Description
Date depot: 1 janvier 1900
Titre: Exploration of Interactions Between Electromagnetic Side Channels and Radio Transceivers
Directeur de thèse:
Aurelien FRANCILLON (Eurecom)
Domaine scientifique: Sciences pour l'ingénieur
Thématique CNRS : Non defini
Resumé:
This thesis will explore new side channel that affects mixed-signal chips used in widespread wireless communication protocols, such as Bluetooth and WiFi. This increasingly common type of chip includes the radio transceiver along with digital logic on the same integrated circuit. In such systems, the radio transmitter may unintentionally broadcast sensitive information from hardware cryptographic components or software executing on the CPU. The well known electromagnetic (EM) leakage from digital logic is inadvertently mixed with the radio carrier, which is amplified and then transmitted by the antenna. We call the resulting leak “screaming channels”. Attacks exploiting such a side channel may succeed over a much longer distance than attacks exploiting usual EM side channels. The root of the problem is that mixed-signal chips include both digital circuits and analog circuits on the same silicon die in close physical proximity. While processing data, the digital circuits on these chips generate noise, which can be picked up by noise-sensitive analog radio components, ultimately leading to leakage of sensitive information.
Doctorant.e: Camurati Giovanni