X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=lib%2Fsilccore%2Fsilcchannel.c;h=5254c9ed59eb23d9b51b94623a058ba5d271c749;hb=025071b92db9e9933a00aafef1e60baef53fec08;hp=2bd7eb6fce3351cb8fbee08cc26a0856ba4d7619;hpb=486df9cbf554ad550bdaeb0429fbad278604aa0e;p=silc.git

diff --git a/lib/silccore/silcchannel.c b/lib/silccore/silcchannel.c
index 2bd7eb6f..5254c9ed 100644
--- a/lib/silccore/silcchannel.c
+++ b/lib/silccore/silcchannel.c
@@ -304,9 +304,18 @@ bool silc_channel_message_payload_decrypt(unsigned char *data,
     silc_hmac_update(hmac, data + (data_len - iv_len), iv_len);
     silc_hmac_final(hmac, mac2, &mac_len);
     if (memcmp(mac, mac2, mac_len)) {
+#if 1
+      /* Backwards support for old mac checking, remove in 1.0 */
+      silc_hmac_make(hmac, dst, (data_len - iv_len - mac_len), mac2, &mac_len);
+      if (memcmp(mac, mac2, mac_len)) {
+#endif
+
       SILC_LOG_DEBUG(("Channel message MACs does not match"));
       silc_free(dst);
       return FALSE;
+#if 1
+      }
+#endif
     }
     SILC_LOG_DEBUG(("MAC is Ok"));