Quote from: stuffokator on March 14, 2018, 09:29:25 PM

Hi everyone,

Face Id feature is a new trend in the smartphone world. I was thinking is there a mobile wallet that can use face id instead of 12 words seed?

Basically, I would like to have something like this:

The wallet app scans the face and extracts its id
Then it uses this id to generate an appropriate seed
Finally the wallet derives the keys from the seed as usual

So, as you can see, it would be very convenient to restore the bitcoin wallet just by using your face.

Hope all this makes sense.

what happens when i scan your face while we're riding on the tube? Tongue

biometric authentication is bad news---same goes for biometric seed generation for the same reasons. if it only takes a body part to impersonate you and steal all your money, then you open yourself up to a variation of the $5 wrench attack:

it's just a matter of beating you into telling which body part.

best case: armed robbers wrench attack you, you give up the biometric auth, they sweep the funds there.
worst case: armed robbers wrench attack you, you give up the biometric auth, they remove the body part in question. Shocked