Preserving transparency and accountability in optimistic fair exchange of digital signatures

Huang, Xinyi, Mu, Yi, Susilo, Willy, Wu, Wei, Zhou, Jianying and Deng, Robert H. 2011, Preserving transparency and accountability in optimistic fair exchange of digital signatures, IEEE Transactions on information forensics and security, vol. 6, no. 2, pp. 498-512, doi: 10.1109/TIFS.2011.2109952.

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Title Preserving transparency and accountability in optimistic fair exchange of digital signatures
Author(s) Huang, Xinyi
Mu, Yi
Susilo, Willy
Wu, Wei
Zhou, Jianying
Deng, Robert H.
Journal name IEEE Transactions on information forensics and security
Volume number 6
Issue number 2
Start page 498
End page 512
Total pages 15
Publisher IEEE
Place of publication Piscataway, N.J.
Publication date 2011
ISSN 1556-6013
Keyword(s) accountability
fair exchange
generic design
Summary Optimistic fair exchange (OFE) protocols are useful tools for two participants to fairly exchange items with the aid of a third party who is only involved if needed. A widely accepted requirement is that the third party's involvement in the exchange must be transparent, to protect privacy and avoid bad publicity. At the same time, a dishonest third party would compromise the fairness of the exchange and the third party thus must be responsible for its behaviors. This is achieved in OFE protocols with another property called accountability. It is unfortunate that the accountability has never been formally studied in OFE since its introduction ten years ago. In this paper, we fill these gaps by giving the first complete definition of accountability in OFE where one of the exchanged items is a digital signature and a generic (also the first) design of OFE where transparency and accountability coexist.
Language eng
DOI 10.1109/TIFS.2011.2109952
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2011, Elsevier
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Document type: Journal Article
Collection: School of Information Technology
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