FABEO: Fast Attribute-Based Encryption with Optimal Security

  • Attribute-based encryption (ABE) enables fine-grained access control on encrypted data and has a large number of practical applications. This paper presents FABEO: faster pairing-based ciphertext-policy and key-policy ABE schemes that support expressive policies and put no restriction on policy type or attributes, and the first to achieve optimal, adaptive security with multiple challenge ciphertexts. We implement our schemes and demonstrate that they perform better than the state-of-the-art (Bethencourt et al. S&P 2007, Agrawal et al., CCS 2017 and Ambrona et al., CCS 2017) on all parameters of practical interest.

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Author:Doreen RiepelGND, Hoeteck WeeGND
Parent Title (English):CCS '22: Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security
Document Type:Article
Date of Publication (online):2024/03/01
Date of first Publication:2022/11/07
Publishing Institution:Ruhr-Universit├Ąt Bochum, Universit├Ątsbibliothek
Tag:attribute-based encryption; generic group model; tightness
First Page:2491
Last Page:2504
Dewey Decimal Classification:Allgemeines, Informatik, Informationswissenschaft / Informatik
open_access (DINI-Set):open_access
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International