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Efficient CP-ABE with Non-monotonic Access Structures

机译:具有非单调访问结构的高效CP-ABE

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Ciphertext policy attribute based encryption (CP-ABE) systems are suitable for supporting access control with complex attribute-based policies. But there is a few CP-ABE systems that support non-monotonic access structures. In this paper we present an efficient CP-ABE construction which supports NOT operation as well as m-of-n threshold gates. This construction is proved to be selectively secure under decisional bilinear Diffie-Hellman assumption. The comparison between our scheme and other similar systems shows that our construction is an efficient and expressive CP-ABE construction that supports the negation of attributes.
机译:基于密文策略属性的加密(CP-ABE)系统适用于支持基于复杂属性的策略的访问控制。但是,有一些CP-ABE系统支持非单调访问结构。在本文中,我们提出了一种有效的CP-ABE结构,该结构支持NOT操作以及m-of-n阈值门。在判定双线性Diffie-Hellman假设下,这种构造被证明是有选择地安全的。我们的方案与其他类似系统之间的比较表明,我们的构造是一种高效且表现力强的CP-ABE构造,支持否定属性。

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