+1)/2) * y^(k/2).
*
* We have a*b = x^2,
* y^2^(e-1) = -1,
* b^2^(e-1) = 1.
*/
if (BN_is_one(b))
{
if (!BN_copy(ret, x)) goto end;
err = 0;
goto vrfy;
}
/* find smallest i such that b^(2^i) = 1 */
i = 1;
if (!BN_mod_sqr(t, b, p, ctx)) goto end;
while (!BN_is_one(t))
{
i++;
if (i == e)
{
BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);
goto end;
}
if (!BN_mod_mul(t, t, t, p, ctx)) goto end;
}
/* t := y^2^(e - i - 1) */
if (!BN_copy(t, y)) goto end;
for (j = e - i - 1; j > 0; j--)
{
if (!BN_mod_sqr(t, t, p, ctx)) goto end;
}
if (!BN_mod_mul(y, t, t, p, ctx)) goto end;
if (!BN_mod_mul(x, x, t, p, ctx)) goto end;
if (!BN_mod_mul(b, b, y, p, ctx)) goto end;
e = i;
}
vrfy:
if (!err)
{
/* verify the result -- the input might have been not a square
* (test added in 0.9.8) */
if (!BN_mod_sqr(x, ret, p, ctx))
err = 1;
if (!err && 0 != BN_cmp(x, A))
{
BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);
err = 1;
}
}
end:
if (err)
{
if (ret != NULL && ret != in)
{
BN_clear_free(ret);
}
ret = NULL;
}
BN_CTX_end(ctx);
bn_check_top(ret);
return ret;
}

View file

@ -0,0 +1,247 @@
/* crypto/bn/bn_word.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
BN_ULONG BN_mod_word(const BIGNUM *a, BN_ULONG w)
{
#ifndef BN_LLONG
BN_ULONG ret=0;
#else
BN_ULLONG ret=0;
#endif
int i;
if (w == 0)
return (BN_ULONG)-1;
bn_check_top(a);
w&=BN_MASK2;
for (i=a->top-1; i>=0; i--)
{
#ifndef BN_LLONG
ret=((ret<<BN_BITS4)|((a->d[i]>>BN_BITS4)&BN_MASK2l))%w;
ret=((ret<<BN_BITS4)|(a->d[i]&BN_MASK2l))%w;
#else
ret=(BN_ULLONG)(((ret<<(BN_ULLONG)BN_BITS2)|a->d[i])%
(BN_ULLONG)w);
#endif
}
return((BN_ULONG)ret);
}
BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w)
{
BN_ULONG ret = 0;
int i, j;
bn_check_top(a);
w &= BN_MASK2;
if (!w)
/* actually this an error (division by zero) */
return (BN_ULONG)-1;
if (a->top == 0)
return 0;
/* normalize input (so bn_div_words doesn't complain) */
j = BN_BITS2 - BN_num_bits_word(w);
w <<= j;
if (!BN_lshift(a, a, j))
return (BN_ULONG)-1;
for (i=a->top-1; i>=0; i--)
{
BN_ULONG l,d;
l=a->d[i];
d=bn_div_words(ret,l,w);
ret=(l-((d*w)&BN_MASK2))&BN_MASK2;
a->d[i]=d;
}
if ((a->top > 0) && (a->d[a->top-1] == 0))
a->top--;
ret >>= j;
bn_check_top(a);
return(ret);
}
int BN_add_word(BIGNUM *a, BN_ULONG w)
{
BN_ULONG l;
int i;
bn_check_top(a);
w &= BN_MASK2;
/* degenerate case: w is zero */
if (!w) return 1;
/* degenerate case: a is zero */
if(BN_is_zero(a)) return BN_set_word(a, w);
/* handle 'a' when negative */
if (a->neg)
{
a->neg=0;
i=BN_sub_word(a,w);
if (!BN_is_zero(a))
a->neg=!(a->neg);
return(i);
}
/* Only expand (and risk failing) if it's possibly necessary */
if (((BN_ULONG)(a->d[a->top - 1] + 1) == 0) &&
(bn_wexpand(a,a->top+1) == NULL))
return(0);
i=0;
for (;;)
{
if (i >= a->top)
l=w;
else
l=(a->d[i]+w)&BN_MASK2;
a->d[i]=l;
if (w > l)
w=1;
else
break;
i++;
}
if (i >= a->top)
a->top++;
bn_check_top(a);
return(1);
}
int BN_sub_word(BIGNUM *a, BN_ULONG w)
{
int i;
bn_check_top(a);
w &= BN_MASK2;
/* degenerate case: w is zero */
if (!w) return 1;
/* degenerate case: a is zero */
if(BN_is_zero(a))
{
i = BN_set_word(a,w);
if (i != 0)
BN_set_negative(a, 1);
return i;
}
/* handle 'a' when negative */
if (a->neg)
{
a->neg=0;
i=BN_add_word(a,w);
a->neg=1;
return(i);
}
if ((a->top == 1) && (a->d[0] < w))
{
a->d[0]=w-a->d[0];
a->neg=1;
return(1);
}
i=0;
for (;;)
{
if (a->d[i] >= w)
{
a->d[i]-=w;
break;
}
else
{
a->d[i]=(a->d[i]-w)&BN_MASK2;
i++;
w=1;
}
}
if ((a->d[i] == 0) && (i == (a->top-1)))
a->top--;
bn_check_top(a);
return(1);
}
int BN_mul_word(BIGNUM *a, BN_ULONG w)
{
BN_ULONG ll;
bn_check_top(a);
w&=BN_MASK2;
if (a->top)
{
if (w == 0)
BN_zero(a);
else
{
ll=bn_mul_words(a->d,a->d,a->top,w);
if (ll)
{
if (bn_wexpand(a,a->top+1) == NULL) return(0);
a->d[a->top++]=ll;
}
}
}
bn_check_top(a);
return(1);
}

