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» Which Languages Have 4-Round Zero-Knowledge Proofs
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TCC
2009
Springer
130views Cryptology» more  TCC 2009»
14 years 8 months ago
Adaptive Zero-Knowledge Proofs and Adaptively Secure Oblivious Transfer
In the setting of secure computation, a set of parties wish to securely compute some function of their inputs, in the presence of an adversary. The adversary in question may be st...
Yehuda Lindell, Hila Zarosim
SCN
2004
Springer
14 years 26 days ago
Identity-Based Zero Knowledge
Abstract. We introduce and define the notion of identity-based zeroknowledge, concentrating on the non-interactive setting. In this setting, our notion allows any prover to widely...
Jonathan Katz, Rafail Ostrovsky, Michael O. Rabin
CRYPTO
2009
Springer
144views Cryptology» more  CRYPTO 2009»
14 years 2 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...
EUROCRYPT
2006
Springer
13 years 11 months ago
Perfect Non-interactive Zero Knowledge for NP
Non-interactive zero-knowledge (NIZK) proof systems are fundamental cryptographic primitives used in many constructions, including CCA2-secure cryptosystems, digital signatures, an...
Jens Groth, Rafail Ostrovsky, Amit Sahai
CORR
2006
Springer
169views Education» more  CORR 2006»
13 years 7 months ago
Concurrently Non-Malleable Zero Knowledge in the Authenticated Public-Key Model
We consider a type of zero-knowledge protocols that are of interest for their practical applications within networks like the Internet: efficient zero-knowledge arguments of knowl...
Yi Deng, Giovanni Di Crescenzo, Dongdai Lin