Problems of security in quantum key distribution with floating basis protocol

摘要

This work is dedicated to the secrecy analysis of the protocol with a very large number of states and high operation speed rate. It can be called floating basis protocol. In this protocol some secret information allows to establish high speed quantum key distribution. This secret information should be prepared by some other way. It allows to achieve better level of the secrecy. Due to pre-distributed secret information it can resist the men in the middle attack because of absence of the basis reconciliation. Problems of experimental realization are discussed too.