Extend ML-DSA API for External Mu

To aid with the development of new standards, new functions were exposed for ML-DSA

• key_derive(seed) -> (pk, sk) is a method which creates a key pair given a seed, which is used in cases where a seed rather than expanded key is stored for the private key. Contributed by @ounsworth in #10
• prehash_external_mu(self, pk_bytes, m, ctx=b"") -> mu which given a public key and message, creates a 64 byte value by hashing H(H(pk) | M') which is used internally in signing. This allows for an alternative way to rehash a message for ML-DSA without needing a specialised verification function #9. Contributed by @GiacomoPope
• sign_external_mu(self, sk_bytes, external_mu, deterministic=False) performs signing as in regular ML-DSA but instead of expecting a message and optional context, instead expects the prehashed value mu #9. Contributed by @GiacomoPope

Additionally, the CI has been changed so that all linting and checks are performed by ruff instead of black #11. Contributed by @GiacomoPope

New Contributors

• @ounsworth made their first contribution in #10

Full Changelog: 1.0.2...1.1.0

Update missing dependency in setup

Full Changelog: 1.0.1...1.0.2

Support Yocto install

This update includes a setup.py to allow the pip package to be installed for Yocto

ML-DSA (FIPS 204)

Implementation of ML-DSA following the NIST specification FIPS 204. The project is now available on PyPI: https://pypi.org/project/dilithium-py/