Fog-to-MultiCloud Cooperative eHealth Data Management with Application-Aware Secure Deduplication
物联网
计算机网络
服务器
作者
Yinjin Fu,Nong Xiao,Tao Chen,Jian Wang
出处
期刊:IEEE Transactions on Dependable and Secure Computing [Institute of Electrical and Electronics Engineers] 日期:2021-06-01卷期号: (01): 1-1被引量:1
标识
DOI:10.1109/tdsc.2021.3086089
摘要
The healthcare industry faces challenges regarding the security and efficiency of data management for patient health records (PHRs). We propose SafePHR: a secure and efficient medical data service with application aware deduplication in fog-to-multicloud encrypted storage. It introduces a fog-to-multicloud cooperative storage model, which combines low-latency and high-safety local fog with unlimited capacity and built-in disaster recovery in remote multi-cloud to enhance eHealth data management. It also provides an application aware secure deduplication scheme to improve the data traffic and space efficiency of cloud storage for encrypted PHRs using variants of convergent encryption. Then, it further enhances the resiliency and security of cloud storage by striping encrypted data across multiple cloud vendors with a fault-tolerant coding scheme. Compared with the state-of-the-art of cloud-assisted eHealth systems, our experiments demonstrate that SafePHR can ensure data confidentiality of deduplication, achieve a competitive low cloud storage space overhead, and improve system performance with high fault-tolerance capability.