Random Number Generation Using DRBGs | Pre-Draft Call for Comments on SP 800-90A

National Institute of Standards and Technology (NIST) sent this bulletin at 09/04/2025 03:21 PM EDT
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NIST Cybersecurity and Privacy Program

Random Number Generation Using Deterministic Random Bit Generators (DRBGs) | Pre-Draft Call for Comments on SP 800-90A

NIST Special Publication (SP) 800-90Ar1 (Revision 1), Recommendation for Random Number Generation Using Deterministic Random Bit Generators (DRBGs), provides guidelines for generating cryptographically secure random numbers using deterministic methods. This recommendation specifies approved DRBG mechanisms based on hash functions and block ciphers.

NIST is planning a second revision of SP 800-90A to reflect advancements in cryptographic research and maintain consistency across related standards. A public comment period on all aspects of the current SP 800-90A will be open until November 4, 2025. See the full announcement for more details.

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