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Channel-Envelope Differencing Eliminates Secret Key Correlation: LoRa-Based Key Generation in Low Power Wide Area Networks

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arxiv 1810.08031 v1 pith:Z46KKOIM submitted 2018-10-18 cs.CR

Channel-Envelope Differencing Eliminates Secret Key Correlation: LoRa-Based Key Generation in Low Power Wide Area Networks

classification cs.CR
keywords generationareaenvironmentlpwansnetworkspowerwideable
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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This paper presents automatic key generation for long-range wireless communications in low power wide area networks (LPWANs), employing LoRa as a case study. Differential quantization is adopted to extract a high level of randomness. Experiments conducted both in an outdoor urban environment and in an indoor environment demonstrate that this key generation technique is applicable for LPWANs, and shows that it is able to reliably generate secure keys.

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