Abstract
The new development trends including Internet of Things (IoT), smart city, enterprises digital transformation and world's digital economy are at the top of the tide. The continuous growth of data storage pressure drives the rapid development of the entire storage market on account of massive data generated. By providing data storage and management, cloud storage system becomes an indispensable part of the new era. Currently, the governments, enterprises and individual users are actively migrating their data to the cloud. Such a huge amount of data can create magnanimous wealth. However, this increases the possible risk, for instance, unauthorized access, data leakage, sensitive information disclosure and privacy disclosure. Although there are some studies on data security and privacy protection, there is still a lack of systematic surveys on the subject in cloud storage system. In this paper, we make a comprehensive review of the literatures on data security and privacy issues, data encryption technology, and applicable countermeasures in cloud storage system. Specifically, we first make an overview of cloud storage, including definition, classification, architecture and applications. Secondly, we give a detailed analysis on challenges and requirements of data security and privacy protection in cloud storage system. Thirdly, data encryption technologies and protection methods are summarized. Finally, we discuss several open research topics of data security for cloud storage.
Highlights
With the rise of the Internet of Things (IoT), the number of information sensing devices connected to the Internet is increasing to realize the interconnection among people, devices and ‘‘things’’
Enterprises need to deploy cloud storage infrastructures and arrange professional staff to manage and maintain servers. This ensures that the private cloud has higher security than the public cloud and the control of data is in the hands of the enterprise itself
Massive data brings a series of challenges to enterprises, such as storage expansion, data sharing, efficient transmission, cost and data security, when data storage reaches the PB level, the limitation of by NAS and SAN directly leads to the increase of equipment maintenance cost in the later period
Summary
With the rise of the Internet of Things (IoT), the number of information sensing devices connected to the Internet is increasing to realize the interconnection among people, devices and ‘‘things’’. Enterprises need to deploy cloud storage infrastructures and arrange professional staff to manage and maintain servers This ensures that the private cloud has higher security than the public cloud and the control of data is in the hands of the enterprise itself. Massive data brings a series of challenges to enterprises, such as storage expansion, data sharing, efficient transmission, cost and data security, when data storage reaches the PB level, the limitation of by NAS and SAN directly leads to the increase of equipment maintenance cost in the later period. Cloud storage is based on virtualization infrastructure and is similar to cloud computing in terms of accessible interfaces, scalability and measurement resources It consists of four layers [116], which can be summarized as follows: 1) The storage layer, the basic part of cloud storage, is made up to storage devices and a unified storage device management comprise.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
