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

PHP如何使用AES加密和解密

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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