pyca / pyca/pynacl

crypto_pwhash_scryptsalsa208sha256 is missing

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Dominant language
C
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Description

There is no binding for the key derivation function crypto_pwhash_scryptsalsa208sha256.

crypto_pwhash_scryptsalsa208sha256_ll is available but it is not compatible because the cost parameter need to be calculated differently, and the libsodium function pickparams which does just that does not appear to be exposed.

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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 existing binding for crypto_pwhash_scryptsalsa208sha256_ll and comparing it with the libsodium crypto_pwhash_scryptsalsa208sha256 API and pickparams behavior. Done means the missing function is exposed through PyNaCl with the required cost-parameter handling; the issue names no file or test entry point.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, python
Domain
cryptography
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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