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2015-11-21 17:19 <wpwrak> djb is fun: "There are many choices of elliptic-curve signature systems. The standard choice, ECDSA, is reasonable if you don't care about simplicity, speed, and security."
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2015-11-21 17:21 <eintopf> wpwrak: I heard that you should not trust NIST curves
2015-11-21 17:21 <eintopf> because they work together with NSA, etc :-/
2015-11-21 17:22 <eintopf> so big companies says "oh yes we use NIST curve xy, it's a well known standard curve"
2015-11-21 17:22 <eintopf> but real users should not trust them :-/
2015-11-21 17:24 <wpwrak> hmm, i think he may go beyond just NIST curves. but i have to admit that i haven't carefully read let alone understood the article: http://blog.cr.yp.to/20140323-ecdsa.html
2015-11-21 17:28 <eintopf> wpwrak: I had a course about cryptography at my university and I don't know nothing about cryptography for sure
2015-11-21 17:30 <eintopf> but what I learned was that the deffie hellman algorithm on in german "Restklassenring"(some algebra with modulo and such things) can be adapted on elliptic-curve algebra
2015-11-21 17:31 <eintopf> and then some algorithmn to crack deffie hellman is more complex by doing it on elliptic-curve algebra
2015-11-21 17:31 <wpwrak> ECDH. About 268,000 results (0.46 seconds)  :)
2015-11-21 17:32 <eintopf> ah, the problem to crack Deffie hellman is discrete logarithmn
2015-11-21 17:32 <eintopf> https://de.wikipedia.org/wiki/Index-Calculus-Algorithmus - that was the algorithmn which you can't easily use in elliptic-curve
2015-11-21 17:33 <eintopf> something like that
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2015-11-21 17:34 <wpwrak> ah i understand it, the main advantage of EC is that you need a lot fewer bits for the same kind of operations
2015-11-21 17:35 <wpwrak> e.g., RSA is getting ridiculous, with keys sometimes getting as large as 1 kB (well, that's still mainly for the tin-hat faction, but the rest is just 1-2 binary orders of magnitude behind)
2015-11-21 17:36 <eintopf> yes, that's why it's interessting for mcu's
2015-11-21 17:36 <eintopf> smartcards
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