Java Code Examples for java.security.spec.DSAGenParameterSpec#getPrimePLength()

The following examples show how to use java.security.spec.DSAGenParameterSpec#getPrimePLength() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: DSAParameterGenerator.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
protected void engineInit(AlgorithmParameterSpec genParamSpec,
                          SecureRandom random)
    throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec) genParamSpec;
    int primePLen = dsaGenParams.getPrimePLength();
    if (primePLen > 2048) {
        throw new InvalidParameterException
            ("No support for prime size " + primePLen);
    }
    // directly initialize using the already validated values
    this.valueL = primePLen;
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 2
Source File: TestAlgParameterGenerator.java    From dragonwell8_jdk with GNU General Public License v2.0 6 votes vote down vote up 
private static void checkParamStrength(AlgorithmParameters param,
        DSAGenParameterSpec genParam)
        throws Exception {
    String algo = param.getAlgorithm();
    if (!algo.equalsIgnoreCase("DSA")) {
        throw new RuntimeException("Unexpected type of parameters: " + algo);
    }
    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strength = genParam.getPrimePLength();
    if (strength != valueL) {
        System.out.println("P: Expected " + strength + " but actual " + valueL);
        throw new RuntimeException("Wrong P strength");
    }
    int valueN = spec.getQ().bitLength();
    strength = genParam.getSubprimeQLength();
    if (strength != valueN) {
        System.out.println("Q: Expected " + strength + " but actual " + valueN);
        throw new RuntimeException("Wrong Q strength");
    }
}
Example 3
Source File: DSAParameterGenerator.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
protected void engineInit(AlgorithmParameterSpec genParamSpec,
                          SecureRandom random)
    throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec) genParamSpec;
    int primePLen = dsaGenParams.getPrimePLength();
    if (primePLen > 2048) {
        throw new InvalidParameterException
            ("No support for prime size " + primePLen);
    }
    // directly initialize using the already validated values
    this.valueL = primePLen;
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 4
Source File: DSAParameterGenerator.java    From jdk8u-dev-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
protected void engineInit(AlgorithmParameterSpec genParamSpec,
                          SecureRandom random)
    throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec) genParamSpec;
    int primePLen = dsaGenParams.getPrimePLength();
    if (primePLen > 2048) {
        throw new InvalidParameterException
            ("No support for prime size " + primePLen);
    }
    // directly initialize using the already validated values
    this.valueL = primePLen;
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 5
Source File: DSAParameterGenerator.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
protected void engineInit(AlgorithmParameterSpec genParamSpec,
                          SecureRandom random)
    throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec) genParamSpec;
    int primePLen = dsaGenParams.getPrimePLength();
    if (primePLen > 2048) {
        throw new InvalidParameterException
            ("No support for prime size " + primePLen);
    }
    // directly initialize using the already validated values
    this.valueL = primePLen;
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 6
Source File: TestAlgParameterGenerator.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
private static void checkParamStrength(AlgorithmParameters param,
        DSAGenParameterSpec genParam)
        throws Exception {
    String algo = param.getAlgorithm();
    if (!algo.equalsIgnoreCase("DSA")) {
        throw new RuntimeException("Unexpected type of parameters: " + algo);
    }
    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strength = genParam.getPrimePLength();
    if (strength != valueL) {
        System.out.println("P: Expected " + strength + " but actual " + valueL);
        throw new RuntimeException("Wrong P strength");
    }
    int valueN = spec.getQ().bitLength();
    strength = genParam.getSubprimeQLength();
    if (strength != valueN) {
        System.out.println("Q: Expected " + strength + " but actual " + valueN);
        throw new RuntimeException("Wrong Q strength");
    }
}
Example 7
Source File: TestAlgParameterGenerator.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
private static void checkParamStrength(AlgorithmParameters param,
        DSAGenParameterSpec genParam)
        throws Exception {
    String algo = param.getAlgorithm();
    if (!algo.equalsIgnoreCase("DSA")) {
        throw new RuntimeException("Unexpected type of parameters: " + algo);
    }
    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strength = genParam.getPrimePLength();
    if (strength != valueL) {
        System.out.println("P: Expected " + strength + " but actual " + valueL);
        throw new RuntimeException("Wrong P strength");
    }
    int valueN = spec.getQ().bitLength();
    strength = genParam.getSubprimeQLength();
    if (strength != valueN) {
        System.out.println("Q: Expected " + strength + " but actual " + valueN);
        throw new RuntimeException("Wrong Q strength");
    }
}
Example 8
Source File: DSAParameterGenerator.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
protected void engineInit(AlgorithmParameterSpec genParamSpec,
                          SecureRandom random)
    throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec) genParamSpec;
    int primePLen = dsaGenParams.getPrimePLength();
    if (primePLen > 2048) {
        throw new InvalidParameterException
            ("No support for prime size " + primePLen);
    }
    // directly initialize using the already validated values
    this.valueL = primePLen;
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 9
Source File: DSAParameterGenerator.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter
 *        generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
@Override
protected void engineInit(AlgorithmParameterSpec genParamSpec,
        SecureRandom random) throws InvalidAlgorithmParameterException {

