exclusive or operation

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Share XOR computing encryption algorithms in PHPMySQL applications

This article introduces an easy-to-use encryption and decryption algorithm: using an exclusive or (XOR) operation. This algorithm is simple in principle and aims to give readers a more intuitive impression on the encryption and decryption of

In python, "and, or, different or" is different from the C language.

In python: bitwise operations are all bitwise operations. they all perform operations in the binary form of the number involved in the calculation. 1. operation: when the values of A and B are both 1, the calculation result of A and B is 1.

Use the XOR algorithm in PHP + MySQL applications

This article introduces an easy-to-use encryption and decryption algorithm: using an exclusive or (XOR) operation. This algorithm is simple in principle and aims to give readers a more intuitive impression on the encryption and decryption of

Share the XOR Algorithm in PHP MySQL applications

XOR algorithm principle From the main method of encryption, the location change method is too simple, especially when the amount of data is small, it is easy to guess the plaintext by the ciphertext, And the replacement method is an effective and

Javascript binary computation tips _ javascript skills

Some tips on binary operations in javascript are provided to share with you, hoping to help you 1. Original code, reverse code, and complement code, positive and negative subtraction to complement code addition Javascript uses a 32-bit binary

Java language basics

Java language basics Output Error information and debugging information Package com;Public class Msj {Public static void main (String [] args ){The System. out. println ("main () method is running. ");// Output error messageSystem. err. println

Java-continue to seek help from the second wave. The Great God can write this Javamd5 method into a php version. the encryption results must be consistent. thank you!

I went on to ask for help from the second wave. The big God was able to write a php version of this Javamd5 method, and the encryption results were consistent. thank you. the first wave was written by a talented person, but the encryption results

Detailed analysis of php encryption and decryption function authcode usage

The authcode function can be said to have made significant contributions to the PHP field in China. Including kangsheng's own products, and most Chinese companies that use PHP use this function for encryption. authcode uses the exclusive or

Java bit operations, Java operations

Java bit operations, Java operations One Java bit operation 1. Representation Method: In Java, the binary number is represented by a complement. The highest bit is the symbol bit, the positive number is 0, and the negative number is 1. The following

10 classic algorithms in the graphic algorithm Field

10 classic algorithms in the graphic algorithm Field FigureAlgorithm10 typical algorithms in the field Author: July February 14, 2011.Refer:Wikipedia, 10 classic Algorithm Research Series in this blogArticle. Bloggers:1. This article includes

Game Theory (I): Nim games

From today on, I will use a series Article This section describes the basic knowledge of game theory, which is mainly used in Oi. Of course, I have a superficial understanding of game theory, and the style of my writing has always been a "Personal

Poj 1222 extended lights out (Gaussian elimination element)

Http://poj.oRG/problem? ID = 1222 First paste a link Http: // blog.Csdn.net/u013081425/artiCLE/details/24248247 Enumerate the status of the first row and test it. If the last row is 0, this solution is feasible. Another method is Gaussian

Full introduction to DDB and DIB bitmap programming in Visual C ++

Full introduction to DDB and DIB bitmap programming in Visual C ++Source: Skynet 1. Basic Concepts First, we will explain the concept of Bitmap and palette with common statements.We know that all colors in nature can be composed of red, green, and

[Nim game and SG function]

Nim gamesNim games are one of the most classic models in game theory ?), It has simple rules and the conclusion that there is no beautyNim games are a kind of combinatorial games. Specifically, they belong to impartial combinatorial games (ICG ). An

Basic C language problems

What is the difference between "" and <> when a header file is referenced in C? The C language compiler uses some directories to store public header files. If you use <>, you can only find the header files in the public directory. If you use "",

Online Game plug-ins (2)

   3. How to analyze the intercepted packets? First, we will save the packet intercepted by WPE as a text file, and then open it, then we will see the following data (here we will explain the data sent by the PK store client in jinyongqun Xiaoxiao

Nim game/SG function (Game Theory)

Nim game is one of the most classic models in game theory ?), It has simple rules and the conclusion that there is no beauty Nim games are a kind of combinatorial games. Specifically, they belong to impartial combinatorial games (ICG ). An ICG game

Bitwise operators and Their Applications

I. Six operators in C language: & Bitwise AND | By bit or ^ Bitwise OR ~ Invert > Right shift  1. bitwise AND OPERATION Bitwise AND operator "&" are binary operators. Its function is the binary phase corresponding to the two numbers involved in the

In-depth understanding of bitwise XOR Operators

The two values involved in the calculation. If the two corresponding bits are the same, the result is 0. Otherwise, the result is 1. That is: 0 ^ 0 = 0, 1 ^ 0 = 1, 0 ^ 1 = 1, 1 ^ 1 = 0 Example: 10100001 ^ 00010001 = 10110000 0 ^ 0 = 0 0 ^ 1 = 1 0

HDU 3395 special fish (Bipartite Graph)

It seems a little pitfall. I open the array to 1010, and the result times out. I changed it to 101! Bored !!! "XOR" appears in the question. I didn't understand it when I read the question. Later, Baidu gave me an explanation of "different or ~~~~ A

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