#bitcoin-wizards on 2018-07-04 — irc logs at freenode.irclog.whitequark.org

2015-10-30 00:53 sipa changed the topic of #bitcoin-wizards to: This channel is for discussing theoretical ideas with regard to cryptocurrencies, not about short-term Bitcoin development | http://bitcoin.ninja/ | This channel is logged. | For logs and more information, visit http://bitcoin.ninja

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04:59 <maaku> nickler: can you double-check the equations in the slides? I suspect there might be some typos

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10:02 <nickler> maaku: double-checked. I didn't see typos but I'm probably blind. Did you notice anything specifically?

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12:22 <kanzure> hah blind

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17:22 <maaku> nickler: the blinding is done with hash(R',P,m) but the verification is done with hash(R,P,m)

17:22 <maaku> these won't match

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17:23 <maaku> are you using a hashing scheme with a homomorphism?

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17:29 <andytoshi> maaku: verification uses R'

17:29 <maaku> and, I presume, c?

17:30 <maaku> slides should probably be updated

17:30 <maaku> it's just the regular schnorr verifier repeated

17:31 <andytoshi> yes

17:31 <andytoshi> it's still worth writing it out so that it's clear that verification is identicy

17:31 <andytoshi> identical

17:31 <maaku> it's not identical... that's my point

17:32 <maaku> Not with the variable bindings used up to that point on the slide deck

17:33 <maaku> I think you misinterpreted what I said. the slides repeat the Schnorr verification equation, which is a mistake in context

17:33 <andytoshi> this looks like a python function

17:33 <andytoshi> which will be correct

17:34 <andytoshi> i don't understand "variable bindings up to that point", there are no globals anywhere

17:35 <maaku> the prior slide defines R as k*g

17:36 <maaku> python doesn't have a := operator btw, so it is not python. one just has to guess at what this pseudocode represents

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18:10 <nickler> maaku: oh, I see what you mean. I thought it was easier to understand that way. Maybe it's more clear with audio. I'll think about how to update the slides. If in doubt you can also look at the references.

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