Attribute-based signatures with user-controlled linkability

El Kaafarani, Ali; Chen, Liqun; Ghadafi, Essam; Davenport, James

Abstract

In this paper, we introduce Attribute-Based Signatures with User-Controlled Linkability (ABS-UCL). Attribute-based signatures allow a signer who has enough credentials/attributes to anonymously sign a message w.r.t. some public policy revealing neither the attributes used nor his identity. User-controlled linkability is a new feature which allows a user to make some of his signatures directed at the same recipient linkable while still retaining anonymity. Such a feature is useful for many real-life applications. We give a general framework for constructing ABS-UCL and present an efficient instantiation of the construction that supports multiple attribute authorities.

• Presentation Conference Type: Conference Paper (published)
• Conference Name: International Conference on Cryptology and Network Security: CANS 2014
• Acceptance Date: Jul 25, 2014
• Publication Date: Jul 22, 2014
• Journal: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
• Print ISSN: 0302-9743
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: LNCS, volume 8813
• Pages: 256-269
• Series Title: Lecture Notes in Computer Science
• Book Title: Cryptology and Network Security
• ISBN: 9783319122793
• DOI: https://doi.org/10.1007/978-3-319-12280-9_17
• Keywords: attribute-based signatures, security definitions, user-controlled linkability
• Public URL: https://uwe-repository.worktribe.com/output/814422
• Publisher URL: http://dx.doi.org/10.1007/978-3-319-12280-9_17