Java Key Pair Create generateKeyPair(final Provider provider, final String keyPairAlgorithm, final String secureAlgorithm)

Description

generate Key Pair

License

Open Source License

Declaration

public static KeyPair generateKeyPair(final Provider provider, final String keyPairAlgorithm,
            final String secureAlgorithm) 

Method Source Code

//package com.java2s;
/*//from  w w w .j  av a  2  s.co m
 * Copyright (c) 2011, Everit Kft.
 *
 * All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301  USA
 */

import java.security.KeyPair;
import java.security.KeyPairGenerator;

import java.security.Provider;

import java.security.SecureRandom;

public class Main {
    private static final Object lockObject = new Object();
    static KeyPair LAST_GENERATED_KEY_PAIR = null;

    public static KeyPair generateKeyPair(final Provider provider, final String keyPairAlgorithm,
            final String secureAlgorithm) {
        try {
            KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(keyPairAlgorithm, provider);
            SecureRandom secureRandom = SecureRandom.getInstance(secureAlgorithm);
            keyPairGenerator.initialize(1024, secureRandom);
            synchronized (lockObject) {
                LAST_GENERATED_KEY_PAIR = keyPairGenerator.generateKeyPair();
                return LAST_GENERATED_KEY_PAIR;
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

Related

1. generateKeyPair()
2. generateKeyPair()
3. generateKeyPair()
4. generateKeyPair()
5. generateKeyPair()
6. generateKeyPair(final String algorithm, final int keylen)
7. generateKeyPair(final String algorithmModePad, final int keySize)
8. generateKeyPair(int bit)
9. generateKeyPair(int keySize)