Secret key agreement based on a communication through wireless MIMO-based fading channels

Guillermo Morales-Luna, Victor Yakovlev, Valery Korzhik, Pavel Mylnikov
2016 Proceedings of the 2016 Federated Conference on Computer Science and Information Systems  
The method of key sharing between a mobile unit and a base station through a wireless MIMO-based fading channel is investigated. The description of a key distribution protocol is given. The expression to estimate the correct key bit agreement based on the use of guard interval is proved. Statistical properties of the key string are tested using the NIST criteria. Impossibility of key string eavesdropping by illegal users is guaranteed due to small values of correlation between legal and
more » ... n legal and eavesdropper carrier phases. Numerical examples show that the MIMO system with 8 antennas is able to agree 256 bits with a reliability value 0.99 for SNR equal to 35 dB. This experiment confirms that the MIMO scenario is especially effective for secret key distribution.
doi:10.15439/2016f85 dblp:conf/fedcsis/Morales-LunaYKM16 fatcat:nozsam626jhahcn2rumlilwkyi