Java tutorial
//package com.java2s; //License from project: Open Source License import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import android.util.Base64; public class Main { public static String SHA256(String text) throws NoSuchAlgorithmException { MessageDigest md = MessageDigest.getInstance("SHA-256"); md.update(text.getBytes()); byte[] digest = md.digest(); return Base64.encodeToString(digest, Base64.DEFAULT); } }