A Hybrid Attribute-Based Encryption Technique Supporting Expressive Policies and Dynamic Attributes
Stefan Weber · Information Security Journal A Global Perspective · 2012
This article proposes a novel hybrid attribute-based encryption technique. It is attribute-based, as it allows encrypting under logical combinations of attributes, that is, properties that users satisfy. It is hybrid, as it combines ciphertext-policy attribute-based encryption (CP-ABE) with location-based encryption (LBE) on the level of symmetric keys. It supports encryption under expressive policies, since it can efficiently handle dynamic attributes with continuous values, such as location.