View file

@ -0,0 +1,233 @@
/* unused */
/* crypto/bn/bnspeed.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* most of this code has been pilfered from my libdes speed.c program */
#define BASENUM 1000000
#undef PROG
#define PROG bnspeed_main
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#if !defined(OPENSSL_SYS_MSDOS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX)
#define TIMES
#endif
#ifndef _IRIX
#include <time.h>
#endif
#ifdef TIMES
#include <sys/types.h>
#include <sys/times.h>
#endif
/* Depending on the VMS version, the tms structure is perhaps defined.
The __TMS macro will show if it was. If it wasn't defined, we should
undefine TIMES, since that tells the rest of the program how things
should be handled. -- Richard Levitte */
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
#undef TIMES
#endif
#ifndef TIMES
#include <sys/timeb.h>
#endif
#if defined(sun) || defined(__ultrix)
#define _POSIX_SOURCE
#include <limits.h>
#include <sys/param.h>
#endif
#include <openssl/bn.h>
#include <openssl/x509.h>
/* The following if from times(3) man page. It may need to be changed */
#ifndef HZ
# ifndef CLK_TCK
# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
# define HZ 100.0
# else /* _BSD_CLK_TCK_ */
# define HZ ((double)_BSD_CLK_TCK_)
# endif
# else /* CLK_TCK */
# define HZ ((double)CLK_TCK)
# endif
#endif
#undef BUFSIZE
#define BUFSIZE ((long)1024*8)
int run=0;
static double Time_F(int s);
#define START 0
#define STOP 1
static double Time_F(int s)
{
double ret;
#ifdef TIMES
static struct tms tstart,tend;
if (s == START)
{
times(&tstart);
return(0);
}
else
{
times(&tend);
ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
return((ret < 1e-3)?1e-3:ret);
}
#else /* !times() */
static struct timeb tstart,tend;
long i;
if (s == START)
{
ftime(&tstart);
return(0);
}
else
{
ftime(&tend);
i=(long)tend.millitm-(long)tstart.millitm;
ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
return((ret < 0.001)?0.001:ret);
}
#endif
}
#define NUM_SIZES 5
static int sizes[NUM_SIZES]={128,256,512,1024,2048};
/*static int sizes[NUM_SIZES]={59,179,299,419,539}; */
void do_mul(BIGNUM *r,BIGNUM *a,BIGNUM *b,BN_CTX *ctx);
int main(int argc, char **argv)
{
BN_CTX *ctx;
BIGNUM a,b,c;
ctx=BN_CTX_new();
BN_init(&a);
BN_init(&b);
BN_init(&c);
do_mul(&a,&b,&c,ctx);
}
void do_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
{
int i,j,k;
double tm;
long num;
for (i=0; i<NUM_SIZES; i++)
{
num=BASENUM;
if (i) num/=(i*3);
BN_rand(a,sizes[i],1,0);
for (j=i; j<NUM_SIZES; j++)
{
BN_rand(b,sizes[j],1,0);
Time_F(START);
for (k=0; k<num; k++)
BN_mul(r,b,a,ctx);
tm=Time_F(STOP);
printf("mul %4d x %4d -> %8.3fms\n",sizes[i],sizes[j],tm*1000.0/num);
}
}
for (i=0; i<NUM_SIZES; i++)
{
num=BASENUM;
if (i) num/=(i*3);
BN_rand(a,sizes[i],1,0);
Time_F(START);
for (k=0; k<num; k++)
BN_sqr(r,a,ctx);
tm=Time_F(STOP);
printf("sqr %4d x %4d -> %8.3fms\n",sizes[i],sizes[i],tm*1000.0/num);
}
for (i=0; i<NUM_SIZES; i++)
{
num=BASENUM/10;
if (i) num/=(i*3);
BN_rand(a,sizes[i]-1,1,0);
for (j=i; j<NUM_SIZES; j++)
{
BN_rand(b,sizes[j],1,0);
Time_F(START);
for (k=0; k<100000; k++)
BN_div(r, NULL, b, a,ctx);
tm=Time_F(STOP);
printf("div %4d / %4d -> %8.3fms\n",sizes[j],sizes[i]-1,tm*1000.0/num);
}
}
}

