generate RSA Key Pair - Java Security

Java examples for Security:RSA

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Description

generate RSA Key Pair

Demo Code

/*//from ww w. j  a  v a  2s  .  c o m
 * Copyright (C) 2016  Matteo Morena
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
//package com.java2s;

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

public class Main {
    public static KeyPair genKeyPair() {
        return genKeyPair(2048);
    }

    public static KeyPair genKeyPair(int keySize) {
        try {
            KeyPairGenerator keyPairGenerator = KeyPairGenerator
                    .getInstance("RSA");
            keyPairGenerator.initialize(keySize);
            return keyPairGenerator.genKeyPair();
        } catch (NoSuchAlgorithmException e) {
            // Can't happen
        }
        return null;
    }
}

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