title: I've lost the certification to generate a .p12, How I can generate a new one?
body: <p>Currently, I have one app publishes in the appStore and I don't know exactly why the push notifications are not working. Something is wrong with the .p12 file in my server because when my server try to generate a push and send it to Apple Environment, I can see next error in my log:</p>
  <blockquote>
  <p>02-27 11:42:11,868 [IOSPushNotificationSender] ERROR javapns.notification.PushNotificationManager - Delivery error: javapns.communication.exceptions.InvalidCertificateChainException: Invalid certificate chain (Received fatal alert: certificate_unknown)!  Verify that the keystore you provided was produced according to specs...</p>
  <p>2013-02-27 11:42:11,874 [IOSPushNotificationSender] ERROR camMan.server.mobile.ApplePNSSender - javapns.communication.exceptions.InvalidCertificateChainException: Invalid certificate chain (Received fatal alert: certificate_unknown)!  Verify that the keystore you provided was produced according to specs...</p>
  </blockquote>
  <p>Ok, I've tried to generate a new .p12 file but I don't remember exactly which one was the original certificate (.cer).</p>
  <p>I've tried to download the (.cer) from the provisioning profile but when I open it with keychain access, this certificate hasn't got any private key.</p>
  <p>So, I am lost, I don't know what can I do...Can I generate a new .p12 file without to have to modify any certification or whatever in my app? I don't want to upload a new version of my app in appStore...only I need to know how generate or download or whatever to set a new and valid .p12 file and send again push notifications.</p>
  <p>Also I've checked all the settings in provisioning portal and everything is Enabled,Active like others apps that I have...so I think the only problem is the .p12</p>
  <p>Also I still have the same key/paswoord of the p.12...only I've lost the CSR (.cer).</p>