NIST Proposes to Revise SP 800-22 Revision 1a


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NIST Cybersecurity and Privacy Program

Announcement of Proposal to Revise Special Publications 800-22 Revision 1a

In August 2021, NIST's Cryptographic Publication Review Board initiated a review process for NIST Special Publication (SP) 800-22 Rev. 1aA Statistical Test Suite for Random and Pseudorandom Number Generators for Cryptographic Applications.

In response to the public comments receivedNIST proposes to revise SP 800-22 Rev. 1a to:

  1. address technical suggestions (e.g., new research results, considerations for two-level testing, supporting shorter sequences, independence of the tests)​,
  2. clarify the use of the statistical randomness tests,
  3. improve the software tool,
  4. resolve inconsistencies with the SP 800-22 and SP 800-90 series, and
  5. improve the editorial quality of the standard.

Public comments on this proposal may be submitted to by February 14, 2022. Please use “Comments on SP 800-22 Rev 1a Decision Proposal” in the Subject.

More information about the review process is available at NIST's Crypto Publication Review Project.

NIST Cybersecurity and Privacy Program
NIST Computer Security Division (CSD)
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