Citation: A. Juels and M. Szydlo. Attribute-Based Encryption: Using Identity-Based Encryption for Access Control. Manuscript. 2004.
Abstract: We introduce an access-control technique that we refer to as attribute-based encryption (ABE). An extension of the cryptographic technique of identity-based encryption (IBE), our proposed ABE scheme can serve as the basis of an access-control architecture in which entities require no interaction with a trusted authority in order to gain access to sensitive data. We show how to construct any access-control policy for ABE that is expressible as monotone boolean formulae on variables describing the possession of attributes by a requesting entity. This encompasses a broad range of the policy formulations of common interest. Our system is practical: Indeed, its most attractive feature is architectural simplicity.
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