chr ord

Sometimes in the project we need to use PHP to encrypt specific information, that is, through the encryption algorithm to generate an encrypted string, the encrypted string can be decrypted by the decryption algorithm, so that the program to process

Class ENCRYPTCALSS { var $key = 12; function encode ($txt) { for ($i =0; $i<> $txt [$i]=chr (Ord ($txt [$i]) + $this->key); } Return $txt =urlencode (Base64_encode (UrlEncode ($txt))); }

Share Two classic PHP encryption and decryption functions This article mainly introduces two classic PHP encryption and decryption functions, one is Discuz! The authcode encryption function (with detailed decomposition). one is the encrypt (

This article mainly introduces the RC4 algorithm implemented in Python. This article provides two implementation methods: Class and function. if you need it, you can use Python to implement the RC4 algorithm in your spare time. Coding UTF-8 Class

This Gamex Trojan sample was just obtained in May and is not destructive, but it is good for security analysts. Today, I will share with you the complete analysis process of this sample.ToolsApkTool, dex2jar, and DJ Java DecompilerPython2.6 write a

Python RC4 algorithm and pythonrc4 Algorithm In my spare time, I used Python to implement the RC4 algorithm. Coding UTF-8 Class Method #/usr/bin/python#coding=utf-8import sys,os,hashlib,time,base64class rc4: def __init__(self,public_key = None,ckey_

For example:>>> Print ord ('A ')97>>> Print chr (97)ANow we can start designing our case-insensitive Conversion Program:Copy codeThe Code is as follows:#! /Usr/bin/env python# Coding = UTF-8Def UCaseChar (ch ):If ord (ch) in range (0, 97,122

RC4 encryption is garbled after the problem This is what I found on the internet. RC4 Encryption Example: function Rc4_zz ($data, $pwd = "")//$pwd key $data need to encrypt string{$key [] = "";$box [] = "";$cipher = "";$pwd _length = strlen ($PWD);$

The code is as follows:Copy code  Class Uploader{Var $ _ base_dir = null;Var $ _ rel_dir = null;Var $ _ random_fname = false;Var $ _ random_fname_len = 5;Var $ _ fname_filter = null;Var $ _ ftype_filter = null;Var $ _ origin_paths = array

To find the corresponding cryptographic function of a decryption function This post was last edited by xuzuning on 2013-02-21 10:07:35 Now known as a decryption function (Readkey), the corresponding cryptographic function is function Authcode

4. built-in functions, file operations and recursion, and function RecursionI. built-in functions There are many built-in functions in Python. The following figure lists all the built-in functions. Then, I will explain some common functions. I can

//Import Public functionExcelimport () {$mimes=Array( ' Application/vnd.ms-excel ', ' Application/vnd.openxmlformats-officedocument.spreadsheetml.sheet ' ); $exts=Array( ' xls ', ' xlsx ' ); $upload=NewUpload (

Such as: >>> Print ord (' a ') 97 >>> Print Chr (97) A Here we can start to design our case conversion program: Copy Code code as follows: #!/usr/bin/env python #coding =utf-8 def ucasechar (CH): If Ord (CH) in range (97, 122):

Sometimes in the project we need to use PHP to encrypt specific information, that is, through the encryption algorithm to generate an encrypted string, the encrypted string can be decrypted by decryption algorithm to facilitate the process of

The most common applications are in user login and some API data exchange scenarios.The author contains some of the more classic PHP encryption and decryption function code, to share with you. Encryption and decryption principle is generally through

Article Title: Never run Linux commands. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. One day later, Linux

Hello Python:)Supplemental Details: Python pass-through lists, dictionaries, and so on are address-passing, without a value.Start with the Chase!Lambda expression:Example:Non-parametric version:FUN1 = lambda:123Ret1 = FUN1 ()Print (RET1)#输出123With

String functions in the PHP language are also a relatively understandable knowledge. Today we summed up nearly 12 kinds of PHP string functions, I hope that the need for friends to help, increase the reader friend's PHP Knowledge base.1. Find

File operations are often used in our daily use of Python, the following this article is mainly about the Python3 simple file operation and two simple small examples of relevant information, the article introduced in very detailed, the need for

The decryption method of this algorithm is to re-encrypt it once to restore it. if you need it, refer to the following code: The code is as follows: /* * Rc4 encryption algorithm * $ Pwd key * $ Data the data to be encrypted */ Function rc4