Attribute - Based Functional Encryption on Lattices ( Extended
نویسنده
چکیده
We introduce a broad lattice manipulation technique for expressive cryptography, and use it to realize functional encryption for access structures from post-quantum hardness assumptions. Speci cally, we build an e cient key-policy attribute-based encryption scheme, and prove its security in the selective sense from learning-with-errors intractability in the standard model. This is a longer version with appendices of a paper to appear at TCC 2013. Author's contact email: [email protected]
منابع مشابه
Attribute-Based Functional Encryption on Lattices
We introduce a broad lattice manipulation technique for expressive cryptography, and use it to realize functional encryption for access structures from post-quantum hardness assumptions. Specifically, we build an efficient key-policy attribute-based encryption scheme, and prove its security in the selective sense from learningwith-errors intractability in the standard model.
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School of science, Xi’an University of Technology Xi'an, 710054, Shaanxi , CHINA [email protected] (Lab of Cryptography and Network Security, Xi’an University of Technology, Xi’an, 710054, China) Abstract. We propose a large universe attribute-based encryption (ABE ) scheme from lattices. It is inspired by Brent Waters’s scheme which is a large universe attribute-based encryption using bilinear ...
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تاریخ انتشار 2014