3 ms·
Reading the linked PDF: > To counter both digital and physical spoofs, the TrueDepth camera randomizes the sequence of 2D images and depth map captures, and pr
by jsjohnst 9y ago
Reading the linked PDF:
> To counter both digital and physical spoofs, the TrueDepth camera randomizes the sequence of 2D images and depth map captures, and projects a device-specific random pattern.
and
> An additional neural network that’s trained to spot and resist spoofing defends against attempts to unlock your phone with photos or masks.
It's effectiveness is yet to be seen, but the implementation details counter all the points you made.
- Sir_Cmpwn 9y agoI just honestly don't believe it could be effective. The randomized pattern could be detected with an infared camera, and neural nets are easily fooled.
- URSpider94 9y agoIf it’s anything like TouchID, the sensor authenticates itself to the secure enclave with a unique private key burned into ROM. Any data not signed by this key (possibly even countersigned with a real-time code from the secure enclave to prevent replay attacks) will be rejected. Just ask anyone who replaced their home button on an iPhone with TouchID.