SSHKeyFactory.java

/*
 * Copyright 2014 Ricardo Lorenzo<unshakablespirit@gmail.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.
 */

package utils.security;

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

/**
 * Created by ricardolorenzo on 25/07/2014.
 */
public class SSHKeyFactory {
    private static final int RSA_LENGTH = 2048;

    private static KeyPair newKeyPair() {
        try {
            KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
            kpg.initialize(RSA_LENGTH);
            KeyPair kp = kpg.genKeyPair();
            return kp;
        } catch(NoSuchAlgorithmException e) {
            return null;
        }
    }

    public static SSHKey generateKey() {
        return new SSHKey(newKeyPair());
    }
}