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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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
Editors	Rainer Böhme, Tatsuaki Okamoto
Place of Publication	Berlin, Heidelberg
Publisher	Springer
Pages	478-488
Number of pages	11
Volume	8975
ISBN (Electronic)	9783662478547
ISBN (Print)	9783662478530
DOIs	https://doi.org/10.1007/978-3-662-47854-7_29
Publication status	Published - 16 Jul 2015
Event	19th International Conference on Financial Cryptography and Data Security 2015 - InterContinental San Juan Hotel, San Juan, Puerto Rico Duration: 26 Jan 2015 → 30 Jan 2015 Conference number: 19 https://fc15.ifca.ai/

Publication series

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

Conference

Conference	19th International Conference on Financial Cryptography and Data Security 2015
Country/Territory	Puerto Rico
City	San Juan
Period	26/01/15 → 30/01/15
Internet address	https://fc15.ifca.ai/

Keywords / Materials (for Non-textual outputs)

reputation
trust
group signatures
anonymity
linkability
verifier-local revocation
traceability
strong-exculpability

Access to Document

10.1007/978-3-662-47854-7_29Licence: All Rights Reserved

https://link.springer.com/chapter/10.1007/978-3-662-47854-7_29#author-informationLicence: All Rights Reserved

Cite this

@inproceedings{2cad48e633f146e582f753de6dfb9120,

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 = "reputation, trust, group signatures, anonymity, linkability, verifier-local revocation, traceability, strong-exculpability",

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

year = "2015",

month = jul,

day = "16",

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

language = "English",

isbn = "9783662478530",

volume = "8975",

series = "Lecture Notes in Computer Science",

publisher = "Springer",

pages = "478--488",

editor = "Rainer B{\"o}hme and Tatsuaki Okamoto",

booktitle = "Financial Cryptography and Data Security",

address = "United Kingdom",

note = "19th International Conference on Financial Cryptography and Data Security 2015 ; Conference date: 26-01-2015 Through 30-01-2015",

url = "https://fc15.ifca.ai/",

}

Blömer, J, Juhnke, J & Kolb, C 2015, Anonymous and Publicly Linkable Reputation Systems. in R Böhme & T Okamoto (eds), Financial Cryptography and Data Security. vol. 8975, Lecture Notes in Computer Science, Springer, Berlin, Heidelberg, pp. 478-488, 19th International Conference on Financial Cryptography and Data Security 2015, San Juan, Puerto Rico, 26/01/15. https://doi.org/10.1007/978-3-662-47854-7_29

TY - GEN

T1 - Anonymous and Publicly Linkable Reputation Systems

AU - Blömer, Johannes

AU - Juhnke, Jakob

AU - Kolb, Christina

N1 - Conference code: 19

PY - 2015/7/16

Y1 - 2015/7/16

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 - reputation

KW - trust

KW - group signatures

KW - anonymity

KW - linkability

KW - verifier-local revocation

KW - traceability

KW - strong-exculpability

UR - https://eprint.iacr.org/2014/546

U2 - 10.1007/978-3-662-47854-7_29

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

M3 - Conference contribution

SN - 9783662478530

VL - 8975

T3 - Lecture Notes in Computer Science

SP - 478

EP - 488

BT - Financial Cryptography and Data Security

A2 - Böhme, Rainer

A2 - Okamoto, Tatsuaki

PB - Springer

CY - Berlin, Heidelberg

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

Y2 - 26 January 2015 through 30 January 2015

ER -

Anonymous and Publicly Linkable Reputation Systems

Abstract

Publication series

Conference

Keywords / Materials (for Non-textual outputs)

Access to Document

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Cite this