X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fopenssl%2Fprf.c;h=88bb914b65da6ee1ed1fdc0d11c5a3cbecc9d5f0;hb=70b9e071d137c4c9c9edc4e916fcddfed39aea7d;hp=943bd6207fed171b751533a6ba584841c20ff3c6;hpb=9b9230a0a79c670b86f54fadd2807b864ff9d91f;p=meshlink

diff --git a/src/openssl/prf.c b/src/openssl/prf.c
index 943bd620..88bb914b 100644
--- 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++)