diff options
Diffstat (limited to 'crypto/openssl/crypto/bn/bn_word.c')
| -rw-r--r-- | crypto/openssl/crypto/bn/bn_word.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/crypto/openssl/crypto/bn/bn_word.c b/crypto/openssl/crypto/bn/bn_word.c index 73157a7..cd59baa 100644 --- a/crypto/openssl/crypto/bn/bn_word.c +++ b/crypto/openssl/crypto/bn/bn_word.c @@ -115,7 +115,7 @@ int BN_add_word(BIGNUM *a, BN_ULONG w) a->neg=0; i=BN_sub_word(a,w); if (!BN_is_zero(a)) - a->neg=1; + a->neg=!(a->neg); return(i); } w&=BN_MASK2; @@ -140,7 +140,7 @@ int BN_sub_word(BIGNUM *a, BN_ULONG w) { int i; - if (a->neg) + if (BN_is_zero(a) || a->neg) { a->neg=0; i=BN_add_word(a,w); @@ -182,11 +182,16 @@ int BN_mul_word(BIGNUM *a, BN_ULONG w) w&=BN_MASK2; if (a->top) { - ll=bn_mul_words(a->d,a->d,a->top,w); - if (ll) + if (w == 0) + BN_zero(a); + else { - if (bn_wexpand(a,a->top+1) == NULL) return(0); - a->d[a->top++]=ll; + 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; + } } } return(1); |
