Paper 2018/029

Practical, Anonymous, and Publicly Linkable Universally-Composable Reputation Systems

Johannes Blömer, Fabian Eidens, and Jakob Juhnke

Abstract

We consider reputation systems in the Universal Composability Framework where users can anonymously rate each others products that they purchased previously. To obtain trustworthy, reliable, and honest ratings, users are allowed to rate products only once. Everybody is able to detect users that rate products multiple times. In this paper we present an ideal functionality for such reputation systems and give an efficient realization that is usable in practical applications.

Note: Fixed typos and corrected acknowledgements.

Metadata
Available format(s)
PDF
Category
Applications
Publication info
Published elsewhere. MINOR revision.10.1007/978-3-319-76953-0_25
Keywords
ReputationTrustAnonymityUniversal Composability
Contact author(s)
jakob juhnke @ uni-paderborn de
History
2018-05-08: revised
2018-01-08: received
See all versions
Short URL
https://ia.cr/2018/029
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2018/029,
      author = {Johannes Blömer and Fabian Eidens and Jakob Juhnke},
      title = {Practical, Anonymous, and Publicly Linkable Universally-Composable Reputation Systems},
      howpublished = {Cryptology ePrint Archive, Paper 2018/029},
      year = {2018},
      note = {\url{https://eprint.iacr.org/2018/029}},
      url = {https://eprint.iacr.org/2018/029}
}
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