Scalable Data Access Control Using Attribute-Based Encryption

This paper is a technical report that discusses the implementation and evaluation of Ciphertext-Policy Attribute-Based Encryption (CP-ASBE) in cloud environments to provide fine-grained access control for sensitive data. The report outlines how this encryption method allows data owners to define access policies based on user attributes, ensuring that only authorized users can decrypt the data. It emphasizes the scalability and flexibility of CP-ASBE, which can be integrated with major cloud platforms like AWS and Azure. The paper details the tools utilized in the implementation, including OpenSSL and Jenkins, and describes the rigorous testing methodologies employed to assess the system's effectiveness and security. Furthermore, it highlights the compliance with cryptographic standards and regulatory requirements, demonstrating that CP-ASBE is a robust solution for managing access to sensitive data across various sectors, including healthcare and education. The report concludes with a discussion on the future implications of cloud computing and encryption technologies.