Method for generating a secret key for encrypted wireless communications

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United States of America Patent

PATENT NO 10404457
APP PUB NO 20170338956A1
SERIAL NO

15600680

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Abstract

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The method for generating a secret key for encrypted wireless communications is a physical layer technique that exploits channel randomness between two nodes, the channel being characterized by reciprocity between the two nodes. Reference signals exchanged by the two nodes are used to faun a channel estimate, including gain location and phase location. The gain and phase locations are compared to threshold values, and locations exceeding the respective thresholds are stored in vectors. The moving differences between gain and phase locations at adjacent sampling times define secondary random processes. The moving difference values are quantized and converted to bit streams, which are concatenated to generate the secret key. Measures are provided to reduce parity errors, thereby reducing the bit mismatch rate (BMR).

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Patent Owner(s)

  • QATAR UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Badawy, Ahmed Doha, QA 5 14
Chiasserini, Carla Fabiana Turin, IT 3 10
Elfouly, Tarek Doha, QA 3 14
Khattab, Tamer Doha, QA 7 19
Mohamed, Amr Doha, QA 4 13
Trinchero, Daniele Turin, IT 3 14

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