Java tutorial
//package com.java2s; //License from project: Open Source License import java.security.MessageDigest; public class Main { private static MessageDigest digest = null; public static String md5(String s) { if (null == digest) return ""; // Create MD5 Hash digest.reset(); digest.update(s.getBytes()); byte messageDigest[] = digest.digest(); // Create Hex String StringBuffer hexString = new StringBuffer(); for (int i = 0; i < messageDigest.length; i++) hexString.append(Integer.toHexString(0xFF & messageDigest[i])); return hexString.toString(); } }