Example usage for java.security.interfaces DSAKeyPairGenerator initialize

Introduction

In this page you can find the example usage for java.security.interfaces DSAKeyPairGenerator initialize.

Prototype

public void initialize(int modlen, boolean genParams, SecureRandom random) throws InvalidParameterException;

Source Link

Document

Initializes the key pair generator for a given modulus length (instead of parameters), and an optional SecureRandom bit source.

Usage

From source file:net.link.util.test.pkix.PkiTestUtils.java

public static KeyPair generateKeyPair(String algorithm)
        throws NoSuchAlgorithmException, InvalidAlgorithmParameterException {

    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(algorithm);
    SecureRandom random = new SecureRandom();
    if ("RSA".equals(keyPairGenerator.getAlgorithm()))
        keyPairGenerator.initialize(new RSAKeyGenParameterSpec(RSA_KEYSIZE, RSAKeyGenParameterSpec.F4), random);
    else if (keyPairGenerator instanceof DSAKeyPairGenerator) {
        DSAKeyPairGenerator dsaKeyPairGenerator = (DSAKeyPairGenerator) keyPairGenerator;
        dsaKeyPairGenerator.initialize(DSA_MODLEN, false, random);
    }//from   w  w  w  . ja  v a2 s  .co m
    return keyPairGenerator.generateKeyPair();
}

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From source file:net.link.util.common.KeyUtils.java

public static KeyPair generateKeyPair(String algorithm) throws NoSuchAlgorithmException {

    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(algorithm);
    SecureRandom random = new SecureRandom();
    if ("RSA".equals(keyPairGenerator.getAlgorithm()))
        try {//from   ww w .j  a  va2  s .co  m
            keyPairGenerator.initialize(new RSAKeyGenParameterSpec(RSA_KEYSIZE, RSAKeyGenParameterSpec.F4),
                    random);
        } catch (InvalidAlgorithmParameterException e) {
            throw new InternalInconsistencyException("KeyGenParams incompatible with key generator.", e);
        }
    else if (keyPairGenerator instanceof DSAKeyPairGenerator) {
        DSAKeyPairGenerator dsaKeyPairGenerator = (DSAKeyPairGenerator) keyPairGenerator;
        dsaKeyPairGenerator.initialize(DSA_MODLEN, false, random);
    }

    return keyPairGenerator.generateKeyPair();
}

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From source file:test.integ.be.fedict.trust.util.TestUtils.java

public static KeyPair generateKeyPair(String algorithm)
        throws NoSuchAlgorithmException, InvalidAlgorithmParameterException {

    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(algorithm);
    SecureRandom random = new SecureRandom();
    if ("RSA".equals(keyPairGenerator.getAlgorithm())) {
        keyPairGenerator.initialize(new RSAKeyGenParameterSpec(1024, RSAKeyGenParameterSpec.F4), random);
    } else if (keyPairGenerator instanceof DSAKeyPairGenerator) {
        DSAKeyPairGenerator dsaKeyPairGenerator = (DSAKeyPairGenerator) keyPairGenerator;
        dsaKeyPairGenerator.initialize(512, false, random);
    }/* ww  w .ja v  a 2s  .com*/
    return keyPairGenerator.generateKeyPair();
}

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