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2015 | OriginalPaper | Buchkapitel

Efficient RKA-Secure KEM and IBE Schemes Against Invertible Functions

verfasst von : Eiichiro Fujisaki, Keita Xagawa

Erschienen in: Progress in Cryptology -- LATINCRYPT 2015

Verlag: Springer International Publishing

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Abstract

We propose efficient KEM and IBE schemes secure under the related-key attacks (RKAs) against almost all invertible related-key derivation (RKD) functions under the DBDH assumption. The class of RKD functions we consider is broader than the best known RKD function class: For example, the class contains polynomial functions of (bounded) polynomial degrees and the XOR functions simultaneously.

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Titel: Efficient RKA-Secure KEM and IBE Schemes Against Invertible Functions
verfasst von: Eiichiro Fujisaki
Keita Xagawa
Verlag: Springer International Publishing
Buch: Progress in Cryptology -- LATINCRYPT 2015
Print ISBN: 978-3-319-22173-1

Electronic ISBN: 978-3-319-22174-8

Copyright-Jahr: 2015
DOI: https://doi.org/10.1007/978-3-319-22174-8_1

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