md5 key

The principle is as follows, if: Encryption PlainText: 1010 1001 Key: 1110 0011 Ciphertext: 0100 1010 The ciphertext 0100 1010, the decryption of the need and key can be different or down Decrypt Ciphertext: 0100 1010 Key: 1110 0011 PlainText: 1010 1

The specific sample code for the PHP cryptographic decryption function Authcode is as follows: Parameter interpretation $string: Clear Text or redaction $operation: Decode means decryption, other means encryption $key: Key $expiry:

Who can write a PHP cryptographic decryption function, can be customized encryption decryption key, thank you Reply content: Who can write a PHP cryptographic decryption function, can be customized encryption decryption key, thank you I have

Change the authcode in DX to the JS version. difficult conversion & nbsp; parameter explanation & nbsp; $ string: & nbsp; plaintext & nbsp; or & nbsp; ciphertext & nbsp; $ operation: DECODE indicates decryption, others indicate encryption & nbsp;

Now there are various types of verification codes. I personally think that the verification code is for users to see, so it is easy. What interference codes, skews, and complex backgrounds are all a kind of torture to users. The website verification

function I_array_column ($input, $columnKey, $indexKey =null) { if (!function_exists (' Array_column ')) { $columnKeyIsNumber = (Is_numeric ($columnKey))? True:false; $indexKeyIsNull = (Is_null ($indexKey))? True:false; $indexKeyIsNumber =

Using Imagick in PHP to convert PDFs into pictures, PHP Manual, the description of Imagick, is really concise, each member function, click Open to see the following text:Copy CodeThe code is as follows:WarningThis function was currently not

User Login Cookie Information security one or two, cookie information security We all know that after the user login, the user information will generally choose to save in the cookie, because the cookie is to save the client,and cookies can be

Find the corresponding encryption function of the decryption function. this post is finally edited by xuzuning from 2013-02-21:07:35. now the read key function is as follows. request the corresponding encryption function & nbsp; authcode (& nbsp; $

ePRO Online payment Platform PHP interface code, easy Bao Online payment This code refers to from Hanshunping 149 video After 5 speaking, need to learn a friend can refer to this code Here is the test picture: Here is the Code section: 1 Php 2 3

The enhanced Mhash function for PHP implementations This article mainly introduced the PHP implementation of the enhanced Mhash function, using the default Mhash function times wrong, found two solutions, the need for friends can refer to the

PHP implementation of the enhanced Mhash function, PHP implementation Mhash function Today, using PHP's cryptographic function Mhash, error: Fatal error:call to undefined function mhash () Mhash is a built-in function for PHP but uses an

Classic PHP Cryptographic decryption function authcode () fix code Authcode This function is used by many people, this function from the Discuz program, used to encrypt and decrypt the string, you can set the key (key) and expiration time, in many

This article mainly introduces how to use the discuz encryption and decryption function and Chinese annotations. The Code is as follows: /*** $ String plaintext or ciphertext* $ Operation encrypts the ENCODE or decrypts the DECODE* $ Key* $

1. The difference between hashing (hash) and encryption (Encrypt)A hash is the conversion of the target text into an irreversible hash string (or message digest) of the same length, whereas encryption (Encrypt) converts the target text into a

$ TD = mcrypt_module_open (mcrypt_des, '', 'ecb ',''); // use the mcrypt_des Algorithm in ECB mode.$ IV = mcrypt_create_iv (mcrypt_enc_get_iv_size ($ TD), mcrypt_rand );$ Ks = mcrypt_enc_get_key_size ($ TD );$ Key = "ery secret key"; // key$ Key =

ThisAlgorithmI don't know when it comes out. discuz uses it to record user information and store it in the cookie of the client browser. When each request is made, the server unlocksIt,Obtain the user information.CodeIs the implementation of Java,

In this way, we can use this function for many purposes, such as the token encrypted transmission and temporary password for Single Sign-On. CopyCode The Code is as follows :/** * @ Param string $ string original text or ciphertext * @ Param string

Classic PHP encryption and decryption function Authcode () fix version code, encryption and decryption authcode Many people use the Authcode function. This function comes from the Discuz program and is used to encrypt and decrypt strings. It can be

Copy codeThe Code is as follows: function authcode ($ string, $ operation = 'decode', $ key = '', $ expiry = 0 ){ $ Ckey_length = 4; // the random key length ranges from 0 to 32;// Adding a random key can make the ciphertext irregular. Even if the