MD5 hashing in Android

Question

I have a simple android client which needs to \'talk\' to a simple C# HTTP listener. I want to provide a basic level of authentication by passing username/password in POST r

Answer 1

A solution above using DigestUtils didn't work for me. In my version of Apache commons (the latest one for 2013) there is no such class.

I found another solution here in one blog. It works perfect and doesn't need Apache commons. It looks a little shorter than the code in accepted answer above.

public static String getMd5Hash(String input) {
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] messageDigest = md.digest(input.getBytes());
        BigInteger number = new BigInteger(1, messageDigest);
        String md5 = number.toString(16);

        while (md5.length() < 32)
            md5 = "0" + md5;

        return md5;
    } catch (NoSuchAlgorithmException e) {
        Log.e("MD5", e.getLocalizedMessage());
        return null;
    }
}

You will need these imports:

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;