DocumentCode :
3459821
Title :
Threat on Physical Layer Security: Side Channel vs. Wiretap Channel
Author :
Peng Luo ; Huiyun Li ; Guoqing Xu ; Lei Peng
Author_Institution :
Inst. of Software, Grad. Univ. of Chinese Acad. of Sci., Beijing, China
fYear :
2013
fDate :
3-5 Dec. 2013
Firstpage :
295
Lastpage :
300
Abstract :
The location-specific channel state information can be exploited to generate secret keys for wireless system services, In the multipath wireless environment. Its secrecy capacity was usually studied with the wiretap channel model. This paper proposes a side channel model which is even more threatening to the security of the physical layer randomness based secret keys. We present the information-theoretic analysis of the side channel model, and compare it with the wire-tap model. The analysis indicates that the secret key capacity of the side-channel will be lower than that of the wire-tap channel, especially with a fading scenario. We conduct MATLAB simulation of physical layer randomness based key generation and SPICE simulation of key extraction to observe the side channel leakage of the circuit. The simulation results confirm the consistency of the key bits, thus verifying the feasibility of our proposed side-channel attack scheme against the physical layer security.
Keywords :
fading channels; private key cryptography; telecommunication security; MATLAB simulation; SPICE simulation; fading scenario; information-theoretic analysis; key bits consistency; key extraction; key generation; location-specific channel state information; multipath wireless environment; physical layer randomness; physical layer security; secrecy capacity; secret keys; side channel leakage; side channel model; side-channel attack scheme; wireless system services; wiretap channel model; Channel state information; Communication system security; Fading; Physical layer; Security; Upper bound; Wireless communication; Physical layer security; channel state information (CSI); side-channel analysis; wiretap channel;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computational Science and Engineering (CSE), 2013 IEEE 16th International Conference on
Conference_Location :
Sydney, NSW
Type :
conf
DOI :
10.1109/CSE.2013.54
Filename :
6755232
Link To Document :
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