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ASIACRYPT
2010
Springer
13 years 5 months ago
Random Oracles with(out) Programmability
This paper investigates the Random Oracle Model (ROM) feature known as programmability, which allows security reductions in the ROM to dynamically choose the range points of an ide...
Marc Fischlin, Anja Lehmann, Thomas Ristenpart, Th...
CCS
2006
ACM
13 years 11 months ago
Ring signatures without random oracles
Since the formalization of ring signature by Rivest, Shamir and Tauman in 2001, there are lots of variations appeared in the literature. Almost all of the variations rely on the ra...
Sherman S. M. Chow, Victor K.-W. Wei, Joseph K. Li...
ISPEC
2009
Springer
14 years 2 months ago
Strongly Unforgeable ID-Based Signatures without Random Oracles
In this paper, we construct a strongly unforgeable ID-based signature scheme without random oracles.4 The signature size of our scheme is smaller than that of other schemes based o...
Chifumi Sato, Takeshi Okamoto, Eiji Okamoto
TCC
2007
Springer
125views Cryptology» more  TCC 2007»
14 years 1 months ago
Concurrently-Secure Blind Signatures Without Random Oracles or Setup Assumptions
Abstract. We show a new protocol for blind signatures in which security is preserved even under arbitrarily-many concurrent executions. The protocol can be based on standard crypto...
Carmit Hazay, Jonathan Katz, Chiu-Yuen Koo, Yehuda...
ICICS
2007
Springer
14 years 1 months ago
Short Group Signature Without Random Oracles
Xiaohui Liang, Zhenfu Cao, Jun Shao, Huang Lin