METODO PARA UNA MONITORIZACION FINA DE LINEAS OPTICAS EN LINEAS DE COMUNICACION A TRAVES DE SISTEMAS QKD.

摘要

Two ends of a QKD system are connected through a private quantum channel using a protocol based on the principles of quantum physics and a conventional channel, both channels being introduced through the same medium using multiplexing techniques, wherein a possible intrusion in the communication is detected by checking the variability of the distribution of exchanged photons between both ends of said private quantum channel and in case of detecting an intrusion due to the risk identified on the communication channel the system launches an alarm. To avoid other attacks another conventional channel different from the quantum channel is further used in order to check the error rate in the exchanges.