/* p5_crpt.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 1999.
*/
/* ====================================================================
int saltlen, iter;
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 ||
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, EVP_MD_size(md));
- 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:
+ EVP_MD_CTX_cleanup(&ctx);
+ return rv;
}