TY - GEN
T1 - Enabling unauthorized RF transmission below noise floor with no detectable impact on primary communication performance
AU - Chang, Doohwang
AU - Bakkaloglu, Bertan
AU - Ozev, Sule
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - With increasing diversity of supply chains from design to delivery, there is an increasing risk of unauthorized changes within an IC. One of the motivations for this type change is to learn important information (such as encryption keys, spreading codes) from the hardware and pass this information to a malicious party through wireless means. In order to evade detection, such unauthorized communication can be hidden within legitimate bursts of transmit signal. In this paper, we present a stealth circuit for unauthorized transmissions which can be hidden within the legitimate signal. A CDMA-based spread spectrum with a CDMA encoder is implemented with a handful of transistors. We show that the unauthorized signal does not alter the circuit performance while being easily detectable by the malicious receiver.
AB - With increasing diversity of supply chains from design to delivery, there is an increasing risk of unauthorized changes within an IC. One of the motivations for this type change is to learn important information (such as encryption keys, spreading codes) from the hardware and pass this information to a malicious party through wireless means. In order to evade detection, such unauthorized communication can be hidden within legitimate bursts of transmit signal. In this paper, we present a stealth circuit for unauthorized transmissions which can be hidden within the legitimate signal. A CDMA-based spread spectrum with a CDMA encoder is implemented with a handful of transistors. We show that the unauthorized signal does not alter the circuit performance while being easily detectable by the malicious receiver.
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U2 - 10.1109/VTS.2015.7116257
DO - 10.1109/VTS.2015.7116257
M3 - Conference contribution
AN - SCOPUS:84940398764
T3 - Proceedings of the IEEE VLSI Test Symposium
BT - Proceedings - 2015 IEEE 33rd VLSI Test Symposium, VTS 2015
PB - IEEE Computer Society
T2 - 2015 33rd IEEE VLSI Test Symposium, VTS 2015
Y2 - 27 April 2015 through 29 April 2015
ER -