diff options
| -rwxr-xr-x | Configure | 1 | ||||
| -rw-r--r-- | crypto/bn/bn_lcl.h | 1 | ||||
| -rw-r--r-- | crypto/bn/bn_mont.c | 15 |
3 files changed, 17 insertions, 0 deletions
@@ -1227,6 +1227,7 @@ $bn_obj = $bn_asm unless $bn_obj ne ""; # bn86* is the only one implementing bn_*_part_words $cflags.=" -DOPENSSL_BN_ASM_PART_WORDS" if ($bn_obj =~ /bn86/); $cflags.=" -DOPENSSL_IA32_SSE2" if (!$no_sse2 && $bn_obj =~ /bn86/); +$cflags.=" -DOPENSSL_BN_ASM_MONT" if ($bn_obj =~ /\-mont|mo86\-/); $des_obj=$des_enc unless ($des_obj =~ /\.o$/); $bf_obj=$bf_enc unless ($bf_obj =~ /\.o$/); diff --git a/crypto/bn/bn_lcl.h b/crypto/bn/bn_lcl.h index ad4ca7ff30..27ac4397a1 100644 --- a/crypto/bn/bn_lcl.h +++ b/crypto/bn/bn_lcl.h @@ -481,6 +481,7 @@ 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 } diff --git a/crypto/bn/bn_mont.c b/crypto/bn/bn_mont.c index b5d35d10be..46b6eddf45 100644 --- a/crypto/bn/bn_mont.c +++ b/crypto/bn/bn_mont.c @@ -127,6 +127,21 @@ int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, { 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); |