Question

我正在使用：encrypt: ^3.2.0 我在扑朔迷离中使用AES加密，但是当我解密自己的加密值时，就会遇到这种错误。

flutter：错误：类型'String'不是'encrypted'的'Encrypted'类型的子类型

Future<String> getEncryption(String text) async {
    String enc = '';

    final SharedPreferences strFamilyPass =
        await SharedPreferences.getInstance();
    strFamilyPass.getString('family');

    final String keys = await getKEY();
    final dynamic key = Key.fromUtf8(keys);
    final dynamic iv = IV.fromLength(16);
    final dynamic encrypter = Encrypter(AES(key));
    final String salt = await getSalt();
    enc = '$salt${encrypter.encrypt(text, iv: iv).base64}';
    print('encryption $enc');
    return enc;
  }

  Future<String> getDecryption(String text) async {
    String dec = '';
    final String keys = await getKEY();
    final dynamic key = Key.fromUtf8(keys);
    final dynamic iv = IV.fromLength(16);
    final encrypter = Encrypter(AES(key));
    final String salt = await getSalt();

    dec = '$salt${encrypter.decrypt(text, iv: iv)}';// it give's me error right here
    print('decy $dec');
    return dec;
  }

Answer 1

documentation全部说明：

String decrypt(Encrypted encrypted, {IV iv})

您将String传递给Encrypted，并且Encrypted不是String的子类型。

Answer 2

var source = 'flutter app';
final decrypted = encrypter.decrypt64(source, iv: iv);

颤抖：错误：类型'String'不是'encrypted'的'Encrypted'类型的子类型

2 个答案: