USRD: User-Searchable and Revocable Data Sharing Scheme in Multi-Fog-IoVs
LuYao Jiang, Yongkang Li, Dongdong Chen, Ke Gu, Yiming Zuo · 2024
Aiming at the security of data sharing in the Internet of vehicles environment, we propose a user-searchable and revocable data-sharing scheme in the Multi-Fog-IoVs. The scheme utilizes a fog node to alleviate the computing burden on users and enhance the computing efficiency of the system. The Garbled Bloom filter and inverted index are used to create a bidirectional index for efficient multi-keyword search and document retrieval. Furthermore, a flexible and efficient user revocation mechanism is constructed while realizing the dynamic updates of data security. Finally, the safety analysis and performance evaluation of the proposed scheme are conducted, and the results indicate that the scheme meets both forward and backward safety requirements while demonstrating outstanding retrieval efficiency.