File diff suppressed because it is too large Load diff

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@ -0,0 +1,41 @@
#include <openssl/bn.h>
#include <openssl/rand.h>
static int Rand(n)
{
unsigned char x[2];
RAND_pseudo_bytes(x,2);
return (x[0] + 2*x[1]);
}
static void bug(char *m, BIGNUM *a, BIGNUM *b)
{
printf("%s!\na=",m);
BN_print_fp(stdout, a);
printf("\nb=");
BN_print_fp(stdout, b);
printf("\n");
fflush(stdout);
}
main()
{
BIGNUM *a=BN_new(), *b=BN_new(), *c=BN_new(), *d=BN_new(),
*C=BN_new(), *D=BN_new();
BN_RECP_CTX *recp=BN_RECP_CTX_new();
BN_CTX *ctx=BN_CTX_new();
for(;;) {
BN_pseudo_rand(a,Rand(),0,0);
BN_pseudo_rand(b,Rand(),0,0);
if (BN_is_zero(b)) continue;
BN_RECP_CTX_set(recp,b,ctx);
if (BN_div(C,D,a,b,ctx) != 1)
bug("BN_div failed",a,b);
if (BN_div_recp(c,d,a,recp,ctx) != 1)
bug("BN_div_recp failed",a,b);
else if (BN_cmp(c,C) != 0 || BN_cmp(c,C) != 0)
bug("mismatch",a,b);
}
}

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@ -0,0 +1,62 @@
/* unused */
#include <stdio.h>
#include <openssl/tmdiff.h>
#include "bn_lcl.h"
#define SIZE 256
#define NUM (8*8*8)
#define MOD (8*8*8*8*8)
main(argc,argv)
int argc;
char *argv[];
{
BN_CTX ctx;
BIGNUM a,b,c,r,rr,t,l;
int j,i,size=SIZE,num=NUM,mod=MOD;
char *start,*end;
BN_MONT_CTX mont;
double d,md;
BN_MONT_CTX_init(&mont);
BN_CTX_init(&ctx);
BN_init(&a);
BN_init(&b);
BN_init(&c);
BN_init(&r);
start=ms_time_new();
end=ms_time_new();
while (size <= 1024*8)
{
BN_rand(&a,size,0,0);
BN_rand(&b,size,1,0);
BN_rand(&c,size,0,1);
BN_mod(&a,&a,&c,&ctx);
ms_time_get(start);
for (i=0; i<10; i++)
BN_MONT_CTX_set(&mont,&c,&ctx);
ms_time_get(end);
md=ms_time_diff(start,end);
ms_time_get(start);
for (i=0; i<num; i++)
{
/* bn_mull(&r,&a,&b,&ctx); */
/* BN_sqr(&r,&a,&ctx); */
BN_mod_exp_mont(&r,&a,&b,&c,&ctx,&mont);
}
ms_time_get(end);
d=ms_time_diff(start,end)/* *50/33 */;
printf("%5d bit:%6.2f %6d %6.4f %4d m_set(%5.4f)\n",size,
d,num,d/num,(int)((d/num)*mod),md/10.0);
num/=8;
mod/=8;
if (num <= 0) num=1;
size*=2;
}
}

