openmls / openmls/openmls

Validation of `Signer`'s `SignatureScheme` in `MlsGroup` APIs

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Dominant language
Rust
Stars
1k
Forks
180
Avg merge
3d 20h
Merged PRs (30d)
18

Description

Currently, the signature scheme of the provided Signer is not validated by MlsGroup::update_group_context_extensions() and other APIs on MlsGroup that create commits.

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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 with MlsGroup::update_group_context_extensions() and inspect the other MlsGroup APIs that create commits. Trace how the provided Signer is used and determine where its SignatureScheme should be checked; done means mismatched schemes are rejected consistently by all relevant commit-creating APIs.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
security
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
52/100

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