Analysis of Keyless Massive MIMO-based Cryptosystem Security.
Valery I. Korzhik, Guillermo B. Morales-Luna, Sergei Tikhonov, Viktor Yakovlev · 2015
Abstract. A cryptosystem for wireless communications, recently pro-posed by T. Dean and A. Goldsmith, is considered. That system can be regarded as a second revolution in cryptography because the confiden-tiality of the messages transmitted over a wireless massive MIMO-based channel is provided by the difference in the space locations of legal and illegal users and it does not require any secret key distribution. How-ever our investigation shows that there is a chance of eavesdropping the cipher texts by using a suboptimal algorithm. Therefore we investigate some additional conditions for channel matrices and additive noises in order to provide a desired security. A combination of wiretap channel coding with a MIMO-based cryptosystem is also considered.