Secret key generation using channel quantization with SVD for reciprocal MIMO channels

2016 ◽  
Author(s):  
Haji M. Furqan ◽  
Jehad M. Hamamreh ◽  
Huseyin Arslan
Keyword(s):  
Key Generation ◽  
Secret Key ◽  
Mimo Channels ◽  
Secret Key Generation ◽  
Channel Quantization

BloothAir

2021 ◽  
Vol 5 (3) ◽  
pp. 1-22
Author(s):  
Kai Li ◽  
Ning Lu ◽  
Jingjing Zheng ◽  
Pei Zhang ◽  
Wei Ni ◽  
...  
Keyword(s):  
Effective Means ◽  
Quantization Scheme ◽  
Key Generation ◽  
Secret Key ◽  
Secret Key Generation ◽  
Channel Quantization ◽  
Smart Farming ◽  
Secret Keys ◽  
Radio Transceiver ◽  
Mismatch Rate

Thanks to flexible deployment and excellent maneuverability, autonomous drones have been recently considered as an effective means to act as aerial data relays for wireless ground devices with limited or no cellular infrastructure, e.g., smart farming in a remote area. Due to the broadcast nature of wireless channels, data communications between the drones and the ground devices are vulnerable to eavesdropping attacks. This article develops BloothAir, which is a secure multi-hop aerial relay system based on Bluetooth Low Energy ( BLE ) connected autonomous drones. For encrypting the BLE communications in BloothAir, a channel-based secret key generation is proposed, where received signal strength at the drones and the ground devices is quantized to generate the secret keys. Moreover, a dynamic programming-based channel quantization scheme is studied to minimize the secret key bit mismatch rate of the drones and the ground devices by recursively adjusting the quantization intervals. To validate the design of BloothAir, we build a multi-hop aerial relay testbed by using the MX400 drone platform and the Gust radio transceiver, which is a new lightweight onboard BLE communicator specially developed for the drone. Extensive real-world experiments demonstrate that the BloothAir system achieves a significantly lower secret key bit mismatch rate than the key generation benchmarks, which use the static quantization intervals. In addition, the high randomness of the generated secret keys is verified by the standard NIST test, thereby effectively protecting the BLE communications in BloothAir from the eavesdropping attacks.

scholarly journals CSI-based versus RSS-based Secret-Key Generation under Correlated Eavesdropping

2020 ◽  
pp. 1-1
Author(s):  
Francois Rottenberg ◽  
Trung-Hien Nguyen ◽  
Jean-Michel Dricot ◽  
Francois Horlin ◽  
Jerome Louveaux
Keyword(s):  
Key Generation ◽  
Secret Key ◽  
Secret Key Generation
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