examples/jose-jwe-example2.html

<html>
<body>
<p>plain text: <span id="plaintext">hello world, &#x26C4;</span></p>
<p>cipher text: <pre style="word-wrap: break-word" id="ciphertext"></pre></p>
<p>error: <span id="error" style="color: red"></span></p>
<script src="../dist/jose.js"></script>

<script>
var cryptographer = new Jose.WebCryptographer();
cryptographer.setKeyEncryptionAlgorithm("A128KW");
cryptographer.setContentEncryptionAlgorithm("A128CBC-HS256");

var shared_key = {"kty":"oct", "k":"GawgguFyGrWKav7AX4VKUg"};
shared_key = crypto.subtle.importKey("jwk", shared_key, {name: "AES-KW"}, true, ["wrapKey", "unwrapKey"]);

var encrypter = new JoseJWE.Encrypter(cryptographer, shared_key);
encrypter.encrypt(plaintext.textContent).then(function(result) {
	ciphertext.textContent = result;

  var decrypter = new JoseJWE.Decrypter(cryptographer, shared_key);
  decrypter.decrypt(result)
    .then(function(decrypted_plain_text) {
      if (decrypted_plain_text != plaintext.textContent) {
        error.textContent = "decryption failed!";
      }
    }).catch(function(err) {
      error.textContent = err;
    });
}).catch(function(err) {
	error.textContent = err;
});
</script>
</body>
</html>