crypto: fix aes crash when tag length too small

Fixes: https://github.com/nodejs/node/issues/38883

PR-URL: https://github.com/nodejs/node/pull/38914
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/test/parallel/test-crypto-webcrypto-aes-decrypt-tag-too-small.js b/test/parallel/test-crypto-webcrypto-aes-decrypt-tag-too-small.js
new file mode 100644
index 00000000000..b9f9c74b262
--- /dev/null
+++ b/test/parallel/test-crypto-webcrypto-aes-decrypt-tag-too-small.js
@@ -0,0 +1,29 @@
+'use strict';
+
+const common = require('../common');
+
+if (!common.hasCrypto)
+  common.skip('missing crypto');
+
+const assert = require('assert');
+const crypto = require('crypto').webcrypto;
+
+crypto.subtle.importKey(
+  'raw',
+  new Uint8Array(32),
+  {
+    name: 'AES-GCM'
+  },
+  false,
+  [ 'encrypt', 'decrypt' ])
+  .then((k) => {
+    assert.rejects(() => {
+      return crypto.subtle.decrypt({
+        name: 'AES-GCM',
+        iv: new Uint8Array(12),
+      }, k, new Uint8Array(0));
+    }, {
+      name: 'OperationError',
+      message: /The provided data is too small/,
+    });
+  });