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'use strict';
const common = require('../common');
const assert = require('assert');
if (!common.hasCrypto) {
common.skip('missing crypto');
return;
}
const crypto = require('crypto');
function testCipher1(key, iv) {
// Test encryption and decryption with explicit key and iv
const plaintext =
'32|RmVZZkFUVmpRRkp0TmJaUm56ZU9qcnJkaXNNWVNpTTU*|iXmckfRWZBGWWELw' +
'eCBsThSsfUHLeRe0KCsK8ooHgxie0zOINpXxfZi/oNG7uq9JWFVCk70gfzQH8ZUJ' +
'jAfaFg**';
const cipher = crypto.createCipheriv('des-ede3-cbc', key, iv);
let ciph = cipher.update(plaintext, 'utf8', 'hex');
ciph += cipher.final('hex');
const decipher = crypto.createDecipheriv('des-ede3-cbc', key, iv);
let txt = decipher.update(ciph, 'hex', 'utf8');
txt += decipher.final('utf8');
assert.strictEqual(txt, plaintext, 'encryption/decryption with key and iv');
// 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.createCipheriv('des-ede3-cbc', key, iv);
cStream.end(plaintext);
ciph = cStream.read();
const dStream = crypto.createDecipheriv('des-ede3-cbc', key, iv);
dStream.end(ciph);
txt = dStream.read().toString('utf8');
assert.strictEqual(txt, plaintext, 'streaming cipher iv');
}
function testCipher2(key, iv) {
// Test encryption and decryption with explicit key and iv
const plaintext =
'32|RmVZZkFUVmpRRkp0TmJaUm56ZU9qcnJkaXNNWVNpTTU*|iXmckfRWZBGWWELw' +
'eCBsThSsfUHLeRe0KCsK8ooHgxie0zOINpXxfZi/oNG7uq9JWFVCk70gfzQH8ZUJ' +
'jAfaFg**';
const cipher = crypto.createCipheriv('des-ede3-cbc', key, iv);
let ciph = cipher.update(plaintext, 'utf8', 'buffer');
ciph = Buffer.concat([ciph, cipher.final('buffer')]);
const decipher = crypto.createDecipheriv('des-ede3-cbc', key, iv);
let txt = decipher.update(ciph, 'buffer', 'utf8');
txt += decipher.final('utf8');
assert.strictEqual(txt, plaintext, 'encryption/decryption with key and iv');
}
testCipher1('0123456789abcd0123456789', '12345678');
testCipher1('0123456789abcd0123456789', Buffer.from('12345678'));
testCipher1(Buffer.from('0123456789abcd0123456789'), '12345678');
testCipher1(Buffer.from('0123456789abcd0123456789'), Buffer.from('12345678'));
testCipher2(Buffer.from('0123456789abcd0123456789'), Buffer.from('12345678'));
// Zero-sized IV should be accepted in ECB mode.
crypto.createCipheriv('aes-128-ecb', Buffer.alloc(16), Buffer.alloc(0));
const errMessage = /Invalid IV length/;
// But non-empty IVs should be rejected.
for (let n = 1; n < 256; n += 1) {
assert.throws(
() => crypto.createCipheriv('aes-128-ecb', Buffer.alloc(16),
Buffer.alloc(n)),
errMessage);
}
// Correctly sized IV should be accepted in CBC mode.
crypto.createCipheriv('aes-128-cbc', Buffer.alloc(16), Buffer.alloc(16));
// But all other IV lengths should be rejected.
for (let n = 0; n < 256; n += 1) {
if (n === 16) continue;
assert.throws(
() => crypto.createCipheriv('aes-128-cbc', Buffer.alloc(16),
Buffer.alloc(n)),
errMessage);
}
// Zero-sized IV should be rejected in GCM mode.
assert.throws(
() => crypto.createCipheriv('aes-128-gcm', Buffer.alloc(16),
Buffer.alloc(0)),
errMessage);
// But all other IV lengths should be accepted.
for (let n = 1; n < 256; n += 1) {
if (common.hasFipsCrypto && n < 12) continue;
crypto.createCipheriv('aes-128-gcm', Buffer.alloc(16), Buffer.alloc(n));
}
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