NDLI: Bayesian rational exchange

Content Provider	Springer Nature Link
Author	Estevez Tapiador, Juan M. Alcaide, Almudena Hernandez Castro, Julio C. Ribagorda, Arturo
Copyright Year	2007
Abstract	The notion of rational exchange introduced by Syverson (Proceedings of the 11th IEEE Computer Society Foundations Workshop, pp. 2–13, 1998) is a particularly interesting alternative when an efficient scheme for fair exchange is required but the use of a trusted third party is not allowed. A rational exchange protocol cannot provide fairness, but it ensures that rational (i.e., self-interested) parties would have no reason to deviate from the protocol. Buttyán et al. (J. Comput. Security 12(3/4), 551–588, 2004) have recently pointed out how rationality in exchange protocols can be formalized and studied within the framework provided by Game Theory. In particular, Buttyan’s formal model was used to analyze Syverson’s rational exchange protocol. In this paper, we identify a series of drawbacks in Buttyan’s model which make it somewhat restrictive and unrealistic. We propose an extension to the model which enables us to consider different classes of protocol parties (e.g., honest and dishonest parties), as well as modeling attributes such as reputation or any other participant beliefs that could have an effect on the protocol outcome. The resulting new model enables us to reason rational exchange protocols from the point of view of Bayesian rationality, a notion that may be in some scenarios more appropriate than that defined in terms of Nash equilibrium.
Starting Page	85
Ending Page	100
Page Count	16
File Format	PDF
ISSN	16155262
Journal	International Journal of Information Security
Volume Number	7
Issue Number	1
e-ISSN	16155270
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-08-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rational exchange Syverson’s protocol Cryptographic protocols Automated validation Game theory Communications Engineering, Networks Management of Computing and Information Systems Coding and Information Theory Operating Systems Computer Communication Networks Data Encryption
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Information Systems Safety, Risk, Reliability and Quality Software

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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