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Semi-Adaptive Security and Bundling Functionalities Made Generic and Easy
public-key cryptography functional encryption
2016/3/23
Semi-adaptive security is a notion of security that lies between selective and adaptive security for Attribute-Based Encryption (ABE) and Functional Encryption (FE) systems. In the semi-adaptive model...
Circuit-ABE from LWE: Unbounded Attributes and Semi-Adaptive Security
public-key cryptography attribute-based encryption
2016/2/23
We construct an LWE-based key-policy attribute-based encryption (ABE) scheme that supports
attributes of unbounded polynomial length. Namely, the size of the public parameters is a
fixed polynomial ...