PHP加密解密函数详解,加密解密函数详解
分享一个PHP加密解密的函数,此函数实现了对部分变量值的加密的功能。
加密代码如下:
/* *功能:对字符串进行加密处理 *参数一:需要加密的内容 *参数二:密钥 */ function passport_encrypt($str,$key){ //加密函数 srand((double)microtime() * 1000000); $encrypt_key=md5(rand(0, 32000)); $ctr=0; $tmp=''; for($i=0;$i<strlen($str);$i++){ $ctr=$ctr==strlen($encrypt_key)?0:$ctr; $tmp.=$encrypt_key[$ctr].($str[$i] ^ $encrypt_key[$ctr++]); } return base64_encode(passport_key($tmp,$key)); }
解密代码如下:
/* *功能:对字符串进行解密处理 *参数一:需要解密的密文 *参数二:密钥 */ function passport_decrypt($str,$key){ //解密函数 $str=passport_key(base64_decode($str),$key); $tmp=''; for($i=0;$i<strlen($str);$i++){ $md5=$str[$i]; $tmp.=$str[++$i] ^ $md5; } return $tmp; }
辅助函数:
/* *辅助函数 */ function passport_key($str,$encrypt_key){ $encrypt_key=md5($encrypt_key); $ctr=0; $tmp=''; for($i=0;$i<strlen($str);$i++){ $ctr=$ctr==strlen($encrypt_key)?0:$ctr; $tmp.=$str[$i] ^ $encrypt_key[$ctr++]; } return $tmp; }
使用如下所示:
$str='作者:余浩苗;电话:13611972365;电子邮件:123cvbz@163.com'; $key='hacker'; $encrypt=passport_encrypt($str,$key); $decrypt=passport_decrypt($encrypt,$key); echo '原文:',$str."<br><hr>"; echo '密文:',$encrypt."<br><hr>"; echo '译文:',$decrypt."<br><hr>";
以上就是为大家分享的php加密解密函数,希望大家喜欢,可以应用到自己的学习中。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 English version
Recommended: Win version, supports code prompts!

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Dreamweaver Mac version
Visual web development tools

Notepad++7.3.1
Easy-to-use and free code editor

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
