Tipo di tesi
Tesi di laurea magistrale
Titolo
Towards a Defense-in-Depth Strategy: Using Passive and Active Metasurfaces to Shield against Electromagnetic Side-Channel Attacks
Dipartimento
INGEGNERIA DELL'INFORMAZIONE
Corso di studi
CYBERSECURITY
Parole chiave
- electromagnetism
- filter
- frequency-selective surface
- information leakage
- metamaterial
- physical layer
- physical layer security
- shielding
- shielding effectiveness
- side-channel attack
- unwanted emission
Data inizio appello
14/04/2025
Consultabilità
Non consultabile
Data di rilascio
14/04/2028
Riassunto (Italiano)
Traditionally, when thinking about cybersecurity and the ways to defend valuable assets the common thought is directed towards software tools. However, considering that attackers' skills are improving at a very fast pace it is essential to broaden the defender's mindset by paying attention also to those cyber threats originating from the lowest layer of the protocol stack: the physical layer. This work focuses on side-channel attacks exploiting electromagnetic waves and proposes a methodology to address these threats based on the theoretical concept of shielding. It discusses a step-by-step process to design, build and experimentally validate the prototype of a frequency-selective surface capable of shielding against electromagnetic waves at specific frequencies. Furthermore, it is taken even a step forward by developing a reconfigurable version of the metamaterial, whose operational state can be modified according to the user's needs.
