/* p12_mutl.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.
*/
/* ====================================================================
HMAC_CTX hmac;
unsigned char key[EVP_MAX_MD_SIZE], *salt;
int saltlen, iter;
+ int md_size;
if (!PKCS7_type_is_data(p12->authsafes))
{
PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_UNKNOWN_DIGEST_ALGORITHM);
return 0;
}
+ md_size = EVP_MD_size(md_type);
+ if (md_size < 0)
+ return 0;
if(!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_MAC_ID, iter,
- EVP_MD_size(md_type), key, md_type)) {
+ md_size, key, md_type)) {
PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_KEY_GEN_ERROR);
return 0;
}
HMAC_CTX_init(&hmac);
- HMAC_Init_ex(&hmac, key, EVP_MD_size(md_type), md_type, NULL);
- HMAC_Update(&hmac, p12->authsafes->d.data->data,
- p12->authsafes->d.data->length);
- HMAC_Final(&hmac, mac, maclen);
+ if (!HMAC_Init_ex(&hmac, key, md_size, md_type, NULL)
+ || !HMAC_Update(&hmac, p12->authsafes->d.data->data,
+ p12->authsafes->d.data->length)
+ || !HMAC_Final(&hmac, mac, maclen))
+ {
+ HMAC_CTX_cleanup(&hmac);
+ return 0;
+ }
HMAC_CTX_cleanup(&hmac);
return 1;
}