Efficient Key Generation by Exploiting Randomness From Channel Responses of Individual OFDM Subcarriers

@article{Zhang2016EfficientKG,
  title={Efficient Key Generation by Exploiting Randomness From Channel Responses of Individual OFDM Subcarriers},
  author={Junqing Zhang and Alan J. Marshall and Roger F. Woods and Trung Quang Duong},
  journal={IEEE Transactions on Communications},
  year={2016},
  volume={64},
  pages={2578-2588}
}
Key generation from the randomness of wireless channels is a promising technique to establish a secret cryptographic key securely between legitimate users. This paper proposes a new approach to extract keys efficiently from the channel responses of individual orthogonal frequency-division multiplexing (OFDM) subcarriers. The efficiency is achieved by: 1) fully exploiting randomness from time and frequency domains and 2) improving the cross-correlation of the channel measurements. Through the… CONTINUE READING
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