GitLocker: The Coding Marketplace

Description:

dart des

dart_des #
This algorithm is a pure dart implementation of the DES and Triple DES algorithms
(port of pyDES).
Triple DES is either DES-EDE3 with a 24 byte key, or DES-EDE2 with a 16 byte key.
Example #
import 'dart:convert';

import 'package:convert/convert.dart';
import 'package:dart_des/dart_des.dart';

main() {
String key = '12345678'; // 8-byte
String message = 'Driving in from the edge of town';
List<int> encrypted;
List<int> decrypted;
List<int> iv = [1, 2, 3, 4, 5, 6, 7, 8];

print('key: $key');
print('message: $message');

DES desECB = DES(key: key.codeUnits, mode: DESMode.ECB);
encrypted = desECB.encrypt(message.codeUnits);
decrypted = desECB.decrypt(encrypted);
print('DES mode: ECB');
print('encrypted: $encrypted');
print('encrypted (hex): ${hex.encode(encrypted)}');
print('encrypted (base64): ${base64.encode(encrypted)}');
print('decrypted: $decrypted');
print('decrypted (hex): ${hex.encode(decrypted)}');
print('decrypted (utf8): ${utf8.decode(decrypted)}');

key = '123456781234567812345678'; // 24-byte
DES3 des3CBC = DES3(key: key.codeUnits, mode: DESMode.CBC, iv: iv);
encrypted = des3CBC.encrypt(message.codeUnits);
decrypted = des3CBC.decrypt(encrypted);
print('Triple DES mode: CBC');
print('encrypted: $encrypted');
print('encrypted (hex): ${hex.encode(encrypted)}');
print('encrypted (base64): ${base64.encode(encrypted)}');
print('decrypted: $decrypted');
print('decrypted (hex): ${hex.encode(decrypted)}');
print('decrypted (utf8): ${utf8.decode(decrypted)}');
}
copied to clipboard