Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.codemage.sql.util; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import org.springframework.stereotype.Component; /** * * @author Hasitha Lakmal */ @Component public class PasswordHasher { public String getHashcode(String passwordToHash) { String generatedPassword = null; try { // Create MessageDigest instance for MD5 MessageDigest md = MessageDigest.getInstance("MD5"); //Add password bytes to digest md.update(passwordToHash.getBytes()); //Get the hash's bytes byte[] bytes = md.digest(); //This bytes[] has bytes in decimal format; //Convert it to hexadecimal format StringBuilder sb = new StringBuilder(); for (int i = 0; i < bytes.length; i++) { sb.append(Integer.toString((bytes[i] & 0xff) + 0x100, 16).substring(1)); } //Get complete hashed password in hex format generatedPassword = sb.toString(); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } return generatedPassword; } }