<?php
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/**
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* PhalApi_Crypt_MultiMcrypt 多级mcrypt加密
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* 对底层的mcrypt进行简单的再封装，以便存储和保留类型
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*
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* - 依赖PhalApi_Crypt_Mcrypt进行加解密操作
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* - 支持任何数据类型的加解密
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* - 返回便于存储的字符串
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*
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* @package PhalApi\Crypt
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* @license http://www.phalapi.net/license GPL 协议
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* @link http://www.phalapi.net/
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* @author dogstar <chanzonghuang@gmail.com> 2014-12-11
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*/
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class PhalApi_Crypt_MultiMcrypt implements PhalApi_Crypt {
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/**
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* @var PhalApi_Crypt_Mcrypt $mcrypt
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*/
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protected $mcrypt = NULL;
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public function __construct($iv) {
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$this->mcrypt = new PhalApi_Crypt_Mcrypt($iv);
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}
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/**
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* @param mixed $data 待加密的数据
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*/
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public function encrypt($data, $key) {
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$encryptData = serialize($data);
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$encryptData = $this->mcrypt->encrypt($encryptData, $key);
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$encryptData = base64_encode($encryptData);
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return $encryptData;
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}
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/**
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* 忽略不能正常反序列化的操作，并且在不能预期解密的情况下返回原文
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*/
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public function decrypt($data, $key) {
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$decryptData = base64_decode($data);
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if ($decryptData === FALSE || $decryptData === '') {
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return $data;
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}
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$decryptData = $this->mcrypt->decrypt($decryptData, $key);
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$decryptData = @unserialize($decryptData);
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if ($decryptData === FALSE) {
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return $data;
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}
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return $decryptData;
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}
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}
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