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'use strict';
const common = require('../common');
const assert = require('assert');
const crypto = require('crypto');
if (!common.hasCrypto) {
console.log('1..0 # Skipped: node compiled without OpenSSL.');
return;
}
assert.throws(function() {
crypto.getDiffieHellman('unknown-group');
});
assert.throws(function() {
crypto.getDiffieHellman('modp1').setPrivateKey('');
});
assert.throws(function() {
crypto.getDiffieHellman('modp1').setPublicKey('');
});
var hashes = {
modp1: '630e9acd2cc63f7e80d8507624ba60ac0757201a',
modp2: '18f7aa964484137f57bca64b21917a385b6a0b60',
modp5: 'c0a8eec0c2c8a5ec2f9c26f9661eb339a010ec61',
modp14: 'af5455606fe74cec49782bb374e4c63c9b1d132c',
modp15: '7bdd39e5cdbb9748113933e5c2623b559c534e74',
modp16: 'daea5277a7ad0116e734a8e0d2f297ef759d1161',
modp17: '3b62aaf0142c2720f0bf26a9589b0432c00eadc1',
modp18: 'a870b491bbbec9b131ae9878d07449d32e54f160'
};
for (const name in hashes) {
var group = crypto.getDiffieHellman(name);
var private_key = group.getPrime('hex');
var hash1 = hashes[name];
var hash2 = crypto.createHash('sha1')
.update(private_key.toUpperCase()).digest('hex');
assert.equal(hash1, hash2);
assert.equal(group.getGenerator('hex'), '02');
}
for (const name in hashes) {
// modp1 is 768 bits, FIPS requires >= 1024
if (name == 'modp1' && common.hasFipsCrypto)
continue;
var group1 = crypto.getDiffieHellman(name);
var group2 = crypto.getDiffieHellman(name);
group1.generateKeys();
group2.generateKeys();
var key1 = group1.computeSecret(group2.getPublicKey());
var key2 = group2.computeSecret(group1.getPublicKey());
assert.deepStrictEqual(key1, key2);
}