Details regarding the bcpqc-fips artifact and BouncyCastlePQCProvider

[rymarm]

Hi! I found a Bouncy Castle artifact, bcpqc-fips, in the Maven repository with the following description:

The Bouncy Castle Non-Certified PQC APIs contains non-certified implementations of ML-KEM, ML-DSA, and SLH-DSA sutiable for use with the BCFIPS provider.

However, this is almost the only place the artifact is mentioned - it isn't listed in either the documentation or the release notes. I'm curious: how is it intended to be used? Also, is there a plan to maintain this artifact until BC-FIPS 2.2.0 is released, or even after that?

Are there code samples available for this? I assumed we need to register BouncyCastlePQCProvider alongside BouncyCastleFipsProvider in the Security context to bring in PQC support. Is that correct?

I've managed to run a few code samples, but I'd appreciate any insights or details you could share regarding the bcpqc-fips module!