RustCrypto / RustCrypto/hashes

groestl: add AVX512/GFNI backend

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#718 2 comments 0 reactions 0 assignees View on GitHub

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performance
Dominant language
Rust
Stars
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Forks
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Avg merge
12h 31m
Merged PRs (30d)
2

Description

Last year, I wrote an AVX512/GFNI implementation of the "short" core for Groestl. (Ignore the "long" core code in g512.rs, it doesn't work correctly last I checked). Now that these intrinsics are stabilized, I would love to get this up to the standards of the project and contribute it as an optimized backend.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the linked groestl-gfni implementation, especially g512.rs and its short core, then compare it with the RustCrypto hashes project's existing Groestl backend conventions. Done means the corrected short-core AVX512/GFNI backend meets the project's standards and is validated against the repository's Groestl checks.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cryptography
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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