Package org.bouncycastle.crypto.macs

Examples of org.bouncycastle.crypto.macs.HMac

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        dIn.readFully(salt);

        int         iterationCount = dIn.readInt();

        HMac                    hMac = new HMac(new SHA1Digest());
        MacInputStream          mIn = new MacInputStream(dIn, hMac);
        PBEParametersGenerator  pbeGen = new PKCS12ParametersGenerator(new SHA1Digest());
        byte[]                  passKey = PBEParametersGenerator.PKCS12PasswordToBytes(password);

        pbeGen.init(passKey, salt, iterationCount);

        hMac.init(pbeGen.generateDerivedMacParameters(hMac.getMacSize()));

        for (int i = 0; i != passKey.length; i++)
        {
            passKey[i] = 0;
        }

        loadStore(mIn);

        byte[]  mac = new byte[hMac.getMacSize()];
        byte[]  oldMac = new byte[hMac.getMacSize()];

        hMac.doFinal(mac, 0);

        for (int i = 0; i != oldMac.length; i++)
        {
            oldMac[i] = (byte)dIn.read();
        }
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        dOut.writeInt(STORE_VERSION);
        dOut.writeInt(salt.length);
        dOut.write(salt);
        dOut.writeInt(iterationCount);

        HMac                    hMac = new HMac(new SHA1Digest());
        MacOutputStream         mOut = new MacOutputStream(dOut, hMac);
        PBEParametersGenerator  pbeGen = new PKCS12ParametersGenerator(new SHA1Digest());
        byte[]                  passKey = PBEParametersGenerator.PKCS12PasswordToBytes(password);

        pbeGen.init(passKey, salt, iterationCount);

        hMac.init(pbeGen.generateDerivedMacParameters(hMac.getMacSize()));

        for (int i = 0; i != passKey.length; i++)
        {
            passKey[i] = 0;
        }

        saveStore(mOut);

        byte[]  mac = new byte[hMac.getMacSize()];

        hMac.doFinal(mac, 0);

        dOut.write(mac);

        dOut.close();
    }
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public class Hmac {

    private final HMac hmac;

    public Hmac(Digest digest, ByteBuf key) throws InvalidKeyException {
        this.hmac = new HMac( digest );
        computeKey(key);
    }
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        return "SHA1HMac";
    }

    public TestResult perform()
    {
        HMac hmac = new HMac(new SHA1Digest());
        byte[] resBuf = new byte[hmac.getMacSize()];

        for (int i = 0; i < messages.length; i++)
        {
            byte[] m = messages[i].getBytes();
            if (messages[i].startsWith("0x"))
            {
                m = Hex.decode(messages[i].substring(2));
            }
            hmac.init(new KeyParameter(Hex.decode(keys[i])));
            hmac.update(m, 0, m.length);
            hmac.doFinal(resBuf, 0);

            if (!arraysEqual(resBuf, Hex.decode(digests[i])))
            {
                return new SimpleTestResult(false, getName() + ": Vector " + i + " failed");
            }
        }

        //
        // test reset
        //
        int vector = 0; // vector used for test
        byte[] m = messages[vector].getBytes();
        if (messages[vector].startsWith("0x"))
        {
            m = Hex.decode(messages[vector].substring(2));
        }
        hmac.init(new KeyParameter(Hex.decode(keys[vector])));
        hmac.update(m, 0, m.length);
        hmac.doFinal(resBuf, 0);
        hmac.reset();
        hmac.update(m, 0, m.length);
        hmac.doFinal(resBuf, 0);

        if (!arraysEqual(resBuf, Hex.decode(digests[vector])))
        {
            return new SimpleTestResult(false, getName() +
                    "Reset with vector " + vector + " failed");
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        return "MD5HMac";
    }

    public TestResult perform()
    {
        HMac hmac = new HMac(new MD5Digest());
        byte[] resBuf = new byte[hmac.getMacSize()];

        for (int i = 0; i < messages.length; i++)
        {
            byte[] m = messages[i].getBytes();
            if (messages[i].startsWith("0x"))
            {
                m = Hex.decode(messages[i].substring(2));
            }
            hmac.init(new KeyParameter(Hex.decode(keys[i])));
            hmac.update(m, 0, m.length);
            hmac.doFinal(resBuf, 0);

            if (!arraysEqual(resBuf, Hex.decode(digests[i])))
            {
                return new SimpleTestResult(false, getName() + "Vector " + i + " failed");
            }
        }

