Java tutorial
//package com.java2s; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class Main { public static String hash(String pass) { MessageDigest md = null; try { md = MessageDigest.getInstance("SHA-256"); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } md.update(pass.getBytes()); byte byteData[] = md.digest(); StringBuffer sb = new StringBuffer(); for (int i = 0; i < byteData.length; i++) { sb.append(Integer.toString((byteData[i] & 0xff) + 0x100, 16).substring(1)); } return sb.toString(); } }