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A set of PHP reversible encryption and decryption algorithm instance code. For most password encryption, we can use md5, sha1, and other methods. This can effectively prevent data leaks, but these methods only apply to data encryption that does not

If you have an environment, you can run it. Test data $ str1 = "1149395524", $ str2 = "4255390370" // Xor Function my_xor ($ text, $ key) { $ I = 0; $ Encrypted = ""; Foreach (str_split ($ text) as $ char ){ $ Encrypted. = chr (ord ($ char) ^ ord (

0x00 PrefaceLanded on the Codewar platform brush problem, by the great God abuse very miserable do a few questions feel some harvest, record a0x01 Caesar EncryptionThis program once wrote, remember to use the Chr () Ord () function to determine the

Test data $str1= "1149395524", $str 2 = "4255390370" Xor function My_xor ($text, $key) { $i = 0; $encrypted = ""; foreach (Str_split ($text) as $char) { $encrypted. = Chr (ord ($char) ^ ord ($key {$i + +% strlen ($key)})); } return $encrypted; }

PHP Common processing static Operation class In detail a PHP development often used to handle the operation of the class-I hope you add a lot-perfect this operation class 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21st 22 23

For most password encryption, we can use md5, sha1, and other methods. This can effectively prevent data leaks, but these methods only apply to data encryption that does not require restoration. For the information to be restored, a reversible

This article to: The new Too Current network blog/** * [Encrypt data] * @e-mial [email protected] * @TIME 2017-04-07 * @WEB http://blog.iinu.com.cn * @param [data] $data [to Encrypted data] * @param [key] $key [the only way to decrypt]

Code The code is as follows Copy Code function Encrypt ($data, $key){$key = MD5 ($key);$x = 0;$len = strlen ($data);$l = strlen ($key);for ($i = 0; $i {if ($x = = $l){$x = 0;}$char. = $key {$x};$x + +;}for ($i = 0; $i

For most cryptographic cryptography, we can use MD5, SHA1 and other methods. Can effectively prevent data disclosure, but these methods apply only to data encryption that does not need to be restored. For information that needs to be restored, a

The encryption algorithm is as follows: Copy Code code as follows: function Encrypt ($data, $key) { $key = MD5 ($key); $x = 0; $len = strlen ($data); $l = strlen ($key); for ($i = 0; $i { if ($x = = $l) { $x = 0; } $char. =

  For most password encryption, we can use MD5, SHA1 and other methods. Can effectively prevent data disclosure, but these methods apply only to data encryption that does not need to be restored. For information that needs to be restored, a

Remember college days, participate in the school's programming contest, in which the problem is:Write a function that converts decimal into 16 binary.Looks very simple a problem, finally unexpectedly did not realize, think all feel ashamed ah, go

In Python, there is code that can implement this function directly str2 = "Hello nice to meet Print (Str2.title ())There are a couple of similar features Convert #将字符串中的大写转化成小写 lowercase to uppercase print (Str2.swapcase ()) #就第一个首字母大写 Other

PHPclassMypass {Static functionEncrypt$data,$key){ $key=MD5($key); $x= 0; $len=strlen($data); $l=strlen($key); for($i= 0;$i$len;$i++){ if($x==$l){ $x= 0; } $char.=$key{$x}; $x++; } for($i=

Vulnerability Analysis of an attack Tracing System (affecting customers' core network segments and sensitive monitoring information) The device is deployed on the Intranet. the device is directly connected to the host device monitored on the

1. Introduction of Loader use Think\loader;2. Export method:/** * Excel Table Export * @param string $fileName file name * @param array $HEADARR header name * @param array $data data to be exported * @author static 7*/functionExcelexport ($fileName=

For most password encryption, we can use MD5, SHA1 and other methods. Can effectively prevent data breaches, but these methods apply only to data encryption that does not need to be restored. For information that needs to be restored, a reversible

The encryption algorithm is as follows: Copy CodeThe code is as follows: function Encrypt ($data, $key) { $key = MD5 ($key); $x = 0; $len = strlen ($data); $l = strlen ($key); for ($i = 0; $i { if ($x = = $l) { $x = 0; } $char. = $key {$x}; $x + +;

Our commonly used MD5 algorithm is not reversible theoretically, but there are powerful methods can be MD5 to calculate out, just according to the complexity of the time required to be different, but sometimes we want to encrypt the transmission of

PHP reversible encryption and decryption algorithm program code. Our commonly used md5 algorithm is irreversible theoretically, but there is a powerful way to calculate the md5 algorithm, but it only takes time based on the complexity, however,