com.fitbur.bouncycastle.crypto.test.DESTest Maven / Gradle / Ivy

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package com.fitbur.bouncycastle.crypto.test;

import com.fitbur.bouncycastle.crypto.KeyGenerationParameters;
import com.fitbur.bouncycastle.crypto.engines.DESEngine;
import com.fitbur.bouncycastle.crypto.generators.DESKeyGenerator;
import com.fitbur.bouncycastle.crypto.modes.CBCBlockCipher;
import com.fitbur.bouncycastle.crypto.modes.CFBBlockCipher;
import com.fitbur.bouncycastle.crypto.modes.OFBBlockCipher;
import com.fitbur.bouncycastle.crypto.params.DESParameters;
import com.fitbur.bouncycastle.crypto.params.KeyParameter;
import com.fitbur.bouncycastle.crypto.params.ParametersWithIV;
import com.fitbur.bouncycastle.util.encoders.Hex;
import com.fitbur.bouncycastle.util.test.SimpleTest;

import java.security.SecureRandom;

class DESParityTest
    extends SimpleTest
{
    public String getName()
    {
        return "DESParityTest";
    }

    public void performTest()
    {
        byte[]  k1In = { (byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff,
                        (byte)0xff, (byte)0xff, (byte)0xff, (byte)0xff };
        byte[]  k1Out = { (byte)0xfe, (byte)0xfe, (byte)0xfe, (byte)0xfe,
                        (byte)0xfe, (byte)0xfe, (byte)0xfe, (byte)0xfe };

        byte[]  k2In = { (byte)0xef, (byte)0xcb, (byte)0xda, (byte)0x4f,
                        (byte)0xaa, (byte)0x99, (byte)0x7f, (byte)0x63 };
        byte[]  k2Out = { (byte)0xef, (byte)0xcb, (byte)0xda, (byte)0x4f,
                        (byte)0xab, (byte)0x98, (byte)0x7f, (byte)0x62 };

        DESParameters.setOddParity(k1In);

        for (int i = 0; i != k1In.length; i++)
        {
            if (k1In[i] != k1Out[i])
            {
                fail("Failed " 
                    + "got " + new String(Hex.encode(k1In))
                    + " expected " + new String(Hex.encode(k1Out)));
            }
        }

        DESParameters.setOddParity(k2In);

        for (int i = 0; i != k2In.length; i++)
        {
            if (k2In[i] != k2Out[i])
            {
                fail("Failed " 
                    + "got " + new String(Hex.encode(k2In))
                    + " expected " + new String(Hex.encode(k2Out)));
            }
        }
    }
}

class KeyGenTest
    extends SimpleTest
{
    public String getName()
    {
        return "KeyGenTest";
    }

    public void performTest()
    {
        DESKeyGenerator keyGen = new DESKeyGenerator();
        
        keyGen.init(new KeyGenerationParameters(new SecureRandom(), 56));
        
        byte[] kB = keyGen.generateKey();
        
        if (kB.length != 8)
        {
            fail("DES bit key wrong length.");
        }
    }
}

class DESParametersTest
    extends SimpleTest
{
    static private byte[] weakKeys =
     {
         (byte)0x01,(byte)0x01,(byte)0x01,(byte)0x01, (byte)0x01,(byte)0x01,(byte)0x01,(byte)0x01,
         (byte)0x1f,(byte)0x1f,(byte)0x1f,(byte)0x1f, (byte)0x0e,(byte)0x0e,(byte)0x0e,(byte)0x0e,
         (byte)0xe0,(byte)0xe0,(byte)0xe0,(byte)0xe0, (byte)0xf1,(byte)0xf1,(byte)0xf1,(byte)0xf1,
         (byte)0xfe,(byte)0xfe,(byte)0xfe,(byte)0xfe, (byte)0xfe,(byte)0xfe,(byte)0xfe,(byte)0xfe,
         /* semi-weak keys */
         (byte)0x01,(byte)0xfe,(byte)0x01,(byte)0xfe, (byte)0x01,(byte)0xfe,(byte)0x01,(byte)0xfe,
         (byte)0x1f,(byte)0xe0,(byte)0x1f,(byte)0xe0, (byte)0x0e,(byte)0xf1,(byte)0x0e,(byte)0xf1,
         (byte)0x01,(byte)0xe0,(byte)0x01,(byte)0xe0, (byte)0x01,(byte)0xf1,(byte)0x01,(byte)0xf1,
         (byte)0x1f,(byte)0xfe,(byte)0x1f,(byte)0xfe, (byte)0x0e,(byte)0xfe,(byte)0x0e,(byte)0xfe,
         (byte)0x01,(byte)0x1f,(byte)0x01,(byte)0x1f, (byte)0x01,(byte)0x0e,(byte)0x01,(byte)0x0e,
         (byte)0xe0,(byte)0xfe,(byte)0xe0,(byte)0xfe, (byte)0xf1,(byte)0xfe,(byte)0xf1,(byte)0xfe,
         (byte)0xfe,(byte)0x01,(byte)0xfe,(byte)0x01, (byte)0xfe,(byte)0x01,(byte)0xfe,(byte)0x01,
         (byte)0xe0,(byte)0x1f,(byte)0xe0,(byte)0x1f, (byte)0xf1,(byte)0x0e,(byte)0xf1,(byte)0x0e,
         (byte)0xe0,(byte)0x01,(byte)0xe0,(byte)0x01, (byte)0xf1,(byte)0x01,(byte)0xf1,(byte)0x01,
         (byte)0xfe,(byte)0x1f,(byte)0xfe,(byte)0x1f, (byte)0xfe,(byte)0x0e,(byte)0xfe,(byte)0x0e,
         (byte)0x1f,(byte)0x01,(byte)0x1f,(byte)0x01, (byte)0x0e,(byte)0x01,(byte)0x0e,(byte)0x01,
         (byte)0xfe,(byte)0xe0,(byte)0xfe,(byte)0xe0, (byte)0xfe,(byte)0xf1,(byte)0xfe,(byte)0xf1
     };

