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tls: test honor cipher order with TLS1.2
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Modified tests to work in FIPS and non-FIPS mode using TLS1.2 crypto.
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stefanmb committed Nov 16, 2015
1 parent e04ef62 commit cc835ad
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Showing 2 changed files with 26 additions and 21 deletions.
2 changes: 1 addition & 1 deletion test/parallel/test-crypto-binary-default.js
Original file line number Diff line number Diff line change
Expand Up @@ -348,7 +348,7 @@ var a4 = crypto.createHash('sha1').update('Test123').digest('buffer');

if (!common.hasFipsCrypto) {
var a0 = crypto.createHash('md5').update('Test123').digest('binary');
assert.equal(a1, 'h\u00ea\u00cb\u0097\u00d8o\fF!\u00fa+\u000e\u0017\u00ca' +
assert.equal(a0, 'h\u00ea\u00cb\u0097\u00d8o\fF!\u00fa+\u000e\u0017\u00ca' +
'\u00bd\u008c', 'Test MD5 as binary');
}

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45 changes: 25 additions & 20 deletions test/sequential/test-tls-honorcipherorder.js
Original file line number Diff line number Diff line change
Expand Up @@ -10,9 +10,10 @@ 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';

// We explicitly set TLS version to 1.2 so as to be safe when the
// default method is updated in the future
var SSL_Method = 'TLSv1_2_method';
var localhost = '127.0.0.1';

process.on('exit', function() {
Expand All @@ -24,7 +25,8 @@ function test(honorCipherOrder, clientCipher, expectedCipher, cb) {
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',
ciphers: 'AES256-SHA256:AES128-GCM-SHA256:AES128-SHA256:' +
'ECDHE-RSA-AES128-GCM-SHA256',
honorCipherOrder: !!honorCipherOrder
};

Expand Down Expand Up @@ -57,37 +59,40 @@ test1();

function test1() {
// Client has the preference of cipher suites by default
test(false, 'AES256-SHA:DES-CBC-SHA:RC4-SHA', 'AES256-SHA', test2);
test(false, 'AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256',
'AES128-GCM-SHA256', 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);
// Server has the preference of cipher suites, and AES256-SHA256 is
// the server's top choice.
test(true, 'AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256',
'AES256-SHA256', 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);
// Server has the preference of cipher suites. AES128-GCM-SHA256 is given
// higher priority over AES128-SHA256 among client cipher suites.
test(true, 'AES128-SHA256:AES128-GCM-SHA256', 'AES128-GCM-SHA256', test4);

}

function test4() {
// As client has only one cipher, server has no choice in regardless
// As client has only one cipher, server has no choice, irrespective
// of honorCipherOrder.
test(true, 'RC4-SHA', 'RC4-SHA', test5);
test(true, 'AES128-SHA256', 'AES128-SHA256', 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);
// Client did not explicitly set ciphers and client offers
// tls.DEFAULT_CIPHERS. All ciphers of the server are included in the
// default list so the negotiated cipher is selected according to the
// server's top preference of AES256-SHA256.
test(true, null, 'AES256-SHA256', 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');
tls.DEFAULT_CIPHERS = 'ECDHE-RSA-AES128-GCM-SHA256';
test(true, null, 'ECDHE-RSA-AES128-GCM-SHA256');
}

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