Department of War Prepares for Post-Quantum Cryptography Migration - Homeland Security Today

AI and Advanced TechCybersecurityCybersecurity and Infrastructure Security Agency Department of War Prepares for Post-Quantum Cryptography Migration By Matt Seldon December 15, 2025 The U.S. Department of War (DoW) has announced plans to transition to post-quantum cryptography (PQC) to safeguard its systems against the risks posed by quantum computing. A new memorandum outlines the steps needed to secure U.S. defense communications and operations in the face of emerging quantum threats. The Department of War CIO will oversee the migration, focusing on identifying vulnerabilities in existing cryptographic systems and ensuring they meet the new PQC standards by 2023. This involves phasing out outdated encryption methods, introducing quantum-resistant algorithms, and coordinating efforts with the National Institute of Standards and Technology (NIST) and other agencies. Key Actions in the Migration Plan: Cryptography Inventory and Risk Assessment: Inventory and assess all existing cryptographic systems to identify vulnerabilities and risks. PQC Coordination: DoW CIO will coordinate the migration, with designated personnel overseeing the process across all components. Approval Processes: All PQC-related technologies must be approved by the DoW CIO PQC Directorate before testing, evaluation, or deployment. Phased Implementation: Outdated cryptographic solutions (e.g., QKD, symmetric key protocols) will be replaced with NIST-approved PQC algorithms by December 31, 2030. The migration plan emphasizes interoperability, security, and global coordination to ensure that new PQC systems remain effective and secure. The department is focused on protecting military systems, classified communications, and critical infrastructure from evolving cyber threats. By 2030, the DoW aims to fully implement NIST-approved PQC algorithms and eliminate obsolete encryption methods, securing its systems for the future. (AI was used in part to facilitate this article.) TagscryptographyDoWMigration to Post Quantum Cryptographyquantum computersQuantum Information Science (QIS)War Department Previous articleIvory Coast Pushes for U.S. Spy Planes to Tackle Al Qaeda-Linked Jihadists in SahelNext articleDefense Contract Management Agency Showcases New Strategic Plan Matt Seldon Matt Seldon, BSc., is an Editorial Associate with HSToday. He has over 20 years of experience in writing, social media, and analytics. Matt has a degree in Computer Studies from the University of South Wales in the UK. His diverse work experience includes positions at the Department for Work and Pensions and various responsibilities for a wide variety of companies in the private sector. He has been writing and editing various blogs and online content for promotional and educational purposes in his job roles since first entering the workplace. Matt has run various social media campaigns over his career on platforms including Google, Microsoft, Facebook and LinkedIn on topics surrounding promotion and education. His educational campaigns have been on topics including charity volunteering in the public sector and personal finance goals.

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