Here is Java implementation of MD5 hashing that will produce exactly the same result as
md5()
function in PHP and MySQL:
public static String md5(String input) throws NoSuchAlgorithmException { String result = input; if(input != null) { MessageDigest md = MessageDigest.getInstance("MD5"); //or "SHA-1" md.update(input.getBytes()); BigInteger hash = new BigInteger(1, md.digest()); result = hash.toString(16); if ((result.length() % 2) != 0) { result = "0" + result; } } return result; }