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'use strict';
var common = require('../common');
var assert = require('assert');
try {
var crypto = require('crypto');
} catch (e) {
console.log('Not compiled with OPENSSL support.');
process.exit();
}
assert.throws(function() {
crypto.getDiffieHellman('unknown-group');
});
assert.throws(function() {
crypto.getDiffieHellman('modp1').setPrivateKey('');
});
assert.throws(function() {
crypto.getDiffieHellman('modp1').setPublicKey('');
});
var hashes = {
modp1 : 'b4b330a6ffeacfbd861e7fe2135b4431',
modp2 : '7c3c5cad8b9f378d88f1dd64a4b6413a',
modp5 : 'b1d2acc22c542e08669a5c5ae812694d',
modp14 : '8d041538cecc1a7d915ba4b718f8ad20',
modp15 : 'dc3b93def24e078c4fbf92d5e14ba69b',
modp16 : 'a273487f46f699461f613b3878d9dfd9',
modp17 : 'dc76e09935310348c492de9bd82014d0',
modp18 : 'db08973bfd2371758a69db180871c993'
};
for (var name in hashes) {
var group = crypto.getDiffieHellman(name);
var private_key = group.getPrime('hex');
var hash1 = hashes[name];
var hash2 = crypto.createHash('md5')
.update(private_key.toUpperCase()).digest('hex');
assert.equal(hash1, hash2);
assert.equal(group.getGenerator('hex'), '02');
}
for (var name in hashes) {
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.deepEqual(key1, key2);
}