FABEO: Fast Attribute-Based Encryption with Optimal Security

Doreen Riepel; Hoeteck Wee

Paper 2022/1415

FABEO: Fast Attribute-Based Encryption with Optimal Security

Doreen Riepel

, Ruhr University Bochum

Hoeteck Wee, NTT Research

Abstract

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.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. Minor revision. ACM CCS 2022
DOI: 10.1145/3548606.3560699
Keywords: attribute-based encryption generic group model tightness
Contact author(s): doreen riepel @ rub de
wee @ di ens fr
History: 2023-11-09: revised; 2022-10-18: received; See all versions
Short URL: https://ia.cr/2022/1415
License: CC BY

BibTeX

@misc{cryptoeprint:2022/1415,
      author = {Doreen Riepel and Hoeteck Wee},
      title = {{FABEO}: Fast Attribute-Based Encryption with Optimal Security},
      howpublished = {Cryptology {ePrint} Archive, Paper 2022/1415},
      year = {2022},
      doi = {10.1145/3548606.3560699},
      url = {https://eprint.iacr.org/2022/1415}
}