    public String getName()
    {
        return "DESParameters";
    }

    public void performTest() throws Exception
    {
        try
        {
            DESParameters.isWeakKey(new byte[4], 0);
            fail("no exception on small key");
        }
        catch (IllegalArgumentException e)
        {
            if (!e.getMessage().equals("key material too short."))
            {
                fail("wrong exception");
            }
        }

        try
        {
            new DESParameters(weakKeys);
            fail("no exception on weak key");
        }
        catch (IllegalArgumentException e)
        {
            if (!e.getMessage().equals("attempt to create weak DES key"))
            {
                fail("wrong exception");
            }
        }

        for (int i = 0; i != weakKeys.length; i += 8)
        {
            if (!DESParameters.isWeakKey(weakKeys, i))
            {
                fail("weakKey test failed");
            }
        }
    }
}

/**
 * DES tester - vectors from FIPS 81
 */
public class DESTest
    extends CipherTest
{
    static String   input1 = "4e6f77206973207468652074696d6520666f7220616c6c20";
    static String   input2 = "4e6f7720697320746865";
    static String   input3 = "4e6f7720697320746865aabbcc";

    static SimpleTest[]   tests = 
            {
                new BlockCipherVectorTest(0, new DESEngine(),
                        new KeyParameter(Hex.com.fitburcode("0123456789abcdef")),
                        input1, "3fa40e8a984d48156a271787ab8883f9893d51ec4b563b53"),
                new BlockCipherVectorTest(1, new CBCBlockCipher(new DESEngine()),
                        new ParametersWithIV(new KeyParameter(Hex.com.fitburcode("0123456789abcdef")), Hex.com.fitburcode("1234567890abcdef")),
                        input1, "e5c7cdde872bf27c43e934008c389c0f683788499a7c05f6"),
                new BlockCipherVectorTest(2, new CFBBlockCipher(new DESEngine(), 8),
                        new ParametersWithIV(new KeyParameter(Hex.com.fitburcode("0123456789abcdef")), Hex.com.fitburcode("1234567890abcdef")),
                        input2, "f31fda07011462ee187f"),
                new BlockCipherVectorTest(3, new CFBBlockCipher(new DESEngine(), 64),
                        new ParametersWithIV(new KeyParameter(Hex.com.fitburcode("0123456789abcdef")), Hex.com.fitburcode("1234567890abcdef")),
                        input1, "f3096249c7f46e51a69e839b1a92f78403467133898ea622"),
                new BlockCipherVectorTest(4, new OFBBlockCipher(new DESEngine(), 8),
                        new ParametersWithIV(new KeyParameter(Hex.com.fitburcode("0123456789abcdef")), Hex.com.fitburcode("1234567890abcdef")),
                        input2, "f34a2850c9c64985d684"),
                new BlockCipherVectorTest(5, new CFBBlockCipher(new DESEngine(), 64),
                        new ParametersWithIV(new KeyParameter(Hex.com.fitburcode("0123456789abcdef")), Hex.com.fitburcode("1234567890abcdef")),
                        input3, "f3096249c7f46e51a69e0954bf"),
                new BlockCipherVectorTest(6, new OFBBlockCipher(new DESEngine(), 64),
                        new ParametersWithIV(new KeyParameter(Hex.com.fitburcode("0123456789abcdef")), Hex.com.fitburcode("1234567890abcdef")),
                        input3, "f3096249c7f46e5135f2c0eb8b"),
                new DESParityTest(),
                new DESParametersTest(),
                new KeyGenTest()
            };

    public DESTest()
    {
        super(tests, new DESEngine(), new KeyParameter(new byte[8]));
    }

    public String getName()
    {
        return "DES";
    }

    public static void main(
        String[]    args)
    {
        runTest(new DESTest());
    }
}