Secure Credential Management System (SCMS) Interoperability

The Secure Credential Management System (SCMS) Interoperability project will work with each of the United States SCMS Vendors to conduct testing that demonstrates interoperability between each of the SCMS Vendors certificates. In response to lessons learned from the single root certificate authority system originally created to support the CV Pilot projects, IEEE 1609.2.1 was developed with mechanisms that allow multiple SCMS vendor's root certificate authorities to be trusted within the system which enables interoperability between the different vendor's certificates. This is accomplished through a Certificate Trust List (CTL), and this project will develop a CTL that supports all participating SCMS vendor's root CA's, and then conduct testing that demonstrates that messages signed with one SCMS vendors certificates will be accepted by a device using another SCMS vendor's certificates and generate in-vehicle safety warnings that drivers can react to. The SCMS vendor community has just begun providing IEEE 1609.2.1 compatible certificates and no multi-vendor CTL has been developed yet nor has interoperability between the different SCMS vendors been demonstrated yet. This project would also provide optional follow-on activities where multi-vendor SCMS interoperability is important such as misbehavior detection (MBD) and certificate revocation list (CRL) generation and distribution.

• TBD