Java 类org.bouncycastle.crypto.params.CramerShoupParameters 实例源码

项目：gwt-crypto 文件：CramerShoupParametersGenerator.java

/**
     * which generates the p and g values from the given parameters, returning
     * the CramerShoupParameters object.
     * <p>
     * Note: can take a while...
     * </p>
     */
    public CramerShoupParameters generateParameters()
    {
        //
        // find a safe prime p where p = 2*q + 1, where p and q are prime.
        //
        BigInteger[] safePrimes = ParametersHelper.generateSafePrimes(size, certainty, random);

//      BigInteger p = safePrimes[0];
        BigInteger q = safePrimes[1];
        BigInteger g1 = ParametersHelper.selectGenerator(q, random);
        BigInteger g2 = ParametersHelper.selectGenerator(q, random);
        while (g1.equals(g2))
        {
            g2 = ParametersHelper.selectGenerator(q, random);
        }

        return new CramerShoupParameters(q, g1, g2, new SHA256Digest());
    }

项目：gwt-crypto 文件：CramerShoupTest.java

private CramerShoupCiphertext encrypt(BigInteger message, String label)
{
    CramerShoupKeyPairGenerator kpGen = new CramerShoupKeyPairGenerator();
    CramerShoupParametersGenerator pGen = new CramerShoupParametersGenerator();

    pGen.init(2048, 1, RND);
    CramerShoupParameters params = pGen.generateParameters(DHStandardGroups.rfc3526_2048);
    CramerShoupKeyGenerationParameters param = new CramerShoupKeyGenerationParameters(RND, params);

    kpGen.init(param);
    keyPair = kpGen.generateKeyPair();

    CramerShoupCoreEngine engine = new CramerShoupCoreEngine();
    if (label != null)
    {
        engine.init(true, keyPair.getPublic(), label);
    }
    else
    {
        engine.init(true, keyPair.getPublic());
    }

    CramerShoupCiphertext ciphertext = engine.encryptBlock(message);

    return ciphertext;
}

项目：Aki-SSL 文件：CramerShoupParametersGenerator.java

/**
     * which generates the p and g values from the given parameters, returning
     * the CramerShoupParameters object.
     * <p>
     * Note: can take a while...
     * </p>
     */
    public CramerShoupParameters generateParameters()
    {
        //
        // find a safe prime p where p = 2*q + 1, where p and q are prime.
        //
        BigInteger[] safePrimes = ParametersHelper.generateSafePrimes(size, certainty, random);

//      BigInteger p = safePrimes[0];
        BigInteger q = safePrimes[1];
        BigInteger g1 = ParametersHelper.selectGenerator(q, random);
        BigInteger g2 = ParametersHelper.selectGenerator(q, random);
        while (g1.equals(g2))
        {
            g2 = ParametersHelper.selectGenerator(q, random);
        }

        return new CramerShoupParameters(q, g1, g2, new SHA256Digest());
    }

项目：TinyTravelTracker 文件：CramerShoupParametersGenerator.java

/**
     * which generates the p and g values from the given parameters, returning
     * the CramerShoupParameters object.
     * <p>
     * Note: can take a while...
     * </p>
     */
    public CramerShoupParameters generateParameters()
    {
        //
        // find a safe prime p where p = 2*q + 1, where p and q are prime.
        //
        BigInteger[] safePrimes = ParametersHelper.generateSafePrimes(size, certainty, random);

//      BigInteger p = safePrimes[0];
        BigInteger q = safePrimes[1];
        BigInteger g1 = ParametersHelper.selectGenerator(q, random);
        BigInteger g2 = ParametersHelper.selectGenerator(q, random);
        while (g1.equals(g2))
        {
            g2 = ParametersHelper.selectGenerator(q, random);
        }

        return new CramerShoupParameters(q, g1, g2, new SHA256Digest());
    }

项目：gwt-crypto 文件：CramerShoupKeyPairGenerator.java

public AsymmetricCipherKeyPair generateKeyPair() {
    CramerShoupParameters csParams = param.getParameters();

    CramerShoupPrivateKeyParameters sk = generatePrivateKey(param.getRandom(), csParams);
    CramerShoupPublicKeyParameters pk = calculatePublicKey(csParams, sk);
    sk.setPk(pk);

    return new AsymmetricCipherKeyPair(pk, sk);
}

项目：gwt-crypto 文件：CramerShoupKeyPairGenerator.java

private CramerShoupPrivateKeyParameters generatePrivateKey(SecureRandom random, CramerShoupParameters csParams){
    BigInteger p = csParams.getP();
    CramerShoupPrivateKeyParameters key = new CramerShoupPrivateKeyParameters(csParams,
            generateRandomElement(p, random), generateRandomElement(p, random),
            generateRandomElement(p, random), generateRandomElement(p, random),
            generateRandomElement(p, random));
    return key;
}

项目：gwt-crypto 文件：CramerShoupKeyPairGenerator.java

private CramerShoupPublicKeyParameters calculatePublicKey(CramerShoupParameters csParams, CramerShoupPrivateKeyParameters sk) {
    BigInteger g1 = csParams.getG1();
    BigInteger g2 = csParams.getG2();
    BigInteger p = csParams.getP();

