Paper Title
Conditional Privacy Preservation in Vanets using Pseudonym and Id-Based Signature

The vehicle owners do not want their personal information such as vehicle names, license plate, speed, positions, moving routes, and user information to be disclosed, in order to safeguard them against any illegal tracing or user profiling. Thus, this information must be protected from any kind of misuse or attacks. For this the obscurity of vehicular nodes should be sustained to preserve privacy of vehicles and their users. Also, we should be able to inspect for accidents or liabilities from non-repudiation. Hence, we present an enhanced conditional privacy preservation scheme for vehicular ad-hoc networks (VANETs). This scheme is a combination of RSA cryptosystem for purpose of secure communication; pseudonyms to assure user's obscurity and ID-based signature for authorities to track misbehaving and suspicious users. Keywords-Conditional Privacy, Identity-Based Signature, Obscurity, Pseudonym, RSA Cryptosystem, Traceability, Vehicular Adhoc Network (VANET).