<%@ Page Language="C#" %><%

     string selfKey = "<RSAKeyValue><Modulus>s5gFuTn3BHlxalPMSXeSrLZl8uABQCYklXDax21sSmq54Oit7Iw1oAh7bQCQ6D3yia04lZOtHPEr0gDDDbViu0fwdd0nZA5xm1l0wxuPapxl4dRmm1/330HqTfRtAklTFkWBE5LHBLlRc8OJvjqx7jCYAq7mZGnjEifSo/hX520=</Modulus><Exponent>AQAB</Exponent><P>5bHruyJWPU9ZK7zn4DDXfYoOp/MUDA8HK+zlzvtfr71o/z75W7YDaS9xOkusLxlDn5Z5mpx0DUjxi+OpO6FAYQ==</P><Q>yClC8S/PprryMEDCAA3LNnZRb+eKSNd725WlUGMInRvDKJzF7Yic/P7mbqWc7Hw69R9MpaTcuveBNGmr6ESyjQ==</Q><DP>m1q5W7qfpZwTbbe5BTNDrI9B1mpcNsO7UARMcrAmSdDMQUcwlM0IhY4nAQzJipmF2VyHJwGGpK2fYcQ7ZC9uQQ==</DP><DQ>CdQM127zkUpIrhnf7MTAn7H7mbUS0zTRfhzA+0uBlsVQNeRMy7cTjlCt2+0B4ZLQCk05JEEOHZgdngc6S7Nj2Q==</DQ><InverseQ>KrBTzGAbtHbiNmH7zyb+Sx7IQjM9i311cDgL9jD9jmDbBumCBm/4B/NiANPW8Xq7zNePqEvNHRpV2pvbWbQE0g==</InverseQ><D>AJUTG60k8GZGaF5aMLjLCHVU8ksopeEZyERD6Vag/cLH1INcoQI5YEn2wH06ew5MXYbqwo1mh8v+ZOFswHwglFJ8FC2D234+tIMxYisPkX5e6eNHHuxsw3xK/tY7BGPNr2UmNpZAc3bTi9FIQkT2DiSWwLRpI52oDdVDmORWdEE=</D></RSAKeyValue>";

     string product = Request["product"];

     string version = Request["version"];

     string platform = Request["platform"];

     string license_key = Request["license_key"];

     string machine_id = Request["machine_id"];

     byte[] returnBit = null;

     try

     {

         using (System.Security.Cryptography.RSACryptoServiceProvider rSACryptoServiceProvider = new System.Security.Cryptography.RSACryptoServiceProvider())

         {

             rSACryptoServiceProvider.FromXmlString(selfKey);

             license_key = Encoding.ASCII.GetString(rSACryptoServiceProvider.Decrypt(Convert.FromBase64String(license_key), true));

             returnBit = rSACryptoServiceProvider.SignData(Encoding.ASCII.GetBytes(license_key + machine_id), new System.Security.Cryptography.SHA1CryptoServiceProvider());

         }

     }

     catch (Exception)

     {

         return;

     }

     System.Runtime.Serialization.Formatters.Binary.BinaryFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();

     formatter.Serialize(Response.OutputStream, product, null);

     formatter.Serialize(Response.OutputStream, DateTime.Now.AddYears(), null);

     formatter.Serialize(Response.OutputStream, returnBit, null);

     Response.ContentType = "text/html";

     Response.End();

 %>