    BigInteger c = g1.modPow(sk.getX1(), p).multiply(g2.modPow(sk.getX2(), p));
    BigInteger d = g1.modPow(sk.getY1(), p).multiply(g2.modPow(sk.getY2(), p));
    BigInteger h = g1.modPow(sk.getZ(), p);

    return new CramerShoupPublicKeyParameters(csParams, c, d, h);
}

项目：gwt-crypto 文件：CramerShoupParametersGenerator.java

public CramerShoupParameters generateParameters(DHParameters dhParams)
{
    BigInteger p = dhParams.getP();
    BigInteger g1 = dhParams.getG();

    // now we just need a second generator
    BigInteger g2 = ParametersHelper.selectGenerator(p, random);
    while (g1.equals(g2))
    {
        g2 = ParametersHelper.selectGenerator(p, random);
    }

    return new CramerShoupParameters(p, g1, g2, new SHA256Digest());
}

项目：Aki-SSL 文件：CramerShoupKeyPairGenerator.java

public AsymmetricCipherKeyPair generateKeyPair() {
    CramerShoupParameters csParams = param.getParameters();

    CramerShoupPrivateKeyParameters sk = generatePrivateKey(param.getRandom(), csParams);
    CramerShoupPublicKeyParameters pk = calculatePublicKey(csParams, sk);
    sk.setPk(pk);

    return new AsymmetricCipherKeyPair(pk, sk);
}

项目：Aki-SSL 文件：CramerShoupKeyPairGenerator.java

private CramerShoupPrivateKeyParameters generatePrivateKey(SecureRandom random, CramerShoupParameters csParams){
    BigInteger p = csParams.getP();
    CramerShoupPrivateKeyParameters key = new CramerShoupPrivateKeyParameters(csParams,
            generateRandomElement(p, random), generateRandomElement(p, random),
            generateRandomElement(p, random), generateRandomElement(p, random),
            generateRandomElement(p, random));
    return key;
}

项目：Aki-SSL 文件：CramerShoupKeyPairGenerator.java

private CramerShoupPublicKeyParameters calculatePublicKey(CramerShoupParameters csParams, CramerShoupPrivateKeyParameters sk) {
    BigInteger g1 = csParams.getG1();
    BigInteger g2 = csParams.getG2();
    BigInteger p = csParams.getP();

    BigInteger c = g1.modPow(sk.getX1(), p).multiply(g2.modPow(sk.getX2(), p));
    BigInteger d = g1.modPow(sk.getY1(), p).multiply(g2.modPow(sk.getY2(), p));
    BigInteger h = g1.modPow(sk.getZ(), p);

    return new CramerShoupPublicKeyParameters(csParams, c, d, h);
}

项目：Aki-SSL 文件：CramerShoupParametersGenerator.java

public CramerShoupParameters generateParameters(DHParameters dhParams)
{
    BigInteger p = dhParams.getP();
    BigInteger g1 = dhParams.getG();

    // now we just need a second generator
    BigInteger g2 = ParametersHelper.selectGenerator(p, random);
    while (g1.equals(g2))
    {
        g2 = ParametersHelper.selectGenerator(p, random);
    }

    return new CramerShoupParameters(p, g1, g2, new SHA256Digest());
}

项目：TinyTravelTracker 文件：CramerShoupKeyPairGenerator.java

public AsymmetricCipherKeyPair generateKeyPair() {
    CramerShoupParameters csParams = param.getParameters();

    CramerShoupPrivateKeyParameters sk = generatePrivateKey(param.getRandom(), csParams);
    CramerShoupPublicKeyParameters pk = calculatePublicKey(csParams, sk);
    sk.setPk(pk);

    return new AsymmetricCipherKeyPair(pk, sk);
}

项目：TinyTravelTracker 文件：CramerShoupKeyPairGenerator.java

private CramerShoupPrivateKeyParameters generatePrivateKey(SecureRandom random, CramerShoupParameters csParams){
    BigInteger p = csParams.getP();
    CramerShoupPrivateKeyParameters key = new CramerShoupPrivateKeyParameters(csParams,
            generateRandomElement(p, random), generateRandomElement(p, random),
            generateRandomElement(p, random), generateRandomElement(p, random),
            generateRandomElement(p, random));
    return key;
}

项目：TinyTravelTracker 文件：CramerShoupKeyPairGenerator.java

private CramerShoupPublicKeyParameters calculatePublicKey(CramerShoupParameters csParams, CramerShoupPrivateKeyParameters sk) {
    BigInteger g1 = csParams.getG1();
    BigInteger g2 = csParams.getG2();
    BigInteger p = csParams.getP();

    BigInteger c = g1.modPow(sk.getX1(), p).multiply(g2.modPow(sk.getX2(), p));
    BigInteger d = g1.modPow(sk.getY1(), p).multiply(g2.modPow(sk.getY2(), p));
    BigInteger h = g1.modPow(sk.getZ(), p);

    return new CramerShoupPublicKeyParameters(csParams, c, d, h);
}

项目：TinyTravelTracker 文件：CramerShoupParametersGenerator.java

public CramerShoupParameters generateParameters(DHParameters dhParams)
{
    BigInteger p = dhParams.getP();
    BigInteger g1 = dhParams.getG();

    // now we just need a second generator
    BigInteger g2 = ParametersHelper.selectGenerator(p, random);
    while (g1.equals(g2))
    {
        g2 = ParametersHelper.selectGenerator(p, random);
    }

    return new CramerShoupParameters(p, g1, g2, new SHA256Digest());
}