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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<domwoe>
Is there something (or better something practical :)) like a homomorphic signature scheme, i.e.is there an S such that f(S(x)) = S(f(x)) ?
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<nick_freeman>
sorry, I just got disconnected and don't know if you received my question and if you send an answer. My question was what if you use R=H(m)*(A+A)
<sipa>
same problem
<sipa>
there cannot be any publicly known relation between k and x
<sipa>
*polynomial
<nick_freeman>
how do you solve H(m)*x^2 + H( R || P || m ) * x ?
<nick_freeman>
* s = H(m)*x^2 + H( R || P || m ) * x
<sipa>
that's just a quadratic equation
<sipa>
i'msure you learned how to solve them in school
<nick_freeman>
sorry to bother you which such simple stuff. After you say it somehow it becomes so obvious that I feel dumb :D
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