Key-cipher policy attribute-based encryption mechanism for access control of multimedia data in cloud storages

Abstract

Cloud technology is advancing at a rapid pace. Many applications and multimedia data are hosted in the cloud, Security, confidentiality, and efficiency are the key drawbacks of cloud computing. There are a variety of access control systems on the market to secure the data and applications on the cloud. But key generation time is a major flaw both in multi-authority and single authority systems. Cipher policy attribute-based encryption (CPABE) is one of many cryptographic algorithms available for ensuring user confidentiality which provides fine-grained access control. It also addreses a number of issues related attribute revocation, key generation time, and issues in handling a large number of attributes. We present a mechanism called key-cipher-policy-based ABE (KCP) in this article, which is a hybrid approach and combines CP-ABE and KP ABE approaches which result in handling a wide range of attributes, an efficient key generation process, and addresses challenges in attribute revocation.