title: New Private Key and provisioning profile for an iphone app update
body: <p>I use an external developer for a new version of my iphone app. Now, as the release is approaching, in order to create the final appstore build, he asked me for an updated provisioning profile. The existing I had, was expired so I created a new one from Provisioning Portal - Provisioning - Development (Tab) and send it to him.</p>
  
  <p>Problem is that now he informed me that I had to send him a new .p12 file because the newly attached provisioning profile no longer matches the private key he had on file. I've read <a href="https://appmakr.zendesk.com/entries/175966-how-to-create-and-upload-your-private-key-p12-into-your-appmakr-developer-account" rel="nofollow">this tutorial</a> and I have some questions.</p>
  
  <p>From the Certificates- Distribution tab, I have a certificate ready for download, which must have been created same day with the new provisioning profile and it expires next year so I guess I don't have anything to do here. </p>
  
  <p>So I want to ask how to create this private key file. I opened keychain access and I see that there is an iphone distribution keychain which is expiring in one year but it has a red color sentence saying "This certificate was signed by an unknown authority". If I export this and give it to the developer, is it ok ?</p>
  
  <p>Thanks
  Kostas</p>