diff options
| author | Billy Brumley <bbrumley@gmail.com> | 2018-04-11 10:10:58 +0300 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2018-04-16 16:21:05 +0100 |
| commit | 349a41da1ad88ad87825414752a8ff5fdd6a6c3f (patch) | |
| tree | f7de2191483048af0e3dd410bc74eb8ba41c143e /crypto | |
| parent | d1a64149b061172d120559aea289498ec680b497 (diff) | |
RSA key generation: ensure BN_mod_inverse and BN_mod_exp_mont both get called with BN_FLG_CONSTTIME flag set.
CVE-2018-0737
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 6939eab03a6e23d2bd2c3f5e34fe1d48e542e787)
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/rsa/rsa_gen.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/rsa/rsa_gen.c b/crypto/rsa/rsa_gen.c index 9ca5dfefb7..42b89a8dfa 100644 --- a/crypto/rsa/rsa_gen.c +++ b/crypto/rsa/rsa_gen.c @@ -156,6 +156,8 @@ static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value, if (BN_copy(rsa->e, e_value) == NULL) goto err; + BN_set_flags(rsa->p, BN_FLG_CONSTTIME); + BN_set_flags(rsa->q, BN_FLG_CONSTTIME); BN_set_flags(r2, BN_FLG_CONSTTIME); /* generate p and q */ for (;;) { |