PRIVACY-PRESERVING MOBILITY AS A SERVICE SUPPORTED BY BLOCKCHAIN

Smart overview of the Invention

A communication network node is designed to facilitate the provision of data to a distributed ledger. It incorporates circuitry that effectively manages user data by categorizing it into sensitive and non-sensitive types. The primary function of this node is to securely transmit only the non-sensitive user data to the distributed ledger, thereby enhancing privacy while maintaining data utility.

Distributed Ledger Technology and Mobility as a Service

Distributed ledger technology (DLT), including blockchain, is increasingly utilized in various applications, including Mobility as a Service (MaaS). MaaS allows users to access multiple transportation options without owning a vehicle, integrating public and private transport services. The application of DLT in MaaS can improve transparency and efficiency among service providers by maintaining a shared record of transactions and journeys.

Challenges in Data Privacy

While DLT offers benefits for recording transactions, it also poses significant challenges regarding personal data protection. The nature of blockchains typically allows all members access to recorded data, which can conflict with privacy requirements. Striking a balance between accurately recording passenger journeys and protecting sensitive information is crucial, especially under regulations like the General Data Protection Regulation (GDPR).

Methods for Data Anonymization

To address privacy concerns, the proposed system incorporates methods for anonymizing and pseudonymizing user data. Sensitive information is kept inaccessible to unauthorized parties, ensuring that personal identifiers are not exposed within the distributed ledger. This approach allows for essential journey records to be maintained while safeguarding user confidentiality.

Conclusion and Future Implications

The integration of privacy-preserving mechanisms within DLT for MaaS applications represents a significant advancement in addressing the dual needs of data accessibility and user privacy. As mobility services continue to evolve, the ongoing development of such technologies will play a critical role in ensuring user trust and compliance with data protection standards.