PHP怎样运用AES加密和解密【php教程】,PHP
AES加密在php5的版本中运用的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，而且代码也异常精简，下面是示例代码：
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class Aes
{
public $key = '';
public $iv = '';
public function __construct($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' //加密体式格局 # AES-256-CBC等
];
$obj = new Aes($config);
$res = $obj->aesEn('aaaddee44');//加密数据
echo $res;
echo '<hr>';
echo $obj->aesDe($res);//解密
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