1 /* 2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved. 3 * Please refer to the LICENSE.txt for licensing details. 4 */ 5 package ch.ethz.ssh2.crypto.cipher; 6 7 /** 8 * NullCipher. 9 * 10 * @author Christian Plattner 11 * @version 2.50, 03/15/10 12 */ 13 public class NullCipher implements BlockCipher 14 { 15 private int blockSize = 8; 16 NullCipher()17 public NullCipher() 18 { 19 } 20 NullCipher(int blockSize)21 public NullCipher(int blockSize) 22 { 23 this.blockSize = blockSize; 24 } 25 init(boolean forEncryption, byte[] key)26 public void init(boolean forEncryption, byte[] key) 27 { 28 } 29 getBlockSize()30 public int getBlockSize() 31 { 32 return blockSize; 33 } 34 transformBlock(byte[] src, int srcoff, byte[] dst, int dstoff)35 public void transformBlock(byte[] src, int srcoff, byte[] dst, int dstoff) 36 { 37 System.arraycopy(src, srcoff, dst, dstoff, blockSize); 38 } 39 } 40