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Generalized IBE in the Exponent-Inversion Framework
Xavier Boyen
83 - 99
10.3233/978-1-58603-947-9-83
Chapter VI
Cryptology and Information Security Series
Volume 2: Identity-Based Cryptography
Abstract

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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