Delegation in Predicate Encryption Supporting Disjunctive Queries

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.
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Communication dans un congrès
Kai Rannenberg; Vijay Varadharajan; Christian Weber. 25th IFIP TC 11 International Information Security Conference (SEC) / Held as Part of World Computer Congress (WCC), Sep 2010, Brisbane, Australia. Springer, IFIP Advances in Information and Communication Technology, AICT-330, pp.229-240, 2010, Security and Privacy - Silver Linings in the Cloud. 〈10.1007/978-3-642-15257-3_21〉
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Dongdong Sun, Colin Boyd, Juan Manuel González Nieto. Delegation in Predicate Encryption Supporting Disjunctive Queries. Kai Rannenberg; Vijay Varadharajan; Christian Weber. 25th IFIP TC 11 International Information Security Conference (SEC) / Held as Part of World Computer Congress (WCC), Sep 2010, Brisbane, Australia. Springer, IFIP Advances in Information and Communication Technology, AICT-330, pp.229-240, 2010, Security and Privacy - Silver Linings in the Cloud. 〈10.1007/978-3-642-15257-3_21〉. 〈hal-01054513〉

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