diff options
| author | Geoff Thorpe <geoff@openssl.org> | 2003-11-04 22:54:49 +0000 |
|---|---|---|
| committer | Geoff Thorpe <geoff@openssl.org> | 2003-11-04 22:54:49 +0000 |
| commit | d870740cd75dd4f0cb66fb8c32653a7d47369706 (patch) | |
| tree | 0c6cb1ce0b1083c96419c432d1f05c3dff51320d /crypto/bn/bn_nist.c | |
| parent | d8ec0dcf457f4dec39f137657b702fcbeaf5cc04 (diff) | |
Put the first stage of my bignum debugging adventures into CVS. This code
is itself experimental, and in addition may cause execution to break on
existing openssl "bugs" that previously were harmless or at least
invisible.
Diffstat (limited to 'crypto/bn/bn_nist.c')
| -rw-r--r-- | crypto/bn/bn_nist.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/crypto/bn/bn_nist.c b/crypto/bn/bn_nist.c index ed148d845c..2e03d0709d 100644 --- a/crypto/bn/bn_nist.c +++ b/crypto/bn/bn_nist.c @@ -358,14 +358,15 @@ int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, #if 1 bn_clear_top2max(r); #endif - bn_fix_top(r); + bn_correct_top(r); if (BN_ucmp(r, field) >= 0) { bn_sub_words(r_d, r_d, _nist_p_192, BN_NIST_192_TOP); - bn_fix_top(r); + bn_correct_top(r); } + bn_check_top(r); return 1; } @@ -450,13 +451,14 @@ int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, #if 1 bn_clear_top2max(r); #endif - bn_fix_top(r); + bn_correct_top(r); if (BN_ucmp(r, field) >= 0) { bn_sub_words(r_d, r_d, _nist_p_224, BN_NIST_224_TOP); - bn_fix_top(r); + bn_correct_top(r); } + bn_check_top(r); return 1; #else return 0; @@ -608,13 +610,14 @@ int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, #if 1 bn_clear_top2max(r); #endif - bn_fix_top(r); + bn_correct_top(r); if (BN_ucmp(r, field) >= 0) { bn_sub_words(r_d, r_d, _nist_p_256, BN_NIST_256_TOP); - bn_fix_top(r); + bn_correct_top(r); } + bn_check_top(r); return 1; #else return 0; @@ -776,13 +779,14 @@ int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, #if 1 bn_clear_top2max(r); #endif - bn_fix_top(r); + bn_correct_top(r); if (BN_ucmp(r, field) >= 0) { bn_sub_words(r_d, r_d, _nist_p_384, BN_NIST_384_TOP); - bn_fix_top(r); + bn_correct_top(r); } + bn_check_top(r); return 1; #else return 0; @@ -824,7 +828,7 @@ int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, if (tmp->top == BN_NIST_521_TOP) tmp->d[BN_NIST_521_TOP-1] &= BN_NIST_521_TOP_MASK; - bn_fix_top(tmp); + bn_correct_top(tmp); if (!BN_uadd(r, tmp, r)) return 0; top = r->top; @@ -835,11 +839,12 @@ int BN_nist_mod_521(BIGNUM *r, const BIGNUM *a, const BIGNUM *field, BN_NIST_ADD_ONE(r_d) r_d[BN_NIST_521_TOP-1] &= BN_NIST_521_TOP_MASK; } - bn_fix_top(r); + bn_correct_top(r); ret = 1; err: BN_CTX_end(ctx); + bn_check_top(r); return ret; } |