Support PuTTY 0.75+'s PPK3 private key file format, which uses Argon2
Open
Nobody has claimed this yet.
enhancement
new format
- Dominant language
- C
- Stars
- 13.6k
- Forks
- 2.6k
- PR merge metrics
- No merged PRs in 30d
Description
PuTTY 0.75 release announcement says:
- PuTTY's format for private key files has been updated. The new
format, PPK3, does not depend on SHA-1, and also, it uses the
Argon2 password hash function to make it more difficult for an
encrypted key file stolen by an attacker to be brute-forced.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no files, tests, or entry points. Start by reading the linked PuTTY 0.75 release announcement to understand the PPK3 and Argon2 requirements, then locate the repository's existing PuTTY private-key support. Done means encrypted PPK3 private key files can be recognized and processed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- cryptography
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100