Extensible Post Quantum Cryptography Based Authentication

• URL: http://arxiv.org/abs/2505.16112v1
• Date: Thu, 22 May 2025 01:34:17 GMT
• Title: Extensible Post Quantum Cryptography Based Authentication
• Authors: Homer A. Riva-Cambrin, Rahul Singh, Sanju Lama, Garnette R. Sutherland,
• Abstract summary: We introduce a quantum-safe single-shot protocol for machine-to-machine authentication and authorization.<n> operating entirely over insecure channels, this protocol enables the forward-secure establishment of tokens.<n>This study lays the groundwork for scalable, resilient, and future-proof identity infrastructures in a quantum-enabled world.
• Score: 1.7449047573672085
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Cryptography underpins the security of modern digital infrastructure, from cloud services to health data. However, many widely deployed systems will become vulnerable after the advent of scalable quantum computing. Although quantum-safe cryptographic primitives have been developed, such as lattice-based digital signature algorithms (DSAs) and key encapsulation mechanisms (KEMs), their unique structural and performance characteristics make them unsuitable for existing protocols. In this work, we introduce a quantum-safe single-shot protocol for machine-to-machine authentication and authorization that is specifically designed to leverage the strengths of lattice-based DSAs and KEMs. Operating entirely over insecure channels, this protocol enables the forward-secure establishment of tokens in constrained environments. By demonstrating how new quantum-safe cryptographic primitives can be incorporated into secure systems, this study lays the groundwork for scalable, resilient, and future-proof identity infrastructures in a quantum-enabled world.

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