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Php implements rc4 encryption algorithm The decryption method of this algorithm can be restored by re-encryption once .. /* * Rc4 encryption algorithm * $ Pwd key * $ Data the data to be encrypted */

Kang Sheng's authcode function can be said to have made significant contributions to the Chinese PHP community. Including Kangsheng's own products, and most Chinese companies that use PHP use this function for encryption. authcode uses exclusive or

0 × 0 vulnerability Overview0 × 1 code parsing0 × 2 PoC 0 × 0Vulnerability Overview Xiuno implements a plug-in that uses the uc interface to log on to the uc center. The uc plug-in is not enabled for xiuno by default. When the uc plug-in is not

First, I am based on the achievements of my predecessors. Briefly describe the server situation.The target is the registration information and photo server of two thousand people. The website server and the photo storage server are both independent

Brief description:The/user/UserLogin. asp file of the old Y Document Management System v2.5 sp2 has an SQL injection vulnerability, which allows malicious users to obtain any data in the database through the vulnerability. In addition, the

----binary to 16 binaryfunction Binarytohex (strbinary:string): string;VarVd:byte;I:integer;vhextstr:string;Vp:pchar;Vlen:integer;BeginVLen: = Length (strbinary);If VLen mod 4 > 0 ThenBeginSetLength (Vhextstr, VLen Div 4 + 1);VLen: = VLen Div 4 +

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

[Problem description]From left to right, 4 fine column a,b,c,d are placed sequentially. A column with n (nInput: The first row is the total number of disks on the D column, and the second row is the sequence of the lower-to-upper disk on the

This article introduces a piece of code for user login and verification implemented in php. the login and database query are not separated. If you need a friend, you can refer to the simple login class for learning, login and database query are not

The Stringgrid component is used to create a grid of display strings similar to spreadsheets. It simplifies the manipulation of strings and related objects in tables. The Stringgrid component provides many properties that control the idea of a

"' Title description 1, the input string is added and decrypted, and output. 2 The encryption method is: When the content is the English letter is replaced with the letter, and the letter is changed case, such as the letter A is replaced by B, the

Code Copy CodeThe code is as follows: /* * RC4 encryption algorithm * $pwd Key * $data the data to be encrypted */ function RC4 ($pwd, $data)//$pwd key $data need to encrypt string { $key [] = ""; $box [] = ""; $pwd _length = strlen ($PWD); $data

The functions of these two functions are exactly the opposite of the CHR function, which returns characters from the specified ASCII value and the Ord () function returns the ASCII value of the first character of the string. Understand that this

ALICTF2016FlappyPigWriteUp (customs clearance policy of the winning team FlappyPig) (2) 9. uglycode The address for calling the function is calculated in the following way, but a1 = 2, so you can manually calculate the jump address. There are

If the ASCII code is greater than 0xa0, it is half Chinese; learn about substr (), Mb_substr (), Ord (). The encoding format used now is UTF8,GBK,GBK2312,BIG5. GBK is the upgrade of GBK2312. Now I have encountered in the development of the basic is

Adding a random key makes the ciphertext irregular. even if the original text and the key are exactly the same, the encryption results will be different each time, increasing the difficulty of cracking. Well, a very good php string encryption

Use cookies to check whether a user is logged on. is it secure? Use cookies to check whether a user is logged on. is it secure? $ Cookies & nbsp ;=& nbsp; & nbsp; $ _ COOKIE ["wordpress_logged_in _". md5 ("http: // localhost uses cookies to check

One is the post request function of curl, which is mainly used for api development on various platforms to process request interfaces. if you have multiple platforms and want to transmit data between them, this function is absolutely useful. One is

Among the three white hat challenges, I am Li reei. I am looking for the Han Mei Series 3 -- writeup to enter and find the index. php can be both logged on and registered. if you try admin/admin, you can log on. later, it was confirmed that others

PHPHeader("content-type:text/html; CHARSET=GBK ");>PHP//$a =authcode ($_post[' content '), "DECODE");$a=$_post[' Content '];$a=authcode ($a, "DECODE"); Echo $a;functionAuthcode ($string,$operation= "ENCODE",$key= "",$expiry= 0) { $ckey _length= 4;