A provenance-based access control model for securely storing data in cloud

Cloud Security is a major concern for storing and protecting of data, applications and services, accessed as per the user requirements [3]. There is a need to provide guaranteed access control mechanism, so that only approved and permitted users will be able to use the data as on demand basis in the cloud [1]. Provenance is a major entity in cloud security. It includes information that is used to take access control decisions related to data access irrespective of time and location [2]. So, it contains information that allows taking policy-independent access control decisions [4]. So, the emphasis is given on managing provenance securely and protects existing data from hackers and untrusted users. A secure Cloud Provenance Authority data storage model is proposed to achieve provenance-based access control. The model uses user attributes in the form of provenance to make policy decisions. The proposed method provides security improvement as compared to the FADE model [4].