diff options
| author | Bodo Möller <bodo@openssl.org> | 2000-09-19 17:21:52 +0000 |
|---|---|---|
| committer | Bodo Möller <bodo@openssl.org> | 2000-09-19 17:21:52 +0000 |
| commit | f4364e0730a9c3468cfd7212dd75374ea3b0ea4f (patch) | |
| tree | b23934772a6e897b0ea1d21f0e9d5c6cc5a00e4b /crypto/bn/bn_mont.c | |
| parent | fae876263018d91f33b48fd2b6e6c2c328b8a166 (diff) | |
Disable buggy code variant in BN_mod_mul_montgomery that was enabled
in 0.9.6-beta1 and 0.9.6-beta2 and caused the BN_mont_exp_mont_word()
failure (bug report "openssh 2.2.0p1 fails with openssl 0.9.6-beta1").
Diffstat (limited to 'crypto/bn/bn_mont.c')
| -rw-r--r-- | crypto/bn/bn_mont.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/crypto/bn/bn_mont.c b/crypto/bn/bn_mont.c index ca58ad33d2..932f5cecef 100644 --- a/crypto/bn/bn_mont.c +++ b/crypto/bn/bn_mont.c @@ -85,7 +85,26 @@ int BN_mod_mul_montgomery(BIGNUM *r, BIGNUM *a, BIGNUM *b, if (a == b) { -#if 1 +#if 0 /* buggy -- try squaring g in the following parameters + (but note that squaring 2 or 4 works): +Diffie-Hellman-Parameters: (1024 bit) + prime: + 00:ff:ff:ff:ff:ff:ff:ff:ff:c9:0f:da:a2:21:68: + c2:34:c4:c6:62:8b:80:dc:1c:d1:29:02:4e:08:8a: + 67:cc:74:02:0b:be:a6:3b:13:9b:22:51:4a:08:79: + 8e:34:04:dd:ef:95:19:b3:cd:3a:43:1b:30:2b:0a: + 6d:f2:5f:14:37:4f:e1:35:6d:6d:51:c2:45:e4:85: + b5:76:62:5e:7e:c6:f4:4c:42:e9:a6:37:ed:6b:0b: + ff:5c:b6:f4:06:b7:ed:ee:38:6b:fb:5a:89:9f:a5: + ae:9f:24:11:7c:4b:1f:e6:49:28:66:51:ec:e6:53: + 81:ff:ff:ff:ff:ff:ff:ff:ff + generator: 8 (0x8) +-----BEGIN DH PARAMETERS----- +MIGHAoGBAP//////////yQ/aoiFowjTExmKLgNwc0SkCTgiKZ8x0Agu+pjsTmyJR +Sgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVtbVHCReSFtXZiXn7G9ExC6aY37WsL +/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR7OZTgf//////////AgEI +-----END DH PARAMETERS----- +*/ bn_wexpand(tmp,a->top*2); bn_wexpand(tmp2,a->top*4); bn_sqr_recursive(tmp->d,a->d,a->top,tmp2->d); |