Trust Provisioning in the Transport Infrastructure

In any security process the role of trust anchors and trust roots have a complex interaction and applying them to the transport domain where many different forms of trust relationship have to work together is going to be one of greatest of the problems to surmount. ITS and CAV are data centric information systems in which the provenance of the data in the system is key to the success of the system. Provenance and integrity are underpinnings of trust, but in CAV and ITS there is no a priori knowledge of the source and value of data. This means that the provenance of a signal or message from the infrastructure is unlikely to be tested in advance and the verification of trust needs to be applied on demand for each message. Determining trust distribution in the transport infrastructure is one of the biggest unanswered questions regarding the viability of CAV.