Java tutorial
//package com.java2s; //License from project: Apache License import java.security.MessageDigest; public class Main { static byte[] encryptStreamBytes(byte[] streambytes) { return createSHA1Digest().digest(streambytes); } private static MessageDigest createSHA1Digest() { MessageDigest digest = null; try { digest = MessageDigest.getInstance("SHA-1"); } catch (Exception ex) { ex.printStackTrace(); } return digest; } }