Re: Well you cannot make this secure
Why would the resolution of the reader matter? If you have good enough prints on the phone (glass is good like that) you could make a high resolution fingerprint from it
Nope. There is always a delta between the original and a copy unless you go through very controlled conditions of replication, a casually made copy won't work. Low res readers accept a fair degree of noise from a read, whereas a high res reader is FAR more picky. The stuff you see on TV where someone takes a print off a glass and uses it to open a door lock? Not happening with a high res reader.
A high res reader does not only see ridges but also pores, abrasions, dust, nicotine stains - the works. That's also why they are only used in high secure situations because they are at times a &^%$ pain to pass (classic example is problems when it rains and people's hands are moist), and over the years I've seen most of these replaced with contactless vein pattern readers, the preferred ones bases on Fujitsu chips which do palm reading (but, as yet, don't tell your future in the process). Hitachi makes devices that read finger vein patterns which is also an interesting approach. Both do not leave any residue, nor is it easy to even record, let alone clone such pattern. Anyway, I'm digressing.
Last but not least, most of the high end readers also tend to read capacitively (absorbed radio energy), and a gummi finger won't even register on those.
Biting the hand that feeds IT
