… A great deal of study has been done towards it, but security mechanisms in … security
challenges. This study also provides a summary of some major security attacks on security services …

… First, we discuss the VANET security services. Second, we present each security service of
… that indicate the existing issues of VANET security and its solutions, whereas the authors in …

… ad hoc networks, although there is a trend to adopt ad hoc … networks is their vulnerability
to security attacks. In this article, we study the threats an ad hoc network faces and the security …

… the security requirements of ad hoc networks. The focus of the discussion is in the security of
… However in most cases the security services are implemented in higher layers, for instance …

… security servers are destroyed by the enemies. In this paper we design and evaluate a security
framework for multilevel ad hoc wireless networks … to provide robust security services that …

… focus on various security issues in mobile ad hoc networks. We … the security aspects (ie
attacks, mechanisms, and services) … A security service is a service that enhances the security of …

… SECURITY REQUIREMENTS AND SECURITY SERVICES … security requirements and
corresponding security services in … security protection specifically over mobile ad hoc networks. …

… In this section we describe our architecture for ubiquitous security services in wireless ad-hoc
networks. From the cryptographic perspective, our design is based on the concepts of …

… Since these networks share many features, for the sake of … main security challenges common
to all wireless ad-hoc networks. … network technologies, we will highlight the specific security …

… In this article we first review the current standardization process, which covers the methods
of providing security services and preserving driver privacy for Wireless Access in Vehicular …