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» On the Composition of Public-Coin Zero-Knowledge Protocols
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CRYPTO
2009
Springer
144views Cryptology» more  CRYPTO 2009»
13 years 11 months ago
On the Composition of Public-Coin Zero-Knowledge Protocols
Abstract. We show that only languages in BPP have public-coin, blackbox zero-knowledge protocols that are secure under an unbounded (polynomial) number of parallel repetitions. Thi...
Rafael Pass, Wei-Lung Dustin Tseng, Douglas Wikstr...
TCC
2010
Springer
179views Cryptology» more  TCC 2010»
14 years 1 months ago
Private Coins versus Public Coins in Zero-Knowledge Proof Systems
Goldreich-Krawczyk (Siam J of Comp’96) showed that only languages in BPP have constant-round public-coin black-box zero-knowledge protocols. We extend their lower bound to “ful...
Rafael Pass, Muthuramakrishnan Venkitasubramaniam
IACR
2011
147views more  IACR 2011»
12 years 4 months ago
Adaptive Security of Concurrent Non-Malleable Zero-Knowledge
A zero-knowledge protocol allows a prover to convince a verifier of the correctness of a statement without disclosing any other information to the verifier. It is a basic tool a...
Zhenfu Cao, Zongyang Zhang, Yunlei Zhao
SIAMCOMP
2008
109views more  SIAMCOMP 2008»
13 years 3 months ago
On Monotone Formula Composition of Perfect Zero-Knowledge Languages
We investigate structural properties of interactive perfect zero-knowledge (PZK) proofs. Specifically, we look into the closure properties of PZK languages under monotone boolean ...
Alfredo De Santis, Giovanni Di Crescenzo, Giuseppe...
EUROCRYPT
1999
Springer
13 years 9 months ago
On the Concurrent Composition of Zero-Knowledge Proofs
We examine the concurrent composition of zero-knowledge proofs. By concurrent composition, we indicate a single prover that is involved in multiple, simultaneous zero-knowledge pro...
Ransom Richardson, Joe Kilian