NIST CAVP test vectors — Public Domain (U.S. Government works)
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The NIST Cryptographic Algorithm Validation Program (CAVP) test vectors
distributed in the kat/ and tests/cavp/ directories are works of the
United States Government, prepared by officers and employees of the
National Institute of Standards and Technology (NIST) as part of their
official duties. Pursuant to 17 U.S.C. § 105, these works are NOT subject
to copyright in the United States.

Source: https://csrc.nist.gov/projects/cryptographic-algorithm-validation-program

You may copy, modify, publish, use, compile, sell, or distribute these
test vectors, in source code form or as a compiled binary, for any
purpose, commercial or non-commercial, and by any means.

NIST disclaims any warranty regarding these vectors. See:
https://www.nist.gov/disclaimer
