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17827 Mediated Ciphertext-Policy Attribute-Based Encryption and Its Application
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Ibraimi, L. and Petkovic, M. and Nikova, S.I. and Hartel, P.H. and Jonker, W. (2009) Mediated Ciphertext-Policy Attribute-Based Encryption and Its Application. In: Information Security Applications, 25-27 August 2009, Busan, Korea. pp. 309-323. Lecture Notes in Computer Science 5932/2009. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-10837-2

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In Ciphertext-Policy Attribute-Based Encryption (CP-ABE), a user secret key is associated with a set of attributes, and the ciphertext is associated with an access policy over attributes. The user can decrypt the ciphertext if and only if the attribute set of his secret key satisfies the access policy specified in the ciphertext. Several CP-ABE schemes have been proposed, however, some practical problems, such as attribute revocation, still needs to be addressed. In this paper, we propose a mediated Ciphertext-Policy Attribute-Based Encryption (mCP-ABE) which extends CP-ABE with instantaneous attribute revocation. Furthermore, we demonstrate how to apply the proposed mCP-ABE scheme to securely manage Personal Health Records (PHRs).

Item Type:Conference or Workshop Paper (Full Paper, Talk)
Research Group:EWI-DIES: Distributed and Embedded Security, EWI-DB: Databases
Research Program:CTIT-ISTRICE: Integrated Security and Privacy in a Networked World
Research Project:SPCMHD: Secure Patient-Centric Management of Health Data
ID Code:17827
Deposited On:28 April 2010
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