Anonymous and publicly linkable reputation systems

Johannes Blömer; Jakob Juhnke; Christina Kolb

doi:10.1007/978-3-662-47854-7_29

Anonymous and publicly linkable reputation systems

Johannes Blömer
, Jakob Juhnke^*
, Christina Kolb

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

27 Citations (Scopus)

1 Downloads (Pure)

Abstract

We consider reputation systems where users are allowed to rate products that they purchased previously. To obtain trustworthy reputations, they are allowed to rate these products only once. As long as they do so, the users stay anonymous. Everybody is able to detect users deviating from the rate-products-only-once policy and the anonymity of such dishonest users can be revoked by a system manager. In this paper we present formal models for such reputation systems and their security. Based on group signatures we design an efficient reputation system that meets all our requirements.

Original language	English
Title of host publication	Financial Cryptography and Data Security
Subtitle of host publication	19th International Conference, FC 2015, San Juan, Puerto Rico, January 26-30, 2015, Revised Selected Papers
Editors	Tatsuaki Okamoto, Rainer Bohme
Place of Publication	Berlin, Heidelberg
Publisher	Springer
Pages	478-488
Number of pages	11
ISBN (Electronic)	978-3-662-47854-7
ISBN (Print)	978-3-662-47853-0
DOIs	https://doi.org/10.1007/978-3-662-47854-7_29
Publication status	Published - 2015
Externally published	Yes
Event	19th International Conference on Financial Cryptography and Data Security, FC 2015 - San Juan, Puerto Rico Duration: 26 Jan 2015 → 30 Jan 2015 Conference number: 19

Publication series

Name	Lecture Notes in Computer Science
Publisher	Springer
Volume	8975
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	19th International Conference on Financial Cryptography and Data Security, FC 2015
Abbreviated title	FC 2015
Country/Territory	Puerto Rico
City	San Juan
Period	26/01/15 → 30/01/15

Keywords

Anonymity
Group signatures
Linkability
Reputation
Strongexculpability
Traceability
Trust
Verifier-local revocation
n/a OA procedure

Access to Document

10.1007/978-3-662-47854-7_29

Cite this

Blömer, J., Juhnke, J., & Kolb, C. (2015). Anonymous and publicly linkable reputation systems. In T. Okamoto, & R. Bohme (Eds.), Financial Cryptography and Data Security: 19th International Conference, FC 2015, San Juan, Puerto Rico, January 26-30, 2015, Revised Selected Papers (pp. 478-488). (Lecture Notes in Computer Science; Vol. 8975). Springer. https://doi.org/10.1007/978-3-662-47854-7_29

Blömer, Johannes ; Juhnke, Jakob ; Kolb, Christina. / Anonymous and publicly linkable reputation systems. Financial Cryptography and Data Security: 19th International Conference, FC 2015, San Juan, Puerto Rico, January 26-30, 2015, Revised Selected Papers. editor / Tatsuaki Okamoto ; Rainer Bohme. Berlin, Heidelberg : Springer, 2015. pp. 478-488 (Lecture Notes in Computer Science).

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title = "Anonymous and publicly linkable reputation systems",

abstract = "We consider reputation systems where users are allowed to rate products that they purchased previously. To obtain trustworthy reputations, they are allowed to rate these products only once. As long as they do so, the users stay anonymous. Everybody is able to detect users deviating from the rate-products-only-once policy and the anonymity of such dishonest users can be revoked by a system manager. In this paper we present formal models for such reputation systems and their security. Based on group signatures we design an efficient reputation system that meets all our requirements.",

keywords = "Anonymity, Group signatures, Linkability, Reputation, Strongexculpability, Traceability, Trust, Verifier-local revocation, n/a OA procedure",

author = "Johannes Bl{\"o}mer and Jakob Juhnke and Christina Kolb",

note = "Publisher Copyright: {\textcopyright} International Financial Cryptography Association 2015.; 19th International Conference on Financial Cryptography and Data Security, FC 2015, FC 2015 ; Conference date: 26-01-2015 Through 30-01-2015",

year = "2015",

doi = "10.1007/978-3-662-47854-7\_29",

language = "English",

isbn = "978-3-662-47853-0",

series = "Lecture Notes in Computer Science",

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booktitle = "Financial Cryptography and Data Security",

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}

Blömer, J, Juhnke, J & Kolb, C 2015, Anonymous and publicly linkable reputation systems. in T Okamoto & R Bohme (eds), Financial Cryptography and Data Security: 19th International Conference, FC 2015, San Juan, Puerto Rico, January 26-30, 2015, Revised Selected Papers. Lecture Notes in Computer Science, vol. 8975, Springer, Berlin, Heidelberg, pp. 478-488, 19th International Conference on Financial Cryptography and Data Security, FC 2015, San Juan, Puerto Rico, 26/01/15. https://doi.org/10.1007/978-3-662-47854-7_29

Anonymous and publicly linkable reputation systems. / Blömer, Johannes; Juhnke, Jakob; Kolb, Christina.
Financial Cryptography and Data Security: 19th International Conference, FC 2015, San Juan, Puerto Rico, January 26-30, 2015, Revised Selected Papers. ed. / Tatsuaki Okamoto; Rainer Bohme. Berlin, Heidelberg: Springer, 2015. p. 478-488 (Lecture Notes in Computer Science; Vol. 8975).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Juhnke, Jakob

AU - Kolb, Christina

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N2 - We consider reputation systems where users are allowed to rate products that they purchased previously. To obtain trustworthy reputations, they are allowed to rate these products only once. As long as they do so, the users stay anonymous. Everybody is able to detect users deviating from the rate-products-only-once policy and the anonymity of such dishonest users can be revoked by a system manager. In this paper we present formal models for such reputation systems and their security. Based on group signatures we design an efficient reputation system that meets all our requirements.

AB - We consider reputation systems where users are allowed to rate products that they purchased previously. To obtain trustworthy reputations, they are allowed to rate these products only once. As long as they do so, the users stay anonymous. Everybody is able to detect users deviating from the rate-products-only-once policy and the anonymity of such dishonest users can be revoked by a system manager. In this paper we present formal models for such reputation systems and their security. Based on group signatures we design an efficient reputation system that meets all our requirements.

KW - Anonymity

KW - Group signatures

KW - Linkability

KW - Reputation

KW - Strongexculpability

KW - Traceability

KW - Trust

KW - Verifier-local revocation

KW - n/a OA procedure

UR - https://www.scopus.com/pages/publications/84949968220

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DO - 10.1007/978-3-662-47854-7_29

M3 - Conference contribution

AN - SCOPUS:84949968220

SN - 978-3-662-47853-0

T3 - Lecture Notes in Computer Science

SP - 478

EP - 488

BT - Financial Cryptography and Data Security

A2 - Okamoto, Tatsuaki

A2 - Bohme, Rainer

PB - Springer

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T2 - 19th International Conference on Financial Cryptography and Data Security, FC 2015

Y2 - 26 January 2015 through 30 January 2015

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Blömer J, Juhnke J, Kolb C. Anonymous and publicly linkable reputation systems. In Okamoto T, Bohme R, editors, Financial Cryptography and Data Security: 19th International Conference, FC 2015, San Juan, Puerto Rico, January 26-30, 2015, Revised Selected Papers. Berlin, Heidelberg: Springer. 2015. p. 478-488. (Lecture Notes in Computer Science). doi: 10.1007/978-3-662-47854-7_29

Anonymous and publicly linkable reputation systems

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Keywords

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