crc32 generator

Recently used STM32 CRC32 module, look at the official website Lib, feel very simple to use. However, you will find that the direct use will appear, and many online CRC32 Web sites or PC-side CRC32 Verification Tool calculation results

This article was reproduced from: http://blog.163.com/yucheng_xiao/blog/static/76600192201393092918776/First, the basic principleThe CRC test principle is actually the addition of an R-bit binary test code (sequence) after a P-bit binary data

import java.math.BigInteger;import java.util.Date;import java.util.Random;import java.util.zip.CRC32;public class keygen{ /** * @param s * @param i * @param bytes * @return */ public static short getCRC(String s, int i,

This article introduces some of the functions of cryptography in PHP, please refer to your friends.The functions that implement encryption in PHP are as follows: 1,md5 () 2,sha1 () 3,crc32 () 4,crypt () 5,uniqid ()The 1,MD5 () function defines and

Based on common functions in PHP. Array_change_key_case-array array_chunk whose return string key names are all lowercase or uppercase-split an array into multiple array_combine-create an array, returns an array with the array value array_change_key_

The following is a detailed analysis of common functions in PHP. For more information, see array_change_key_case. the returned string key names are all lowercase or upper-case arrays. Array_chunk-divide an array into multiple Array_combine-creates

Math function: 10 more commonly used standard red. abs-Absolute Value acos-Anti-cosine acosh-Inverse hyperbolic cosine asin-anyway Chord asinh-Inverse hyperbolic sine atan2-two-parameter tangent atan-anyway cut atanh-Inverse hyperbolic

array_change_key_case-returns an array with a string key that is all lowercase or uppercase array_chunk-to split an array into multiple Array_combine-creates an array with the value of one array as its key name and the value of the other array as

Yahoo! Researchers used hadoop to complete the Jim Gray benchmark sorting, which contains many related benchmarks, each of which has its own rules. All sorting benchmarks are determined by measuring the sorting time of different records. Each record

D:\PROGRAMME\NODEJS>NPM install-g express-generator@4 error:eexist, mkdir ' C:\Users\gc57\AppData\Roaming\npm ' d:\ Programme\nodejs>npm-v 1.4.23 d:\programme\nodejs>npm install-g express-generator@4 error:eexist, mkdir ' C:\Use