Here you can find the source of generateKeys(int size)
public static KeyPair generateKeys(int size) throws NoSuchAlgorithmException
//package com.java2s; /**/*from w w w . j a va2 s .c om*/ * Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3, 29 June 2007; * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.gnu.org/licenses/lgpl-3.0.txt * * 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 { public static KeyPair generateKeys(int size) throws NoSuchAlgorithmException { // Generate a key KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA"); kpg.initialize(size); KeyPair kp = kpg.genKeyPair(); return kp; } }