PHP如何使用AES加密和解密

 1 <?php
 2 
 3 class Aes
 4 {
 5     public $key = ‘‘;
 6     public $iv = ‘‘;
 7     public $method = ‘‘;
 8 
 9     public function __construct($config)
10     {
11         foreach ($config as $k => $v) {
12             $this->$k = $v;
13         }
14     }
15 
16     //加密
17     public function aesEn($data)
18     {
19         return base64_encode(openssl_encrypt($data, $this->method, $this->key, OPENSSL_RAW_DATA, $this->iv));
20     }
21 
22     //解密
23     public function aesDe($data)
24     {
25         return openssl_decrypt(base64_decode($data), $this->method, $this->key, OPENSSL_RAW_DATA, $this->iv);
26     }
27 }
28 
29 $config = [
30     ‘key‘ => ‘reter4446fdfgdfgdfg‘, //加密key
31     ‘iv‘ => md5(time() . uniqid(), true), //保证偏移量为16位
32     ‘method‘ => ‘AES-128-CBC‘ //加密方式  # AES-256-CBC等
33 ];
34 $obj = new Aes($config);
35 $res = $obj->aesEn(‘admin@123‘);//加密数据
36 echo $res;
37 echo ‘<hr>‘;
38 echo $obj->aesDe($res);//解密