Dart

Duplicate Java AES Results

See more Encryption Examples

Demonstrates how to duplicate Java code for AES encryption. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final crypt = CkCrypt2();

  crypt.cryptAlgorithm = 'aes';
  crypt.cipherMode = 'cbc';
  crypt.keyLength = 256;

  crypt.setEncodedIV('000102030405060708090A0B0C0D0E0F', 'hex');
  crypt.setEncodedKey('uX1AytOx2bqKn1G1NiblFM3YrEMnvciC', 'ascii');

  crypt.encodingMode = 'hex';

  final encrypted = crypt.encryptStringENC('tmpString');
  print(encrypted);

  print(crypt.decryptStringENC(encrypted));

  // The above Chilkat code duplicates the following Java code:

  // import javax.crypto.Cipher;
  // import javax.crypto.spec.IvParameterSpec;
  // import javax.crypto.spec.SecretKeySpec;
  // 
  // public class Test {
  // 	private static final String KEY = "uX1AytOx2bqKn1G1NiblFM3YrEMnvciC";
  // 	private static final String IV = "000102030405060708090A0B0C0D0E0F";
  // 
  // 	private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
  // 	public static String bytesToHex(byte[] bytes) {
  // 	    char[] hexChars = new char[bytes.length * 2];
  // 	    for (int j = 0; j < bytes.length; j++) {
  // 	        int v = bytes[j] & 0xFF;
  // 	        hexChars[j * 2] = HEX_ARRAY[v >>> 4];
  // 	        hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F];
  // 	    }
  // 	    return new String(hexChars);
  // 	}
  // 	public static byte[] hexToBytes(String s) {
  // 	    int len = s.length();
  // 	    byte[] data = new byte[len / 2];
  // 	    for (int i = 0; i < len; i += 2) {
  // 	        data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
  // 	                             + Character.digit(s.charAt(i+1), 16));
  // 	    }
  // 	    return data;
  // 	}
  // 	public static byte[] encrypt(String value) {
  // 		try {
  // 			System.out.println("---- encrypt ----");
  // 			IvParameterSpec iv = new IvParameterSpec(hexToBytes(IV));
  // 			SecretKeySpec skeySpec = new SecretKeySpec(KEY.getBytes("ASCII"), "AES");
  // 			Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
  // 			cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
  // 			byte[] encrypted = cipher.doFinal(value.getBytes("ASCII"));
  // 			String x = bytesToHex(encrypted);
  // 			System.out.println(x);
  // 			return encrypted;
  // 		} catch (Exception ex) {
  // 			ex.printStackTrace();
  // 			return null;
  // 		}
  // 	}
  // 
  // 	public static String decrypt(byte[] encrypted) {
  // 		try {
  // 			System.out.println("---- decrypt ----");
  // 			IvParameterSpec iv = new IvParameterSpec(hexToBytes(IV));
  // 			SecretKeySpec skeySpec = new SecretKeySpec(KEY.getBytes("ASCII"), "AES");
  // 			Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
  // 			cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
  // 			byte[] original = cipher.doFinal(encrypted);
  // 			String x = new String(original);
  // 			System.out.println(x);
  // 			return x;
  // 		} catch (Exception ex) {
  // 			ex.printStackTrace();
  // 			return null;
  // 		}
  // 
  // 	}
  // 
  // 	public static void main(String[] args) {
  // 		byte[] encrypted = encrypt("tmpString");
  // 		decrypt(encrypted);
  // 	}
  // }
  // 
}