Here you can find the source of ByteArrayToBigIntegerWithoutSign(byte[] array)
public static BigInteger ByteArrayToBigIntegerWithoutSign(byte[] array)
//package com.java2s; /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ import java.math.BigInteger; public class Main { /**//from w w w .jav a 2s . co m * Convert an array of bytes to a non-negative big integer. */ public static BigInteger ByteArrayToBigIntegerWithoutSign(byte[] array) { return new BigInteger(1, array); } }