The method of encrypting and decrypting PHP operation Cookie

This article mainly introduces PHP to implement the method of cookie encryption, involving PHP operation Cookie encryption, decryption and setup skills, with a certain reference value, the need for friends can refer to the next

In this paper, we explain how PHP implements cookie encryption. The implementation method is as follows:

The code is as follows:

<?phpclass cookie{/** * Decrypt the encrypted Cookie * * @param string $encryptedText * @return String */        private static function _decrypt ($encryptedText) {$key = Config::get (' Secret_key ');        $cryptText = Base64_decode ($encryptedText);        $ivSize = Mcrypt_get_iv_size (mcrypt_rijndael_256, MCRYPT_MODE_ECB);        $iv = Mcrypt_create_iv ($ivSize, Mcrypt_rand);        $decryptText = Mcrypt_decrypt (mcrypt_rijndael_256, $key, $cryptText, MCRYPT_MODE_ECB, $IV);    Return trim ($decryptText); }/** * Encrypt cookie * * @param string $plainText * @return String */private static function _encry        PT ($plainText) {$key = Config::get (' Secret_key ');        $ivSize = Mcrypt_get_iv_size (mcrypt_rijndael_256, MCRYPT_MODE_ECB);        $iv = Mcrypt_create_iv ($ivSize, Mcrypt_rand);        $encryptText = Mcrypt_encrypt (mcrypt_rijndael_256, $key, $plainText, MCRYPT_MODE_ECB, $IV);    Return Trim (Base64_encode ($encryptText));    }/** * Delete Cookie * * @param array $args * @return Boolean */public static function del ($args) {        $name = $args [' name ']; $domain = Isset ($args [' domain '])?        $args [' domain ']: null; return Isset ($_cookie[$name])?    Setcookie ($name, ', Time ()-86400, '/', $domain): true; }/** * Gets the value of the specified cookie * * @param string $name */public static function get ($name) {retur n Isset ($_cookie[$name])?    Self::_decrypt ($_cookie[$name]): null;    }/** * Set cookie * * @param array $args * @return Boolean */public static function set ($args)        {$name = $args [' name '];        $value = Self::_encrypt ($args [' value ']); $expire = Isset ($args [' expire '])?        $args [' expire ']: null; $path = Isset ($args [' path '])?        $args [' Path ']: '/'; $domain = Isset ($args [' domain '])?        $args [' domain ']: null; $secure = Isset ($args [' secure '])?        $args [' secure ']: 0; Return Setcookie ($name, $Value, $expire, $path, $domain, $secure); }}

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