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Abstract: A contract is a non-repudiable agreement on a given contract text, i.e., a contract can be used to prove agreement between its signatories to any verifier. A contract signing scheme is used to fairly compute a contract so that, even if one of the signatories misbehaves, either both or none of the signatories obtain a contract. Optimistic contract signing protocols use a third party to ensure fairness, but in such a way that the third party is not actively involved in the fault-less case. Since... (Update)
Context of citations to this paper: More
...way is to ask a third party for assistance but at the price of extra costs. Optimistic exchange and contract signing schemes [1,44] reduce that costs in that the third party is not actively involved in the fault less case. Thus optimistic schemes are more suitable for...
...signatures presented in [4] is also abuse free; however, that protocol is inefficient in that it requires cut and choose techniques. In [23] the optimal efficiency of optimistic contract signing protocols is considered, and they give tight lower bounds on the message and...
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BibTeX entry: (Update)
Birgit Pfitzmann, Matthias Schunter, and Michael Waidner. Optimal efficiency of optimistic contract signing (to appear). In 17th Symposium on Principles of Distributed Computing (PODC), ACM, New York, 1998. http://citeseer.ist.psu.edu/article/pfitzmann98optimal.html More
@inproceedings{ pfitzmann98optimal,
author = "Birgit Pfitzmann and Matthias Schunter and Michael Waidner",
title = "Optimal Efficiency of Optimistic Contract Signing",
booktitle = "Symposium on Principles of Distributed Computing",
pages = "113-122",
year = "1998",
url = "citeseer.ist.psu.edu/article/pfitzmann98optimal.html" }
Citations (may not include all citations):25 Rivest: A Digital Signature Scheme Secure Against Adaptive C.. (context) - Goldwasser, Micali - 1988
11 Rivest: A Fair Protocol for Signing Contracts; IEEE Transact.. (context) - Ben-Or, Goldreich et al. - 1990
11 Cambridge University Press (context) - Gerard, Distributed - 1991
10 Abraham Lempel: A Randomized Protocol for Signing Contracts;.. (context) - Even, Goldreich - 1985
7 Michael Waidner: Optimistic Protocols for Fair Exchange; 4th.. (context) - Asokan, Schunter - 1997
6 Leslie Lamport: Reaching Agreement in the Presence of Faults.. (context) - Pease, Shostak - 1980
6 Yacov Yacobi: Relations Among Public Key Signature Systems; .. (context) - Even - 1980
4 Department of Electrical Engineering and Computer Sciences (context) - Blum, of et al. - 1981
4 Lynch: Distributed Algorithms (context) - Nancy - 1996
4 Reiter: Fair Exchange with a SemiTrusted Third Party; 4th AC.. (context) - Franklin - 1997
4 Michael Waidner: Optimal Efficiency of Optimistic Contract S.. (context) - Pfitzmann, Schunter - 1998
4 Michael Waidner: Optimistic Protocols for Multi-Party Fair E.. (context) - Asokan, Schunter - 1996
4 Dieter Gollmann: An Efficient Non-repudiation Protocol; 10th.. (context) - Zhou - 1997
3 Michael Waidner: Asynchronous Protocols for Optimistic Fair .. (context) - Asokan, Shoup - 1997
3 Plenum Press (context) - Goldreich, protocol et al. - 1984
2 and Low-Liability Certified E-Mail System; presented at RSA .. (context) - Micali, with et al. - 1997
2 and the Ordering of Events in a Distributed System; Communic.. (context) - Lamport, Clocks - 1978
1 SEMPER Document 434SR011/Draft/04/20/98/SEMPER internal Opti.. (context) - Silberschatz, Korth et al. - 1997
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