Title: QKD system network
Application Number: 200580021506 Application Date: 2005.06.28
Publication Number: 1977488 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H04L9/00;H04K1/00
Applicant(s) Name: MAGIQ Technologies Inc. Address:
Inventor(s) Name: Vig Harry;Berzanskis Audrius
Attorney & Agent: zhaoke
Abstract:
    QKD system networks ( 50, 200, 300 ) and methods of communicating between end-users (P 1 , P 2 ) over same are disclosed. An example QKD system network includes a first QKD station (A 1 ) and a second QKD station (A 2 ) with a relay station ( 58 ) in between. The relay station includes a single third QKD station (B) and an optical switch ( 55 ). The optical switch allows the third QKD station to alternately communicate with the first and second QKD stations so as to establish a common key between the first and second QKD stations. The end-users are coupled to respective QKD stations A 1 and A 2 . A secret key (S) is shared between P 1 and P 2 by QKD station B being able to independently form keys with A 1 and A 2 . This basic system, represented as P 1 -A 1 -B-A 2 -P 2 , can be expanded into more complex linear networks, such as P 1 -A 1 -B 1 -A 2 -B 2 -P 2 with B 1 and A 2 making up the relays. The basic QKD system network can also be expanded into multi-dimensions.
Time: 11
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