Securing vehicular communication in ubiquitous-transportation sensor network

VANETs (vehicular ad hoc networks) is a promising technology to facilitating road safety and traffic management for drivers and passengers. Recently, it is considered that security and protection of private user information are a prerequisite for the deployment of the technology. This is because the benefits of VANETs could be disrupted or disabled, even by relatively incapable adversaries. Thus one of the ultimate goals in the design of such network is to protect various malicious abuses and security attacks. In this paper, we present secure vehicular communication scenario which is one of the VANETs structures. And then we address four security modules which are the components of this scenario. The proposed protocols in security modules have a small quantity of the computational burden and prevent impersonation attacks and message modification attacks. Finally, implementation and security analysis what we performed are introduced.