Stop using OpenSSL for hashes.

[meshlink] / src / openssl / prf.c

diff --git a/src/openssl/prf.c b/src/openssl/prf.c
index 943bd6207fed171b751533a6ba584841c20ff3c6..88bb914b65da6ee1ed1fdc0d11c5a3cbecc9d5f0 100644 (file)
--- a/src/openssl/prf.c
+++ b/src/openssl/prf.c
@@ -1,6 +1,6 @@
 /*
     prf.c -- Pseudo-Random Function for key material generation
-    Copyright (C) 2011-2013 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -54,10 +54,16 @@ static bool prf_xor(int nid, const char *secret, size_t secretlen, char *seed, s
 
        while(outlen > 0) {
                /* Inner HMAC */
-               digest_create(digest, data, len + seedlen, data);
+               if(!digest_create(digest, data, len + seedlen, data)) {
+                       digest_close(digest);
+                       return false;
+               }
 
                /* Outer HMAC */
-               digest_create(digest, data, len + seedlen, hash);
+               if(!digest_create(digest, data, len + seedlen, hash)) {
+                       digest_close(digest);
+                       return false;
+               }
 
                /* XOR the results of the outer HMAC into the out buffer */
                for(int i = 0; i < len && i < outlen; i++)