ABSTRACT

Cloud computing has emerged as a computing paradigm bringing forward many new challenges for data security and access control when users outsource sensitive data for sharing on cloud servers, which are not within the same trusted domain as data owners. Considering the user access control part, in recent years many new findings have been worked upon to provide better user access control while accessing services over a cloud. But the problem still remains unresolved and if resolved by some encryption/decryption methods are problematic in some way or the other. Here security issue related to user authentication and access control is addressed and given an insight into it, along with providing some valuable inputs which if implemented according to the plan proposed might come up with better solutions to user authentication and CSP’s critical data security issue. This paper mainly considers various points, like securing access to services of cloud users, protecting user credentials data files stored with CSP and other critical information related with CSP and cloud users.