Abstract
In this paper, we investigate the problem of secret key generation under an injection attack, which refers to tampering of pilot signals over the air so that part of the shared randomness observed at the legitimate parties is controlled by the adversary. It has been shown that to launch such an attack, an adversary only needs one extra antenna, compared to the legitimate parties, in a single input single output (SISO) network. In this work, we generalize this result for the multiple input multiple output (MIMO) case. Furthermore, we propose pilot randomization as a means to protect against injection attacks by reducing them to jamming attacks that constitute a less serious threat. Finally, we derive a closed-form expression for the secret key rate of the investigated MIMO setting.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
