ML-DSA-44 signature rejected everytime in personal project

[kuolemaaa]

Hi. I am using the source code in src/sig/ml_dsa/pqcrystals-dilithium-standard_ml-dsa-44_ref/, with some small modification (mostly on the hash things), for a project of mine, basically getting random bytes from /dev/urandom and using the fips202 implementation from mupq that seems the most "compatible" (in the sense of function and type naming) with the source in this library.

Unfortunately, in trying to generate a signature of message, they got rejected in the first check every single time.

Instead, this not happens using the dilithium2 source code of this library that seems compliant with the expectation of only some rejections (single digit, usually) before a valid one.

Any help?

[SWilson4]

Hi @kuolemaaa, we don't actually maintain the source code for Dilithium and ML-DSA. I suggest you ask our upstream source for those algorithms.