  We surveyed and presented the state-of-the-art VC systems, security and
privacy architectures and technologies, emphasizing on security and privacy
challenges and their solutions for P2P interactions in VSNs towards
standardization and deployment. We note that beyond safety applications that
have drawn a lot of attention in VC systems, there is significant and rising
interest in vehicle-to-vehicle interaction for a range of transportation
efficiency and infotainment applications, notably LBS as well as a gamut of
services by mobile providers. While this enriches the VC systems and the user
experience, security and privacy concerns are also intensified. This is
especially so, considering (i) the privacy risk from the exposure of the users
to the service providers, and (ii) the security risk from the interaction with
malicious or selfish and thus misbehaving users or infrastructure. We showed
existing solutions can in fact evolve and address the VSN-specific challenges,
and improve or even accelerate the adoption of VSN applications.