    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec)genParamSpec;

    // directly initialize using the already validated values
    this.valueL = dsaGenParams.getPrimePLength();
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 10
Source File: DSAParameterGenerator.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter
 *        generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
@Override
protected void engineInit(AlgorithmParameterSpec genParamSpec,
        SecureRandom random) throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec)genParamSpec;

    // directly initialize using the already validated values
    this.valueL = dsaGenParams.getPrimePLength();
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 11
Source File: TestDSAGenParameterSpec.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void checkParam(AlgorithmParameters param,
        DSAGenParameterSpec genParam) throws InvalidParameterSpecException,
                NoSuchAlgorithmException, NoSuchProviderException,
                InvalidAlgorithmParameterException {
    String algorithm = param.getAlgorithm();
    if (!algorithm.equalsIgnoreCase(ALGORITHM_NAME)) {
        throw new RuntimeException(
                "Unexpected type of parameters: " + algorithm);
    }

    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strengthP = genParam.getPrimePLength();
    if (strengthP != valueL) {
        System.out.printf("P: Expected %d but actual %d%n", strengthP,
                valueL);
        throw new RuntimeException("Wrong P strength");
    }

    int valueN = spec.getQ().bitLength();
    int strengthQ = genParam.getSubprimeQLength();
    if (strengthQ != valueN) {
        System.out.printf("Q: Expected %d but actual %d%n", strengthQ,
                valueN);
        throw new RuntimeException("Wrong Q strength");
    }

    if (genParam.getSubprimeQLength() != genParam.getSeedLength()) {
        System.out.println("Defaut seed length should be the same as Q.");
        throw new RuntimeException("Wrong seed length");
    }

    // use the parameters to generate real DSA keys
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM_NAME,
            PROVIDER_NAME);
    keyGen.initialize(spec);
    keyGen.generateKeyPair();
}
Example 12
Source File: DSAParameterGenerator.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter
 *        generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
@Override
protected void engineInit(AlgorithmParameterSpec genParamSpec,
        SecureRandom random) throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec)genParamSpec;

    // directly initialize using the already validated values
    this.valueL = dsaGenParams.getPrimePLength();
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 13
Source File: TestDSAGenParameterSpec.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
private static void checkParam(AlgorithmParameters param,
        DSAGenParameterSpec genParam) throws InvalidParameterSpecException,
        NoSuchAlgorithmException, NoSuchProviderException,
        InvalidAlgorithmParameterException {
    String algorithm = param.getAlgorithm();
    if (!algorithm.equalsIgnoreCase(ALGORITHM_NAME)) {
        throw new RuntimeException(
                "Unexpected type of parameters: " + algorithm);
    }

    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strengthP = genParam.getPrimePLength();
    if (strengthP != valueL) {
        System.out.printf("P: Expected %d but actual %d%n", strengthP,
                valueL);
        throw new RuntimeException("Wrong P strength");
    }

    int valueN = spec.getQ().bitLength();
    int strengthQ = genParam.getSubprimeQLength();
    if (strengthQ != valueN) {
        System.out.printf("Q: Expected %d but actual %d%n", strengthQ,
                valueN);
        throw new RuntimeException("Wrong Q strength");
    }

    if (genParam.getSubprimeQLength() != genParam.getSeedLength()) {
        System.out.println("Defaut seed length should be the same as Q.");
        throw new RuntimeException("Wrong seed length");
    }

    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM_NAME,
            PROVIDER_NAME);
    keyGen.initialize(spec);
}
Example 14
Source File: DSAParameterGenerator.java    From Bytecoder with Apache License 2.0 5 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter
 *        generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
@Override
protected void engineInit(AlgorithmParameterSpec genParamSpec,
        SecureRandom random) throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec)genParamSpec;

    // directly initialize using the already validated values
    this.valueL = dsaGenParams.getPrimePLength();
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 15
Source File: DSAParameterGenerator.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter
 *        generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
@Override
protected void engineInit(AlgorithmParameterSpec genParamSpec,
        SecureRandom random) throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec)genParamSpec;

    // directly initialize using the already validated values
    this.valueL = dsaGenParams.getPrimePLength();
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 16
Source File: DSAParameterGenerator.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter
 *        generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
@Override
protected void engineInit(AlgorithmParameterSpec genParamSpec,
        SecureRandom random) throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec)genParamSpec;

