Abstract:

As the quantum computing technology advances rapidly, the traditional communication network encryption system faces unprecedented challenges. The immense power of quantum computers can easily break widely-used public-key encryption algorithms based on large integer factorization and discrete logarithm problems. To counter this threat, the post-quantum cryptography (PQC) technology has emerged. This article firstly explores strategies and key technologies for introducing PQC into communication networks. It analyzes the architecture and potential vulnerabilities of current security systems in these networks and proposes a phased PQC implementation strategy, including hybrid encryption during the transition. Then, it studies the fusion of PQC algorithms with communication protocols, and explores PQC application scenarios in communication networks. Finally, it offers suggestions for PQC development. This provides theoretical and practical guidance for applying PQC in real-world communication networks.

Key words: PQC, communication network, upgrade and migration