指数反演框架下的广义IBE

Identity-Based Cryptography Pub Date : 1900-01-01 DOI:10.3233/978-1-58603-947-9-83

Xavier Boyen

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引用次数: 0

摘要

本章的目的是为以[Bscr][Bscr]2和[Sscr][Kscr]方案为例的指数反演IBE类提供一个抽象，并在此抽象的基础上，展示这些方案确实支持有趣且有用的扩展，如HIBE和ABE。我们的结果缩小了(如果不是完全接近的话)指数反转和交换盲化IBE概念之间的“灵活性差距”。

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Generalized IBE in the Exponent-Inversion Framework

The purpose of this chapter is to provide an abstraction for the class of Exponent-Inversion IBE exemplified by the [Bscr ][Bscr ]2 and [Sscr ][Kscr ] schemes, and, on the basis of that abstraction, to show that those schemes do support interesting and useful extensions such as HIBE and ABE. Our results narrow, if not entirely close, the “flexibility gap” between the Exponent-Inversion and Commutative-Blinding IBE concepts.

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Identity-Based Cryptography

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