co.mitro.core.crypto.GenerateKeysToFile.java Source code

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Here is the source code for co.mitro.core.crypto.GenerateKeysToFile.java

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/*******************************************************************************
 * Copyright (c) 2013 Lectorius, Inc.
 * Authors:
 * Vijay Pandurangan (vijayp@mitro.co)
 * Evan Jones (ej@mitro.co)
 * Adam Hilss (ahilss@mitro.co)
 *
 *
 *     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/>.
 *     
 *     You can contact the authors at inbound@mitro.co.
 *******************************************************************************/
/**
 * 
 */
package co.mitro.core.crypto;

import java.io.File;
import java.nio.charset.Charset;
import java.util.List;

import com.google.common.collect.Lists;
import com.google.common.io.Files;
import com.google.gson.Gson;

/**
 * @author vijayp
 *
 */
public class GenerateKeysToFile {

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        long start = System.currentTimeMillis();
        if (args.length < 2) {
            throw new Exception("Need 2 args: numKeys outputFileName");
        }
        KeyczarKeyFactory kz = new KeyczarKeyFactory();
        final int numKeys = Integer.valueOf(args[0]);

        List<String> keys = Lists.newLinkedList();
        for (int i = 0; i < numKeys; ++i) {
            System.out.println("generating key " + i);
            keys.add(kz.generate().toString());
        }
        Gson gson = new Gson();
        String out = gson.toJson(keys);
        Files.write(out, new File(args[1]), Charset.forName("UTF-8"));

        System.out.println("done in " + (System.currentTimeMillis() - start) + " ms.");

    }

}