60 lines
1.4 KiB
TypeScript
60 lines
1.4 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { assert } from 'chai';
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import crypto from 'crypto';
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import {
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CipherType,
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HashType,
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hash,
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sign,
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encrypt,
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decrypt,
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} from '../../Crypto';
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describe('SignalContext.Crypto', () => {
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describe('hash', () => {
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it('returns SHA512 hash of the input', () => {
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const result = hash(HashType.size512, Buffer.from('signal'));
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assert.strictEqual(
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Buffer.from(result).toString('base64'),
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'WxneQjrfSlY95Bi+SAzDAr2cf3mxUXePeNYn6DILN4a8NFr9VelTbP5tGHdthi+' +
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'mrJLqMZd1I6w8CxCnmJ/OFw=='
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);
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});
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});
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describe('sign', () => {
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it('returns hmac SHA256 hash of the input', () => {
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const result = sign(Buffer.from('secret'), Buffer.from('signal'));
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assert.strictEqual(
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Buffer.from(result).toString('base64'),
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'5ewbITW27c1F7dluF9KwGcVQSxmZp6mpVhPj3ww1Sh8='
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);
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});
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});
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describe('encrypt+decrypt', () => {
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it('returns original input', () => {
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const iv = crypto.randomBytes(16);
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const key = crypto.randomBytes(32);
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const input = Buffer.from('plaintext');
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const ciphertext = encrypt(CipherType.AES256CBC, {
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key,
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iv,
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plaintext: input,
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});
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const plaintext = decrypt(CipherType.AES256CBC, {
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key,
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iv,
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ciphertext,
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});
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assert.strictEqual(Buffer.from(plaintext).toString(), 'plaintext');
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});
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});
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});
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