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Recommendation for Random Bit Generator Constructions: NIST Publishes SP 800-90C
NIST has released SP 800-90C, the final document in the SP 800-90 series, which supports the generation of high-quality random bits for cryptographic and non-cryptographic use.
NIST has released Special Publication (SP) 800-90C, Recommendation for Random Bit Generator (RBG) Constructions. It is the final document in the SP 800-90 series, which supports the generation of high-quality random bits for cryptographic and non-cryptographic use.
SP 800-90C specifies constructions for implementing random bit generators (RBGs) that include deterministic random bit generator (DRBG) mechanisms as specified in SP 800-90A and use entropy sources as specified in SP 800-90B.
SP 800-90C includes constructions for four classes of RBGs:
- An RBG1 construction provides random bits from a device that is initialized from an external RBG.
- An RBG2 construction includes an entropy source that is available on demand.
- An RBG3 construction includes an entropy source that is continuously accessed to provide output with full entropy.
- An RBGC construction allows the use of a chain of RBGs that consists of only RBGC constructions on the same computing platform.