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» Optimistic Fair Secure Computation
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IJACT
2008
102views more  IJACT 2008»
13 years 5 months ago
An optimistic fair exchange protocol and its security in the universal composability framework
: Fair exchange protocols allow both or neither of two parties to obtain the other's items, and this property is essential in e-commerce. In this paper, we construct an optimi...
Yusuke Okada, Yoshifumi Manabe, Tatsuaki Okamoto
DRM
2003
Springer
13 years 10 months ago
Breaking and repairing optimistic fair exchange from PODC 2003
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
Yevgeniy Dodis, Leonid Reyzin
ACISP
2004
Springer
13 years 9 months ago
Optimistic Fair Exchange Based on Publicly Verifiable Secret Sharing
Abstract. In this paper we propose an optimistic two-party fair exchange protocol which does not rely on a centralized trusted third party. Instead, the fairness of the protocol re...
Gildas Avoine, Serge Vaudenay
NDSS
2000
IEEE
13 years 9 months ago
Analysis of a Fair Exchange Protocol
We analyze an optimistic contract signing protocol of Asokan, Shoup, and Waidner as a case study in the applicability of formal methods to verification of fair exchange protocols...
Vitaly Shmatikov, John C. Mitchell
ASIACRYPT
2008
Springer
13 years 7 months ago
Ambiguous Optimistic Fair Exchange
Optimistic fair exchange (OFE) is a protocol for solving the problem of exchanging items or services in a fair manner between two parties, a signer and a verifier, with the help o...
Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Su...