View file

@ -0,0 +1,353 @@
/* unused */
/* crypto/bn/expspeed.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* most of this code has been pilfered from my libdes speed.c program */
#define BASENUM 5000
#define NUM_START 0
/* determine timings for modexp, modmul, modsqr, gcd, Kronecker symbol,
* modular inverse, or modular square roots */
#define TEST_EXP
#undef TEST_MUL
#undef TEST_SQR
#undef TEST_GCD
#undef TEST_KRON
#undef TEST_INV
#undef TEST_SQRT
#define P_MOD_64 9 /* least significant 6 bits for prime to be used for BN_sqrt timings */
#if defined(TEST_EXP) + defined(TEST_MUL) + defined(TEST_SQR) + defined(TEST_GCD) + defined(TEST_KRON) + defined(TEST_INV) +defined(TEST_SQRT) != 1
# error "choose one test"
#endif
#if defined(TEST_INV) || defined(TEST_SQRT)
# define C_PRIME
static void genprime_cb(int p, int n, void *arg);
#endif
#undef PROG
#define PROG bnspeed_main
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#if !defined(OPENSSL_SYS_MSDOS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX)
#define TIMES
#endif
#ifndef _IRIX
#include <time.h>
#endif
#ifdef TIMES
#include <sys/types.h>
#include <sys/times.h>
#endif
/* Depending on the VMS version, the tms structure is perhaps defined.
The __TMS macro will show if it was. If it wasn't defined, we should
undefine TIMES, since that tells the rest of the program how things
should be handled. -- Richard Levitte */
#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
#undef TIMES
#endif
#ifndef TIMES
#include <sys/timeb.h>
#endif
#if defined(sun) || defined(__ultrix)
#define _POSIX_SOURCE
#include <limits.h>
#include <sys/param.h>
#endif
#include <openssl/bn.h>
#include <openssl/x509.h>
/* The following if from times(3) man page. It may need to be changed */
#ifndef HZ
# ifndef CLK_TCK
# ifndef _BSD_CLK_TCK_ /* FreeBSD hack */
# define HZ 100.0
# else /* _BSD_CLK_TCK_ */
# define HZ ((double)_BSD_CLK_TCK_)
# endif
# else /* CLK_TCK */
# define HZ ((double)CLK_TCK)
# endif
#endif
#undef BUFSIZE
#define BUFSIZE ((long)1024*8)
int run=0;
static double Time_F(int s);
#define START 0
#define STOP 1
static double Time_F(int s)
{
double ret;
#ifdef TIMES
static struct tms tstart,tend;
if (s == START)
{
times(&tstart);
return(0);
}
else
{
times(&tend);
ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
return((ret < 1e-3)?1e-3:ret);
}
#else /* !times() */
static struct timeb tstart,tend;
long i;
if (s == START)
{
ftime(&tstart);
return(0);
}
else
{
ftime(&tend);
i=(long)tend.millitm-(long)tstart.millitm;
ret=((double)(tend.time-tstart.time))+((double)i)/1000.0;
return((ret < 0.001)?0.001:ret);
}
#endif
}
#define NUM_SIZES 7
#if NUM_START > NUM_SIZES
# error "NUM_START > NUM_SIZES"
#endif
static int sizes[NUM_SIZES]={128,256,512,1024,2048,4096,8192};
static int mul_c[NUM_SIZES]={8*8*8*8*8*8,8*8*8*8*8,8*8*8*8,8*8*8,8*8,8,1};
/*static int sizes[NUM_SIZES]={59,179,299,419,539}; */
#define RAND_SEED(string) { const char str[] = string; RAND_seed(string, sizeof str); }
