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» Optimistic Fair Exchange with Transparent Signature Recovery
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FC
2001
Springer
123views Cryptology» more  FC 2001»
13 years 9 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
IJACT
2008
102views more  IJACT 2008»
13 years 4 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
PKC
2007
Springer
111views Cryptology» more  PKC 2007»
13 years 11 months ago
Optimistic Fair Exchange in a Multi-user Setting
: This paper addresses the security of optimistic fair exchange in a multi-user setting. While the security of public key encryption and public key signature schemes in a single-us...
Yevgeniy Dodis, Pil Joong Lee, Dae Hyun Yum
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
ASIACRYPT
2008
Springer
13 years 6 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...