I have written my own random number generator as a C library and I tested it on NIST Statistical Test Suite.
Now I would like to get a certification to have a formal proof that my C library generates random numbers randomly enough according SP800-22.
On a NIST web pages I'm not able to find some list of independent laboratory that could take my library, test it, and provide me certification.
Where can I find a list of companies/independent laboratories that can certify my RNG library according NIST SP800-22?