A Note on One Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud

Abstract

According to the rapid growth and essentiality to ensure security in the cloud. In this paper, we propose a Secure AntiCollusion data sharing schema for dynamic groups in the cloud using identity-based encryption. Customers can achieve a thriving and moderated methodology for sharing information between individuals gathered in the cloud with low maintenance characters and low administration cost. Then, security certifications will be given to the sharing information files as they are outsourced. Due to the ongoing change in registration, sharing information while ensuring protection is still a test problem, especially for an unreliable cloud because of the attack by agreement. In addition, for existing plans, the security of the key dispersion depends on the secure communication channel, so again, having such a channel is a solid feeling and is difficult to practice. In this article, we propose a secure information sharing plan for elementary individuals. First, we offer a secure route for key dispersal without secure matching channels, and customers can safely acquire their private keys from the collection administrator. In addition, the plan can perform accurate access control, any client in the collection can use the source in the cloud and refused customers can no longer return to the cloud after being rejected. Third, we can protect the plan against deception attacks, which means that rejected clients can not get the first record of information regardless of whether they handle the untrusted cloud. In this methodology, using the polynomial capability, we can realize a protected client rejection plan. Keywords: Access control, privacy protection, key distribution, cloud computing,