POSTER: Blockchain-Based Differential Privacy Cost Management System

Abstract

Privacy preservation is a big concern for various sectors. To protect individual user data, one emerging technology is differential privacy. However, it still has limitations for datasets with frequent queries, such as the fast accumulation of privacy cost. To tackle this limitation, this paper explores the integration of a secured decentralised ledger, blockchain. Blockchain will be able to keep track of all noisy responses generated with differential privacy algorithm and allow for certain queries to reuse old responses. In this paper, a demo of a proposed blockchain-based privacy management system is designed as an interactive decentralised web application (DApp). The demo created illustrates that leveraging on blockchain will allow the total privacy cost accumulated to decrease significantly. CCS CONCEPTS • Security and privacy → Distributed systems security; Privacypreserving protocols; • Computer systems organization → Peer-to-peer architectures.

A New Transparent and Secured Transmission Routing Method for Blockchain Data in Management Systems

“…The differential privacy algorithm's noisy responses will be tracked via blockchain, which will also permit some requests to reuse previous responses. An interactive decentralized web application is used as the demo of the proposed blockchain-based privacy management system in this study by Leongmei Han et al (2020). The generated demo demonstrates how utilizing blockchain will enable the overall accumulated cost of privacy to dramatically decline [40].…”

“…An interactive decentralized web application is used as the demo of the proposed blockchain-based privacy management system in this study by Leongmei Han et al (2020). The generated demo demonstrates how utilizing blockchain will enable the overall accumulated cost of privacy to dramatically decline [40]. Industry 4.0's hyper-connectivity has led to a rapid increase in the amount of information as well as an expansion of the regions and assets that need to be safeguarded.…”