Java Key Pair Create generateKeyPair(int keySize)

Description

Generate a new RSA keypair.

License

Apache License

Parameter

Parameter	Description
keySize	- the size of the key

Exception

Parameter	Description
NoSuchAlgorithmException	on failure to load RSA key generator

Return

KeyPair

Declaration

public static KeyPair generateKeyPair(int keySize) throws NoSuchAlgorithmException 

Method Source Code

//package com.java2s;
/*/*w  w  w.  j  av  a  2s.  c  om*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.*;

public class Main {
    /**
     * Generate a new RSA keypair.
     *
     * @param keySize - the size of the key
     * @return KeyPair
     * @throws NoSuchAlgorithmException on failure to load RSA key generator
     */
    public static KeyPair generateKeyPair(int keySize) throws NoSuchAlgorithmException {
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        keyPairGenerator.initialize(keySize);
        return keyPairGenerator.genKeyPair();
    }
}

Related

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