Quantum-Resistant TLS 1.3: A Hybrid Solution Combining Classical, Quantum and Post-Quantum Cryptography

• Published in: 2023 IEEE 28th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD) pp. 246 - 251
• Main Authors: Garcia, Carlos Rubio, Aguilera, Abraham Cano, Olmos, Juan Jose Vegas, Monroy, Idelfonso Tafur, Rommel, Simon
• Format: Conference Proceeding
• Language: English
• Published: IEEE 06-11-2023
• Subjects: classical cryptography; Computational modeling; Conferences; Costs; Hybrid authenticated key exchange; Libraries; post-quantum cryptography; Protocols; Quantum computing; quantum key distribution; quantum-resistant cryptography; Resistance; transport layer security
• ISSN: 2378-4873
• DOI: 10.1109/CAMAD59638.2023.10478407

Hybrid authenticated key exchange combines cryptography key material from different sources (classical, quantum and post-quantum cryptography) to build protocols that are resilient to catastrophic failures, technology advances and future cryptanalytic attacks. In this work, we propose and implement a triple-hybrid version of the transport layer security network protocol TLS 1.3, combining classical and post-quantum cryptography, and quantum key distribution. We evaluate the performance of this triple-hybrid TLS in an experimental network scenario and our analysis shows that the quantum-resistant feature comes at an increased communication cost of approximately 68 % over the total time of the composite handshakes. In exchange, our solution is an enhancement to the TLS 1.3 protocol by adding quantum-resistant cryptography schemes.