The National Institute of Standards and Technology (NIST) is updating cryptographic standards, SP 800-56A and SP 800-56C, to protect digital systems from future quantum computer threats. The review process began in December 2024, and the public is invited to submit feedback until September 15, 2025. A key decision in the proposal is that popular key exchange methods like X25519 will not be approved as primary options yet, instead being treated as secondary choices during the transition to new quantum-resistant technologies.
These updates aim to refine the rules for managing encryption keys and ensure systems remain secure as technology evolves. While one related standard, SP 800-56B, remains unchanged, the revisions to 56A and 56C will guide how organizations upgrade their security practices. Once finalized, these standards will help protect sensitive data against the increased computing power expected from future quantum systems.
Source: https://www.nist.gov/news-events/news/2025/07/nist-proposes-update-sp-800-56a-and-revise-sp-800-56c
Keywords: post-quantum cryptography, NIST SP 800-56, key exchange mechanisms
