RustCrypto / RustCrypto/AEADs

eax: allow variable length nonces

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#239 4 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Rust
Stars
961
Forks
200
Avg merge
1h 30m
Merged PRs (30d)
6

Description

Similar to #62, except with EAX. I would like to be able to interoperate with an existing protocol that uses 32-bit nonces. Presumably this could be implemented similarly to #126, but I'm not familiar enough with the codebase to do it easily.

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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 reading the EAX implementation and compare the approaches discussed in issues #62 and #126. Confirm how 32-bit nonces should interoperate with the existing protocol, then add coverage demonstrating variable-length nonce support and run the relevant EAX tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cryptography
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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