In light of recent reports, NIST is reopening the public comment period for Special Publication 800-90A and draft Special Publications 800-90B and 800-90C NIST is interested in public review and comment to ensure that the recommendations are accurate and provide the strongest cryptographic recommendations possible. 

• NIST SP 800-90A, Recommendation for Random Number Generation Using Deterministic Random Bit Generators
• Draft NIST SP 800-90B, Recommendation for the Entropy Sources Used for Random Bit Generation
• Draft NIST SP 800-90C, Recommendation for Random Bit Generator (RBG) Constructions

 
The public comments period closed on November 6, 2013. Comments should be sent to RBG_Comments@nist.gov. 
 
In addition, NIST has released a supplemental ITL Security Bulletin titled "NIST Opens Draft Special Publication 800-90A, Recommendation for Random Number Generation Using Deterministic Random Bit Generators, For Review and Comment (Supplemental ITL Bulletin for September 2013)" to support the draft revision effort.