title: Is it impossible to use AWS CloudFront for downloading my private image on S3?
body: <p>I'm making a global iOS App with AWS SDK.<br>
  And there is a function for users to get image files; only if the requester is a friend of the image files' uploader.<br>
  For this function, I use AWS S3 for storage service with private access.
  And I want to use CloudFront for my users to get download files faster.</p>
  
  <p>I should set the bucket name for downloading on AWS S3 SDK, but it seems that the CloudFront does not support for this bucket name.<br>
  Is AWS CloudFront only for public things with url?</p>