Fully private revocable predicate encryption

Gonzalez Nieto, Juan M., Manulis, Mark, & Sun, Dongdong (2012) Fully private revocable predicate encryption. Lecture Notes in Computer Science, 7372/2012, pp. 350-363.

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We introduce the concept of Revocable Predicate Encryption (RPE), which extends current predicate encryption setting with revocation support: private keys can be used to decrypt an RPE ciphertext only if they match the decryption policy (defined via attributes encoded into the ciphertext and predicates associated with private keys) and were not revoked by the time the ciphertext was created.

We formalize the notion of attribute hiding in the presence of revocation and propose an RPE scheme, called AH-RPE, which achieves attribute-hiding under the Decision Linear assumption in the standard model.

We then present a stronger privacy notion, termed full hiding, which further cares about privacy of revoked users. We propose another RPE scheme, called FH-RPE, that adopts the Subset Cover Framework and offers full hiding under the Decision Linear assumption in the standard model. The scheme offers very flexible privacy-preserving access control to encrypted data and can be used in sender-local revocation scenarios.

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3 citations in Scopus
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ID Code: 51590
Item Type: Journal Article
Refereed: Yes
Keywords: Predicate encryption, Revocation, Attribute Hiding, Full Hiding, Sender-Local Revocation
DOI: 10.1007/978-3-642-31448-3_26
ISSN: 0302-9743
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Springer-Verlag Berlin Heidelberg
Deposited On: 12 Jul 2012 22:26
Last Modified: 12 Jun 2013 14:55

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