> The problem is that while a fingerprint is unique, it isn't secret.
Is a fingerprint even guaranteed to be unique?
And, even if they are unique... What resolution does a typical
fingerprint scanner operate at?
Assuming a 2000 dpi 8 bit grayscale scanner, then we're looking at a
resolution of approximately 2000x1000x256 = 512 million possible images.
We have more than 6 billion people on the planet, so by the pigeon hole
principle, at least 2 people will have the same fingerprint rendered by