谁来帮我看看，我想用C#写这段AS代码

最近想写个网页游戏外挂，结果游戏加密了，反编译了，FLASH是如下代码
可惜我写的方法，读取还是乱码，请高手帮我看看测试地址：http://s19.mm.kunlun.com/index.php?act=login.c_start
正常的返回：<?xml version="1.0" encoding="UTF-8"?>
<root><login.init/></root>
<!--0.0024120807647705 -->
目前更改了加密，所有数据都采用流的方式传输了，这是关键加密方法，对AS3不熟悉，写法可能有误，总是不出正确结果
其FLASH的发送方式更改成 URLLoaderDataFormat.BINARY
POST 和 GET 后的数据，用此函数加密，和解密，请高手指点一下
    import flash.utils.*;    public class ImageBox extends Object
    {        public function ImageBox()
        {
            return;
        }// end function        public static function save(data:String) : ByteArray
        {
            var _loc_2:* = new ByteArray();
            _loc_2.writeUTF(data);
            _loc_2.compress();
            var _loc_3:* = new ByteArray();
            var _loc_4:uint = 0;
            while (_loc_4 < 10)
            {
                
                _loc_3.writeUnsignedInt(Math.floor(Math.random() * int.MAX_VALUE));
                _loc_4 = _loc_4 + 1;
            }
            _loc_3.writeUnsignedInt(_loc_2.length);
            _loc_3.writeBytes(_loc_2);
            _loc_4 = 0;
            while (_loc_4 < 10)
            {
                
                _loc_3.writeUnsignedInt(Math.floor(Math.random() * int.MAX_VALUE));
                _loc_4 = _loc_4 + 1;
            }
            return _loc_3;
        }// end function        public static function open(data:ByteArray) : String
        {
            var temp:ByteArray;
            var str2:String;
            var str:String;
            var data:* = data;
            temp = new ByteArray();
            data.position = 0;
            data.endian = Endian.LITTLE_ENDIAN;
            temp.endian = Endian.LITTLE_ENDIAN;
            var i:uint;
            while (i < 10)
            {
                
                data.readUnsignedInt();
                i = (i + 1);
            }
            str2;
            i;
            while (i < data.length)
            {
                
                str2 = str2 + " " + int(data[i]).toString(16);
                i = (i + 1);
            }
            trace(str2);
            var lenth:* = data.readUnsignedInt();
            trace("lenth:" + lenth);
            try
            {
                data.readBytes(temp, 0, lenth);
            }
            catch (e:Error)
            {
                throw new Error("length:" + data.length + "  data:" + str2);
                try
                {
                }
                temp.uncompress();
            }
            catch (e:Error)
            {
                throw new Error("length:" + data.length + "  data:" + str2);
                try
                {
                }
                str = temp.readUTF();
            }
            catch (e:Error)
            {
                throw new Error("length:" + temp.length);
            }
            return str;
        }// end function    }