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NIST Requests Public Comments on Several Existing Cryptography Standards and Special Publications
May 10, 2021

NIST is in the process of a periodic review and maintenance of its cryptography standards and NIST Special Publications. A description of the review process is available at the Crypto Publication Review Project page

Currently, we are reviewing the following publications: 

  • Federal Information Processing Standard (FIPS) 197, Advanced Encryption Standard (AES), 2001
  • NIST Special Publication (SP) 800-38A, Recommendation for Block Cipher Modes of Operation: Methods and Techniques, 2001 
  • NIST SP 800-38A Addendum, Recommendation for Block Cipher Modes of Operation: Three Variants of Ciphertext Stealing for CBC Mode, 2010 
  • NIST SP 800-15, Minimum Interoperability Specification for PKI Components (MISPC), Version 1, 1998 
  • NIST SP 800-25, Federal Agency Use of Public Key Technology for Digital Signatures and Authentication, 2000 
  • NIST SP 800-32, Introduction to Public Key Technology and the Federal PKI Infrastructure, 2001  

We request that public comments on these publications be submitted by June 11, 2021. Comments may address security, implementation, clarity, and/or risk issues as well as relevance to current applications.

Send comments to with the publication number in the Subject, e.g., “Comments on FIPS 197”, and “Comments on SP 800-38A.” 

Visit our site to view these publications and learn more about our process.

Created May 10, 2021