Java tutorial
//package com.java2s; import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class Main { public static String md5(String input) { try { MessageDigest md = MessageDigest.getInstance("MD5"); byte[] array = md.digest(input.getBytes("UTF-8")); StringBuilder sb = new StringBuilder(); for (byte anArray : array) { sb.append(String.format("%02x", anArray)); } return sb.toString(); } catch (NoSuchAlgorithmException | UnsupportedEncodingException e) { return null; } } }