Contribuții cu privire la securitatea comunicațiilor telefonice mobile de nouă generație / Contributions on the security of next generation mobile telephone communications

Summary of the PhD thesis: The thesis aims to analyze fundamental elements of operation and security of wireless communications networks, to be used in practical experimental scenarios, applied for communication standards available on mobile operators in Romania. As a novelty, it is proposed to apply the radio fingerprinting technique of the tested mobile devices, detailing the main parameters of the networks, namely the radio availability of mobile operators, through the integrated provision of data services through base stations and open APN. In addition, radio measurements were carried out in the main districts of Bucharest (5 measuring points), to determine the level of signal coverage of mobile operators, to test the internet speed for each technology available at the measurement point, respectively to determine the degree of use of mobile devices based on the IOT-WiFi-BLE ecosystem. Also, an intelligent jamming system for Denial of Services attacks, on radio link, was developed and successfully tested, to prove to the public the easiness of with which they can become victims of attackers when using wireless networks. Interesting and practical counter measurements were provided, for using wireless networks to protect privacy and subscribers personal data