<?php class EasyAESCrypt { private $iv; private $key; private $bit; //Only can use 128, 256 function __construct($key, $bit = 128, $iv = "") { // gen key if($bit == 256){ $this->key = hash('SHA256', $key, true); }else{ $this->key = hash('MD5', $key, true); } // gen iv if($iv != ""){ $this->iv = hash('MD5', $iv, true); }else{ $this->iv = chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0); //IV is not set. It doesn't recommend. } } function encrypt($str) { if(version_compare(PHP_VERSION,'7.0.0','ge')) { return $this->opensslEncrypt($str); } else { return $this->mcryptEncrypt($str); } } function decrypt($str) { if(version_compare(PHP_VERSION,'7.0.0','ge')) { return $this->opensslDecrypt($str); } else { return $this->mcryptDecrypt($str); } } private function opensslEncrypt($str) { $data = openssl_encrypt($str, 'AES-128-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv); return base64_encode($data); } private function opensslDecrypt($str) { $decrypted = openssl_decrypt(base64_decode($str), 'AES-128-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv); return $decrypted; } private function mcryptEncrypt($str) { //Open $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, ''); mcrypt_generic_init($module, $this->key, $this->iv); //Padding $block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); //Get Block Size $pad = $block - (strlen($str) % $block); //Compute how many characters need to pad $str .= str_repeat(chr($pad), $pad); // After pad, the str length must be equal to block or its integer multiples //Encrypt $encrypted = mcrypt_generic($module, $str); //Close mcrypt_generic_deinit($module); mcrypt_module_close($module); //Return return base64_encode($encrypted); } private function mcryptDecrypt($str) { //Open $module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, ''); mcrypt_generic_init($module, $this->key, $this->iv); //Decrypt $str = mdecrypt_generic($module, base64_decode($str)); //Get original str //Close mcrypt_generic_deinit($module); mcrypt_module_close($module); //Depadding $slast = ord(substr($str, -1)); //pad value and pad count $str = substr($str, 0, strlen($str) - $slast); //Return return $str; } }
剩余部分在百度网盘 提取码:y2d9
本插件来源GitHub