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.