The moment the iOS 7 Untethered Jailbreak is introduced for iOS devices the first thing which came to our minds straight away that who will crack down the Biometric Kit of the Apple that is TouchID. And it seems that we have already the answer for this. As we have the TouchID Cydia tweak to lock / unlock apps for iPhone.
The developer of Cydia tweaks for instance SBRotator, CallBar and few others has identified the way to take the benefit of what the Apple says is the feature having a “very high level of security” and develop another tweak that requires iOS device users to authenticate his/her identification employing TouchID just before opening the protected apps or folders.
Currently Apple restricts the Touch ID use only for device unlocking as well as authenticating iTunes apps purchases. There is no real way for 3rd-party developers to work with the Touch ID for their own apps authentication.
The dialogue box will appear just before the user is open the protected app just like how the Apple uses the same feature to allow users to unlock the device and doing the iTunes purchases.
In this given teaser video, Limneos demoes launching the specific apps on his iPhone 5s, where an alert is pops asking to “give me the finger.” If the TouchID authenticated successfully, the restricted app is opened up, otherwise the same alert appears again.
Apple states that the TouchID actually stores the fingerprint’s mathematical representation in the encrypted way in a Secure Enclave of A7 chip’s. While the same to be involved in this jailbreak tweak from the security point of view, we are thinking it uses a high level framework to get access to the TouchID feature, that does not have the access to genuine fingerprint data.