From: Nikos Mavrogiannopoulos <nmav@gnutls.org>
Date: Mon, 29 Jul 2013 14:22:16 +0000 (+0200)
Subject: corrected overhead calculation in AEAD ciphers.
X-Git-Tag: gnutls_3_2_3~5
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fc8c2bf60193c9c4d9bc58898fce3d335558daae;p=thirdparty%2Fgnutls.git

corrected overhead calculation in AEAD ciphers.
---

diff --git a/lib/gnutls_dtls.c b/lib/gnutls_dtls.c
index 754c97277b..009b63cd2d 100644
--- a/lib/gnutls_dtls.c
+++ b/lib/gnutls_dtls.c
@@ -601,9 +601,7 @@ int t, ret;
 
   if (mac->id == GNUTLS_MAC_AEAD)
     {
-      t = _gnutls_cipher_get_iv_size(cipher);
-      total += t;
-
+      total += AEAD_EXPLICIT_DATA_SIZE;
       total += _gnutls_cipher_get_tag_size(cipher);
     }
   else
diff --git a/tests/mini-overhead.c b/tests/mini-overhead.c
index b4d90f63fd..1802079461 100644
--- a/tests/mini-overhead.c
+++ b/tests/mini-overhead.c
@@ -348,7 +348,7 @@ doit (void)
   /* 13 + 20(sha1) + 16(iv) + 16(max pad) */
   start("NONE:+VERS-DTLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA", 65);
   /* 13 + 16(tag) + 4(iv) */
-  start("NONE:+VERS-DTLS1.0:+AES-128-GCM:+AEAD:+SIGN-ALL:+COMP-NULL:+RSA", 33);
+  start("NONE:+VERS-DTLS1.0:+AES-128-GCM:+AEAD:+SIGN-ALL:+COMP-NULL:+RSA", 37);
   /* 13 + 20(tag) */
   start("NONE:+VERS-DTLS1.0:+SALSA20-256:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA", 33);
   /* 13 + 12(tag) */