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DOI: 10.14569/IJACSA.2024.0151189
PDF

An Efficient Privacy-Preserving Randomization-Based Approach for Classification Upon Encrypted Data in Outsourced Semi-Honest Environment

Author 1: Vijayendra Sanjay Gaikwad
Author 2: Kishor H. Walse
Author 3: Mohammad Atique Mohammad Junaid

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 15 Issue 11, 2024.

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Abstract: In cloud environment context, organizations often rely on the platform for data storage and on demand access. Data is typically encrypted either by the cloud service itself or by the data owners before outsourcing it to maintain confidentiality. However, when it comes to processing encrypted data for tasks like kNN classification; existing approaches either prove to be inefficient or delegate portion of the classification task to end users or do not satisfy all the privacy requirements. Also, the datasets used in many existing approaches to check the performance seem to have very less attributes and instances; but, it is observed that as dataset size increases, the efficiency and accuracy of many privacy-preserving approaches reduce significantly. In this work, we propose a set of privacy preserving protocols that collectively perform the kNN classification with encrypted data in outsourced semi-honest-cloud environment and also address the stated challenges. This is accomplished by building an efficient randomization-based approach called PPkC that leverages homomorphic cryptosystem properties. With protocol analysis we prove that the proposed approach satisfies all privacy requirements. Finally, with extensive experimentation using real-world and scaled dataset we show that the performance of proposed PPkC protocol is computationally efficient and also independent of the number of nearest neighbours considered.

Keywords: Partial homomorphic encryption; classification using encrypted data; randomization; k- nearest neighbours

Vijayendra Sanjay Gaikwad, Kishor H. Walse and Mohammad Atique Mohammad Junaid, “An Efficient Privacy-Preserving Randomization-Based Approach for Classification Upon Encrypted Data in Outsourced Semi-Honest Environment” International Journal of Advanced Computer Science and Applications(IJACSA), 15(11), 2024. http://dx.doi.org/10.14569/IJACSA.2024.0151189

@article{Gaikwad2024,
title = {An Efficient Privacy-Preserving Randomization-Based Approach for Classification Upon Encrypted Data in Outsourced Semi-Honest Environment},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2024.0151189},
url = {http://dx.doi.org/10.14569/IJACSA.2024.0151189},
year = {2024},
publisher = {The Science and Information Organization},
volume = {15},
number = {11},
author = {Vijayendra Sanjay Gaikwad and Kishor H. Walse and Mohammad Atique Mohammad Junaid}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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