Here you can find the source of bytesToBigInteger(byte[] data)
public static BigInteger bytesToBigInteger(byte[] data)
//package com.java2s; //License from project: Apache License import java.math.BigInteger; public class Main { public static BigInteger bytesToBigInteger(byte[] data) { return new BigInteger(1, data); }/*from www . ja v a 2 s.co m*/ }