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» Usable Optimistic Fair Exchange
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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
SSS
2009
Springer
13 years 10 months ago
Optimistic Fair Exchange Using Trusted Devices
Efficiency of optimistic fair exchange using trusted devices is studied. Pfitzmann, Schunter and Waidner (PODC 1998) have shown that four messages in the main sub-protocol is op...
Mohammad Torabi Dashti
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...
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
FC
2001
Springer
123views Cryptology» more  FC 2001»
13 years 10 months ago
Optimistic Fair Exchange with Transparent Signature Recovery
In this paper, we propose a new practical fair exchange protocol allowing the exchange of an electronic item against a signature. The protocol is based on the Guillou-Quisquater s...
Olivier Markowitch, Shahrokh Saeednia