Decentralized traceable attribute-based signatures

Ali El Kaafarani; Essam  Ghadafi; D Khader

doi:10.1007/978-3-319-04852-9_17

Decentralized traceable attribute-based signatures

Ali El Kaafarani, Essam Ghadafi, D Khader

Department of Computer Science

University of Bristol

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

53 Citations (SciVal)

Abstract

We provide a formal security model for traceable attribute-based signatures. Our focus is on the more practical case where attribute management is distributed among different authorities rather than relying on a single central authority. By specializing our model to the single attribute authority setting, we overcome some of the shortcomings of the existing model for the same setting.

Our second contribution is a generic construction for the primitive which achieves a strong notion of security. Namely, it achieves CCA anonymity and its security is w.r.t. adaptive adversaries. Moreover, our framework permits expressive signing polices. Finally, we provide some instantiations of the primitive whose security reduces to falsifiable intractability assumptions without relying on idealized assumptions.

Original language	English
Title of host publication	Topics in Cryptology – CT-RSA 2014
Subtitle of host publication	The Cryptographer’s Track at the RSA Conference 2014, San Francisco, CA, USA, February 25-28, 2014. Proceedings
Editors	Josh Benalloh
Publisher	Springer
Pages	327-348
Volume	8366
ISBN (Electronic)	978-3-319-04852-9
ISBN (Print)	978-3-319-04851-2
DOIs	https://doi.org/10.1007/978-3-319-04852-9_17
Publication status	Published - 2014
Event	CT-RSA 2014 - San Francisco, USA United States Duration: 24 Feb 2014 → 28 Feb 2014

Publication series

Name	Lecture Notes in Computer Science
ISSN (Electronic)	0302-9743

Conference

Conference	CT-RSA 2014
Country/Territory	USA United States
City	San Francisco
Period	24/02/14 → 28/02/14

Keywords

attribute-based signatures
standard model
security definitions

Access to Document

10.1007/978-3-319-04852-9_17

Cite this

El Kaafarani, A., Ghadafi, E., & Khader, D. (2014). Decentralized traceable attribute-based signatures. In J. Benalloh (Ed.), Topics in Cryptology – CT-RSA 2014: The Cryptographer’s Track at the RSA Conference 2014, San Francisco, CA, USA, February 25-28, 2014. Proceedings (Vol. 8366, pp. 327-348). (Lecture Notes in Computer Science ). Springer. https://doi.org/10.1007/978-3-319-04852-9_17

Decentralized traceable attribute-based signatures. / El Kaafarani, Ali; Ghadafi, Essam ; Khader, D.
Topics in Cryptology – CT-RSA 2014: The Cryptographer’s Track at the RSA Conference 2014, San Francisco, CA, USA, February 25-28, 2014. Proceedings. ed. / Josh Benalloh . Vol. 8366 Springer, 2014. p. 327-348 (Lecture Notes in Computer Science ).

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

El Kaafarani, A, Ghadafi, E & Khader, D 2014, Decentralized traceable attribute-based signatures. in J Benalloh (ed.), Topics in Cryptology – CT-RSA 2014: The Cryptographer’s Track at the RSA Conference 2014, San Francisco, CA, USA, February 25-28, 2014. Proceedings. vol. 8366, Lecture Notes in Computer Science , Springer, pp. 327-348, CT-RSA 2014, San Francisco, USA United States, 24/02/14. https://doi.org/10.1007/978-3-319-04852-9_17

El Kaafarani A, Ghadafi E, Khader D. Decentralized traceable attribute-based signatures. In Benalloh J, editor, Topics in Cryptology – CT-RSA 2014: The Cryptographer’s Track at the RSA Conference 2014, San Francisco, CA, USA, February 25-28, 2014. Proceedings. Vol. 8366. Springer. 2014. p. 327-348. (Lecture Notes in Computer Science ). doi: 10.1007/978-3-319-04852-9_17

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Decentralized traceable attribute-based signatures

Abstract

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Keywords

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