ASP.NET 地址栏参数加密

//加密要传递的参数

string Id=Convert.ToBase64String(System.Text.Encoding.Default.GetBytes("aa12")).Replace("+","%2B");

Response.Write("加密字符为：" +Id+"<br>");

Response.Redirect("Default.aspx?id="+Id);

//解密

string Id=System.Text.Encoding.Default.GetString(Convert.FromBase64String(Request.QueryString["id"].ToString().Resplace("%2B","+")));

 Response.Write("解密字符为：" + id+"<br>");