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Delegation in predicate encryption supporting disjunctive queries

Sun, Dongdong, Boyd, Colin, & Gonzalez Nieto, Juan Manuel (2010) Delegation in predicate encryption supporting disjunctive queries. In Rannenberg, Kai & Varadharajan, Vijay (Eds.) IFIP Advances in Information and Communication Technology : Proceedings of 25th IFIP TC-11 International Information Security Conference, SEC 2010, Springer, Brisbane, pp. 229-240.

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Abstract

Predicate encryption has an advantage over traditional public-key or identity-based encryption, since predicate encryption systems provide more flexible control over access to encrypted data. We focus on delegation capabilities in predicate systems. More specifically, we investigate delegatable encryption systems supporting disjunctive predicate evaluations. We present formal security definitions of delegatable predicate encryption and provide the first delegatable predicate encryption scheme which supports disjunctive predicate evaluations in the public-key setting. We analyze the security of the proposed system and give a security proof. In addition, we present a delegatable predicate encryption in the symmetric-key setting and discuss the related security issues.

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ID Code: 37964
Item Type: Conference Paper
Additional URLs:
Keywords: Predicate Encryption, Delegation
DOI: 10.1007/978-3-642-15257-3
ISBN: 9783642152566
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTER SOFTWARE (080300) > Computer System Security (080303)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Institutes > Information Security Institute
Copyright Owner: Copyright 2010 International Federation of Information Processing
Copyright Statement: This is the author-version of the work. Conference proceedings published, by Springer Verlag, will be available via SpringerLink. http://www.springerlink.com
Deposited On: 15 Oct 2010 10:38
Last Modified: 01 Mar 2012 10:40

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