QUANTUM CODE MULTINODE NETWORK, AND METHOD OF DISTRIBUTING KEY ON MULTINODE NETWORK, AND QUANTUM CODER

摘要

PROBLEM TO BE SOLVED: To provide a method of holding a secret key, in common between two parties by quantum codes over a multinode network. SOLUTION: In the conventional common key distribution system using quantum codes, the application scope is limited to the exclusive circuit communication between a transmitter and a receiver in a pair. According to this system, a secret key of a common key code can be held in common between any two parties on the multinode network safely, unconditionally.