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ABE for DFA from k-Lin

Junqing Gong 1, 2, 3 Brent Waters 4 Hoeteck Wee 1, 3, 2
1 DI-ENS - Département d'informatique de l'École normale supérieure
2 PSL - Université Paris sciences et lettres
3 CASCADE - Construction and Analysis of Systems for Confidentiality and Authenticity of Data and Entities
DI-ENS - Département d'informatique de l'École normale supérieure, CNRS - Centre National de la Recherche Scientifique : UMR 8548, Inria de Paris
4 Computer Science Department [Austin]
Abstract : We present the first attribute-based encryption (ABE) scheme for deterministic finite automaton (DFA) based on static assumptions in bilinear groups; this resolves an open problem posed by Waters (CRYPTO 2012). Our main construction achieves selective security against unbounded collusions under the standard k-linear assumption in prime-order bilinear groups, whereas previous constructions all rely on q-type assumptions.
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https://hal.inria.fr/hal-02358440
Contributor : Hoeteck Wee <>
Submitted on : Monday, November 11, 2019 - 10:45:40 PM
Last modification on : Wednesday, June 9, 2021 - 3:22:30 AM

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CNRS | INRIA | ENS-PARIS | PSL | SU-SCIENCES | SORBONNE-UNIVERSITE

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Junqing Gong, Brent Waters, Hoeteck Wee. ABE for DFA from k-Lin. CRYPTO 2019 - 39th Annual International Cryptology Conference, Aug 2019, Santa Barbara, United States. pp.732-764, ⟨10.1007/978-3-030-26951-7_25⟩. ⟨hal-02358440⟩

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