ectest.java

J2ME加密算法的代码!里面包括常用的算法

    {
        BigInteger r = new BigInteger("21596333210419611985018340039034612628818151486841789642455876922391552");
        BigInteger s = new BigInteger("197030374000731686738334997654997227052849804072198819102649413465737174");
    
        byte[] kData = BigIntegers.asUnsignedByteArray(new BigInteger("171278725565216523967285789236956265265265235675811949404040041670216363"));
        
        SecureRandom    k = new FixedSecureRandom(kData);

        ECCurve.F2m curve = new ECCurve.F2m(
            239, // m
            36, //k
            new BigInteger("32010857077C5431123A46B808906756F543423E8D27877578125778AC76", 16), // a
            new BigInteger("790408F2EEDAF392B012EDEFB3392F30F4327C0CA3F31FC383C422AA8C16", 16)); // b
    
        ECDomainParameters params = new ECDomainParameters(
            curve,
            curve.decodePoint(Hex.decode("0457927098FA932E7C0A96D3FD5B706EF7E5F5C156E16B7E7C86038552E91D61D8EE5077C33FECF6F1A16B268DE469C3C7744EA9A971649FC7A9616305")), // G
            new BigInteger("220855883097298041197912187592864814557886993776713230936715041207411783"), // n
            BigInteger.valueOf(4)); // h
    
        ECPrivateKeyParameters priKey = new ECPrivateKeyParameters(
            new BigInteger("145642755521911534651321230007534120304391871461646461466464667494947990"), // d
            params);
    
        ECDSASigner ecdsa = new ECDSASigner();
        ParametersWithRandom param = new ParametersWithRandom(priKey, k);
    
        ecdsa.init(true, param);
    
        byte[] message = new BigInteger("968236873715988614170569073515315707566766479517").toByteArray();
        BigInteger[] sig = ecdsa.generateSignature(message);
    
        if (!r.equals(sig[0]))
        {
            fail("r component wrong." + System.getProperty("line.separator")
                + " expecting: " + r + System.getProperty("line.separator")
                + " got      : " + sig[0]);
        }
    
        if (!s.equals(sig[1]))
        {
            fail("s component wrong." + System.getProperty("line.separator")
                + " expecting: " + s + System.getProperty("line.separator")
                + " got      : " + sig[1]);
        }
    
        // Verify the signature
        ECPublicKeyParameters pubKey = new ECPublicKeyParameters(
            curve.decodePoint(Hex.decode("045894609CCECF9A92533F630DE713A958E96C97CCB8F5ABB5A688A238DEED6DC2D9D0C94EBFB7D526BA6A61764175B99CB6011E2047F9F067293F57F5")), // Q
            params);

        ecdsa.init(false, pubKey);
        if (!ecdsa.verifySignature(message, sig[0], sig[1]))
        {
            fail("signature fails");
        }
    }

    /**
     * General test for long digest.
     */
    private void testECDSA239bitBinaryAndLargeDigest()
    {
        BigInteger r = new BigInteger("21596333210419611985018340039034612628818151486841789642455876922391552");
        BigInteger s = new BigInteger("87626799441093658509023277770579403014298417038607966989658087651831660");
    
        byte[] kData = BigIntegers.asUnsignedByteArray(new BigInteger("171278725565216523967285789236956265265265235675811949404040041670216363"));
        
        SecureRandom    k = new FixedSecureRandom(kData);

        ECCurve.F2m curve = new ECCurve.F2m(
            239, // m
            36, //k
            new BigInteger("32010857077C5431123A46B808906756F543423E8D27877578125778AC76", 16), // a
            new BigInteger("790408F2EEDAF392B012EDEFB3392F30F4327C0CA3F31FC383C422AA8C16", 16)); // b
    
        ECDomainParameters params = new ECDomainParameters(
            curve,
            curve.decodePoint(Hex.decode("0457927098FA932E7C0A96D3FD5B706EF7E5F5C156E16B7E7C86038552E91D61D8EE5077C33FECF6F1A16B268DE469C3C7744EA9A971649FC7A9616305")), // G
            new BigInteger("220855883097298041197912187592864814557886993776713230936715041207411783"), // n
            BigInteger.valueOf(4)); // h
    
        ECPrivateKeyParameters priKey = new ECPrivateKeyParameters(
            new BigInteger("145642755521911534651321230007534120304391871461646461466464667494947990"), // d
            params);
    
