NDLI: Moving window scheme for extracting secret keys in stationary environments

Content Provider	IET Digital Library
Author	Cheng, Longwang Li, Wei Ma, Dongtang Wei, Jibo Liu, Xu
Abstract	In this study, the authors propose a novel secret key generation scheme to address the consecutively identical secret key bits problem in stationary environments. First, by randomising the phase of probe signals with stochastic coefficients, they sum the channel estimates in a moving window to get new records with remarkable fluctuations. Then, they propose an adaptive equal probability quantisation approach to ensure the randomness of the secret key. Furthermore, considering the worst scenario, the security of the scheme is evaluated in terms of the adversary's mean square error (MSE) for the single-antenna system. While for the multi-antenna system, they propose an artificial noise-aided strategy to compromise the adversary's MSE performance. The simulation results reveal that the security of the scheme is guaranteed and a better security performance is achieved compared with the prior works. Finally, they validate the feasibility of the proposed scheme in real stationary environments. The testing results show that their scheme achieves remarkable performance in bit mismatch rate and key generation rate, and the generated keys pass the National Institute of Standards and Technology test.
Starting Page	2206
Ending Page	2214
Page Count	9
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 16, Nov (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.1219
Journal	IET Communications
Publisher Date	2016-11-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Equal Probability Quantisation Antenna Array Artificial Noise-aided Strategy Bit Mismatch Rate Channel Estimate Channel Estimation Communication Channel Equalisation And Identification Cryptography Data Security Identical Secret Key Bits Problem Interpolation And Function Approximation Key Generation Rate Mean Square Error Method Mean Square Error Performance Moving Window Scheme MSE Performance Multiantenna System NIST Test Numerical Analysis Phase Randomisation Private Key Cryptography Probability Radio Link And Equipment Secret Key Extraction Secret Key Generation Secret Key Randomness Single-antenna System Stationary Environments Statistics Stochastic Coefficient Stochastic Linearised SCUC Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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