Volume 21, Issue 3 (JIAEEE Vol.21 No.3 2024)
Journal of Iranian Association of Electrical and Electronics Engineers 2024, 21(3): 0-0 |
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Khalili-Tirandaz A, Kuhestani A. A Physical Layer Scheme for Secret Key Generation Based on Discrete Random Phase Injection. Journal of Iranian Association of Electrical and Electronics Engineers 2024; 21 (3)
URL: http://jiaeee.com/article-1-1494-en.html
URL: http://jiaeee.com/article-1-1494-en.html
Qom University of Technology
Abstract: (46 Views)
In static point-to-point communications, secret key generation faces two challenges: low key generation rate and the presence of key disclosure regions. For mitigating the first challenge, the schemes which are based on local random generator could be used. One of these schemes is the random phase injection, where the random phases are exchanged between the communicating parties for channel probing. In this paper, a novel key generation scheme is presented which is based on discrete phased-probing signals. Then after defining key disclosure regions, we study the security of the proposed scheme with Geometric secrecy approach. The simulation results show that the secrecy regions increase significantly if the probing channel is excused on multi-frequencies instead of a single frequency. Moreover, it is shown that the idea of channel probing on multi-frequencies increases the key entropy. At the end of paper, some research directions are introduced to study or improve the security of key generation schemes.
Keywords: Secret key generation, discrete random phase injection, geometric secrecy, key disclosure region
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