X-Git-Url: https://git.distorted.org.uk/~mdw/secnet/blobdiff_plain/28db900b071a43718c4227e759fa76cb8c6359af..5ad34db2ccbbfbc936cd16121bed2110b70594ba:/transform.c

diff --git a/transform.c b/transform.c
index 289b02e..012f618 100644
--- a/transform.c
+++ b/transform.c
@@ -220,7 +220,7 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
 	serpent_encrypt(&ti->mackey,macplain,macacc);
     }
     serpent_encrypt(&ti->mackey,macacc,macacc);
-    if (memcmp(macexpected,macacc,16)!=0) {
+    if (!consttime_memeq(macexpected,macacc,16)!=0) {
 	*errmsg="invalid MAC";
 	return 1;
     }