3 ms·
> Biometrics is not transmitting a picture of a fingerprint, it’s presenting your hand. What would this "hand data" look like? A 3D model of a hand MRI or X-Ra
by zzma 6y ago
> Biometrics is not transmitting a picture of a fingerprint, it’s presenting your hand.
What would this "hand data" look like? A 3D model of a hand MRI or X-Ray?
Based on my understanding, in any form of biometric authentication, some amount of static data (i.e. the biometric database is not receiving a secure, updating feed of the state of your hand/body) is stored on the server and compared with the data transmitted for authentication. Biometrics change (fingerprints can be rubbed off from gardening, DNA mutates, etc.), so this static biometric data is something that is mostly environment-invariant.
If someone can compromise your "full hand scanner" or compromise the biometric database (which will inevitably happen), then you are compromised for life, since you cannot change your hand.
- Spivak 6y ago> If someone can compromise your "full hand scanner" or compromise the biometric database (which will inevitably happen), then you are compromised for life, since you cannot change your hand. Suppose this happens. The world now knows all of your fingerprints. And at some point in the future you walk up to the desk of a datacenter where there's a security guard who phyiscally takes your hand, inspects it, and places it on the scanner. Can someone other than you pass this check? Biometrics are a hard, mostly unsolved the problem, because the hard part is replacing the human security guard who verifies that you're scanning a real person's hand. For not super security sensitive applications TouchID, FaceID, and friends are good enough because most people aren't in Face Off or Mission Impossible.