Railway Public Key Infrastructure Recommendations for Interoperability

Summary

The leaflet has been drawn up for UIC members who plan to implement, or have implemented, a public key infrastructure in their organisations. It provides implementers with the minimum recommended security requirements to allow interoperability between Public Key Infrastructures (PKIs).

The leaflet addresses three main points. The first describes the building of a PKI for data exchange on a domestic level between RUs, clients and IMs. The second is dedicated to the interoperability of PKIs and the minimum interoperability security requirements (MISR) to guarantee secure exchange. And the third point, comprised of appendices, summarises a recommended set of MISR to be respected and an example of a Bridge Certificate Authority (BCA) as it could be provided by the UIC.