Multi - Authority Based Approach for Manipulation of Encrypted Data in Cloud

Abstract

In this paper, we address the protection concerns of cloud storage under the scenario where users encrypt-then-outsource data, share their outsourced data with other users, and so the service provider may be queried for searching and retrieval of encrypted data. Because the main distinctive, we propose a security approach for storage, sharing, and retrieval of encrypted data within the fully as constructed supported attribute-based encryption (ABE) thus enabling access control mechanisms over both the encrypted data and also for the data retrieval task through search access control. Efforts have studied problems around this application scenario on different fronts: efficiency, flexibility, reliability, and security. Our suggested secure Multi-authority CP-ABKS (MABKS) system addresses such limitations and minimizes the computation and storage burden on resource-limited devices in cloud systems. Additionally, the MABKS system is extended to support malicious attribute authority tracing and attribute update. proposed a practical CP-ABE scheme, which offers user revocation and attributes updates. We proposed an efficient and feasible MABKS system to support multiple authorities, to avoid having performance bottlenecks at one point in cloud systems. Furthermore the presented MABKS system allows us to trace malicious.