node/test/parallel/test-crypto-padding-aes256.js
Jeremiah Senkpiel 52bae222a3 test: abstract skip functionality to common
The tap skipping output is so prevalent yet obscure in nature that we
ought to move it into it's own function in test/common.js

PR-URL: https://github.com/nodejs/node/pull/6697
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
2016-05-12 16:43:35 -04:00

49 lines
1.5 KiB
JavaScript

'use strict';
var common = require('../common');
var assert = require('assert');
if (!common.hasCrypto) {
common.skip('missing crypto');
return;
}
var crypto = require('crypto');
crypto.DEFAULT_ENCODING = 'buffer';
function aes256(decipherFinal) {
var iv = Buffer.from('00000000000000000000000000000000', 'hex');
var key = Buffer.from('0123456789abcdef0123456789abcdef' +
'0123456789abcdef0123456789abcdef', 'hex');
function encrypt(val, pad) {
var c = crypto.createCipheriv('aes256', key, iv);
c.setAutoPadding(pad);
return c.update(val, 'utf8', 'binary') + c.final('binary');
}
function decrypt(val, pad) {
var c = crypto.createDecipheriv('aes256', key, iv);
c.setAutoPadding(pad);
return c.update(val, 'binary', 'utf8') + c[decipherFinal]('utf8');
}
// echo 0123456789abcdef0123456789abcdef \
// | openssl enc -e -aes256 -nopad -K <key> -iv <iv> \
// | openssl enc -d -aes256 -nopad -K <key> -iv <iv>
var plaintext = '0123456789abcdef0123456789abcdef'; // multiple of block size
var encrypted = encrypt(plaintext, false);
var decrypted = decrypt(encrypted, false);
assert.equal(decrypted, plaintext);
// echo 0123456789abcdef0123456789abcde \
// | openssl enc -e -aes256 -K <key> -iv <iv> \
// | openssl enc -d -aes256 -K <key> -iv <iv>
plaintext = '0123456789abcdef0123456789abcde'; // not a multiple
encrypted = encrypt(plaintext, true);
decrypted = decrypt(encrypted, true);
assert.equal(decrypted, plaintext);
}
aes256('final');
aes256('finaltol');