PHP如何使用AES加密和解密
AES加密在php5的版本中使用的mcrypt_decrypt 函数,该函数已经在php7.1后弃用了,取而代之的是openssl的openssl_encrypt和openssl_decrypt,并且代码也非常精简,下面是示例代码:
<?php class Aes { public $key = ‘‘; public $iv = ‘‘; public $method = ‘‘; public function __construct($config) { foreach ($config as $k => $v) { $this->$k = $v; } } //加密 public function aesEn($data) { return base64_encode(openssl_encrypt($data, $this->method, $this->key, OPENSSL_RAW_DATA, $this->iv)); } //解密 public function aesDe($data) { return openssl_decrypt(base64_decode($data), $this->method, $this->key, OPENSSL_RAW_DATA, $this->iv); } } $config = [ ‘key‘ => ‘reter4446fdfgdfgdfg‘, //加密key ‘iv‘ => md5(time() . uniqid(), true), //保证偏移量为16位 ‘method‘ => ‘AES-128-CBC‘ //加密方式 # AES-256-CBC等 ]; $obj = new Aes($config); $res = $obj->aesEn(‘‘);//加密数据 echo $res; echo ‘<hr>‘; echo $obj->aesDe($res);//解密
注意:要使用openssl相关函数必须要开启openssl扩展,否则程序报错
链接:https://www.php.cn/php-weizijiaocheng-437570.html(文章没有提示要开启openssl,不知道的人会踩坑报错)
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