• YOVEL.A
• Dr.T.GEETHA

In cloud computing environments, ensuring secure data sharing while maintaining efficient data retrieval remains a significant challenge. Traditional encryption methods, while offering confidentiality, often fall short in providing flexible access control and efficient search mechanisms. To address these limitations, this project proposes the integration of Key-Policy Attribute-Based Encryption with Keyword Search (KP-ABE-KS), a privacy-preserving cryptographic scheme that combines fine-grained access control with secure and efficient keyword-based search capabilities. The KP-ABE component enables data owners to define access policies based on user attributes, ensuring that only authorized users with matching credentials can decrypt and access the data. This eliminates the need for constant oversight by the data owner and enforces policy-based access dynamically. Simultaneously, the keyword search functionality allows users to query encrypted data without revealing the content of the data or the search keywords to the cloud service provider, thereby preserving user privacy and enhancing system usability. By integrating KP-ABE with keyword search, the system allows secure and scalable data sharing in virtualized cloud environments such as public or hybrid clouds. The architecture supports dynamic user access, reduces overhead on the data owner, and enables secure retrieval of data without compromising sensitive information. Additionally, the proposed solution is designed to be resistant to various attacks, including keyword guessing and collusion attacks, ensuring robust security for sensitive information stored in the cloud. This project demonstrates the feasibility and effectiveness of the KP-ABE-KS scheme through a prototype implementation, highlighting its potential for secure data sharing in domains such as e-healthcare, financial systems, and enterprise data management where privacy and access control are paramount.

: Data Owner, Data User, Cloud Server, Key Management Centre (KMC)

"KEY-POLICY ATTRIBUTE-BASED ENCRYPTION WITH KEYWORD SEARCH IN VIRTUALIZED ENVIRONMENTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 6, page no.h245-h248, June-2025, Available :http://www.jetir.org/papers/JETIR2506733.pdf

"KEY-POLICY ATTRIBUTE-BASED ENCRYPTION WITH KEYWORD SEARCH IN VIRTUALIZED ENVIRONMENTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 6, page no. pph245-h248, June-2025, Available at : http://www.jetir.org/papers/JETIR2506733.pdf