From: Nikos Mavrogiannopoulos <nmav@redhat.com>
Date: Mon, 5 Oct 2015 12:31:53 +0000 (+0200)
Subject: added text on _gnutls_dh_compute_key
X-Git-Tag: gnutls_3_5_0~650
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b3ef6ccf1c8c867c2b7688f7fbc116baa764f2bd;p=thirdparty%2Fgnutls.git

added text on _gnutls_dh_compute_key
---

diff --git a/lib/nettle/pk.c b/lib/nettle/pk.c
index 8b3cba6bf6..c7ef0d78c5 100644
--- a/lib/nettle/pk.c
+++ b/lib/nettle/pk.c
@@ -954,6 +954,8 @@ int _gnutls_dh_generate_key(gnutls_dh_params_t dh_params,
  	return ret;
 }
 
+/* Note that the value of Z will have the leading bytes stripped if they are zero -
+ * which follows the TLS approach. */
 int _gnutls_dh_compute_key(gnutls_dh_params_t dh_params,
 			   const gnutls_datum_t *priv_key, const gnutls_datum_t *pub_key,
 			   const gnutls_datum_t *peer_key, gnutls_datum_t *Z)