--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/src/main/java/ch/ethz/ssh2/crypto/cipher/NullCipher.java	Thu Dec 03 11:23:55 2015 -0800
@@ -0,0 +1,33 @@
+/*
+ * 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);
+    }
+}