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This document specifies a methodology to define ITS-S communication profiles (ITS-SCPs) based on standardized communication protocols to interconnect trusted devices. These profiles enable secure information exchange between such trusted devices, including secure low-latency information exchange, in different configurations. The present document also normatively specifies some ITS-SCPs based on the methodology, yet without the intent of covering all possible cases, in order to exemplify the methodology.

Configurations of trusted devices for which this document defines ITS-SCPs include:

a) ITS station communication units (ITS-SCU) of the same ITS station unit (ITS-SU), i.e. station-internal communications;

b) an ITS-SU and an external entity such as a sensor and control network (SCN), or a service in the Internet;

c) ITS-SUs.

Other ITS-SCPs can be specified at a later stage.

The specifications given in this document can also be applied to unsecured communications and can be applied to groupcast communications as well.