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Signed-off-by: j502647092 <jtb1@163.com>

ThinkPHP/Library/Think/Crypt.class.php

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+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+namespace Think;
+/**
+ * 加密解密类
+ */
+class Crypt {
+
+    private static $handler    =   '';
+
+    public static function init($type=''){
+        $type   =   $type?:C('DATA_CRYPT_TYPE');
+        $class  =   strpos($type,'\\')? $type: 'Think\\Crypt\\Driver\\'. ucwords(strtolower($type));
+        self::$handler  =    $class;
+    }
+
+    /**
+     * 加密字符串
+     * @param string $str 字符串
+     * @param string $key 加密key
+     * @param integer $expire 有效期（秒） 0 为永久有效
+     * @return string
+     */
+    public static function encrypt($data,$key,$expire=0){
+        if(empty(self::$handler)){
+            self::init();
+        }
+        $class  =   self::$handler; 
+        return $class::encrypt($data,$key,$expire);
+    }
+
+    /**
+     * 解密字符串
+     * @param string $str 字符串
+     * @param string $key 加密key
+     * @return string
+     */
+    public static function decrypt($data,$key){
+        if(empty(self::$handler)){
+            self::init();
+        }
+        $class  =   self::$handler;         
+        return $class::decrypt($data,$key);
+    }
+}