diff options
Diffstat (limited to 'crypto/dsa/dsa_key.c')
| -rw-r--r-- | crypto/dsa/dsa_key.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/crypto/dsa/dsa_key.c b/crypto/dsa/dsa_key.c index dbf745a7f3..a3adb2fdde 100644 --- a/crypto/dsa/dsa_key.c +++ b/crypto/dsa/dsa_key.c @@ -102,19 +102,24 @@ static int dsa_builtin_keygen(DSA *dsa) pub_key=dsa->pub_key; { - BIGNUM local_prk; + BIGNUM *local_prk = NULL; BIGNUM *prk; if ((dsa->flags & DSA_FLAG_NO_EXP_CONSTTIME) == 0) { - BN_init(&local_prk); - prk = &local_prk; + local_prk = prk = BN_new(); + if(!local_prk) goto err; BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME); } else prk = priv_key; - if (!BN_mod_exp(pub_key,dsa->g,prk,dsa->p,ctx)) goto err; + if (!BN_mod_exp(pub_key,dsa->g,prk,dsa->p,ctx)) + { + if (local_prk != NULL) BN_free(local_prk); + goto err; + } + if (local_prk != NULL) BN_free(local_prk); } dsa->priv_key=priv_key; |