Abstract:

In the construction of the external government networks, while the integration of 5G dedicated networks facilitates mobile government operations, it also introduces numerous security challenges. Risks such as unauthorized access, threats to network and device environments, plaintext transmission vulnerabilities, and cross-network attacks significantly hinder the secure and stable operation of government systems. To address these concerns, the 5G dedicated network access solution for the external government networks innovatively incorporates “dual authentication + quantum key” fusion technology, establishing a secure, reliable, efficient, and flexible access framework. This framework not only aligns precisely with the current security demands of government mobile operations, but also accommodates future technological advancements through scalable design. The solution has demonstrated exceptional performance in enhancing security protection, controlling costs, and improving operational efficiency, offering a replicable and scalable secure access solution for data infrastructure development. Furthermore, it plays a demonstration role in promoting innovation in government network security technology and advancing industry standardization.

Key words: quantum key distribution, quantum secure communication, post-quantum cryptography, 5G dedicated network, external government networks