Migrating Software Systems towards Post-Quantum-Cryptography -- A Systematic Literature Review

• URL: http://arxiv.org/abs/2404.12854v2
• Date: Mon, 24 Jun 2024 09:49:46 GMT
• Title: Migrating Software Systems towards Post-Quantum-Cryptography -- A Systematic Literature Review
• Authors: Christian Näther, Daniel Herzinger, Stefan-Lukas Gazdag, Jan-Philipp Steghöfer, Simon Daum, Daniel Loebenberger,
• Abstract summary: A migration to post-quantum-cryptography (PQC) is necessary for networks and their components. Recent standardization efforts already push quantum-safe networking forward. However, the literature is still not in consensus about definitions and best practices.
• Score: 2.4739484546803334
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Networks such as the Internet are essential for our connected world. Quantum computing poses a threat to this heterogeneous infrastructure since it threatens fundamental security mechanisms. Therefore, a migration to post-quantum-cryptography (PQC) is necessary for networks and their components. At the moment, there is little knowledge on how such migrations should be structured and implemented in practice. Our systematic literature review addresses migration approaches for IP networks towards PQC. It surveys papers about the migration process and exemplary real-world software system migrations. On the process side, we found that terminology, migration steps, and roles are not defined precisely or consistently across the literature. Still, we identified four major phases and appropriate substeps which we matched with also emerging archetypes of roles. In terms of real-world migrations, we see that reports used several different PQC implementations and hybrid solutions for migrations of systems belonging to a wide range of system types. Across all papers we noticed three major challenges for adopters: missing experience of PQC and a high realization effort, concerns about the security of the upcoming system, and finally, high complexity. Our findings indicate that recent standardization efforts already push quantum-safe networking forward. However, the literature is still not in consensus about definitions and best practices. Implementations are mostly experimental and not necessarily practical, leading to an overall chaotic situation. To better grasp this fast moving field of (applied) research, our systematic literature review provides a comprehensive overview of its current state and serves as a starting point for delving into the matter of PQC migration.

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