37 search results - page 5 / 8 » Optimistic Concurrent Zero Knowledge |
CRYPTO
2005
Springer
13 years 11 months ago
2005
Springer
In this paper, we continue the study the round complexity of black-box zero knowledge in the bare public-key (BPK, for short) model previously started by Micali and Reyzin in [11]....
EUROCRYPT
2003
Springer
13 years 11 months ago
2003
Springer
A new public-key model for resettable zero-knowledge (rZK) protocols, which is an extension and generalization of the upper-bounded public-key (UPK) model introduced by Micali and ...
CRYPTO
2009
Springer
14 years 10 days ago
2009
Springer
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...
EUROCRYPT
2006
Springer
13 years 9 months ago
2006
Springer
Non-interactive zero-knowledge (NIZK) proof systems are fundamental cryptographic primitives used in many constructions, including CCA2-secure cryptosystems, digital signatures, an...
TCC
2010
Springer
14 years 2 months ago
2010
Springer
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...