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http://blog.ddian.cn/?post=923 Class ender{ private $enkey;//Key used for encryption and decryption The construction parameter is the key Public function __construct ($key = ") { if (! $key) { $this->enkey= $key; } } Set the key Public Function Set_key ($key) { $this->enkey= $key; } Private Function KeyED ($txt, $encrypt _key) { $encrypt _key = MD5 ($encrypt _key); $

This article provides a detailed analysis of encryption functions written in PHP that support private keys. For more information about how to develop a PHP System, members are often an indispensable module, and password processing is a problem that must be faced. the Mcrypt encryption library of PHP requires additional settings. many people directly use md5 () function encryption: This method is indeed safe, but because md5 is irreversible and cannot be restored, there are some inconveniences. T

? Php $ keyThisissupposedtobeasecretkey !!!; FunctionkeyED ($ txt, $ encrypt_key) {$ encrypt_keymd5 ($ encrypt_key); $ ctr0; $ tmp; for ($ i0; $ istrlen ($ txt); $ I) {if ($ ctrstrlen ($ encr $ Key = "This is supposed to be a secret key !!! "; Function keyED ($ txt, $ encrypt_key) { $ Encrypt_key = md5 ($ encrypt_key ); $ Ctr = 0; $ Tmp = ""; For ($ I = 0; $ I { If ($ ctr = strlen ($ encrypt_key) $

PHP Code class: Copy the Code code as follows: /*** Copyright (c) 2011-01 Xatudream* Xatudream All rights Reserved.* support:185390516.qzone.qq.com* qq:185390516* Author:lau version:1.01* Date:2010-08-12 09:28:32*/! Defined (' WORKSPACE ') exit ("Access Denied!");Class Md5crypt {/*** Enter description here ...* @param unknown_type $str* @return String*/Public final static function Mdsha ($STR) {$code = substr (MD5 ($STR), 10);$code. = substr (SHA1 ($STR), 0, 28);$code. = substr (MD5 ($STR),

that this commit is an external submission.How do I match the action to be performed?In token, the action name of this token is written into this token, so that, in the process of processing, the action is solved to compare on the line.I used to write the Gtoken can not reach the above mentioned in the second, today modified a bit, the function 2 plus. Personal feeling is OK.Please look at the code, feel where there is unreasonable place, also please enlighten!Encryption I was looking for a met

that this commit is an external submission. How do I match the action to be performed?in token, the action name of this token is written into this token, so that, in the process of processing, the action is solved to compare on the line.I used to write the Gtoken can not reach the above mentioned in the second, today modified a bit, the function 2 plus. Personal feeling is OK.please look at the code, feel where there is unreasonable place, also please enlighten!encryption I was looking for a me

Class Syscrypt { Private $crypt _key; constructor function Public function __construct ($crypt _key) { $this-Crypt_key = $crypt _key; } Public Function Php_encrypt ($txt) { Srand (Double) microtime () * 1000000); $encrypt _key = MD5 (rand (0,32000)); $ctr = 0; $tmp = "; for ($i = 0; $i $ctr = $

In the development of PHP system, the member part is often an essential module, and the password processing has to face the problem, PHP Mcrypt Encryption Library needs additional settings, many people are directly using the MD5 () function encryption, this method is indeed safe, but because MD5 is irreversible encryption, Unable to restore the password, so there are some inconveniences, this article describes the encryption function to support the private key, it is good to use. The code is as

) return "The user does not exist";if ($row ["Pwd"]!=md5 ($pwd)) return "Password error";Mysql_free_result ($RS);==============header to bbs=====================$member = array(' Time ' = Time (),' Username ' = $row ["username"],' Password ' = $row ["PWD"],' Email ' and $row [' email ']);$auth = Passport_encrypt (Passport_encode ($member), $passportkey);Setcookie ("Auth", $auth, ($_post["cookie"]? Time () + (int) $_post["cookie"]: 0));$forward =$_post[' forward '];if ($forward = = "") $forward =

functionKeyED ($txt,$encrypt _key)//define a keyed{ $encrypt _key=MD5($encrypt _key); $ctr=0; $tmp= ' '; for($i= 0;$istrlen($txt);$i++) { if($ctr==strlen($encrypt _key)) $ctr=0; $tmp.=substr($txt,$i, 1) ^substr($encrypt _key,$ctr, 1); $

Class Crypt { // Source: longge blog Protected $ key = ""; // Public key Private function keyED ($ txt, $ encrypt_key) { $ Encrypt_key = md5 ($ encrypt_key ); $ Ctr = 0; $ Tmp = ""; For ($ I = 0; $ I { If ($ ctr = strlen ($ encrypt_key )){ $ Ctr = 0; } $ Tmp. = substr ($ txt, $ I, 1) ^ substr ($ encrypt_key, $ ctr, 1 )

The php Encryption Class shared in this article is a php implementation class file that supports Chinese and English encryption and password decryption. If you need it, refer to it, but it is best to set the document encoding to UTF-8. The following code is saved as the MD5Crypt. class. php file. The Code is as follows: Copy code Class MD5Crypt {/*** Enter description here...* @ Param unknown_type $ str* @ Return string*/Public final static function mdsha ($ str ){$ Code

This article describes the function for generating random encryption in php. If you need it, you can refer to it. It is a custom function that is not provided by the system. The Code is as follows: Copy code Function encrypt_str ($ TXT, $ KEY){Srand (double) microtime () * 1000000 );$ ENCRYPT_KEY = md5 (rand (0, 32000 ));$ CTR = 0;$ TMP = "";$ I = 0;For (; $ I {If ($ CTR = strlen ($

// $ Key = "This is supposed to be a secret key !!! "; It is estimated that the password is overcast.$ Key = "this is a secret ";Function keyED ($ txt, $ encrypt_key){$ Encrypt_key = md5 ($ encrypt_key );$ Ctr = 0;$ Tmp = "";For ($ I = 0; $ I {If ($ ctr = strlen ($ encrypt_key) $ ctr = 0;$ Tmp. = substr ($ txt, $ I, 1) ^ substr ($ encrypt_key, $

; for ($i = 0; $i { for ($j = 0; $j { if ($str [$i]== $jia [$j]) { $results. = $yuan [$j]; Break } } } return $results; } $str = "Www.111cn.net";echo "before encrypting:". $str. " $str 1= Addcoder ($STR);echo "Encrypted:". $str 1. " $str 2= Removecoder ($str 1);echo "After decryption:". $str 2. " Example two, using Md5+base64_encode for editing and processing. The code is as follows Copy Code //www.111cn.net Function Passport_encrypt ($txt, $key) { Sra

= 0; $i { for ($j = 0; $j { if ($str [$i]== $jia [$j]) { $results. = $yuan [$j]; Break } } } return $results; } $str = "Www.111cn.net";echo "before encrypting:". $str. " $str 1= Addcoder ($STR);echo "Encrypted:". $str 1. " $str 2= Removecoder ($str 1);echo "After decryption:". $str 2. " Example two, using Md5+base64_encode for editing and processing. code is as follows nbs P; //www.111cn.net Function Passport_encrypt ($ TXT, $key) { Srand (Doubl

Class crypt{ This article source: Dragon elder brother Blog protected $key = ""; Public Private function keyed ($txt, $encrypt _key) { $encrypt _key = MD5 ($encrypt _key); $ctr = 0; $tmp = ""; for ($i =0; $i { if ($ctr ==strlen ($encrypt _key)) { $ctr = 0; } $tmp. = substr ($txt, $i, 1) ^ substr ($encrypt _key, $