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test-tls-dhe.js
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test-tls-dhe.js
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// Flags: --no-warnings
// 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.
'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
if (!common.opensslCli)
common.skip('missing openssl-cli');
const assert = require('assert');
const { once } = require('events');
const tls = require('tls');
const { execFile } = require('child_process');
const fixtures = require('../common/fixtures');
const key = fixtures.readKey('agent2-key.pem');
const cert = fixtures.readKey('agent2-cert.pem');
const ciphers = 'DHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
// Test will emit a warning because the DH parameter size is < 2048 bits
common.expectWarning('SecurityWarning',
'DH parameter is less than 2048 bits');
function loadDHParam(n) {
const keyname = `dh${n}.pem`;
return fixtures.readKey(keyname);
}
function test(keylen, expectedCipher) {
const options = {
key: key,
cert: cert,
ciphers: ciphers,
dhparam: loadDHParam(keylen),
maxVersion: 'TLSv1.2',
};
const server = tls.createServer(options, (conn) => conn.end());
server.listen(0, '127.0.0.1', common.mustCall(() => {
const args = ['s_client', '-connect', `127.0.0.1:${server.address().port}`,
'-cipher', ciphers];
execFile(common.opensslCli, args, common.mustSucceed((stdout) => {
assert(keylen === 'error' ||
stdout.includes(`Server Temp Key: DH, ${keylen} bits`));
assert(stdout.includes(`Cipher : ${expectedCipher}`));
server.close();
}));
}));
return once(server, 'close');
}
(async () => {
assert.throws(() => {
test(512, 'DHE-RSA-AES128-SHA256');
}, /DH parameter is less than 1024 bits/);
await test(1024, 'DHE-RSA-AES128-SHA256');
await test(2048, 'DHE-RSA-AES128-SHA256');
await test('error', 'ECDHE-RSA-AES128-SHA256');
})().then(common.mustCall());