Publication Type
Journal Article
Version
acceptedVersion
Publication Date
3-2025
Abstract
Aiming to provide people with great convenience and comfort, smart home systems have been deployed in thousands of homes. In this paper, we focus on handling the security and privacy issues in such a promising system by customizing a new cryptographic primitive to provide the following security guarantees: (1) fine-grained, privacy-preserving authorization for smart home users and integrity protection of communication contents; (2) flexible self-sovereign permission delegation; (3) forward security of previous messages. To our knowledge, no previous system has been designed to consider these three security and privacy requirements simultaneously. To tackle these challenges, we put forward the first-ever efficient cryptographic primitive called the Forward-secure Hierarchical Delegable Signature (FS-HDS) scheme for smart homes. Specifically, we first propose a new primitive, efficient Hierarchical Delegable Signature (HDS) scheme, which is capable of supporting partial delegation capability while realizing privacy-preserving authorization and integrity guarantee. Then, we present an FS-HDS for smart homes with the efficient HDS as the underlying building block, which not only inherits all the desirable features of HDS but also ensures that the past content integrity is not affected even if the current secret key is compromised. We provide comprehensively strict security proofs to prove the security of our proposed solutions. Its performance is also validated via experimental simulations to showcase its practicability and effectiveness.
Keywords
Smart home, self-sovereign delegation, forward-secure, integrity
Discipline
Artificial Intelligence and Robotics | Information Security
Research Areas
Cybersecurity
Publication
IEEE Transactions on Information Forensics and Security
ISSN
1556-6013
Identifier
10.1109/TIFS.2025.3555185
Publisher
IEEE
Embargo Period
4-14-2025
Citation
SUN, Jianfei; XU, Guowen; YANG, Yang; YANG, Xuehuan; LI, Xiaoguo; WU, Cong; LIU, Zhen; YANG, Guomin; and DENG, Robert H..
Forward-secure hierarchical delegable signature for smart homes. (2025). IEEE Transactions on Information Forensics and Security.
Available at: https://ink.library.smu.edu.sg/sis_research/10139
Copyright Owner and License
Authors
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1109/TIFS.2025.3555185