flutter: error: type 'String' is not a subtype of type 'Encrypted' of 'encrypted'

Question

I'm using : encrypt: ^3.2.0 I'm using AES encryption in flutter but when i decrypt my encrypted value it's give me this type of Error.

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;
  }

Tokenyet Tokenyet · Accepted Answer · 2019-09-11T06:06:56

The documentation said It all:

String decrypt(Encrypted encrypted, {IV iv})

You passed a String to Encrypted, and Encrypted is not a subtype of String.

flutter: error: type 'String' is not a subtype of type 'Encrypted' of 'encrypted'

2 Answers