Neptune uses an outdated reference script

[themighty1]

Hi, fn generate_constants() https://github.com/filecoin-project/neptune/blob/2b11f0ce69f52aa9594f250baa658bfe2d349ac3/src/round_constants.rs#L26
references https://extgit.iaik.tugraz.at/krypto/hadeshash/blob/master/code/scripts/create_rcs_grain.sage
That file does not exist. An updated script exists in that repo with a notice of some fixed bugs.

Are there no security implications in not following the updated reference impl?

I was trying to reproduce the Poseidon constants which circomlib uses (they use the more recent script generate_parameters_grain.sage) and was unable to.

[themighty1]

I was able to confirm that the old script generates the same parameters as the new one. Created a PR #163