Achieving Confidentiality and Effective Access Control of Cloud Data Using Cipher Text Policy Based Attribute Based Encryption

Abstract

Today’s era most of the data required for large businesses are stored on cloud. Cloud systems have number of advantages such as it provides space for store large amount of data and shared resources for processing the stored data. Security of the files stored on the cloud is one of the major problems of cloud system. Because data stored on cloud may leaks to unauthorized user or cloud system itself can modify the data or delete the data. So mainly whatever the data stored on cloud by the owner is retrieved by the users who have the permission to access the data which provides the superior access control to the data. Also need to make provision that the data cannot be accessed by cloud itself that is we need to provide integrity auditing of data. This work proposes cipher text-policy ABE scheme with integrity auditing to provide excellent access control and confidentiality of data.