Java MD5 String MD5(String text)

Description

Returns text digested in MD5.

License

Open Source License

Declaration

public static String MD5(String text) 

Method Source Code

//package com.java2s;
/*//from   w ww .j  a va  2 s.  c o  m
Simeolib - a useful general purpose library
Copyright (C) Simeosoft di Carlo Simeone
       
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
    
This library 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
Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA   
 */

import java.security.MessageDigest;

public class Main {
    private static final String HEX_DIGITS = "0123456789abcdef";

    /**
     * Returns text digested in MD5.
     */
    public static String MD5(String text) {
        MessageDigest md5 = null;
        try {
            md5 = MessageDigest.getInstance("MD5");
        } catch (Exception e) {
            System.out.println("***** MD5 EXC: " + e);
        }
        md5.update(text.getBytes());
        return toHexString(md5.digest());
    }

    private static String toHexString(byte[] v) {
        StringBuffer sb = new StringBuffer(v.length * 2);
        for (int i = 0; i < v.length; i++) {
            int b = v[i] & 0xFF;
            sb.append(HEX_DIGITS.charAt(b >>> 4)).append(HEX_DIGITS.charAt(b & 0xF));
        }
        return sb.toString();
    }
}

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