A Survey on Quantum-Safe Cryptographic Mechanisms: Building Blocks and Applications

• URL: http://arxiv.org/abs/2609.11991v1
• Date: Wed, 09 Sep 2026 18:14:20 GMT
• Title: A Survey on Quantum-Safe Cryptographic Mechanisms: Building Blocks and Applications
• Abstract summary: Fault-tolerant quantum computers may enable widely used cryptographic algorithms to be broken.<n>This poses a threat to existing infrastructure, motivating the development of mechanisms that can withstand quantum-computer cybersecurity risks.<n>We survey the state of the art in quantum-safe cryptographic mechanisms, existing applications targeting migration, and open challenges.
• Score: 0.7583279435734176
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The possible emergence of fault-tolerant quantum computers may enable widely used cryptographic algorithms to be broken. These algorithms for public key encryption and digital signatures could be exposed if an efficient algorithm is employed. This poses a threat to existing infrastructure, motivating the development of mechanisms that can withstand quantum-computer cybersecurity risks. However, the transition to new security mechanisms is still underway and faces many challenges, including identifying which applications are under threat and implementing agile, scalable migration processes. In this work, we survey the state of the art in quantum-safe cryptographic mechanisms, existing applications targeting migration, and open challenges. We examine the building blocks commonly used to integrate quantum-safe mechanisms into existing applications and categorize them by the security mechanisms they employ. Next, we systematically review existing migrations into quantum-safe schemes and categorize them by application domain, including Telecommunications, the Internet of Things, and Blockchains. Finally, we summarize the challenges that must be addressed to enable a successful migration to quantum-resistant mechanisms, as well as the motivations for pursuing this migration.

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