A Secure Personal-Data Trading System Based on Blockchain, Trust, and Reputation
Gustavo F. Camilo, Gabriel Antonio F. Rebello, Lucas Airam C. de Souza, Otto Carlos M. B. Duarte · 2020
Every citizen has the right to privacy and, therefore, the right to control their personal information, deciding to whom, when, and where their information is available. This paper proposes a secure, agile, and effective system for a distributed, automatic, and transparent data trading between domains using blockchain, smart contracts, trust, and reputation. We develop and implement a prototype of a trust and reputation system based on real-life interactions. The results show that the proposed system provides security and privacy in a quick and distributed way, performing hundreds of transactions per second, and effectively punishing malicious behavior.