Decentralized identity for open road tolling

• Autor(a) principal: Bernardino, Joana Raquel Gomes
• Data de Publicação: 2021
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10773/32333
• topic: Sovereign identity; Decentralized identity; SSI; IoT; Crypto payments; IOTA; Automatic tolling

Recent advances in wireless communications and cryptographic technologies have stemmed the emergence of innovative solutions for vehicular applications. The arrival of the fth generation of cellular communications (5G) enables a wide range of improvements that will result in massive levels of connectivity with very heterogeneous connection patterns. The emergence of cryptocurrencies and new paradigms of digital identity based on e orts in the eld of cryptography will also be decisive for the future of digital transactions between people, organizations, and \things". One area where these innovations will have a high impact is in vehicular applications, especially with critical safety requirements such as automatic road tolls. The sporadic nature of the interaction between vehicles and the charging gantry, combined with the requirement of anonymity imposed by current legislation, encourage the search for decentralized solutions to establish trust between IoT devices. The application of the Self-Sovereign Identity (SSI) paradigm enables IoT devices to prove their identity to each other without the intervention of a central entity, taking advantage of their physical proximity at the time of interaction. This paradigm limits data exposure to a minimum, placing the user/device in permanent control of the exposed information. This dissertation explores and evaluates a toll payment solution based on the SSI paradigm, using the Hyperledger Indy platform and the use of the IOTA cryptocurrency. Toll payment is made through a developed mobile application that integrates both technologies. The evaluation results show the high feasibility of integrating the system in real highway scenarios, and it can also be easily adapted to pay parking systems in the context of cities, or similar applications.