libfips203-dev 0.2.1-3 (s390x binary) in ubuntu oracular

 This package enables a C programmer to use a dynamic library (shared
 object) implementing the Module-Lattice-Based Key-Encapsulation
 Mechanism, also known as ML-KEM or FIPS 203.
 .
 The library is written in pure Rust with minimal and mainstream
 dependencies, and without any unsafe code. All three security
 parameter sets are fully supported and tested. The implementation
 operates in constant-time (outside of rho, which is part of the
 encapsulation key sent across the trust boundary in the clear), and
 focuses on correctness, simplicity, security, and a stable API.
 .
 See <https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.203.ipd.pdf>
 for a full description of the target functionality.