Poster: Secure Data Sharing with Decentralised Data Ring Fencing

The explosion of data and digital technologies has exacerbated privacy concerns. Traditional access control struggles to keep pace with the complexity of multi-party data sharing, where varying data access rules and privacy policies across institutions create significant challenges - leading to unauthorized and unintended access, especially in multi-party scenarios. Data Ring Fencing, inspired by the financial sector's concept of isolating assets, offers a multi-layered security framework for secure data sharing. It governs data access privileges, regulating who can access what data, for what purpose, and at what cost. However, the current model relies on a central system, requiring complete trust from all participating institutions. This paper addresses these limitations by proposing a Decentralized Data Ring Fencing approach that leverages permissioned blockchains. This eliminates the need for a central authority, a critical factor as it removes the inherent single point of failure and the requirement for absolute trust in a central system.