3 ms·
Its more than a hash since it needs to be able to match similar inputs (face at different angle, partially obscured), its probably just a bunch of raw measureme
by Polylactic_acid 6y ago
Its more than a hash since it needs to be able to match similar inputs (face at different angle, partially obscured), its probably just a bunch of raw measurements but not actually a photo of your face.
The upside is its only stored on the device itself and not in a master database and also isn't used for any remote authentication so can't be exploited by hackers over the internet.
- SpaceRaccoon 6y agoTheory: it can be a hash of measurements of the face, rounded to a certain precision.
- 10000truths 6y agoRounding drastically reduces the search space of possible values. A cryptographic hash is no good if you know that the original message can only take on a finite set of values that can easily be enumerated.