encryption - flutter :错误:类型 'String'不是 'Encrypted'的类型 'encrypted'的子类型

Question

我正在使用:encrypt: ^3.2.0我在 flutter 中使用 AES 加密，但是当我解密我的加密值时，它会给我这种类型的错误。

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

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