Privacy-preserving Analytics for Data Markets using MPC
This addresses privacy concerns for data market stakeholders, but it is incremental as it builds on existing MPC techniques.
The paper tackles the challenge of building data markets under privacy regulations like GDPR by proposing a privacy-preserving architecture using multi-party computation (MPC) for secure data computations, and it includes a privacy-risk analysis using the LINDDUN methodology.
Data markets have the potential to foster new data-driven applications and help growing data-driven businesses. When building and deploying such markets in practice, regulations such as the European Union's General Data Protection Regulation (GDPR) impose constraints and restrictions on these markets especially when dealing with personal or privacy-sensitive data. In this paper, we present a candidate architecture for a privacy-preserving personal data market, relying on cryptographic primitives such as multi-party computation (MPC) capable of performing privacy-preserving computations on the data. Besides specifying the architecture of such a data market, we also present a privacy-risk analysis of the market following the LINDDUN methodology.