diff options
Diffstat (limited to 'openssl/crypto/evp/p5_crpt.c')
| -rw-r--r-- | openssl/crypto/evp/p5_crpt.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/openssl/crypto/evp/p5_crpt.c b/openssl/crypto/evp/p5_crpt.c index 7ecfa8dad..7d9c1f012 100644 --- a/openssl/crypto/evp/p5_crpt.c +++ b/openssl/crypto/evp/p5_crpt.c @@ -82,6 +82,8 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen, unsigned char *salt; const unsigned char *pbuf; int mdsize; + int rv = 0; + EVP_MD_CTX_init(&ctx); /* Extract useful info from parameter */ if (param == NULL || param->type != V_ASN1_SEQUENCE || @@ -104,29 +106,37 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen, if(!pass) passlen = 0; else if(passlen == -1) passlen = strlen(pass); - EVP_MD_CTX_init(&ctx); - EVP_DigestInit_ex(&ctx, md, NULL); - EVP_DigestUpdate(&ctx, pass, passlen); - EVP_DigestUpdate(&ctx, salt, saltlen); + if (!EVP_DigestInit_ex(&ctx, md, NULL)) + goto err; + if (!EVP_DigestUpdate(&ctx, pass, passlen)) + goto err; + if (!EVP_DigestUpdate(&ctx, salt, saltlen)) + goto err; PBEPARAM_free(pbe); - EVP_DigestFinal_ex(&ctx, md_tmp, NULL); + if (!EVP_DigestFinal_ex(&ctx, md_tmp, NULL)) + goto err; mdsize = EVP_MD_size(md); if (mdsize < 0) return 0; for (i = 1; i < iter; i++) { - EVP_DigestInit_ex(&ctx, md, NULL); - EVP_DigestUpdate(&ctx, md_tmp, mdsize); - EVP_DigestFinal_ex (&ctx, md_tmp, NULL); + if (!EVP_DigestInit_ex(&ctx, md, NULL)) + goto err; + if (!EVP_DigestUpdate(&ctx, md_tmp, mdsize)) + goto err; + if (!EVP_DigestFinal_ex (&ctx, md_tmp, NULL)) + goto err; } - EVP_MD_CTX_cleanup(&ctx); OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp)); memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher)); OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16); memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)), EVP_CIPHER_iv_length(cipher)); - EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de); + if (!EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de)) + goto err; OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE); OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH); OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH); - return 1; + rv = 1; + err: + return rv; } |