Java Checksum Calculate calcChecksum(byte[] buffer, int start, int end)

Description

calc Checksum

License

Apache License

Declaration

public static byte calcChecksum(byte[] buffer, int start, int end) 

Method Source Code

//package com.java2s;
/*/*from w  w w.  j av a  2 s  .c  o  m*/
 * Copyright (C) 2012 uPhyca Inc.
 * 
 * Base on previous work by
 * Copyright (C) 2011 BRILLIANTSERVICE Co., Ltd. & RT Corporation
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. 
 */

public class Main {
    public static byte calcChecksum(byte[] buffer, int start, int end) {
        byte c = 0;
        for (int i = start + 2, num = end - 1; i < num; ++i)
            c ^= buffer[i];
        return c;
    }
}

Related

1. calcChecksum(byte[] buffer, int offset, int length)
2. calcCheckSum(byte[] bytes, int num)
3. calcCheckSum(byte[] data, int offset, int maxIdx)
4. calcChecksum(String value, int length)
5. calculateChecksum(InputStream is, String algorithm)