I\'ve consulted many sources out there and still can\'t figure this out.
http://code.google.com/p/apns-php/wiki/CertificateCreation
Basically after I download th
The .cer file does not contain the private key, only the public one. So all of these solutions are relevant only from the computer who issued the original CSR, or from a computer where the original certificate's keypair was imported to Keychain.
If you don't have access to the private key, yiou would have to generate a new certificate. However - you do not have to invalidate the old one from Apple's certificate portal, as you may use multiple APNS certificates for the same app ID.