Data security issues in VANET

Vehicular Adhoc Network (VANET) is becoming a focusing point in researcher communities. Due to various kinds of applications including safety driving, parking lot finder, real-time route finder, it is becoming popular in recent years. Safety applications based on vehicular network communication are a major aspect of future innovation. VANET provides vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I)[1] communication. These applications are foreseen to improve traffic safety considerably, and to enable innovative infotainment applications and business models. Security is concerned with protection against malicious manipulation of IT systems and plays an important role when designing and implementing such applications. VANET applications need security functionality in order to protect the driver, the manufacturer, component suppliers, and service providers. Safety applications must be protected to avoid malicious manipulation, potentially causing harm to the vehicle driver, and commercial applications must be protected to prevent loss of revenue. In this paper we present Security issues of providing data security in VANET followed by attacker and cryptographic protocols.