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  1. import java.nio.ByteBuffer;
  2. import javax.crypto.Cipher;
  3. import javax.crypto.spec.SecretKeySpec;
  4.  
  5. class Test {  
  6.     public static void main(String[] args) {  
  7.  
  8.         try {
  9.  
  10.             byte[] bs = {
  11.             (byte)0x03, (byte)0x01, (byte)0x00, (byte)0x00, 
  12.             (byte)0x02, (byte)0x00, (byte)0x00, (byte)0x00
  13.             };
  14.             ByteBuffer buff = ByteBuffer.wrap(bs);
  15.             Cipher instance = Cipher.getInstance("RC4");
  16.             instance.init(Cipher.DECRYPT_MODE, new SecretKeySpec(("c2eWxyNe5c4G9GUHMQECzcUEWUK8MWkk" + "48LoIDEv8EQOrmwPirikDa3iUaickMSq").getBytes(), "RC4"));
  17.             instance.update(buff.array(), 0, 8, buff.array(), 0);
  18.             byte[] array = buff.array();
  19.             for (int j=0; j<array.length; j++) {
  20.                 System.out.format("%02X ", array[j]);
  21.             }
  22.             System.out.println();
  23. 			//CA 66 C4 5D 90 E7 30 01
  24.             byte[] bs1 = {
  25.             (byte)0xca, (byte)0x66, (byte)0xc4, (byte)0x5d, 
  26.             (byte)0x90, (byte)0xe7, (byte)0x30, (byte)0x01
  27.             };
  28.             ByteBuffer buff1 = ByteBuffer.wrap(bs1);
  29.             Cipher instance1 = Cipher.getInstance("RC4");
  30.             instance1.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(("c2eWxyNe5c4G9GUHMQECzcUEWUK8MWkk" + "48LoIDEv8EQOrmwPirikDa3iUaickMSq").getBytes(), "RC4"));
  31.             instance1.update(buff.array(), 0, 8, buff.array(), 0);
  32.             byte[] array1 = buff.array();
  33.             for (int j=0; j<array1.length; j++) {
  34.                 System.out.format("%02X ", array1[j]);
  35.             }
  36.             System.out.println();
  37.             //03 01 00 00 02 00 00 00
  38.         }catch (Throwable th) {
  39.             System.out.println(th);
  40.             System.exit(0);
  41.         }
  42.     }
  43.  
  44.  
  45. }
Success #stdin #stdout 0.08s 2316288KB
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Standard input is empty
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java.security.NoSuchAlgorithmException: Cannot find any provider supporting RC4
https://ideone.com/V5Nzos
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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