  With the help of a shared pool of reconfigurable computing resources, clients
of the cloud-based model can keep sensitive data remotely and access the apps
and services it offers on-demand without having to worry about maintaining and
storing it locally. To protect the privacy of the public auditing system that
supports the cloud data exchange system. The data's owner has the ability to
change it using the private key and publishes it in the cloud. The RSA
Technique is used to produce key codes for the cloud services atmosphere's
privacy utilizing the system's baseboard number, disc number, and client
passcode for validation. The method is based on a cutting-edge User End
Generated (UEG) privacy technique that minimizes the involvement of a third
party and improves security checks by automatically documenting destructive
activities. To strengthen extensibility, various authorization-assigning
modalities and block access patterns were established together with current
operational design approaches. In order to meet the demands for
decentralization, fine-grained auditability, extensibility, flexibility, and
privacy protection for multilevel data access in networked environments, the
suggested approach makes use of blockchain technology. According to a thorough
performance and security assessment, the current proposal is exceptionally safe
and effective.
