Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
Vehicular Communication (VC) network technology is in the verge of real world
deployment. The technology is aimed at achieving high levels of traffic efficiency
security and comfort for the users of the traffic system. The technology
facilitates exchange of awareness and notification messages among the vehicles
to improve the traffic efficiency and safety of the drivers. However, deployment
of this awesome technology faces several security and privacy risks. The
system is subjected to security risks like replay attacks, nodes sending false
information to the system, denial of service attacks by clogging the networks.
System also faces several privacy challenges in which sensitive user data can
be eavesdropped and also tracing out a particular node using the location data
sent by the node. In this research we focused on protecting the privacy of
the users using the VC system. Several European projects have been working
enforcement approach from Privacy Enabled Capability In Co-Operative Systems
and Safety Applications (PRECIOSA), pseudonym approach from Secure
Vehicular Communication (SeVeCom) and Preparing secure V2X Communication
Systems (PRESERVE) project which integrates the results from both PRECIOSA
and SeVeCom projects are three of those projects considered in this report. This
research is more focused on the pseudonym approach proposed by SeVeCom.
We discuss the impact of pseudonym change on the communication stack, what
other lower layer identifiers need to be changed along with the pseudonym
change, and is there any other ways the attacker can still link the messages
from a particular node to hamper the nodes privacy. Finally after analyzing the
results from the research, we propose a solution to include a new module in the PRESERVE
architecture called Identifier Change Management (IDCM) module to
improve the anonymity of the user participating in the vehicular communication.
2012. , 69 p.