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搜索结果: 1-9 共查到Proofs of Space相关记录9条 . 查询时间(0.14 秒)
Non-malleable codes are encoding schemes that provide protections against various classes of tampering attacks. Recently Faust et al. (CRYPTO 2017) initiated the study of space- bounded non-malleable ...
Tight proofs of space are necessary for proof-of-replication (PoRep), which is a publicly verifiable proof that the prover is dedicating unique resources to storing one or more retrievable replicas of...
A proof-of-replication (PoRep) is an interactive proof system in which a prover defends a publicly verifiable claim that it is dedicating unique resources to storing one or more retrievable replicas o...
Proofs of space (PoS) were suggested as more ecological and economical alternative to proofs of work, which are currently used in blockchain designs like Bitcoin. The existing PoS are based on rather ...
We investigate lower bounds in terms of time and memory on the parallel complexity of an adversary A computing labels of randomly selected challenge nodes in direct acyclic graphs, where the w-bit l...
We introduce a new cryptographic primitive: Proofs of SpaceTime (PoSTs) and construct a practical protocol for implementing these proofs. A PoST allows a prover to convince a verifier that she spent...
We propose a decentralized cryptocurrency called Spacemint, which is based on a block chain ledger similar to that of Bitcoin, but where the wasteful proofs of work are replaced by efficient \emph{pro...
Proofs of computational effort were devised to control denial of service attacks. Dwork and Naor (CRYPTO '92), for example, proposed to use such proofs to discourage spam. The idea is to couple each e...
Proofs of Space     pebbling  proofs of space       2014/3/5
Proofs of work (PoW) have been suggested by Dwork and Naor (Crypto'92) as protection to a shared resource. The basic idea is to ask the service requestor to dedicate some non-trivial amount of computa...

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