Use non-subtle crypto in libsignal-protocol

ts/test-both/util/synchronousCrypto_test.ts

@@ -0,0 +1,48 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+import crypto from 'crypto';
+
+import { typedArrayToArrayBuffer as toArrayBuffer } from '../../Crypto';
+import { hash, sign, encrypt, decrypt } from '../../util/synchronousCrypto';
+
+describe('synchronousCrypto', () => {
+  describe('hash', () => {
+    it('returns SHA512 hash of the input', () => {
+      const result = hash(toArrayBuffer(Buffer.from('signal')));
+      assert.strictEqual(
+        Buffer.from(result).toString('base64'),
+        'WxneQjrfSlY95Bi+SAzDAr2cf3mxUXePeNYn6DILN4a8NFr9VelTbP5tGHdthi+' +
+          'mrJLqMZd1I6w8CxCnmJ/OFw=='
+      );
+    });
+  });
+
+  describe('sign', () => {
+    it('returns hmac SHA256 hash of the input', () => {
+      const result = sign(
+        toArrayBuffer(Buffer.from('secret')),
+        toArrayBuffer(Buffer.from('signal'))
+      );
+
+      assert.strictEqual(
+        Buffer.from(result).toString('base64'),
+        '5ewbITW27c1F7dluF9KwGcVQSxmZp6mpVhPj3ww1Sh8='
+      );
+    });
+  });
+
+  describe('encrypt+decrypt', () => {
+    it('returns original input', () => {
+      const iv = crypto.randomBytes(16);
+      const key = crypto.randomBytes(32);
+      const input = Buffer.from('plaintext');
+
+      const ciphertext = encrypt(key, input, iv);
+      const plaintext = decrypt(key, ciphertext, iv);
+
+      assert.strictEqual(Buffer.from(plaintext).toString(), 'plaintext');
+    });
+  });
+});