RNG health test:

The random number generator implementation performs the following self-tests to obtain assurance that the Deterministic Random Bit Generator (DRBG) continues to operate as designed and implemented (as per section 11.3, [SP80090A]).

• Known-answer test on the DRBG mechanism
• Known-answer test on the instantiate function
• Known-answer test on the generate function
• Known-answer test of the reseed function
• Test of the uninstantiate function