Policy

ISO/IEC JTC1 SC27 Maintains a Standing Document on Post-Quantum Cryptography

ISO/IEC JTC1 SC27 maintains a standing document on post-quantum cryptography that serves as a working reference for its members rather than a published standard.

ArcQubit Team··2 min read·Updated August 28, 2026
  • post-quantum cryptography
  • quantum readiness
  • industry analysis
  • crypto-agility
  • for enterprises

ISO/IEC JTC1 SC27 maintains a standing document on post-quantum cryptography

1 JANUARY 2025, GENEVA

ISO/IEC JTC1 SC27, the subcommittee responsible for information security standards, maintains a standing document on post-quantum cryptography. The document serves as a working reference for the subcommittee's members rather than a published international standard. It informs the subcommittee's ongoing work instead of imposing requirements on organizations.

A working reference plays a coordinating role. It captures the subcommittee's current understanding of post-quantum cryptography and keeps its members aligned as formal standards develop. For outside observers, watching the standing document offers early insight into the direction ISO/IEC standards may take before those standards reach final form.

The distinction from a published standard is important. Organizations certify against the published ISO/IEC standards, not against an internal working reference, so the standing document carries no compliance obligation. Its value is as a signal of where international standardization on post-quantum cryptography is heading, which helps organizations anticipate future standards.

Why it matters. The SC27 standing document is a window into how international information-security standards will treat post-quantum cryptography, maintained by the body that writes them. It binds no one, but it signals direction. Organizations that track ISO/IEC standards can watch the standing document to anticipate the post-quantum requirements that future published standards are likely to carry.

Frequently asked questions

ISO/IEC JTC1 SC27, the subcommittee responsible for information security standards, maintains a standing document on post-quantum cryptography. It is a working reference for the subcommittee's members, not a published international standard, so it informs ongoing standards work rather than imposing requirements.

A standing document captures the subcommittee's current understanding and coordinates its members as formal standards develop. Watching it offers insight into the direction ISO/IEC standards on post-quantum cryptography may take before those standards are finalised.

No. It is a working reference internal to the subcommittee, distinct from the published ISO/IEC standards that organizations certify against. Organizations should not treat it as a requirement, but as a signal of where international standardization is heading.

Sources

  1. ISO/IEC JTC1 SC27, "Standing document on post-quantum cryptography," working reference.

Turn the headline into a plan.

Wherever you are on the 2030 to 2035 timeline, QuTrust builds you a migration roadmap.