void do_mul_exp(BIGNUM *r,BIGNUM *a,BIGNUM *b,BIGNUM *c,BN_CTX *ctx);
int main(int argc, char **argv)
{
BN_CTX *ctx;
BIGNUM *a,*b,*c,*r;
#if 1
if (!CRYPTO_set_mem_debug_functions(0,0,0,0,0))
abort();
#endif
ctx=BN_CTX_new();
a=BN_new();
b=BN_new();
c=BN_new();
r=BN_new();
while (!RAND_status())
/* not enough bits */
RAND_SEED("I demand a manual recount!");
do_mul_exp(r,a,b,c,ctx);
return 0;
}
void do_mul_exp(BIGNUM *r, BIGNUM *a, BIGNUM *b, BIGNUM *c, BN_CTX *ctx)
{
int i,k;
double tm;
long num;
num=BASENUM;
for (i=NUM_START; i<NUM_SIZES; i++)
{
#ifdef C_PRIME
# ifdef TEST_SQRT
if (!BN_set_word(a, 64)) goto err;
if (!BN_set_word(b, P_MOD_64)) goto err;
# define ADD a
# define REM b
# else
# define ADD NULL
# define REM NULL
# endif
if (!BN_generate_prime(c,sizes[i],0,ADD,REM,genprime_cb,NULL)) goto err;
putc('\n', stderr);
fflush(stderr);
#endif
for (k=0; k<num; k++)
{
if (k%50 == 0) /* Average over num/50 different choices of random numbers. */
{
if (!BN_pseudo_rand(a,sizes[i],1,0)) goto err;
if (!BN_pseudo_rand(b,sizes[i],1,0)) goto err;
#ifndef C_PRIME
if (!BN_pseudo_rand(c,sizes[i],1,1)) goto err;
#endif
#ifdef TEST_SQRT
if (!BN_mod_sqr(a,a,c,ctx)) goto err;
if (!BN_mod_sqr(b,b,c,ctx)) goto err;
#else
if (!BN_nnmod(a,a,c,ctx)) goto err;
if (!BN_nnmod(b,b,c,ctx)) goto err;
#endif
if (k == 0)
Time_F(START);
}
#if defined(TEST_EXP)
if (!BN_mod_exp(r,a,b,c,ctx)) goto err;
#elif defined(TEST_MUL)
{
int i = 0;
for (i = 0; i < 50; i++)
if (!BN_mod_mul(r,a,b,c,ctx)) goto err;
}
#elif defined(TEST_SQR)
{
int i = 0;
for (i = 0; i < 50; i++)
{
if (!BN_mod_sqr(r,a,c,ctx)) goto err;
if (!BN_mod_sqr(r,b,c,ctx)) goto err;
}
}
#elif defined(TEST_GCD)
if (!BN_gcd(r,a,b,ctx)) goto err;
if (!BN_gcd(r,b,c,ctx)) goto err;
if (!BN_gcd(r,c,a,ctx)) goto err;
#elif defined(TEST_KRON)
if (-2 == BN_kronecker(a,b,ctx)) goto err;
if (-2 == BN_kronecker(b,c,ctx)) goto err;
if (-2 == BN_kronecker(c,a,ctx)) goto err;
#elif defined(TEST_INV)
if (!BN_mod_inverse(r,a,c,ctx)) goto err;
if (!BN_mod_inverse(r,b,c,ctx)) goto err;
#else /* TEST_SQRT */
if (!BN_mod_sqrt(r,a,c,ctx)) goto err;
if (!BN_mod_sqrt(r,b,c,ctx)) goto err;
#endif
}
tm=Time_F(STOP);
printf(
#if defined(TEST_EXP)
"modexp %4d ^ %4d %% %4d"
#elif defined(TEST_MUL)
"50*modmul %4d %4d %4d"
#elif defined(TEST_SQR)
"100*modsqr %4d %4d %4d"
#elif defined(TEST_GCD)
"3*gcd %4d %4d %4d"
#elif defined(TEST_KRON)
"3*kronecker %4d %4d %4d"
#elif defined(TEST_INV)
"2*inv %4d %4d mod %4d"
#else /* TEST_SQRT */
"2*sqrt [prime == %d (mod 64)] %4d %4d mod %4d"
#endif
" -> %8.6fms %5.1f (%ld)\n",
#ifdef TEST_SQRT
P_MOD_64,
#endif
sizes[i],sizes[i],sizes[i],tm*1000.0/num,tm*mul_c[i]/num, num);
num/=7;
if (num <= 0) num=1;
}
return;
err:
ERR_print_errors_fp(stderr);
}
#ifdef C_PRIME
static void genprime_cb(int p, int n, void *arg)
{
char c='*';
if (p == 0) c='.';
if (p == 1) c='+';
if (p == 2) c='*';
if (p == 3) c='\n';
putc(c, stderr);
fflush(stderr);
(void)n;
(void)arg;
}
#endif

