Java tutorial
//package com.java2s; import java.math.BigInteger; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import android.util.Log; public class Main { public static String md5(String senha) { String sen = ""; MessageDigest md = null; try { md = MessageDigest.getInstance("MD5"); } catch (NoSuchAlgorithmException e) { Log.w("Problemas ao gerar MD5", e); } BigInteger hash = new BigInteger(1, md.digest(senha.getBytes())); sen = hash.toString(16); return sen; } }