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 Jul2 awarded Curious Jan10 awarded Commentator Jan10 comment How to construct a yes/no election protocol, such that only the result is revealed? thanks, this is amazing Jan10 accepted How to construct a yes/no election protocol, such that only the result is revealed? Jan10 asked How to construct a yes/no election protocol, such that only the result is revealed? Jan9 asked How can we determine if two discrete logarithms are equal? Dec18 comment construct an election protocol for the following election problem..? only individual votes should be kept private Dec18 asked construct an election protocol for the following election problem..? Dec17 accepted Contruct a protocol to determine if three secret keys are different, without revealing any of them? Dec16 awarded Student Dec11 comment Contruct a protocol to determine if three secret keys are different, without revealing any of them? when A and B have the same age, after protocol it should be known that two people in the group have the same age. and it shouldn't be known that A and B have the same age, because this makes A know how old is B, and vice versa...(No one shall discover which numbers are equal.) Dec11 comment Contruct a protocol to determine if three secret keys are different, without revealing any of them? @ PaĆ­lo Ebermann, Actaully i am new to cryptography, but for example it can be used to determine if three persons are from the same age or not, without revealing any information about their ages. Dec11 comment Contruct a protocol to determine if three secret keys are different, without revealing any of them? they communicate sequentially, and the last person may tell the others the result .... but i am also interested in protocols where everyone of them can communicate with everyone else ... Dec11 comment Contruct a protocol to determine if three secret keys are different, without revealing any of them? actually, there is no fourth person to compare the values(trusted center), every thing should be done only between the three persons.. and therefore depending in your comment, if two numbers are equal then two of the persons will know which numbers are equal. Dec11 asked Contruct a protocol to determine if three secret keys are different, without revealing any of them? Dec5 awarded Supporter Dec5 accepted Non-Interactive Zero-Knowledge-Proof for discret Logarithm? Dec5 comment Non-Interactive Zero-Knowledge-Proof for discret Logarithm? the question is edited. Dec5 revised Non-Interactive Zero-Knowledge-Proof for discret Logarithm? deleted 4 characters in body Dec5 comment Non-Interactive Zero-Knowledge-Proof for discret Logarithm? sorry, i mean the prover has the value of the discrete logarithm $x$, and he want to convenes the verifier that he knows the value of $x$ without giving the verifier this value ..