-# Written by Matt Caswell for the OpenSSL project.
-# ====================================================================
-# Copyright (c) 1998-2015 The OpenSSL Project. All rights reserved.
+# Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#
-# 2. Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in
-# the documentation and/or other materials provided with the
-# distribution.
-#
-# 3. All advertising materials mentioning features or use of this
-# software must display the following acknowledgment:
-# "This product includes software developed by the OpenSSL Project
-# for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
-#
-# 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
-# endorse or promote products derived from this software without
-# prior written permission. For written permission, please contact
-# openssl-core@openssl.org.
-#
-# 5. Products derived from this software may not be called "OpenSSL"
-# nor may "OpenSSL" appear in their names without prior written
-# permission of the OpenSSL Project.
-#
-# 6. Redistributions of any form whatsoever must retain the following
-# acknowledgment:
-# "This product includes software developed by the OpenSSL Project
-# for use in the OpenSSL Toolkit (http://www.openssl.org/)"
-#
-# THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
-# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
-# ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
-# OF THE POSSIBILITY OF SUCH DAMAGE.
-# ====================================================================
-#
-# This product includes cryptographic software written by Eric Young
-# (eay@cryptsoft.com). This product includes software written by Tim
-# Hudson (tjh@cryptsoft.com).
+# Licensed under the OpenSSL license (the "License"). You may not use
+# this file except in compliance with the License. You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
use strict;
package TLSProxy::ServerKeyExchange;
-use parent 'TLSProxy::Message';
+use vars '@ISA';
+push @ISA, 'TLSProxy::Message';
sub new
{
{
my $self = shift;
- #Minimal SKE parsing. Only supports DHE at the moment (if its not DHE
- #the parsing data will be trash...which is ok as long as we don't try to
- #use it)
+ #Minimal SKE parsing. Only supports one known DHE ciphersuite at the moment
+ return if (TLSProxy::Proxy->ciphersuite()
+ != TLSProxy::Message::CIPHER_ADH_AES_128_SHA);
my $p_len = unpack('n', $self->data);
my $ptr = 2;
my $pub_key_len = unpack('n', substr($self->data, $ptr));
$ptr += 2;
my $pub_key = substr($self->data, $ptr, $pub_key_len);
- $ptr += $g_len;
+ $ptr += $pub_key_len;
#We assume its signed
my $sig_len = unpack('n', substr($self->data, $ptr));
- $ptr += 2;
- my $sig = substr($self->data, $ptr, $sig_len);
- $ptr += $sig_len;
+ my $sig = "";
+ if (defined $sig_len) {
+ $ptr += 2;
+ $sig = substr($self->data, $ptr, $sig_len);
+ $ptr += $sig_len;
+ }
$self->p($p);
$self->g($g);