public string Token = "www0430com"; protected void Page_Load(object sender, EventArgs e) { if (string.IsNullOrEmpty(Request.QueryString["echoStr"])) { Response.End(); } string echoStr = Request.QueryString["echoStr"].ToString(); if (CheckSignature()) { if (!string.IsNullOrEmpty(echoStr)) { Response.Write(echoStr); Response.End(); } } } private bool CheckSignature() { string signature = Request.QueryString["signature"].ToString(); string timestamp = Request.QueryString["timestamp"].ToString(); string nonce = Request.QueryString["nonce"].ToString(); string[] ArrTmp = { Token, timestamp, nonce }; Array.Sort(ArrTmp); //字典排序 string tmpStr = string.Join("", ArrTmp); tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1"); tmpStr = tmpStr.ToLower(); if (tmpStr == signature) { return true; } else { return false; } }