Discuz! Passport 通行证整合

    // c# dz通行证密匙处理函数   
    public byte[] passport_key(byte[] btxt, string key){
        key = md5(key);
        byte[] keyAry = strToByteAry(key);
        int ctr = 0;
        byte[] tmp = new byte[btxt.Length];
        for (int i = 0; i < btxt.Length; i++){
            ctr = (ctr == keyAry.Length) ? 0 : ctr;
            tmp[i] = xor(btxt[i], keyAry[ctr++]);
        }
        return tmp;
    }

    // 针对byte的异或    
    public byte xor(byte a, byte b){
        return Convert.ToByte(a ^ b);
    }

    // 获取UNIX时间戳   
    public string time(){
        DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
        DateTime dtNow = DateTime.Parse(DateTime.Now.ToString());
        TimeSpan toNow = dtNow.Subtract(dtStart);
        string timeStamp = toNow.Ticks.ToString();
        timeStamp = timeStamp.Substring(0, timeStamp.Length - 7);
        return timeStamp;
    }

    // md5加密
    public string md5(string str){
        MD5 md5Hasher = MD5.Create();
        string re="";
        byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(str));
        for (int i = 0; i < data.Length; i++)
            re += data[i].ToString("x2");       
        return re;
    }
}

/tech/uploadfile/200702/20://www.tenwe.com/tech/uploadfile/200702/20070227024435342.rar" target=_blank>/tech/uploadfile/200702/20070227024435342.rar

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