        // test reset
        int vector = 0; // vector used for test
        byte[] m = messages[vector].getBytes();
        if (messages[vector].startsWith("0x"))
        {
            m = Hex.decode(messages[vector].substring(2));
        }
        hmac.init(new KeyParameter(Hex.decode(keys[vector])));
        hmac.update(m, 0, m.length);
        hmac.doFinal(resBuf, 0);
        hmac.reset();
        hmac.update(m, 0, m.length);
        hmac.doFinal(resBuf, 0);

        if (!arraysEqual(resBuf, Hex.decode(digests[vector])))
        {
            return new SimpleTestResult(false, getName() +
                    "Reset with vector " + vector + " failed");
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        return "RIPEMD128HMac";
    }

    public TestResult perform()
    {
        HMac hmac = new HMac(new RIPEMD128Digest());
        byte[] resBuf = new byte[hmac.getMacSize()];

        for (int i = 0; i < messages.length; i++)
        {
            byte[] m = messages[i].getBytes();
            if (messages[i].startsWith("0x"))
            {
                m = Hex.decode(messages[i].substring(2));
            }
            hmac.init(new KeyParameter(Hex.decode(keys[i])));
            hmac.update(m, 0, m.length);
            hmac.doFinal(resBuf, 0);

            if (!arraysEqual(resBuf, Hex.decode(digests[i])))
            {
                return new SimpleTestResult(false, getName() + ": Vector " + i + " failed");
            }
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        // stream test
        //
        IESEngine      i1 = new IESEngine(
                                   new ECDHBasicAgreement(),
                                   new KDF2BytesGenerator(new SHA1Digest()),
                                   new HMac(new SHA1Digest()));
        IESEngine      i2 = new IESEngine(
                                   new ECDHBasicAgreement(),
                                   new KDF2BytesGenerator(new SHA1Digest()),
                                   new HMac(new SHA1Digest()));
        byte[]         d = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
        byte[]         e = new byte[] { 8, 7, 6, 5, 4, 3, 2, 1 };
        IESParameters  p = new IESParameters(d, e, 64);

        i1.init(true, p1.getPrivate(), p2.getPublic(), p);
        i2.init(false, p2.getPrivate(), p1.getPublic(), p);

        byte[] message = Hex.decode("1234567890abcdef");

        try
        {
            byte[]   out1 = i1.processBlock(message, 0, message.length);

            byte[]   out2 = i2.processBlock(out1, 0, out1.length);

            if (!sameAs(out2, message))
            {
                return new SimpleTestResult(false, this.getName() + ": stream cipher test failed");
            }
     
        }
        catch (Exception ex)
        {
            return new SimpleTestResult(false, this.getName() + ": stream cipher test exception " + ex.toString());
        }

        //
        // twofish with IV0 test
        //
        BufferedBlockCipher c1 = new PaddedBufferedBlockCipher(
                                    new CBCBlockCipher(new TwofishEngine()));
        BufferedBlockCipher c2 = new PaddedBufferedBlockCipher(
                                    new CBCBlockCipher(new TwofishEngine()));
        i1 = new IESEngine(
                       new ECDHBasicAgreement(),
                       new KDF2BytesGenerator(new SHA1Digest()),
                       new HMac(new SHA1Digest()),
                       c1);
        i2 = new IESEngine(
                       new ECDHBasicAgreement(),
                       new KDF2BytesGenerator(new SHA1Digest()),
                       new HMac(new SHA1Digest()),
                       c2);
        d = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
        e = new byte[] { 8, 7, 6, 5, 4, 3, 2, 1 };
        p = new IESWithCipherParameters(d, e, 64, 128);
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        return "RIPEMD160HMac";
    }

    public TestResult perform()
    {
        HMac hmac = new HMac(new RIPEMD160Digest());
        byte[] resBuf = new byte[hmac.getMacSize()];

        for (int i = 0; i < messages.length; i++)
        {
            byte[] m = messages[i].getBytes();
            if (messages[i].startsWith("0x"))
            {
                m = Hex.decode(messages[i].substring(2));
            }
            hmac.init(new KeyParameter(Hex.decode(keys[i])));
            hmac.update(m, 0, m.length);
            hmac.doFinal(resBuf, 0);

            if (!arraysEqual(resBuf, Hex.decode(digests[i])))
            {
                return new SimpleTestResult(false, getName() + ": Vector " + i + " failed");
            }
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      byte[] tmp=new byte[bsize];
      System.arraycopy(key, 0, tmp, 0, bsize);   
      key=tmp;
    }
    CipherParameters param=new KeyParameter(key);
    mac=new HMac(new MD5Digest());
    mac.init(param);
  }
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      byte[] tmp=new byte[20];
      System.arraycopy(key, 0, tmp, 0, 20);   
      key=tmp;
    }
    CipherParameters param=new KeyParameter(key);
    mac=new HMac(new SHA1Digest());
    mac.init(param);
  }
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