openssl x509 -in aps_development_mms_notif.cer -inform DER -out aps_developer_identity.pem -outform PEM
openssl pkcs12 -nocerts -out APSCertificates.pem -in Certificates.p12
openssl pkcs12 -export -in aps_developer_identity.pem -out aps_developer_identity.p12 -inkey APSCertificates.pem
openssl x509 -in aps_production_mms_notif.cer -inform DER -out aps_developer_identity.pem -outform PEM
openssl pkcs12 -nocerts -out APSCertificates.pem -in Certificates.p12
openssl pkcs12 -export -in aps_developer_identity.pem -out aps_developer_identity_mms_prod.p12 -inkey APSCertificates.pem
http://stackoverflow.com/questions/3142095/add-iphone-push-notification-using-asp-net-server