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The operating system by apple for mobile devices

-1 votes
1 answer
129 views

Will jailbreaking affect file system accessibility for all apps?

I find that on a jailbroken device I can access /Applications/ in a normal app from app store, although I thought due to the sandbox I shouldn't. Maybe I should write an app to determine what section …
Karl's user avatar
  • 281
3 votes
1 answer
3k views

How does Apple enforce the expiration of beta apps distributed through TestFlight

A beta app expired after a period of time. But after some investigated on the ipa file, both the certificate and the mobile provisioning profile embedded in the bundle are not expired. How can Apple …
Karl's user avatar
  • 281
13 votes
1 answer
7k views

How are Apple App Store Apps encrypted?

I know how to decrypt an iOS app use tools. How is this encryption performed? Why can iOS apps only be decrypted on a device? Is there a device-specific key used for encryption? …
Karl's user avatar
  • 281
2 votes
1 answer
5k views

Dylib can run without code sign in iOS?

I learn from somewhere dylib should be signed in iOS, otherwise dyld will refuse to execute it. But when I test the example of this post. …
Karl's user avatar
  • 281