JAVA CRC16
JAVA CRC16
/**
* CRC-16
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>名称</th>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td> CRC-16/IBM</td>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/CCITT</td>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/CCITT-FALSE</td>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/DECT R</td>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0001</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/DECT X</td>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/DNP</td>
* <td align="center">0x3D65</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/GENIBUS</td>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">MSB First</td>
* </tr>
* <tr>
* <td> CRC-16/MAXIM</td>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/MODBUS</td>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/USB</td>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/X25</td>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* <tr>
* <td> CRC-16/XMODEM</td>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @author unnamed
*
*/
public class CRC16Utils { /**
* CRC-16/IBM
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_IBM(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0x0000;
} /**
* CRC-16/CCITT
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_CCITT(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x1021) >>> 16
int wCPoly = 0x8408;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0x0000;
} /**
* CRC-16/CCITT-FALSE
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_CCITT_FALSE(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
int wCPoly = 0x1021;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0000;
} /**
* CRC-16/DECT R
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0001</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_DECT_R(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
int wCPoly = 0x0589;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0001;
} /**
* CRC-16/DECT X
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x0589</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_DECT_X(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
int wCPoly = 0x0589;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0000;
} /**
* CRC-16/DNP
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x3D65</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_DNP(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x3D65) >>> 16
int wCPoly = 0xA6BC;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/GENIBUS
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_GENIBUS(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
int wCPoly = 0x1021;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/MAXIM
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0x0000</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_MAXIM(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/MODBUS
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0x0000</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_MODBUS(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0x0000;
} /**
* CRC-16/USB
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x8005</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_USB(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
// Integer.reverse(0x8005) >>> 16
int wCPoly = 0xA001;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/X25
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0xFFFF</td>
* <td align="center">0xFFFF</td>
* <td align="center">LSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_X25(byte[] source, int offset, int length) {
int wCRCin = 0xFFFF;
// Integer.reverse(0x1021) >>> 16
int wCPoly = 0x8408;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
wCRCin ^= ((int) source[i] & 0x00FF);
for (int j = 0; j < 8; j++) {
if ((wCRCin & 0x0001) != 0) {
wCRCin >>= 1;
wCRCin ^= wCPoly;
} else {
wCRCin >>= 1;
}
}
}
return wCRCin ^= 0xFFFF;
} /**
* CRC-16/XMODEM
*
* <table width="400px" border="1" cellpadding="0" cellspacing="0">
* <tr>
* <th>多项式</th>
* <th>初始值</th>
* <th>异或值</th>
* <th>Bit反转</th>
* </tr>
* <tr>
* <td align="center">0x1021</td>
* <td align="center">0x0000</td>
* <td align="center">0x0000</td>
* <td align="center">MSB First</td>
* </tr>
* </table>
*
* @param source
* @param offset
* @param length
* @return
*/
public static int CRC16_XMODEM(byte[] source, int offset, int length) {
int wCRCin = 0x0000;
int wCPoly = 0x1021;
for (int i = offset, cnt = offset + length; i < cnt; i++) {
for (int j = 0; j < 8; j++) {
boolean bit = ((source[i] >> (7 - j) & 1) == 1);
boolean c15 = ((wCRCin >> 15 & 1) == 1);
wCRCin <<= 1;
if (c15 ^ bit)
wCRCin ^= wCPoly;
}
}
wCRCin &= 0xFFFF;
return wCRCin ^= 0x0000;
} }
转：https://blog.csdn.net/zte1055889498/article/details/102686777
JAVA CRC16的更多相关文章
- java CRC16 算法
代码摘自:https://www.cnblogs.com/lujiannt/p/9246256.html 1.CRC16算法 public class CRC16Util { /** * 计算CRC1 ...
- Java CRC16 MODBUS校验算法实现
/** * CRC校验算法工具类 */ public class CRCUtil { public static String getCRC(String data) { data = data.re ...
- C#,Java,C -循环冗余检验：CRC-16-CCITT查表法
C#代码 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ...
- Spark案例分析
一.需求:计算网页访问量前三名 import org.apache.spark.rdd.RDD import org.apache.spark.{SparkConf, SparkContext} /* ...
