Data security in ITS telecommunications solutions

Intelligent Transport Systems (ITS) solutions expect availability of the secure seamless communications solutions typically covering widely spread areas. Different solutions require different levels of telecommunications service quality. These parameters have to correspond with ITS service performance parameters required by specific service. Even though quite extensive range of wireless data services with reasonable coverage are provided by public telecommunications providers practically all services are provided with no guaranteed data service quality and security. ITS requirements can be better resolved if typically used public solution is combined with both other public as well as private services where and when it is needed. Such solution requires implementation of relevant flexible system architecture supported by the efficient decision processes. Paper is concentrated on the telecommunications security issues with dynamically changing wide area networking. Expected level of security depend on relevant ITS services requirements. It is well known fact that data volumes transferred both in private data vehicle on board networks as well as between vehicles and infrastructure or other vehicles significantly and progressively grow. Such trend leads to increase of the of the fatal problems appearance probability if security of the wide area networks is not relevantly treated. Probability of hazards appearances grow if vehicles networks are integrated in the dynamically organized wide area networks. That is reason why relevant communications security treatment becomes crucial part of the ITS telecommunications solution. Besides of available "off shelf" security tools solution based on non-public universal identifier with dynamical extension and data selection according to actor role or category is presented.