aesDecrypt function

Uint8List aesDecrypt(dynamic cipherText, dynamic key)

Implementation

Uint8List aesDecrypt(cipherText, key) {
  if (!(cipherText is Uint8List) && !(cipherText is String)) {
    throw "'cipherText' must be a string or Uint8List";
  }

  if (!(key is Uint8List) && !(key is String)) {
    throw "'key' must be a string or Uint8List";
  }

  if (cipherText is String) {
    if (isHex(cipherText)) {
      cipherText = hexToUint8List(cipherText);
    } else {
      throw "'cipherText' must be an hexadecimal string";
    }
  }

  if (key is String) {
    if (isHex(key)) {
      key = hexToUint8List(key);
    } else {
      throw "'key' must be an hexadecimal string";
    }
  }

  // TODO
  /*
  Uint8List iv = cipherText.sublist(0, 12);
  Uint8List tag = cipherText.sublist(12, 12 + 16);
  Uint8List encrypted = cipherText.sublist(28, cipherText.length);

  final gcm = GCMBlockCipher(AESFastEngine())
    ..init(false, AEADParameters(KeyParameter(key), 8 * 16, iv, tag));

  final paddedPlainText = Uint8List(encrypted.length);

  var offset = 0;
  while (offset < encrypted.length) {
    offset += gcm.processBlock(encrypted, offset, paddedPlainText, offset);
  }
  */
  return Uint8List(0);
}