This blog post was authored by Austin Laugesen, a Program Manager on the Windows Phone team.
- Adam
These are the steps you can take to implement no-quota (unthrottled) push notifications for your Windows Phone app using Microsoft Push Notification Services (MPNS). Implementing no-quota push notifications means that your app won’t be restricted by a daily limit of push notifications.
- Obtain a private key from a root Certificate Authority (CA) that is a member of the Windows/Windows Phone root certificate program.
- Create a certificate signing request (CSR).
- Here is an example of how to create a CSR for Windows. Note that each CA follows a different process to create a CSR.
- Caveat: users can use different software to create CSRs.
- See IIS 8: Better certificate management and IIS 8.0 Centralized SSL Certificate Support: SSL Scalability and Manageability for info about how to store a private key in Windows using Internet Information Services (IIS).
- Sign in to Windows Phone Dev Center.
- Click the Dashboard navigation link.
![image]( "image")
- On the left side of the page, click Account.
![image]( "image")
- Click Certificates.
![image]( "image")
- Click Browse to find the .cer file you’d like to upload.
- Click Upload to upload the certificate.
- Install your root CA’s public certificate on these computers.
- Install the private key (issued by the CA) on these computers.
- SSL authentication uses these two certificates to perform mutual authentication.
- Root CA validation occurs on your computer.
When your service sends a request to the MPNS it will authenticate the MPNS with the public key, which you provided on Dev Center, with the public root CA certificate on your computer.
C#
- // The path to the certificate
- String certificate = path/to/certificate.cer;
- HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);
- // set appropriate instance variables for request object
- if (certificate != null)
- {
- request.ClientCertificates.Add(new X509Certificate(certificate));
- }
For more info about push notifications, see Push notifications for Windows Phone.