On 02/03/15 15:46, Edward Ned Harvey (lopser) wrote:
I happen to know a couple of things about signatures:
Signature recognition is done using the same tech as biometrics, and it's surprisingly
good. I like to use BioWallet as an example - you use your finger to "sign"
the screen of your phone to unlock a secure wallet. If I hand my phone to someone and
tell them my password, they can't get in. Even if I give them a piece of paper with my
signature on it so they can attempt forgery, they still can't get in, because they sign
the wrong area of the screen, or going too slow or too fast. But if I give them a video
of me signing (or I sign with them watching) then with some practice they can forge my
signature and get in. I very rarely have my signature rejected by the system (I guess
about 1% of the time), and the other person has a very difficult time trying to fool the
system, even when they're given every advantage and practice.
While it certainly has some merit, have you seen the digital signature
pads in shops that use them? I know that with such a system in place
for verifying cards they'd be incentivised to keep them well maintained
etc, but I can picture lots of hassle as the device slowly degrades in
reliability.
Part of me also wonders about people with medical conditions etc. If I
break my right wrist, I'm now stuck unable to pay for anything? Awesome!
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