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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-crypto-cipher-decipher.js |
'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');
common.expectWarning({
Warning: [
['Use Cipheriv for counter mode of aes-256-gcm'],
],
DeprecationWarning: [
['crypto.createCipher is deprecated.', 'DEP0106'],
]
});
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);
// 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);
}
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);
}
testCipher1('MySecretKey123');
testCipher1(Buffer.from('MySecretKey123'));
testCipher2('0123456789abcdef');
testCipher2(Buffer.from('0123456789abcdef'));
{
const Cipher = crypto.Cipher;
const instance = crypto.Cipher('aes-256-cbc', 'secret');
assert(instance instanceof Cipher, 'Cipher is expected to return a new ' +
'instance when called without `new`');
assert.throws(
() => crypto.createCipher(null),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: 'The "cipher" argument must be of type string. ' +
'Received null'
});
assert.throws(
() => crypto.createCipher('aes-256-cbc', null),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError'
});
assert.throws(
() => crypto.createCipher('aes-256-cbc', 'secret').update(null),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
});
assert.throws(
() => crypto.createCipher('aes-256-cbc', 'secret').setAAD(null),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
});
}
{
const Decipher = crypto.Decipher;
const instance = crypto.Decipher('aes-256-cbc', 'secret');
assert(instance instanceof Decipher, 'Decipher is expected to return a new ' +
'instance when called without `new`');
assert.throws(
() => crypto.createDecipher(null),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: 'The "cipher" argument must be of type string. ' +
'Received null'
});
assert.throws(
() => crypto.createDecipher('aes-256-cbc', 'secret').setAuthTag(null),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
});
assert.throws(
() => crypto.createDecipher('aes-256-cbc', null),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
});
}
// Base64 padding regression test, see
// https://github.com/nodejs/node-v0.x-archive/issues/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 https://github.com/nodejs/node-v0.x-archive/issues/4886.
{
const c = crypto.createCipher('aes-256-cbc', 'secret');
try { c.final('xxx'); } catch { /* Ignore. */ }
try { c.final('xxx'); } catch { /* Ignore. */ }
try { c.final('xxx'); } catch { /* Ignore. */ }
const d = crypto.createDecipher('aes-256-cbc', 'secret');
try { d.final('xxx'); } catch { /* Ignore. */ }
try { d.final('xxx'); } catch { /* Ignore. */ }
try { d.final('xxx'); } catch { /* Ignore. */ }
}
// Regression test for https://github.com/nodejs/node-v0.x-archive/issues/5482:
// string to Cipher#update() should not assert.
{
const c = crypto.createCipher('aes192', '0123456789abcdef');
c.update('update');
c.final();
}
// https://github.com/nodejs/node-v0.x-archive/issues/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;
txt = decipher.update(ciph, 'base64', 'ucs2');
txt += decipher.final('ucs2');
assert.strictEqual(txt, plaintext);
decipher = crypto.createDecipher('aes192', key);
txt = decipher.update(ciph, 'base64', 'ucs-2');
txt += decipher.final('ucs-2');
assert.strictEqual(txt, plaintext);
decipher = crypto.createDecipher('aes192', key);
txt = decipher.update(ciph, 'base64', 'utf-16le');
txt += decipher.final('utf-16le');
assert.strictEqual(txt, plaintext);
}
// setAutoPadding/setAuthTag/setAAD should return `this`
{
const key = '0123456789';
const tagbuf = Buffer.from('auth_tag');
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(),
{
code: 'ERR_CRYPTO_INVALID_STATE',
name: 'Error',
message: 'Invalid state for operation getAuthTag'
}
);
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),
{
code: 'ERR_CRYPTO_INVALID_STATE',
name: 'Error',
message: 'Invalid state for operation setAAD'
});
assert.throws(
() => decipher.setAuthTag(cipher.getAuthTag()),
{
code: 'ERR_CRYPTO_INVALID_STATE',
name: 'Error',
message: 'Invalid state for operation setAuthTag'
});
assert.throws(
() => decipher.setAutoPadding(),
{
code: 'ERR_CRYPTO_INVALID_STATE',
name: 'Error',
message: 'Invalid state for operation setAutoPadding'
}
);
}
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