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CRYPTO
2000
Springer
182views Cryptology» more  CRYPTO 2000»
13 years 12 months ago
A Note on the Round-Complexity of Concurrent Zero-Knowledge
Abstract. We present a lower bound on the number of rounds required by Concurrent Zero-Knowledge proofs for languages in NP. It is shown that in the context of Concurrent Zero-Know...
Alon Rosen
TCC
2010
Springer
179views Cryptology» more  TCC 2010»
14 years 4 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
LATINCRYPT
2010
13 years 6 months ago
On the Round Complexity of Zero-Knowledge Proofs Based on One-Way Permutations
We consider the following problem: can we construct constant-round zero-knowledge proofs (with negligible soundness) for NP assuming only the existence of one-way permutations? We...
S. Dov Gordon, Hoeteck Wee, David Xiao, Arkady Yer...
SIAMCOMP
2008
109views more  SIAMCOMP 2008»
13 years 6 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...
TCC
2010
Springer
163views Cryptology» more  TCC 2010»
14 years 2 months ago
Concise Mercurial Vector Commitments and Independent Zero-Knowledge Sets with Short Proofs
Introduced by Micali, Rabin and Kilian (MRK), the basic primitive of zero-knowledge sets (ZKS) allows a prover to commit to a secret set S so as to be able to prove statements such...
Benoît Libert, Moti Yung