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denoland-deno/tests/node_compat/test/parallel/test-tls-dhe.js

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// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 20.11.1
// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
// 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 { X509Certificate } = require('crypto');
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');
// Prefer DHE over ECDHE when possible.
const dheCipher = 'DHE-RSA-AES128-SHA256';
const ecdheCipher = 'ECDHE-RSA-AES128-SHA256';
const ciphers = `${dheCipher}:${ecdheCipher}`;
// 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${n}.pem`;
return fixtures.readKey(keyname);
}
function test(dhparam, keylen, expectedCipher) {
const options = {
key,
cert,
ciphers,
dhparam,
maxVersion: 'TLSv1.2',
};
const server = tls.createServer(options, (conn) => conn.end());
server.listen(0, '127.0.0.1', common.mustCall(() => {
const args = ['s_client', '-connect', `127.0.0.1:${server.address().port}`,
'-cipher', `${ciphers}:@SECLEVEL=1`];
execFile(common.opensslCli, args, common.mustSucceed((stdout) => {
assert(keylen === null ||
stdout.includes(`Server Temp Key: DH, ${keylen} bits`));
assert(stdout.includes(`Cipher : ${expectedCipher}`));
server.close();
}));
}));
return once(server, 'close');
}
function testCustomParam(keylen, expectedCipher) {
const dhparam = loadDHParam(keylen);
if (keylen === 'error') keylen = null;
return test(dhparam, keylen, expectedCipher);
}
(async () => {
// By default, DHE is disabled while ECDHE is enabled.
for (const dhparam of [undefined, null]) {
await test(dhparam, null, ecdheCipher);
}
// The DHE parameters selected by OpenSSL depend on the strength of the
// certificate's key. For this test, we can assume that the modulus length
// of the certificate's key is equal to the size of the DHE parameter, but
// that is really only true for a few modulus lengths.
const {
publicKey: { asymmetricKeyDetails: { modulusLength } }
} = new X509Certificate(cert);
await test('auto', modulusLength, dheCipher);
assert.throws(() => {
testCustomParam(512);
}, /DH parameter is less than 1024 bits/);
// Custom DHE parameters are supported (but discouraged).
await testCustomParam(1024, dheCipher);
await testCustomParam(2048, dheCipher);
// Invalid DHE parameters are discarded. ECDHE remains enabled.
await testCustomParam('error', ecdheCipher);
})().then(common.mustCall());