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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»
14 years 11 days 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 2 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 5 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 4 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 10 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