diff options
| author | Dr. Stephen Henson <steve@openssl.org> | 2011-09-01 14:23:09 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2011-09-01 14:23:09 +0000 |
| commit | ff7231043f1f348764fdf3463e73cf7ed9d3ce85 (patch) | |
| tree | 71e3def64c459fa8eb9c19a76deaf48738fea382 /crypto/ecdsa | |
| parent | 5e92fd244cd77cac0923906bdeb27aa4880b758f (diff) | |
| download | openssl-ff7231043f1f348764fdf3463e73cf7ed9d3ce85.tar.gz | |
make timing attack protection unconditional
Diffstat (limited to 'crypto/ecdsa')
| -rw-r--r-- | crypto/ecdsa/ecs_ossl.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/crypto/ecdsa/ecs_ossl.c b/crypto/ecdsa/ecs_ossl.c index 8b407c5470..acdeea83d4 100644 --- a/crypto/ecdsa/ecs_ossl.c +++ b/crypto/ecdsa/ecs_ossl.c @@ -151,7 +151,6 @@ static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, } while (BN_is_zero(k)); -#ifdef ECDSA_POINT_MUL_NO_CONSTTIME /* We do not want timing information to leak the length of k, * so we compute G*k using an equivalent scalar of fixed * bit-length. */ @@ -159,7 +158,6 @@ static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp, if (!BN_add(k, k, order)) goto err; if (BN_num_bits(k) <= BN_num_bits(order)) if (!BN_add(k, k, order)) goto err; -#endif /* def(ECDSA_POINT_MUL_NO_CONSTTIME) */ /* compute r the x-coordinate of generator * k */ if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) |