View file

@ -0,0 +1,204 @@
/* crypto/bn/exptest.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../e_os.h"
#include <openssl/bio.h>
#include <openssl/bn.h>
#include <openssl/rand.h>
#include <openssl/err.h>
#define NUM_BITS (BN_BITS*2)
static const char rnd_seed[] = "string to make the random number generator think it has entropy";
int main(int argc, char *argv[])
{
BN_CTX *ctx;
BIO *out=NULL;
int i,ret;
unsigned char c;
BIGNUM *r_mont,*r_mont_const,*r_recp,*r_simple,*a,*b,*m;
RAND_seed(rnd_seed, sizeof rnd_seed); /* or BN_rand may fail, and we don't
* even check its return value
* (which we should) */
ERR_load_BN_strings();
ctx=BN_CTX_new();
if (ctx == NULL) EXIT(1);
r_mont=BN_new();
r_mont_const=BN_new();
r_recp=BN_new();
r_simple=BN_new();
a=BN_new();
b=BN_new();
m=BN_new();
if ( (r_mont == NULL) || (r_recp == NULL) ||
(a == NULL) || (b == NULL))
goto err;
out=BIO_new(BIO_s_file());
if (out == NULL) EXIT(1);
BIO_set_fp(out,stdout,BIO_NOCLOSE);
for (i=0; i<200; i++)
{
RAND_bytes(&c,1);
c=(c%BN_BITS)-BN_BITS2;
BN_rand(a,NUM_BITS+c,0,0);
RAND_bytes(&c,1);
c=(c%BN_BITS)-BN_BITS2;
BN_rand(b,NUM_BITS+c,0,0);
RAND_bytes(&c,1);
c=(c%BN_BITS)-BN_BITS2;
BN_rand(m,NUM_BITS+c,0,1);
BN_mod(a,a,m,ctx);
BN_mod(b,b,m,ctx);
ret=BN_mod_exp_mont(r_mont,a,b,m,ctx,NULL);
if (ret <= 0)
{
printf("BN_mod_exp_mont() problems\n");
ERR_print_errors(out);
EXIT(1);
}
ret=BN_mod_exp_recp(r_recp,a,b,m,ctx);
if (ret <= 0)
{
printf("BN_mod_exp_recp() problems\n");
ERR_print_errors(out);
EXIT(1);
}
ret=BN_mod_exp_simple(r_simple,a,b,m,ctx);
if (ret <= 0)
{
printf("BN_mod_exp_simple() problems\n");
ERR_print_errors(out);
EXIT(1);
}
ret=BN_mod_exp_mont_consttime(r_mont_const,a,b,m,ctx,NULL);
if (ret <= 0)
{
printf("BN_mod_exp_mont_consttime() problems\n");
ERR_print_errors(out);
EXIT(1);
}
if (BN_cmp(r_simple, r_mont) == 0
&& BN_cmp(r_simple,r_recp) == 0
&& BN_cmp(r_simple,r_mont_const) == 0)
{
printf(".");
fflush(stdout);
}
else
{
if (BN_cmp(r_simple,r_mont) != 0)
printf("\nsimple and mont results differ\n");
if (BN_cmp(r_simple,r_mont_const) != 0)
printf("\nsimple and mont const time results differ\n");
if (BN_cmp(r_simple,r_recp) != 0)
printf("\nsimple and recp results differ\n");
printf("a (%3d) = ",BN_num_bits(a)); BN_print(out,a);
printf("\nb (%3d) = ",BN_num_bits(b)); BN_print(out,b);
printf("\nm (%3d) = ",BN_num_bits(m)); BN_print(out,m);
printf("\nsimple ="); BN_print(out,r_simple);
printf("\nrecp ="); BN_print(out,r_recp);
printf("\nmont ="); BN_print(out,r_mont);
printf("\nmont_ct ="); BN_print(out,r_mont_const);
printf("\n");
EXIT(1);
}
}
BN_free(r_mont);
BN_free(r_mont_const);
BN_free(r_recp);
BN_free(r_simple);
BN_free(a);
BN_free(b);
BN_free(m);
BN_CTX_free(ctx);
ERR_remove_thread_state(NULL);
CRYPTO_mem_leaks(out);
BIO_free(out);
printf(" done\n");
EXIT(0);
err:
ERR_load_crypto_strings();
ERR_print_errors(out);
#ifdef OPENSSL_SYS_NETWARE
printf("ERROR\n");
#endif
EXIT(1);
return(1);
}

View file

@ -0,0 +1,3 @@
Cache RECP_CTX values
make the result argument independant of the inputs.
split up the _exp_ functions

View file

@ -0,0 +1,68 @@
/* vms-helper.c */
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
bn_div_words_abort(int i)
{
#ifdef BN_DEBUG
#if !defined(OPENSSL_NO_STDIO) && !defined(OPENSSL_SYS_WIN16)
fprintf(stderr,"Division would overflow (%d)\n",i);
#endif
abort();
#endif
}