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nodejs/test/parallel/test-crypto-des3-wrap.js
Yihong Wang f7cdeba548
crypto: allocate more memory for cipher.update()
For key wrapping algorithms, calling EVP_CipherUpdate() with null output
could obtain the size for the ciphertext. Then use the returned size to
allocate output buffer. Also add a test case to verify des3-wrap.

Signed-off-by: Yihong Wang <yh.wang@ibm.com>

PR-URL: https://github.com/nodejs/node/pull/20370
Fixes: https://github.com/nodejs/node/issues/19655
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
2018-05-04 11:16:16 +02:00

26 lines
885 B
JavaScript

'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const crypto = require('crypto');
// Test case for des-ede3 wrap/unwrap. des3-wrap needs extra 2x blocksize
// then plaintext to store ciphertext.
const test = {
key: Buffer.from('3c08e25be22352910671cfe4ba3652b1220a8a7769b490ba', 'hex'),
iv: Buffer.alloc(0),
plaintext: '32|RmVZZkFUVmpRRkp0TmJaUm56ZU9qcnJkaXNNWVNpTTU*|iXmckfRWZBG' +
'WWELweCBsThSsfUHLeRe0KCsK8ooHgxie0zOINpXxfZi/oNG7uq9JWFVCk70gfzQH8ZU' +
'JjAfaFg**'
};
const cipher = crypto.createCipheriv('des3-wrap', test.key, test.iv);
const ciphertext = cipher.update(test.plaintext, 'utf8');
const decipher = crypto.createDecipheriv('des3-wrap', test.key, test.iv);
const msg = decipher.update(ciphertext, 'buffer', 'utf8');
assert.strictEqual(msg, test.plaintext);