Eavesdropping Against Bidirectional Physical Layer Secret Key Generation in Fiber Communications
Wenxiu Hu, Zhuangkun Wei, Mark Stephen Leeson, Tianhua Xu · 2022 IEEE Photonics Conference (IPC) · 2022
Physical layer secret key exploits the random but reciprocal channel features between legitimate users to encrypt their data against fiber-tapping. We propose a novel tapping-based eavesdropper scheme, leveraging its tapped signals from legitimate users to reconstruct their common features and the secret key.