1 files changed, 0 insertions, 140 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/engines/VMPCEngine.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/engines/VMPCEngine.java
deleted file mode 100644
index b4a3f23c3..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/engines/VMPCEngine.java
+++ /dev/null
@@ -1,140 +0,0 @@
-package org.spongycastle.crypto.engines;
-
-import org.spongycastle.crypto.CipherParameters;
-import org.spongycastle.crypto.DataLengthException;
-import org.spongycastle.crypto.OutputLengthException;
-import org.spongycastle.crypto.StreamCipher;
-import org.spongycastle.crypto.params.KeyParameter;
-import org.spongycastle.crypto.params.ParametersWithIV;
-
-public class VMPCEngine implements StreamCipher
-{
-    /*
-     * variables to hold the state of the VMPC engine during encryption and
-     * decryption
-     */
-    protected byte n = 0;
-    protected byte[] P = null;
-    protected byte s = 0;
-
-    protected byte[] workingIV;
-    protected byte[] workingKey;
-
-    public String getAlgorithmName()
-    {
-        return "VMPC";
-    }
-
-    /**
-     * initialise a VMPC cipher.
-     * 
-     * @param forEncryption
-     *    whether or not we are for encryption.
-     * @param params
-     *    the parameters required to set up the cipher.
-     * @exception IllegalArgumentException
-     *    if the params argument is inappropriate.
-     */
-    public void init(boolean forEncryption, CipherParameters params)
-    {
-        if (!(params instanceof ParametersWithIV))
-        {
-            throw new IllegalArgumentException(
-                "VMPC init parameters must include an IV");
-        }
-
-        ParametersWithIV ivParams = (ParametersWithIV) params;
-
-        if (!(ivParams.getParameters() instanceof KeyParameter))
-        {
-            throw new IllegalArgumentException(
-                "VMPC init parameters must include a key");
-        }
-
-        KeyParameter key = (KeyParameter) ivParams.getParameters();
-
-        this.workingIV = ivParams.getIV();
-
-        if (workingIV == null || workingIV.length < 1 || workingIV.length > 768)
-        {
-            throw new IllegalArgumentException("VMPC requires 1 to 768 bytes of IV");
-        }
-
-        this.workingKey = key.getKey();
-
-        initKey(this.workingKey, this.workingIV);
-    }
-
-    protected void initKey(byte[] keyBytes, byte[] ivBytes)
-    {
-        s = 0;
-        P = new byte[256];
-        for (int i = 0; i < 256; i++)
-        {
-            P[i] = (byte) i;
-        }
-
-        for (int m = 0; m < 768; m++)
-        {
-            s = P[(s + P[m & 0xff] + keyBytes[m % keyBytes.length]) & 0xff];
-            byte temp = P[m & 0xff];
-            P[m & 0xff] = P[s & 0xff];
-            P[s & 0xff] = temp;
-        }
-        for (int m = 0; m < 768; m++)
-        {
-            s = P[(s + P[m & 0xff] + ivBytes[m % ivBytes.length]) & 0xff];
-            byte temp = P[m & 0xff];
-            P[m & 0xff] = P[s & 0xff];
-            P[s & 0xff] = temp;
-        }
-        n = 0;
-    }
-
-    public void processBytes(byte[] in, int inOff, int len, byte[] out,
-        int outOff)
-    {
-        if ((inOff + len) > in.length)
-        {
-            throw new DataLengthException("input buffer too short");
-        }
-
-        if ((outOff + len) > out.length)
-        {
-            throw new OutputLengthException("output buffer too short");
-        }
-
-        for (int i = 0; i < len; i++)
-        {
-            s = P[(s + P[n & 0xff]) & 0xff];
-            byte z = P[(P[(P[s & 0xff]) & 0xff] + 1) & 0xff];
-            // encryption
-            byte temp = P[n & 0xff];
-            P[n & 0xff] = P[s & 0xff];
-            P[s & 0xff] = temp;
-            n = (byte) ((n + 1) & 0xff);
-
-            // xor
-            out[i + outOff] = (byte) (in[i + inOff] ^ z);
-        }
-    }
-
-    public void reset()
-    {
-        initKey(this.workingKey, this.workingIV);
-    }
-
-    public byte returnByte(byte in)
-    {
-        s = P[(s + P[n & 0xff]) & 0xff];
-        byte z = P[(P[(P[s & 0xff]) & 0xff] + 1) & 0xff];
-        // encryption
-        byte temp = P[n & 0xff];
-        P[n & 0xff] = P[s & 0xff];
-        P[s & 0xff] = temp;
-        n = (byte) ((n + 1) & 0xff);
-
-        // xor
-        return (byte) (in ^ z);
-    }
-}