Leakage-Resilient Attribute-Based Encryption with Attribute-Hiding

Yijian Zhang; Yunhao Ling; Jie Chen; Luping Wang

Paper 2024/388

Leakage-Resilient Attribute-Based Encryption with Attribute-Hiding

Yijian Zhang, Shanghai Key Laboratory of Trustworthy Computing, School of Software Engineering, East China Normal University, Shanghai, China

Yunhao Ling, Shanghai Key Laboratory of Trustworthy Computing, School of Software Engineering, East China Normal University, Shanghai, China

Jie Chen, Shanghai Key Laboratory of Trustworthy Computing, School of Software Engineering, East China Normal University, Shanghai, China

Luping Wang, School of Electronic and Information Engineering, Suzhou University of Science and Technology, Jiangsu, China, and Jiangsu Key Laboratory for Elevator Intelligent Safety, Jiangsu, China

Abstract

In this work, we present two generic frameworks for leakage-resilient attribute-based encryption (ABE), which is an improved version of ABE that can be proven secure even when part of the secret key is leaked. Our frameworks rely on the standard assumption ($k$-Lin) over prime-order groups. The first framework is designed for leakage-resilient ABE with attribute-hiding in the bounded leakage model. Prior to this work, no one had yet derived a generic leakage-resilient ABE framework with attribute-hiding. The second framework provides a generic method to construct leakage-resilient ABE in the continual leakage model. It is compatible with Zhang et al.'s work [DCC 2018] but more generic. Concretely, Zhang et al.'s framework cannot act on some specific ABE schemes while ours manages to do that. Technically, our frameworks are built on the predicate encoding of Chen et al.'s [EUROCRYPT 2015] combined with a method of adding redundancy. At last, several instantiations are derived from our frameworks, which cover the cases of zero inner-product predicate and non-zero inner-product predicate.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. Minor revision. ICISC 2023
Keywords: Leakage-resilient Attribute-based encryption Attribute-hiding Predicate encoding
Contact author(s): yjzhangagra @ gmail com
s080001 @ e ntu edu sg
History: 2024-03-04: approved; 2024-03-03: received; See all versions
Short URL: https://ia.cr/2024/388
License: CC BY

BibTeX

@misc{cryptoeprint:2024/388,
      author = {Yijian Zhang and Yunhao Ling and Jie Chen and Luping Wang},
      title = {Leakage-Resilient Attribute-Based Encryption with Attribute-Hiding},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/388},
      year = {2024},
      url = {https://eprint.iacr.org/2024/388}
}