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/*
* 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
*
* 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 org.apache.qpid.tools.security;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.security.DigestException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import org.apache.commons.codec.binary.Base64;
/**
* Utility to generate user:encodedPassword string for use in md5passwd
*/
public class Passwd
{
public static void main(String args[]) throws NoSuchAlgorithmException, DigestException, IOException
{
if (args.length != 2)
{
System.out.println("Passwd <username> <password>");
System.exit(0);
}
Passwd passwd = new Passwd();
String output = passwd.getOutput(args[0], args[1]);
System.out.println(output);
}
public String getOutput(String userName, String password) throws UnsupportedEncodingException, NoSuchAlgorithmException
{
byte[] data = password.getBytes("utf-8");
MessageDigest md = MessageDigest.getInstance("MD5");
for (byte b : data)
{
md.update(b);
}
byte[] digest = md.digest();
Base64 b64 = new Base64();
byte[] encoded = b64.encode(digest);
String encodedStr = new String(encoded, Charset.forName("utf-8"));
return userName + ":" + encodedStr;
}
}
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