Print Email Facebook Twitter Secure Smart Contract-Based Data Aggregation using Homomorphic Encryption Title Secure Smart Contract-Based Data Aggregation using Homomorphic Encryption Author Joosen, Floor (TU Delft Electrical Engineering, Mathematics and Computer Science; TU Delft Cyber Security) Contributor Liang, K. (mentor) Roos, S. (graduation committee) Degree granting institution Delft University of Technology Programme Computer Science and Engineering Project CSE3000 Research Project Date 2022-01-27 Abstract Privacy and security are important topics in data aggregation, as companies are aggregating large amounts of sensitive data from their users. The aim of this paper is to improve the security and privacy of data aggregation using smart contracts, homomorphic encryption and post-quantum encryption methods on Hyperledger Fabric. After a literature study, the protocol discussed in \cite{Regueiro2021} was taken as the starting point for an adapted protocol. The adapted protocol is implemented and tested on performance and the security is discussed. The protocol is improved in terms of security by resolving or lowering the chance of security flaws that were present in the protocol in \cite{Regueiro2021}, and introducing post-quantum encryption. However, the adapted protocol in its current implementation is not scalable. Subject smart contractHyperledger Fabrichomomorphic encryptionData aggregation To reference this document use: http://resolver.tudelft.nl/uuid:c3f85d9f-0b78-445b-b778-7eed6d446912 Part of collection Student theses Document type bachelor thesis Rights © 2022 Floor Joosen Files PDF Final_Research_Project_Paper.pdf 1.68 MB Close viewer /islandora/object/uuid:c3f85d9f-0b78-445b-b778-7eed6d446912/datastream/OBJ/view