Performance analysis of authorization and attribute based encryption techniques for secured cloud data services

Abstract

Cloud Computing (CC) is a promising technology which provides different types of services to the users. The cloud data owners are possible to transmit their message safely to the cloud with enhanced security level. The confidentiality based communication among cloud users and service providers is significant for secured data communication in a cloud environment. Recently, many research works have been developed for improving the security while communicating the data through the cloud. But, the KP-ABE scheme lessens the security and confidentiality of outsourced data because of unauthorized access in CC. Therefore, this research work focuses on developing the secured message communication with higher confidentiality level and the reduced communication overhead for cloud service provisioning. Mediated Certificate Less Public Key Encryption (mCL-PKE) which was introduced to encrypt the sensitive data based on generated public keys by access control strategy and then decrypt the part of encrypted data, depended on successful authentication. But, overall overhead and computational cost was enhanced while managing the multiple users on public clouds. Ranked Searchable Symmetric Encryption Scheme was intended to utilize efficient server-side ranking with minimum loss of any privacy of keyword. However, due to the unauthorized access in cloud, the user provides the computational cost and security issues. In order to improve the security level, the secure dynamic scheme was planned for generating the key with data members without utilizing the communication channel. Yet, the aspect of decreasing the computation cost with minimum key generation time was not considered. newline newline newline