/*
 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
 * Please refer to the LICENSE.txt for licensing details.
 */
package ch.ethz.ssh2.crypto.cipher;

/**
 * NullCipher.
 *
 * @author Christian Plattner
 * @version 2.50, 03/15/10
 */
public class NullCipher implements BlockCipher {
    private int blockSize = 8;

    public NullCipher() {
    }

    public NullCipher(int blockSize) {
        this.blockSize = blockSize;
    }

    public void init(boolean forEncryption, byte[] key) {
    }

    public int getBlockSize() {
        return blockSize;
    }

    public void transformBlock(byte[] src, int srcoff, byte[] dst, int dstoff) {
        System.arraycopy(src, srcoff, dst, dstoff, blockSize);
    }
}