- CRC16算法之三：CRC16-CCITT-MODBUS算法的java实现
CRC16算法系列文章: CRC16算法之一:CRC16-CCITT-FALSE算法的java实现 CRC16算法之二:CRC16-CCITT-XMODEM算法的java实现 CRC16算法之三:CR ...
- CRC16算法之一：CRC16-CCITT-FALSE算法的java实现
CRC16算法系列文章: CRC16算法之一:CRC16-CCITT-FALSE算法的java实现 CRC16算法之二:CRC16-CCITT-XMODEM算法的java实现 CRC16算法之三:CR ...
- CRC16算法之二：CRC16-CCITT-XMODEM算法的java实现
CRC16算法系列文章: CRC16算法之一:CRC16-CCITT-FALSE算法的java实现 CRC16算法之二:CRC16-CCITT-XMODEM算法的java实现 CRC16算法之三:CR ...
- C++与JAVA代码实现CRC-16/MODBUS算法，且与 http://www.ip33.com/crc.html 进行结果验证
CRC-16/MODBUS的多项式为:x16+x15+x2+1(8005),宽度为16.运算时,首先将一个16位的寄存器预置为11111111 11111111,然后连续把数据帧中的每个字节中的8位与 ...
- CRC-16/XMODE X16+X12+X5+1 C#、C和java环境下实现
private byte[] CRC(byte[] x, int len) //CRC校验函数 { ]; UInt16 crc = ; byte da; ; UInt16[] yu = { 0x000 ...
- CRC16校验
C++中的代码如下:传入字节(byte)数组引用和数组长度 unsigned short CTcpClient::Crc16(const char *pBuf, unsigned short nLen ...
随机推荐
- linux其他命令（查找，软链接，打包和压缩，软件安装）笔记
1,查找文件 * 是通配符,代表任意字符,0到多个. find 路径 -name "*.txt" : 查找在路径下所有以 .txt 结尾的文件. 2,软链接 (1)将桌面目 ...
- 【日常收支账本】【Day02】通过PyCharm集成QtDesigner和PyUIC快速创建界面
一.集成QtDesigner和PyUIC PyCharm集成QtDesigner和PyUIC教程 二.在QtDesigner中画出窗体 1. 主界面 编辑账本: 新增.修改或删除记录 可视化账本:通过 ...
- 【re】[NISACTF 2022]string --linux下的随机数
附件下载,查壳 发现是ELF程序,64位,ida打开分析 flag函数点进去 前面一堆代码其实都不重要,直接看主要代码: puts("The length of flag is 13&qu ...
- 两款轻便且功能强大的gif截取工具 [ScreenToGif] 和 [GifCam]
轻便且强大 提示 下述工具下载链接为官方或github地址,可能会由于你懂得的原因,而无法打开. 一.ScreenToGif 软件简介: ScreenToGif 也是一款非常轻便的.完全免费的.没广告 ...
- DP:打家劫舍
你是一个专业的小偷,计划偷窃沿街的房屋.每间房内都藏有一定的现金,影响你偷窃的唯一制约因素就是相邻的房屋装有相互连通的防盗系统,如果两间相邻的房屋在同一晚上被小偷闯入,系统会自动报警. 给定一个代表每 ...
- 神经网络入门篇：神经网络的梯度下降（Gradient descent for neural networks）
神经网络的梯度下降 在这篇博客中,讲的是实现反向传播或者说梯度下降算法的方程组 单隐层神经网络会有\(W^{[1]}\),\(b^{[1]}\),\(W^{[2]}\),\(b^{[2]}\)这些参数 ...
- 使用 Kubernetes 为 CI/CD 流水线打造高效可靠的临时环境
介绍 在不断发展的科技世界中,快速构建高质量的软件至关重要.在真实环境中测试应用程序是及早发现和修复错误的关键.但是,在真实环境中设置 CI/CD 流水线进行测试可能既棘手又昂贵. Kubernete ...
- vue-test4 -----插槽
<template> <!-- <Main class="cccc"/> <component-a/> --> <slot-d ...
- vue-project-------（模板语法，属性绑定）
<template> <h3>模板语法</h3> <p>{{msg}}</p> <p>{{number+1}}</p> ...
- ubuntu安装opencv的正确方法
本文介绍的是如何安装ubuntu下C++接口的opencv 1.安装准备: 1.1安装cmake sudo apt-get install cmake 1.2依赖环境 sudo apt-get ins ...