Post-Quantum Cryptography in Telecommunications: Performance, Interoperability, and Migration Risks of Cryptographic Schemes

Abstract

The emergence of quantum computing threatens the security of classical cryptographic systems used in telecommunications, particularly those based on RSA and elliptic curve cryptography. Post-quantum cryptography (PQC) has been proposed as a solution; however, its adoption introduces challenges related to performance, interoperability, and migration risk.

This paper presents an integrated analysis of PQC in telecommunications environments, focusing on three key dimensions: performance, interoperability, and risk. A mixed-method approach is applied, combining experimental evaluation of classical, post-quantum, and hybrid cryptographic schemes with qualitative risk assessment. Key metrics such as latency, bandwidth consumption, and computational overhead are analyzed within communication protocols like TLS.

The study aims to identify trade-offs between security and efficiency, assess interoperability constraints in heterogeneous infrastructures, and evaluate risks associated with migration. Based on the findings, an integrated adoption model is proposed to support the transition toward quantum-resistant telecommunications systems.