Nowadays, technology advances increasing the complexity of electronic systems
in modern automobiles. In these systems, they mostly focus on fast and reliable
operation, but this allows malicious intrusion and manipulation of the vehicle network.
Even from a huge distance, it is possible to influence the operation of a car's network in
such a way that the physical integrity of those in it can be compromised. It may also
result, that malicious attackers can blackmail politicians with great power, wealthy
business people or even ordinary citizens.
The purpose of my thesis is to provide a detailed description of the problem and
to present a new way of solving the topic, based on signature-based examinations. In
addition to presenting the theoretical operation of this solution, I also present my
practical implementation, which can serve as a guideline and as a starting point for the
implementation of these types of systems. In order to ensure maximum clarity, my
thesis provides basic knowledge about the network of cars and describes the most
common intrusion detection systems.