decrypt method
Decrypt (with iv) and return original String.
If you are using ISAAC, pass a blank String as iv
.
encrypted
and iv
should be encoded using base64. Encrypted should have
been generated using the parameters specified in encrypt.
Implementation
String decrypt({required String enc, required String iv}) {
var machine = StreamCipher(_stringType);
var localKey = base64Decode(key);
var localInput = base64.decode(enc);
var ivList = base64Decode(iv);
var params = ParametersWithIV(
KeyParameter(Uint8List.fromList(localKey.sublist(0, 32))), ivList);
machine.init(false, params);
var inter = machine.process(localInput);
return utf8.decode(inter);
}