Research on Access Control in Cloud Storage System: From Single to Multi-Clouds

Abstract

Implementation of access control in cloud storage system is the essential method to protect users' data from revealing sensitive information. The paper mainly investigates key technologies of access control in cloud storage system, including intra cloud and among multi-clouds. Firstly, we discuss about the focuses in recent researches and challenges of access control in cloud storage system. The access control researches here refer to cipher-text and cross-domain access control in cloud storage system. The key technologies introduce Ciphertext-Policy Attribute-Based Encryption algorithm(CP-ABE), ontology based attributes mapping, algebra based policies integration, solutions for identification, access authorization and identity federation. And the status of these fields is described next. At last, we concluded this paper and proposed some directions in the future work of access control research in cloud storage system. This paper can help to understand the key technologies of access control in cloud storage and helpful in the future researches.

Scalable RBAC model for large-scale applications with automatic user-role assignment

“…The access control requirements or issues may vary from one application domain to other. In cloud computing, protecting user's data from unauthorised access, developing data owner's trust in cloud service providers (CSP), hiding the identity of the data owner (data anonymity), and exchanging data among multiple clouds securely are some of the main concerns (Purushothama and Amberker, 2017;Mishra et al, 2020;Priya et al, 2017;Almutairi et al, 2021;Fan et al, 2018). Maintaining the privacy of patient's data, limiting unnecessary access, deciding the boundary of access to patient's information are some of the basic requirements in healthcare applications (Karim et al, 2017;de Carvalho and Bandiera-Paiva, 2018;Chenthara et al, 2019;Al-Issa et al, 2019).…”