uutils / uutils/coreutils

cksum: binary with aws-lc is 2.4 MB smaller than vendored openssl & md5 and sha1 are faster

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U - cksum
Dominant language
Rust
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Description

I tested similar hack with https://github.com/uutils/coreutils/pull/14559 on Linux. Then I got

cksum with aws-lc (no jitter): 4.6 MB
cksum with static openssl: 7.0 MB
cksum with system openssl: 2.3 MB

Also linkage against system openssl is still possible even if aws-lc feature is set via OPENSSL_NO_VENDOR=1.

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First steps

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  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 related approach in uutils/coreutils#14559 and the cksum build configuration. Reproduce the aws-lc, vendored OpenSSL, and system OpenSSL size measurements, including OPENSSL_NO_VENDOR=1. Done means documenting or implementing the linkage and dependency choice while preserving cksum behavior and checking the reported binary-size and MD5/SHA1 performance differences.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
build-system, cli, performance
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
52/100

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