    // directly initialize using the already validated values
    this.valueL = dsaGenParams.getPrimePLength();
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 17
Source File: TestDSAGenParameterSpec.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void checkParam(AlgorithmParameters param,
        DSAGenParameterSpec genParam) throws InvalidParameterSpecException,
        NoSuchAlgorithmException, NoSuchProviderException,
        InvalidAlgorithmParameterException {
    String algorithm = param.getAlgorithm();
    if (!algorithm.equalsIgnoreCase(ALGORITHM_NAME)) {
        throw new RuntimeException(
                "Unexpected type of parameters: " + algorithm);
    }

    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strengthP = genParam.getPrimePLength();
    if (strengthP != valueL) {
        System.out.printf("P: Expected %d but actual %d%n", strengthP,
                valueL);
        throw new RuntimeException("Wrong P strength");
    }

    int valueN = spec.getQ().bitLength();
    int strengthQ = genParam.getSubprimeQLength();
    if (strengthQ != valueN) {
        System.out.printf("Q: Expected %d but actual %d%n", strengthQ,
                valueN);
        throw new RuntimeException("Wrong Q strength");
    }

    if (genParam.getSubprimeQLength() != genParam.getSeedLength()) {
        System.out.println("Defaut seed length should be the same as Q.");
        throw new RuntimeException("Wrong seed length");
    }

    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM_NAME,
            PROVIDER_NAME);
    keyGen.initialize(spec);
}
Example 18
Source File: TestDSAGenParameterSpec.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
private static void checkParam(AlgorithmParameters param,
        DSAGenParameterSpec genParam) throws InvalidParameterSpecException,
        NoSuchAlgorithmException, NoSuchProviderException,
        InvalidAlgorithmParameterException {
    String algorithm = param.getAlgorithm();
    if (!algorithm.equalsIgnoreCase(ALGORITHM_NAME)) {
        throw new RuntimeException(
                "Unexpected type of parameters: " + algorithm);
    }

    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strengthP = genParam.getPrimePLength();
    if (strengthP != valueL) {
        System.out.printf("P: Expected %d but actual %d%n", strengthP,
                valueL);
        throw new RuntimeException("Wrong P strength");
    }

    int valueN = spec.getQ().bitLength();
    int strengthQ = genParam.getSubprimeQLength();
    if (strengthQ != valueN) {
        System.out.printf("Q: Expected %d but actual %d%n", strengthQ,
                valueN);
        throw new RuntimeException("Wrong Q strength");
    }

    if (genParam.getSubprimeQLength() != genParam.getSeedLength()) {
        System.out.println("Defaut seed length should be the same as Q.");
        throw new RuntimeException("Wrong seed length");
    }

    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM_NAME,
            PROVIDER_NAME);
    keyGen.initialize(spec);
}
Example 19
Source File: DSAParameterGenerator.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter
 *        generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
@Override
protected void engineInit(AlgorithmParameterSpec genParamSpec,
        SecureRandom random) throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec)genParamSpec;

    // directly initialize using the already validated values
    this.valueL = dsaGenParams.getPrimePLength();
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
Example 20
Source File: TestDSAGenParameterSpec.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void checkParam(AlgorithmParameters param,
        DSAGenParameterSpec genParam) throws InvalidParameterSpecException,
        NoSuchAlgorithmException, NoSuchProviderException,
        InvalidAlgorithmParameterException {
    String algorithm = param.getAlgorithm();
    if (!algorithm.equalsIgnoreCase(ALGORITHM_NAME)) {
        throw new RuntimeException(
                "Unexpected type of parameters: " + algorithm);
    }

    DSAParameterSpec spec = param.getParameterSpec(DSAParameterSpec.class);
    int valueL = spec.getP().bitLength();
    int strengthP = genParam.getPrimePLength();
    if (strengthP != valueL) {
        System.out.printf("P: Expected %d but actual %d%n", strengthP,
                valueL);
        throw new RuntimeException("Wrong P strength");
    }

    int valueN = spec.getQ().bitLength();
    int strengthQ = genParam.getSubprimeQLength();
    if (strengthQ != valueN) {
        System.out.printf("Q: Expected %d but actual %d%n", strengthQ,
                valueN);
        throw new RuntimeException("Wrong Q strength");
    }

    if (genParam.getSubprimeQLength() != genParam.getSeedLength()) {
        System.out.println("Defaut seed length should be the same as Q.");
        throw new RuntimeException("Wrong seed length");
    }

    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM_NAME,
            PROVIDER_NAME);
    keyGen.initialize(spec);
}