diff options
| -rw-r--r-- | crypto/srp/srp_lib.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/crypto/srp/srp_lib.c b/crypto/srp/srp_lib.c index f146f820e7..ddd86b7517 100644 --- a/crypto/srp/srp_lib.c +++ b/crypto/srp/srp_lib.c @@ -168,7 +168,7 @@ BIGNUM *SRP_Calc_x(const BIGNUM *s, const char *user, const char *pass) { unsigned char dig[SHA_DIGEST_LENGTH]; EVP_MD_CTX *ctxt; - unsigned char *cs; + unsigned char *cs = NULL; BIGNUM *res = NULL; if ((s == NULL) || (user == NULL) || (pass == NULL)) @@ -190,13 +190,15 @@ BIGNUM *SRP_Calc_x(const BIGNUM *s, const char *user, const char *pass) BN_bn2bin(s, cs); if (!EVP_DigestUpdate(ctxt, cs, BN_num_bytes(s))) goto err; - OPENSSL_free(cs); + if (!EVP_DigestUpdate(ctxt, dig, sizeof(dig)) || !EVP_DigestFinal_ex(ctxt, dig, NULL)) goto err; res = BN_bin2bn(dig, sizeof(dig), NULL); + err: + OPENSSL_free(cs); EVP_MD_CTX_free(ctxt); return res; } |