A Privacy-Enhanced Retrieval Technology for the Cloud-Assisted Internet of Things

Autor: Kapal Dev, Yang Quan, Tian Wang, Weizheng Wang, Thippa Reddy Gadekallu, Xuewei Shen Shen
Rok vydání: 2022
Předmět:
Zdroj: IEEE Transactions on Industrial Informatics. 18:4981-4989
ISSN: 1941-0050
1551-3203
DOI: 10.1109/tii.2021.3103547
Popis: In the Cloud-assisted Internet of Things (IoT), most of the data is sent to the cloud for storage and processing. Data privacy and security are major concerns. To this end, this paper proposes PERT, a Privacy-Enhanced Retrieval Technology for Cloud-assisted IoT. This architecture is designed through an implicit index maintained by edge servers and a hierarchical retrieval model that preserves data privacy by hiding the information of data transmission between the cloud and the edge servers. For the hierarchical retrieval model, we designed a data partition strategy to offload parts of data stored in edge servers that paves for preservation of data privacy. The extensive experiments have displayed the effectiveness of the technology for data privacy. It is also verified that the architecture can reduce computational cost. Compared with the benchmark cloud encrypted storage model, the time cost of this method is significantly reduced.
Databáze: OpenAIRE