Abstract: With the rapid growth of cloud storage adoption, ensuring efficient access control and tamper verification has become a critical concern. This paper presents AccessFlex, a Flexible Attribute-Based Access Control Scheme for Sharing Access Privileges in Cloud Storage. The proposed system is developed using Python and MySQL database servers to achieve robust and secure cloud storage management. AccessFlex introduces three key actors in the system: Admin, Data Owner, and Data User. Admin manages cryptography keys and data consumer attributes. Data Owners can securely upload files to the cloud storage server and define access details for Data Users. Data Users are granted access to authorized files based on their attributes. The AccessFlex system guarantees confidentiality, integrity, and accountability, providing a comprehensive solution for secure file management in cloud storage environments. By leveraging attribute-based access control, masking, and encryption techniques, the system offers flexibility and scalability, catering to diverse access requirements while safeguarding sensitive data from unauthorized access and modifications. For data security existing RSA encryption techniques are used.

Published in: 2024 International Conference on Electrical, Computer and Energy Technologies (ICECET)