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» Concurrently Secure Computation in Constant Rounds
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154
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JOC
2008
86views more  JOC 2008»
15 years 5 months ago
Lower Bounds and Impossibility Results for Concurrent Self Composition
In the setting of concurrent self composition, a single protocol is executed many times concurrently by a single set of parties. In this paper, we prove lower bounds and impossibi...
Yehuda Lindell
FOCS
2007
IEEE
15 years 12 months ago
Round Complexity of Authenticated Broadcast with a Dishonest Majority
Broadcast among n parties in the presence of t ≥ n/3 malicious parties is possible only with some additional setup. The most common setup considered is the existence of a PKI an...
Juan A. Garay, Jonathan Katz, Chiu-Yuen Koo, Rafai...
142
Voted
ASIACRYPT
2000
Springer
15 years 10 months ago
Zero-Knowledge and Code Obfuscation
In this paper, we investigate the gap between auxiliary-input zero-knowledge (AIZK) and blackbox-simulation zero-knowledge (BSZK). It is an interesting open problem whether or not ...
Satoshi Hada
TCC
2009
Springer
116views Cryptology» more  TCC 2009»
16 years 6 months ago
Simulation-Based Concurrent Non-malleable Commitments and Decommitments
Abstract. In this paper we consider commitment schemes that are secure against concurrent man-in-the-middle (cMiM) attacks. Under such attacks, two possible notions of security for...
Rafail Ostrovsky, Giuseppe Persiano, Ivan Visconti
148
Voted
EUROCRYPT
2007
Springer
15 years 11 months ago
Feistel Networks Made Public, and Applications
Feistel Network, consisting of a repeated application of the Feistel Transform, gives a very convenient and popular method for designing “cryptographically strong” permutations...
Yevgeniy Dodis, Prashant Puniya