47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
// Copyright 2024 Signal Messenger, LLC
|
|
// SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
import { assert } from 'chai';
|
|
import { randomBytes, createHmac } from 'crypto';
|
|
|
|
import {
|
|
appendMacStream,
|
|
MAC_KEY_SIZE,
|
|
MAC_SIZE,
|
|
} from '../../util/appendMacStream';
|
|
import { generateConfigMatrix } from '../../util/generateConfigMatrix';
|
|
|
|
describe('appendMacStream', () => {
|
|
generateConfigMatrix({
|
|
size: [23, 1024, 1024 * 1024],
|
|
}).forEach(({ size }) => {
|
|
it(`should append mac to a ${size} byte stream`, async () => {
|
|
const macKey = randomBytes(MAC_KEY_SIZE);
|
|
|
|
const plaintext = randomBytes(size);
|
|
|
|
const stream = appendMacStream(macKey);
|
|
stream.end(plaintext);
|
|
|
|
const chunks = new Array<Buffer>();
|
|
for await (const chunk of stream) {
|
|
chunks.push(chunk);
|
|
}
|
|
|
|
const buf = Buffer.concat(chunks);
|
|
|
|
const hmac = createHmac('sha256', macKey);
|
|
hmac.update(plaintext);
|
|
const expectedMac = hmac.digest();
|
|
|
|
assert.strictEqual(
|
|
buf.slice(0, -MAC_SIZE).toString('hex'),
|
|
plaintext.toString('hex')
|
|
);
|
|
assert.strictEqual(
|
|
buf.slice(-MAC_SIZE).toString('hex'),
|
|
expectedMac.toString('hex')
|
|
);
|
|
});
|
|
});
|
|
});
|