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CCS
2007
ACM

Attribute-based encryption with non-monotonic access structures

13 years 9 months ago
Attribute-based encryption with non-monotonic access structures
We construct an Attribute-Based Encryption (ABE) scheme that allows a user’s private key to be expressed in terms of any access formula over attributes. Previous ABE schemes were limited to expressing only monotonic access structures. We provide a proof of security for our scheme based on the Decisional Bilinear Diffie-Hellman (BDH) assumption. Furthermore, the performance of our new scheme compares favorably with existing, less-expressive schemes.
Rafail Ostrovsky, Amit Sahai, Brent Waters
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Where CCS
Authors Rafail Ostrovsky, Amit Sahai, Brent Waters
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