Policy

The Pentagon Sets 2030 and 2031 Deadlines for Post-Quantum Cryptography

The Department of War's June 2026 strategy says systems must support post-quantum cryptography or be phased out by end-2030, so contractors should plan now.

ArcQubit Team··2 min read·Updated September 29, 2026
  • defense industrial base
  • post-quantum cryptography
  • 2030 deadline
  • PQC migration
  • for government

Pentagon sets 2030 and 2031 deadlines for post-quantum cryptography

23 JUNE 2026, ARLINGTON

The Department of War, formerly the Department of Defense, released its post-quantum cryptography strategy. Defense One reports the release as Tuesday, 23 June, and its story ran on 24 June.

Defense One reports that all Pentagon systems must support post-quantum cryptography by the end of 2030 or face phase-out, and that all systems must use the new standards by the end of 2031. Skadden's alert gives the same two gates and quotes the strategy as saying the shift touches nearly every deployed military asset in some way.

The strategy reaches all department IT systems and, according to Defense One, the defense industrial base and supply chains, since it stresses integrating secure commercial products and developing post-quantum algorithms and protocols. Skadden and OpenSSL Corporation say the requirements flow to contractors and the defense industrial base.

Defense One quotes DoD Chief Information Officer Kirsten Davies describing the strategy as only a first step in readying the military and as concerning the integrity of systems for decades to come. She placed it within broader modernization priorities, including artificial intelligence and workforce development, and said network modernization alone is insufficient.

Why it matters. Defense contractors and suppliers should expect post-quantum requirements to reach them through contracts, with end-2030 and end-2031 as the reference dates. The Pentagon can phase out products that do not support the new standards, which suggests vendors need product roadmaps now. The CIO's own description of the strategy as a first step indicates more detailed requirements may follow.

Frequently asked questions

Skadden and OpenSSL Corporation say the requirements flow to contractors and the defense industrial base. Products that cannot support the new standards risk being phased out of Pentagon use, so vendors need roadmaps.

Probably not. DoD CIO Kirsten Davies described the strategy as only a first step in readying the military, which suggests more detailed requirements may follow.

Sources

  1. Defense One, "Pentagon post-quantum cryptography strategy (DoD CIO)," Jun. 24, 2026.
  2. Skadden, "New Executive Orders and Government Strategy Advance US Quantum Innovation and Mandate Post-Quantum Cryptography Transition," Jun. 2026.
  3. OpenSSL Corporation, "Post-Quantum Cryptography Now Has Deadlines," 2026.

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