TIaaS: Secure Cloud-assisted Traffic Information Dissemination in Vehicular Ad Hoc Networks

In the recent past, a new concept termed as VANET-based clouds evolved from traditional VANET incorporating both VANET and cloud computing technologies in order to provide vehicle drivers, passengers, and consumers with safe, reliable, and infotainment-rich services while driving on the roads. In this paper, we use a framework of VANET-based clouds proposed by Hussain et al. namely VuC (VANET using Clouds) and define another layer TIaaS (Traffic Information as a Service) atop the cloud computing stack. TIaaS layer provides vehicular nodes (more precisely subscribers) with fine-grained traffic information in a secure way. Additionally our proposed scheme provides security, privacy, and conditional anonymity which are of prime concern in VANET clouds.