RustCrypto / RustCrypto/block-ciphers

sm4: add hardware accelerated backend for ARM targets

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help wanted performance
Dominant language
Rust
Stars
784
Forks
157
Avg merge
15h 24m
Merged PRs (30d)
9

Description

See vsm4* intrinsics gated on neon and sm4 target features.

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 locating the SM4 implementation and the vsm4* intrinsics, then read how the neon and sm4 target features are currently gated. Check the existing backend and feature-specific tests or build checks before making changes. Done means ARM targets with both required features use the accelerated backend while other targets retain the existing implementation.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cryptography, performance
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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