https://developer.apple.com/ios/manage/certificates/team/create.action

1. Generate a Certificate Signing Request (CSR) with a public key
   • In your Programme folder, open the Dienstprogramme folder and launch Schlüsselbundverwaltung.
   • Choose Schlüsselbundverwaltung > Zertifikatsassistant > Zertifikat einer Zertifizierungsinstanz anfordern.
   • In the Zertifikatsinformationen window, enter or select the following information:
     • In the E-Mail des Benutzers field, enter your E-Mail Adresse
     • In the Allgemeiner Name field, enter your Name
     • In the Anfrage group, select the Auf der Festplatte sichern Option
     • Click Fortfahren.
   • The Zertifikatsassistent saves a Certificate Signing Request (CSR) file to your Desktop.
   • The public/private key pair will be generated when you create the Certificate Signing Request (CSR) if you use the Schlüsselbundverwaltung to create the CSR.
2. Submit the CSR through the Provisioning Portal.
   • Click the Distribution tab
   • Upload the certificate by choosing the file
   • Click Submit

http://www.openradar.me/7092640

security import priv_key.p12 -k ~/Library/Keychains/login.keychain
security import pub_key.pem -k ~/Library/Keychains/login.keychain