2 Replies Latest reply: Nov 29, 2013 2:11 PM by thisismyusernameok
thisismyusernameok Level 1 Level 1

I suspect it stores our app store icloud credentials in the secure enclave in the A7 and when a fingerprint match is found it accesses the icloud credentials and logs in to the app store with them. This is my best guess on how they could do it securely, i ve looked all over google for the past 2 hours and couldnt find any mention about how this feature actually works, and apple's support pages arent any help


iPhone 5s, iOS 7.0.4
  • KHDD Level 1 Level 1

    As far as I'm aware, your iPhone stores your Apple ID credentials in a secure place in system memory, with a good level of encryption. When a user is asked to authorize a purchase, it will ask for your fingerprint. When this is read and is authorized with the information already kept about your print in the sealed off section in the A7 processor, the phone is given authorization to use your credentials to authorize a purchase on the store. Nothing at all to do with your print is ever sent over for use in the OS itself, only a simple 'Yes' or 'No' as to weather the given information matches up.

  • thisismyusernameok Level 1 Level 1

    This is what I presume aswell. if this is the case then there's no reason that the whole keychain couldn't be moved in there, that would be a pretty useful implementation IMO