public class PasswordHash { static FrontController fc = FrontController.getInstance(); public static String hash(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) { fc.processRequest("Avviso", AlertList.ERROREGENERICO); } return generatedPassword; } }