All Questions
Tagged with cryptocurrency protocol-design
9 questions
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Secure permutation of $E(\mathbb{F}_q)$ as a set for an elliptic curve $E$ over a finite field $\mathbb{F}_q$
Let $E$ be an elliptic curve over a finite field $\mathbb{F}_q$. For simplicity, let the group $E(\mathbb{F}_q)$ be of prime order.
Assume that I know how to construct an efficiently computable ...
- 425
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2
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Is the following non-interactive zero-knowledge set membership protocol provably secure?
Given the following Zero-knowledge set-membership protocol https://infoscience.epfl.ch/record/128718/files/CCS08.pdf]. That is given in the following steps (Please refer to page 9).
The Verifier
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- 223
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Economically Rational as a security proof
Is it possible to prove the security of a cryptocurrency payment protocol by saying that the actors will seek to maximize their profits. Would I need to set this up as a game and prove it that way or ...
- 113
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Why won't a BFT protocol using simple signing/voting work?
PBFT and most consensus algorithms are more complicated than a simple voting scheme. By simple voting I mean the following: we require all nodes to sign their local copy of the state and send this ...
- 101
3
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Piggyback on Bitcoin for independent data verification?
The recent threats to EPA data integrity have me wondering if it's possible to archive data in a way such that one can later check whether the data have been tampered with since the original archival.
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- 133
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Could eVoting on the bitcoin blockchain be done?
I'm basically a crypto noob (and not an english native), so please be indulgent :)
I thought about if you could realize an eVoting system with bitcoin.
I see 2 major requirements:
each citizen can ...
- 133
6
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2
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355
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Ways to make a "doomsday" cryptocurrency which becomes untradable
As a social experiment (not a money-making scheme), I'm interested in developing a crazy cryptocurrency which, by its very design, will become worthless and untradable after a certain point. Ideally, ...
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Is there any serious discussion about using blinding intermediaries in digital currency scenarios?
A digital currency system like Lucre (OpenTransaction) creates a coin by a mint blind signing the output of a hash function, which the payer then unblinds and pairs with the input to the has function.
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- 1,136
32
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Prevent double-spending with decentralized digital currencies without all transactions being public?
A recent approach to creating a decentralized online currency, called Bitcoin, has been generating some interest. The goal is to have a way to transfer currency without a central authority and without ...
