Enhancing Cloud Storage Security and Efficiency through Integrated Ranked Keyword Search and Cryptographic Techniques: A Multi-Client Approach

Bhat, Vaishnavi Krishnananda (2024) Enhancing Cloud Storage Security and Efficiency through Integrated Ranked Keyword Search and Cryptographic Techniques: A Multi-Client Approach. Masters thesis, Dublin, National College of Ireland.

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Abstract

Cloud storage services usage is growing to handle and store large amounts of data. This demands for advanced security measures that does not compromise data retrieval efficiency. Conventional encryption technologies even though secure, makes it difficult to perform effective searches, that results in trade-off between security and usability. This research work focuses on improving data retrieval relevance while maintaining strong security measures in a multi-client environment by integrating distributed point function (DPF) with frequency-based ranked keyword search. The system is implemented using Python and evaluated using a dataset that contains keywords of 4,000 documents. Key findings from this study shows that the frequency-based ranking algorithm greatly increases search relevancy while having minimal impact on overall efficiency. The system also maintains robust security by having low false positive and false negative rates. This work contributes to the development of more secure and efficient cloud storage solutions, addressing the growing needs of industries like healthcare and finance. Further research can focus on improvising on the scalability of the system and refinement of the ranking algorithms to better handle diverse and large-scale data environments.

Item Type:	Thesis (Masters)
Supervisors:	Name Email Samarawickrama, Yasantha UNSPECIFIED
Uncontrolled Keywords:	Distributed point functions; ranking algorithm; data retrieval; multi-client; cloud storage
Subjects:	Q Science > QA Mathematics > Electronic computers. Computer science T Technology > T Technology (General) > Information Technology > Electronic computers. Computer science T Technology > T Technology (General) > Information Technology > Cloud computing Q Science > QA Mathematics > Computer software > Computer Security T Technology > T Technology (General) > Information Technology > Computer software > Computer Security
Divisions:	School of Computing > Master of Science in Cloud Computing
Depositing User:	Ciara O'Brien
Date Deposited:	03 Jul 2025 09:05
Last Modified:	03 Jul 2025 09:05
URI:	https://norma.ncirl.ie/id/eprint/8010

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