        ECDSASigner ecdsa = new ECDSASigner();
        ParametersWithRandom param = new ParametersWithRandom(priKey, k);
    
        ecdsa.init(true, param);
    
        byte[] message = new BigInteger("968236873715988614170569073515315707566766479517968236873715988614170569073515315707566766479517968236873715988614170569073515315707566766479517").toByteArray();
        BigInteger[] sig = ecdsa.generateSignature(message);
    
        if (!r.equals(sig[0]))
        {
            fail("r component wrong." + System.getProperty("line.separator")
                + " expecting: " + r + System.getProperty("line.separator")
                + " got      : " + sig[0]);
        }
    
        if (!s.equals(sig[1]))
        {
            fail("s component wrong." + System.getProperty("line.separator")
                + " expecting: " + s + System.getProperty("line.separator")
                + " got      : " + sig[1]);
        }
    
        // Verify the signature
        ECPublicKeyParameters pubKey = new ECPublicKeyParameters(
            curve.decodePoint(Hex.decode("045894609CCECF9A92533F630DE713A958E96C97CCB8F5ABB5A688A238DEED6DC2D9D0C94EBFB7D526BA6A61764175B99CB6011E2047F9F067293F57F5")), // Q
            params);

        ecdsa.init(false, pubKey);
        if (!ecdsa.verifySignature(message, sig[0], sig[1]))
        {
            fail("signature fails");
        }
    }

    /**
     * key generation test
     */
    private void testECDSAKeyGenTest()
    {
        SecureRandom    random = new SecureRandom();
        ECCurve.Fp curve = new ECCurve.Fp(
            new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
            new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
            new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b

        ECDomainParameters params = new ECDomainParameters(
            curve,
            curve.decodePoint(Hex.decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
            new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307")); // n


        ECKeyPairGenerator          pGen = new ECKeyPairGenerator();
        ECKeyGenerationParameters   genParam = new ECKeyGenerationParameters(
                                        params,
                                        random);

        pGen.init(genParam);

        AsymmetricCipherKeyPair  pair = pGen.generateKeyPair();
    
        ParametersWithRandom param = new ParametersWithRandom(pair.getPrivate(), random);

        ECDSASigner ecdsa = new ECDSASigner();

        ecdsa.init(true, param);

        byte[] message = new BigInteger("968236873715988614170569073515315707566766479517").toByteArray();
        BigInteger[] sig = ecdsa.generateSignature(message);

        ecdsa.init(false, pair.getPublic());

        if (!ecdsa.verifySignature(message, sig[0], sig[1]))
        {
            fail("signature fails");
        }
    }

    /**
     * Basic Key Agreement Test
     */
    private void testECBasicAgreementTest()
    {
        SecureRandom    random = new SecureRandom();
        ECCurve.Fp curve = new ECCurve.Fp(
            new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
            new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
            new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b

        ECDomainParameters params = new ECDomainParameters(
            curve,
            curve.decodePoint(Hex.decode("020ffa963cdca8816ccc33b8642bedf905c3d358573d3f27fbbd3b3cb9aaaf")), // G
            new BigInteger("883423532389192164791648750360308884807550341691627752275345424702807307")); // n


        ECKeyPairGenerator          pGen = new ECKeyPairGenerator();
        ECKeyGenerationParameters   genParam = new ECKeyGenerationParameters(
                                        params,
                                        random);

        pGen.init(genParam);

        AsymmetricCipherKeyPair  p1 = pGen.generateKeyPair();
        AsymmetricCipherKeyPair  p2 = pGen.generateKeyPair();
    
        //
        // two way
        //
        BasicAgreement    e1 = new ECDHBasicAgreement();
        BasicAgreement    e2 = new ECDHBasicAgreement();

        e1.init(p1.getPrivate());
        e2.init(p2.getPrivate());

        BigInteger   k1 = e1.calculateAgreement(p2.getPublic());
        BigInteger   k2 = e2.calculateAgreement(p1.getPublic());

        if (!k1.equals(k2))
        {
            fail("calculated agreement test failed");
        }

        //
        // two way
        //
        e1 = new ECDHCBasicAgreement();
        e2 = new ECDHCBasicAgreement();

        e1.init(p1.getPrivate());
        e2.init(p2.getPrivate());

        k1 = e1.calculateAgreement(p2.getPublic());
        k2 = e2.calculateAgreement(p1.getPublic());

        if (!k1.equals(k2))
        {
            fail("calculated agreement test failed");
        }
    }



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

    public void performTest()
    {
        decodeTest();
        testECDSA192bitPrime();
        testECDSA239bitPrime();
        testECDSA191bitBinary();
        testECDSA239bitBinary();
        testECDSAKeyGenTest();
        testECBasicAgreementTest();
        testECDSA239bitBinaryAndLargeDigest();
    }


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