1 # Written by Matt Caswell for the OpenSSL project.
2 # ====================================================================
3 # Copyright (c) 1998-2015 The OpenSSL Project. All rights reserved.
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
9 # 1. Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
12 # 2. Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in
14 # the documentation and/or other materials provided with the
17 # 3. All advertising materials mentioning features or use of this
18 # software must display the following acknowledgment:
19 # "This product includes software developed by the OpenSSL Project
20 # for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
22 # 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 # endorse or promote products derived from this software without
24 # prior written permission. For written permission, please contact
25 # openssl-core@openssl.org.
27 # 5. Products derived from this software may not be called "OpenSSL"
28 # nor may "OpenSSL" appear in their names without prior written
29 # permission of the OpenSSL Project.
31 # 6. Redistributions of any form whatsoever must retain the following
33 # "This product includes software developed by the OpenSSL Project
34 # for use in the OpenSSL Toolkit (http://www.openssl.org/)"
36 # THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 # EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 # ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 # OF THE POSSIBILITY OF SUCH DAMAGE.
48 # ====================================================================
50 # This product includes cryptographic software written by Eric Young
51 # (eay@cryptsoft.com). This product includes software written by Tim
52 # Hudson (tjh@cryptsoft.com).
56 package TLSProxy::ServerKeyExchange;
59 push @ISA, 'TLSProxy::Message';
68 $message_frag_lens) = @_;
70 my $self = $class->SUPER::new(
72 TLSProxy::Message::MT_SERVER_KEY_EXCHANGE,
81 $self->{pub_key} = "";
91 #Minimal SKE parsing. Only supports DHE at the moment (if its not DHE
92 #the parsing data will be trash...which is ok as long as we don't try to
95 my $p_len = unpack('n', $self->data);
97 my $p = substr($self->data, $ptr, $p_len);
100 my $g_len = unpack('n', substr($self->data, $ptr));
102 my $g = substr($self->data, $ptr, $g_len);
105 my $pub_key_len = unpack('n', substr($self->data, $ptr));
107 my $pub_key = substr($self->data, $ptr, $pub_key_len);
108 $ptr += $pub_key_len;
110 #We assume its signed
111 my $sig_len = unpack('n', substr($self->data, $ptr));
113 if (defined $sig_len) {
115 $sig = substr($self->data, $ptr, $sig_len);
121 $self->pub_key($pub_key);
126 #Reconstruct the on-the-wire message data following changes
127 sub set_message_contents
132 $data = pack('n', length($self->p));
134 $data .= pack('n', length($self->g));
136 $data .= pack('n', length($self->pub_key));
137 $data .= $self->pub_key;
138 if (length($self->sig) > 0) {
139 $data .= pack('n', length($self->sig));
146 #Read/write accessors
168 $self->{pub_key} = shift;
170 return $self->{pub_key};
176 $self->{sig} = shift;