Add new builtin hashing function `ripemd_160` - Githubissues

IntersectMBO / plutus

The Plutus language implementation and tools

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Add new builtin hashing function `ripemd_160` #6252

Open paluh opened 5 days ago

paluh commented 5 days ago

I'm reopening this as a separate PR because of the permissions issue (I'm not able to push to the branch under IntersectMBO/plutus anymore.

Pre-submit checklist:

Branch
- [x] Tests are provided (if possible)
- [x] Commit sequence broadly makes sense
- [x] Key commits have useful messages
- [ ] Changelog fragments have been written (if appropriate)
- [ ] Relevant tickets are mentioned in commit messages
- [ ] Formatting, PNG optimization, etc. are updated
PR
- [ ] (For external contributions) Corresponding issue exists and is linked in the description
- [ ] Targeting master unless this is a cherry-pick backport
- [ ] Self-reviewed the diff
- [ ] Useful pull request description
- [x] Reviewer requested

paluh commented 5 days ago

This is preliminary work which exposes RIPEMD-160 hashing primitive as a new bulitin.

I closely followed changes which were made during introduction of keccak_256 and blake2b_224 functions.
The hashing function is included in the latest version of cardano-crypto-class so I bumped the version.
This draft contains an artificial costing model for the new builtin - I copied keccak_256 related values to be able to test the function.