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'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
if (common.hasFipsCrypto)
common.skip('not supported in FIPS mode');
const crypto = require('crypto');
const assert = require('assert');
function testCipher1(key) {
// Test encryption and decryption
const plaintext = 'Keep this a secret? No! Tell everyone about node.js!';
const cipher = crypto.createCipher('aes192', key);
// encrypt plaintext which is in utf8 format
// to a ciphertext which will be in hex
let ciph = cipher.update(plaintext, 'utf8', 'hex');
// Only use binary or hex, not base64.
ciph += cipher.final('hex');
const decipher = crypto.createDecipher('aes192', key);
let txt = decipher.update(ciph, 'hex', 'utf8');
txt += decipher.final('utf8');
assert.strictEqual(txt, plaintext, 'encryption and decryption');
// streaming cipher interface
// NB: In real life, it's not guaranteed that you can get all of it
// in a single read() like this. But in this case, we know it's
// quite small, so there's no harm.
const cStream = crypto.createCipher('aes192', key);
cStream.end(plaintext);
ciph = cStream.read();
const dStream = crypto.createDecipher('aes192', key);
dStream.end(ciph);
txt = dStream.read().toString('utf8');
assert.strictEqual(txt, plaintext, 'encryption and decryption with streams');
}
function testCipher2(key) {
// encryption and decryption with Base64
// reported in https://github.com/joyent/node/issues/738
const plaintext =
'32|RmVZZkFUVmpRRkp0TmJaUm56ZU9qcnJkaXNNWVNpTTU*|iXmckfRWZBGWWELw' +
'eCBsThSsfUHLeRe0KCsK8ooHgxie0zOINpXxfZi/oNG7uq9JWFVCk70gfzQH8ZUJ' +
'jAfaFg**';
const cipher = crypto.createCipher('aes256', key);
// encrypt plaintext which is in utf8 format
// to a ciphertext which will be in Base64
let ciph = cipher.update(plaintext, 'utf8', 'base64');
ciph += cipher.final('base64');
const decipher = crypto.createDecipher('aes256', key);
let txt = decipher.update(ciph, 'base64', 'utf8');
txt += decipher.final('utf8');
assert.strictEqual(txt, plaintext, 'encryption and decryption with Base64');
}
testCipher1('MySecretKey123');
testCipher1(Buffer.from('MySecretKey123'));
testCipher2('0123456789abcdef');
testCipher2(Buffer.from('0123456789abcdef'));
// Base64 padding regression test, see #4837.
{
const c = crypto.createCipher('aes-256-cbc', 'secret');
const s = c.update('test', 'utf8', 'base64') + c.final('base64');
assert.strictEqual(s, '375oxUQCIocvxmC5At+rvA==');
}
// Calling Cipher.final() or Decipher.final() twice should error but
// not assert. See #4886.
{
const c = crypto.createCipher('aes-256-cbc', 'secret');
try { c.final('xxx'); } catch (e) { /* Ignore. */ }
try { c.final('xxx'); } catch (e) { /* Ignore. */ }
try { c.final('xxx'); } catch (e) { /* Ignore. */ }
const d = crypto.createDecipher('aes-256-cbc', 'secret');
try { d.final('xxx'); } catch (e) { /* Ignore. */ }
try { d.final('xxx'); } catch (e) { /* Ignore. */ }
try { d.final('xxx'); } catch (e) { /* Ignore. */ }
}
// Regression test for #5482: string to Cipher#update() should not assert.
{
const c = crypto.createCipher('aes192', '0123456789abcdef');
c.update('update');
c.final();
}
// #5655 regression tests, 'utf-8' and 'utf8' are identical.
{
let c = crypto.createCipher('aes192', '0123456789abcdef');
c.update('update', ''); // Defaults to "utf8".
c.final('utf-8'); // Should not throw.
c = crypto.createCipher('aes192', '0123456789abcdef');
c.update('update', 'utf8');
c.final('utf-8'); // Should not throw.
c = crypto.createCipher('aes192', '0123456789abcdef');
c.update('update', 'utf-8');
c.final('utf8'); // Should not throw.
}
// Regression tests for https://github.com/nodejs/node/issues/8236.
{
const key = '0123456789abcdef';
const plaintext = 'Top secret!!!';
const c = crypto.createCipher('aes192', key);
let ciph = c.update(plaintext, 'utf16le', 'base64');
ciph += c.final('base64');
let decipher = crypto.createDecipher('aes192', key);
let txt;
assert.doesNotThrow(() => txt = decipher.update(ciph, 'base64', 'ucs2'));
assert.doesNotThrow(() => txt += decipher.final('ucs2'));
assert.strictEqual(txt, plaintext, 'decrypted result in ucs2');
decipher = crypto.createDecipher('aes192', key);
assert.doesNotThrow(() => txt = decipher.update(ciph, 'base64', 'ucs-2'));
assert.doesNotThrow(() => txt += decipher.final('ucs-2'));
assert.strictEqual(txt, plaintext, 'decrypted result in ucs-2');
decipher = crypto.createDecipher('aes192', key);
assert.doesNotThrow(() => txt = decipher.update(ciph, 'base64', 'utf-16le'));
assert.doesNotThrow(() => txt += decipher.final('utf-16le'));
assert.strictEqual(txt, plaintext, 'decrypted result in utf-16le');
}
// setAutoPadding/setAuthTag/setAAD should return `this`
{
const key = '0123456789';
const tagbuf = Buffer.from('tagbuf');
const aadbuf = Buffer.from('aadbuf');
const decipher = crypto.createDecipher('aes-256-gcm', key);
assert.strictEqual(decipher.setAutoPadding(), decipher);
assert.strictEqual(decipher.setAuthTag(tagbuf), decipher);
assert.strictEqual(decipher.setAAD(aadbuf), decipher);
}
// error throwing in setAAD/setAuthTag/getAuthTag/setAutoPadding
{
const key = '0123456789';
const aadbuf = Buffer.from('aadbuf');
const data = Buffer.from('test-crypto-cipher-decipher');
const cipher = crypto.createCipher('aes-256-gcm', key);
cipher.setAAD(aadbuf);
cipher.setAutoPadding();
assert.throws(() => {
cipher.getAuthTag();
}, /^Error: Attempting to get auth tag in unsupported state$/);
const encrypted = Buffer.concat([cipher.update(data), cipher.final()]);
const decipher = crypto.createDecipher('aes-256-gcm', key);
decipher.setAAD(aadbuf);
decipher.setAuthTag(cipher.getAuthTag());
decipher.setAutoPadding();
decipher.update(encrypted);
decipher.final();
assert.throws(() => {
decipher.setAAD(aadbuf);
}, /^Error: Attempting to set AAD in unsupported state$/);
assert.throws(() => {
decipher.setAuthTag(cipher.getAuthTag());
}, /^Error: Attempting to set auth tag in unsupported state$/);
assert.throws(() => {
decipher.setAutoPadding();
}, /^Error: Attempting to set auto padding in unsupported state$/);
}
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