1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var common = require('../common');
var assert = require('assert');
var tls = require('tls');
var fs = require('fs');
var nconns = 0;
// test only in TLSv1 to use DES which is no longer supported TLSv1.2
// to be safe when the default method is updated in the future
var SSL_Method = 'TLSv1_method';
var localhost = '127.0.0.1';
process.on('exit', function() {
assert.equal(nconns, 6);
});
function test(honorCipherOrder, clientCipher, expectedCipher, cb) {
var soptions = {
secureProtocol: SSL_Method,
key: fs.readFileSync(common.fixturesDir + '/keys/agent2-key.pem'),
cert: fs.readFileSync(common.fixturesDir + '/keys/agent2-cert.pem'),
ciphers: 'DES-CBC-SHA:AES256-SHA:RC4-SHA:ECDHE-RSA-AES256-SHA',
honorCipherOrder: !!honorCipherOrder
};
var server = tls.createServer(soptions, function(cleartextStream) {
nconns++;
// End socket to send CLOSE_NOTIFY and TCP FIN packet, otherwise
// it may hang for ~30 seconds in FIN_WAIT_1 state (at least on OSX).
cleartextStream.end();
});
server.listen(common.PORT, localhost, function() {
var coptions = {
rejectUnauthorized: false,
secureProtocol: SSL_Method
};
if (clientCipher) {
coptions.ciphers = clientCipher;
}
var client = tls.connect(common.PORT, localhost, coptions, function() {
var cipher = client.getCipher();
client.end();
server.close();
assert.equal(cipher.name, expectedCipher);
if (cb) cb();
});
});
}
test1();
function test1() {
// Client has the preference of cipher suites by default
test(false, 'AES256-SHA:DES-CBC-SHA:RC4-SHA','AES256-SHA', test2);
}
function test2() {
// Server has the preference of cipher suites where DES-CBC-SHA is in
// the first.
test(true, 'AES256-SHA:DES-CBC-SHA:RC4-SHA', 'DES-CBC-SHA', test3);
}
function test3() {
// Server has the preference of cipher suites. RC4-SHA is given
// higher priority over DES-CBC-SHA among client cipher suites.
test(true, 'RC4-SHA:AES256-SHA', 'AES256-SHA', test4);
}
function test4() {
// As client has only one cipher, server has no choice in regardless
// of honorCipherOrder.
test(true, 'RC4-SHA', 'RC4-SHA', test5);
}
function test5() {
// Client did not explicitly set ciphers. Ensure that client defaults to
// sane ciphers. Even though server gives top priority to DES-CBC-SHA
// it should not be negotiated because it's not in default client ciphers.
test(true, null, 'AES256-SHA', test6);
}
function test6() {
// Ensure that `tls.DEFAULT_CIPHERS` is used
SSL_Method = 'TLSv1_2_method';
tls.DEFAULT_CIPHERS = 'ECDHE-RSA-AES256-SHA';
test(true, null, 'ECDHE-RSA-AES256-SHA');
}
|
