Java Key Pair Create generateKeyPair(int keySize)

Description

Generates a new key pair.

License

Apache License

Parameter

Parameter	Description
keySize	The key size.

Exception

Parameter	Description
NoSuchAlgorithmException	an exception

Return

The key pair.

Declaration

public static KeyPair generateKeyPair(int keySize) throws NoSuchAlgorithmException 

Method Source Code

//package com.java2s;
/**/*  w w  w  . j ava  2s. c o  m*/
 * Copyright (C) 2014 Evil-Co <http://wwww.evil-co.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

public class Main {
    /**
     * Defines the base algorithm used for signatures.
     */
    public static final String ALGORITHM_SIGNATURE = "RSA";
    /**
     * Defines the default key size.
     */
    public static final int ALGORITHM_KEY_SIZE = 6144;

    /**
     * Generates a new key pair.
     * @param keySize The key size.
     * @return The key pair.
     * @throws NoSuchAlgorithmException
     */
    public static KeyPair generateKeyPair(int keySize) throws NoSuchAlgorithmException {
        // get generator
        KeyPairGenerator generator = KeyPairGenerator.getInstance(ALGORITHM_SIGNATURE);

        // set key size
        generator.initialize(keySize);

        // generate a new key pair
        return generator.generateKeyPair();
    }

    /**
     * Generates a new key pair.
     * @return The key pair.
     * @throws NoSuchAlgorithmException
     */
    public static KeyPair generateKeyPair() throws NoSuchAlgorithmException {
        return generateKeyPair(ALGORITHM_KEY_SIZE);
    }
}

Related

1. generateKeyPair(final String algorithmModePad, final int keySize)
2. generateKeyPair(int bit)
3. generateKeyPair(int keySize)
4. generateKeyPair(int keySize)
5. generateKeyPair(int keySize)
6. generateKeyPair(int keysize)
7. generateKeyPair(int keySize, String fileChavePublica, String fileChavePrivada)
8. generateKeyPair(int keySizeInBits, String algo)
9. generateKeyPair(int len)