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| 'use strict';
|
| var assert = require('assert');
| var crypto = require('crypto');
| var Buffer = require('buffer').Buffer;
|
| var des = require('../');
|
| var fixtures = require('./fixtures');
| var bin = fixtures.bin;
|
| describe('DES-CBC', function() {
| var CBC = des.CBC.instantiate(des.DES);
|
| describe('encryption/decryption', function() {
| var vectors = [
| {
| key: '133457799bbcdff1',
| iv: '0102030405060708',
| input: '0123456789abcdef'
| },
| {
| key: '0000000000000000',
| iv: 'ffffffffffffffff',
| input: '0000000000000000'
| },
| {
| key: 'a3a3a3a3b3b3b3b3',
| iv: 'cdcdcdcdcdcdcdcd',
| input: 'cccccccccccccccc'
| },
| {
| key: 'deadbeefabbadead',
| iv: 'a0da0da0da0da0da',
| input: '0102030405060708090a'
| },
| {
| key: 'aabbccddeeff0011',
| iv: 'fefefefefefefefe',
| input: '0102030405060708090a0102030405060708090a0102030405060708090a' +
| '0102030405060708090a0102030405060607080a0102030405060708090a'
| }
| ];
|
| vectors.forEach(function(vec, i) {
| it('should encrypt vector ' + i, function() {
| var key = new Buffer(vec.key, 'hex');
| var iv = new Buffer(vec.iv, 'hex');
| var input = new Buffer(vec.input, 'hex');
|
| var enc = CBC.create({
| type: 'encrypt',
| key: key,
| iv: iv
| });
| var out = new Buffer(enc.update(input).concat(enc.final()));
|
| var cipher = crypto.createCipheriv('des-cbc', key, iv);
| var expected = Buffer.concat([ cipher.update(input), cipher.final() ]);
|
| assert.deepEqual(out, expected);
|
| var dec = CBC.create({
| type: 'decrypt',
| key: key,
| iv: iv
| });
| assert.deepEqual(new Buffer(dec.update(out).concat(dec.final())),
| input);
| });
| });
| });
| });
|
|
