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The problem is that you've got multiple passwords- one for work, one for, one for online banking, one for /., etc. You could require, for instance, that passwords be at least 12 characters long and contain at least one uppercase letter, one lowercase letter, one number, and one non-alphanumeric symbol, e.g. That weakens it a bit.Īdding a few numbers or characters should buy you a fair amount of security, for instance, "DrPepper!!!" or "DrPepper732" should be harder to guess than "DrPepper". is itself moderately secure, but I've used it for many different websites I don't really worry about too much. That said, quite a few people use stupid passwords.
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One solution may be to use toeprints instead. It's like mentioning your passwords in plaintext within every conversation you have. Therefore, the biggest problem with fingerprint authentication is that the user keeps leaving their key everywhere they touch. With any authentication, the important thing is that it be easy to produce the key and make it very hard to fake it. I also don't have a large sample set to help refine that formula - maybe having two whorls or two similar loops or some other combo never happens. I never worked in the field, but the above plan seems obvious to me. A whorl has two epicenters of a given distance. Same with a tented arch, except it will also have a triangular shape. A left loop will always be a left loop no matter the rotation, and has an apex. Measure the distances between unique points and their angles relative to each other. Focus on the most prominent one or the one ranked highest in priority. The alternative is that some prints have ridges going straight across, which doesn't sound right to me. It's been a very long time since I had studied fingerprints, and that was rather cursory.įrom what I know, every print has at least one point. The hash would be that set of coefficients for your formula. All you need is to supply a set of variable coefficients.
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I think you can create fingerprints based off of a formula. For one thing, while the angle of the print may change, the relative size will not. Then that's not the way it should be done. If you scan one thumb ten times, you get ten different hashes. But no two scans of one fingerprint are identical pixel for pixel.