April 2015
Intermediate to advanced
556 pages
17h 47m
English
book
Cocoa Programming for OS X: The Big Nerd Ranch Guide
by Aaron Hillegass, Adam Preble, Nate Chandler
Content preview from Cocoa Programming for OS X: The Big Nerd Ranch Guide
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Receipt Validation
Mac App Store apps differ from iOS apps in one key area, however: There is no OS support for license checking. That is, without special effort on your part, there is no copy protection. If copy protection is important to you, you will need to implement receipt validation.
When purchased from the Mac App Store, an application is downloaded to the user’s system. A file containing the application receipt will be placed in the application bundle. The receipt contains the application’s bundle identifier, its version string, and a hash of the computer’s GUID. Receipts are cryptographically signed by Apple.
By verifying the information in this receipt, your application can determine whether it is authorized to run on ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.