### Description KATs for FIPS CMVP compliance require ECDSA implementations to receive non-random selected ephemeral k as input (see p.82 bottom in [Implementation Guidance for FIPS 140-3 and the Cryptographic Module Validation Program](https://csrc.nist.gov/csrc/media/Projects/cryptographic-module-validation-program/documents/fips%20140-3/FIPS%20140-3%20IG.pdf))