PHP7.2中AES加密解密⽅法mcrypt_module_open（）替换⽅案
Funct。。。
直接粘代码，该类是基于消息加密解密所提供的改造⽽来，⽬前使⽤于彬彬⼤学APP接⼝token校验中。
php的mcrypt 扩展已经过时了⼤约10年，并且⽤起来很复杂。因此它被废弃并且被 OpenSSL 所取代。从PHP 7.2起它将被从核⼼代码中移除并且移到PECL中。PHP⼿册在7.1迁移页⾯给出了替代⽅案，就是⽤OpenSSL取代MCrypt.
class Aes {
private $hex_iv = '00000000000000000000000000000000'; # converted JAVA byte code in to HEX and placed it here
private $key = '397e2eb61307109f6e68006ebcb62f98'; #Same as in JAVA
function __construct($key) {
$this->key = $key;
$this->key = hash('sha256', $this->key, true);
}
/*
function encrypt($str) {
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
mcrypt_generic_init($td, $this->key, $this->hexToStr($this->hex_iv));
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
$pad = $block - (strlen($str) % $block);
$str .= str_repeat(chr($pad), $pad);
$encrypted = mcrypt_generic($td, $str);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return base64_encode($encrypted);
}
function decrypt($code) {
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
mcrypt_generic_init($td, $this->key, $this->hexToStr($this->hex_iv));
$str = mdecrypt_generic($td, base64_decode($code));
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $this->strippadding($str);
}*/
public function encrypt($input)
{
$data = openssl_encrypt($input, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->hexToStr($this->hex_iv));
$data = base64_encode($data);
return $data;
}
public function decrypt($input)
{
$decrypted = openssl_decrypt(base64_decode($input), 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->hexToStr($this->hex_iv));
return $decrypted;
}
/*
For PKCS7 padding
*/
private function addpadding($string, $blocksize = 16) {
$len = strlen($string);
$pad = $blocksize - ($len % $blocksize);
$string .= str_repeat(chr($pad), $pad);
return $string;
}
private function strippadding($string) {
$slast = ord(substr($string, -1));
$slastc = chr($slast);
$pcheck = substr($string, -$slast);
if (preg_match("/$slastc{" . $slast . "}/", $string)) {
$string = substr($string, 0, strlen($string) - $slast);
return $string;
} else {
return false;
}
}
function hexToStr($hex)
{
$string='';
for ($i=0; $i < strlen($hex)-1; $i+=2)
{
$string .= chr(hexdec($hex[$i].$hex[$i+1]));
}
return $string;
}php实例代码解密
}
/**
* @param array $data
* ⽣成每次请求的sign 加密信息
* @return string
* Author: yehui
* Date: 2019/11/19 23:33
*/
public static function setSign($data = []){
// 1 按字段排序
ksort($data);
// 2 拼接字符串数据 &
//$data = array('foo'=>'bar',
//              'baz'=>'boom',
//              'php'=>'hypertext processor');
//echo http_build_query($data);
/
//* 输出：
//      foo=bar&baz=boom&php=hypertext+processor
//*/
$string = http_build_query($data); //http_build_query — ⽣成 URL-encode 之后的请求字符串            // 3 通过aes加密
$aes = new Aes(config('app.aeskey'));
$string = $aes->encrypt($string);
// 4 最终返回加密的数据
return $string;
}
public function testAes(){
$data = [
'name'=>'yh',
'age'=>12,
];
$str = '05rIEfJkLlXQpjuUgxFgMw=='; //加密后的数据
//echo IAuth::setSign($data);//05rIEfJkLlXQpjuUgxFgMw== 加密后的数据
$aes = new Aes(config('app.aeskey'));
echo $aes->decrypt('05rIEfJkLlXQpjuUgxFgMw==');//age=12&name=yh 解密后的数据}

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