PRIVACY PRESERVING ACCESS CONTROL FRAMEWORK FOR CLOUD DATA USING BLOCKCHAIN

Computer Science and Engineering

The cloud is a computer platform that enables sharing and universal on-demand access, bringing new data processing and services to a wide range of sectors, drastically lowering user computing and storage costs, and enhancing usability. Cloud security has grown in importance as a result of the scalability and intensity of clouds in the world of cloud computing. One of the essential security methods for safeguarding sensitive data that businesses and individuals store in the cloud is access control. The centralised access control system used in the cloud makes it simple for hackers or inside cloud managers to alter or leak critical data. We provide Privacy Preserving Access Control Framework Using Blockchain to solve this problem. First, we use the blockchain node's account address as its identity. At the same time, we reconfigure the data's access control permissions for the cloud, where the data is encrypted and kept. Then, using a framework for privacy-preserving access control, we build processes for access control, authorisation, and authorization revocation. Last but not least, we put the Privacy Preserving Access Control Framework based on enterprise operation system (EOS) into practise. The findings demonstrate that the framework can both safeguard authorised privacy and stop hackers and administrators from improperly accessing resources.

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