Abstract:

As a new technology based on physical methods key distribution, superlattice key distribution system can generate keys through the chaotic effect of superlattice physical devices, and the security of key distribution process is guaranteed by the physical non-clonability of devices. Therefore, superlattice key distribution system enjoys a broad prospect. In order to solve the problem that the superlattice key distribution system cannot be a long-distance network in the process of real-time key distribution, this paper studied the virtual local area network(VLAN) and the virtual extensible local area network(VXLAN). In the superlattice key distribution system, the VXLAN technology under the modern SDN architecture was used to logically divide a new network for both parties of the communication, so that under different LANs, both parties of the communication can communicate real-time without relying on public network IP and domain name in cross-network key distribution, which solves the limitations of the key distribution in different places.

Key words: superlattice key distribution, physical methods, virtual local area network, SDN architecture