Package net.sourceforge.jtds.util

Class DESEngine

  • public class DESEngine
extends java.lang.Object
    a class that provides a basic DES engine. Modified by Matt Brinkley (mdb) ... mainly just removed depends on external classes.
    Version:
    $Id: DESEngine.java,v 1.3.6.1 2009-08-04 10:33:54 ickzon Exp $
    Author:
    Matt Brinkley

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected static int BLOCK_SIZE  
      private javax.crypto.Cipher cf  

    • Constructor Summary

      Constructors 
      Constructor Description
      DESEngine()
      standard constructor.
      DESEngine​(boolean encrypting, byte[] key)
      mdb: convenient constructor

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String getAlgorithmName()  
      int getBlockSize()  
      void init​(boolean encrypting, byte[] key)
      initialise a DES cipher.
      int processBlock​(byte[] in, int inOff, byte[] out, int outOff)  
      void reset()  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • cf

        private javax.crypto.Cipher cf

    • Constructor Detail

      • DESEngine

        public DESEngine()
        standard constructor.

      • DESEngine

        public DESEngine​(boolean encrypting,
                 byte[] key)
        mdb: convenient constructor

    • Method Detail

      • init

        public void init​(boolean encrypting,
                 byte[] key)
        initialise a DES cipher.
        Parameters:
        encrypting - whether or not we are for encryption.
        key - the parameters required to set up the cipher.
        Throws:
        java.lang.IllegalArgumentException - if the params argument is inappropriate.

      • getAlgorithmName

        public java.lang.String getAlgorithmName()

      • getBlockSize

        public int getBlockSize()

      • processBlock

        public int processBlock​(byte[] in,
                        int inOff,
                        byte[] out,
                        int outOff)

      • reset

        public void reset()