Abstract: Cloud computing, also known as ‘on-demand computing’, is a kind of internet based computing, where shared resources, data and information are provided to computers and other devices on demand. As cloud computing brings ease and cost-saving features, the security and privacy of data is simultaneously becoming very challenging. For providing privacy, many encryption schemes have been proposed. Most of them assume that it provides proper security and cannot be hacked by any unauthorized users, but in practice, some authorities may force cloud providers to reveal user secrets in some circumstances. Here in this paper we propose an encryption scheme which convinces the fake users by providing fake details to the unauthorized users and provide efficient revocation schemes. Thereby we can make our data more secure and private and can be protected from unauthorized users.

Keywords: ABE, CP-ABE, KP-ABE, LSSS.