Research on Automatically Switched Optical Network Security Based on Quantum Key Distribution

Research on Automatically Switched Optical Network Security Based on Quantum Key Distribution

연구 분야: Cryptography

학회: ICCNS '19: Proceedings of the 2019 9th International Conference on Communication and Network Security

In recent years, many eavesdropping and interception incidents against optical networks have shaken people's understanding of optical network security. The security of optical networks is attracting more and more researchers' attention. Aiming at the security problems in automatically switched optical network (ASON), this paper proposes a three-layer ASON secure communication model that separates the control plane, management plane and transport plane, and a quantum key distribution (QKD) mechanism based on the model. The ASON intelligent software controller divides the classic channel into three types of channels: quantum signal channel (QSCh), pulic interaction channel (PICh) and traditional data channels (TDCh), which are used for quantum transmission, quantum bit synchronization and data transmission separately, and the session key provided by the ASON intelligent network element through the QKD mechanism, The data is encrypted to achieve secure transmission of ASON classic channel data. The effects of QKD mechanism on ASON under different quantum signal source (QSS) code rate, load and intelligent network element (INU) node spacing are simulated and analyzed. The results show that the scheme guarantees the security of the system while increasing the finite delay and reducing the load and has practical feasibility.