rust-bitcoin / rust-bitcoin/rust-miniscript
Failure to parse `pk(xprv.../*)` descriptor
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- Dominant language
- Rust
- Stars
- 426
- Forks
- 200
- Avg merge
- 7d 17h
- Merged PRs (30d)
- 8
Description
See https://github.com/brunoerg/bitcoinfuzz/issues/70.
The following descriptor pk(xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/*) fails to be parsed due to "Public keys must be 64/66/130 characters in size"/"pubkey string should be 66 or 130 digits long, got: 113".
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
Start by reproducing the exact pk(xprv.../*) descriptor from the issue and compare the parser behavior with the linked bitcoinfuzz report. Trace the descriptor parsing entry point to identify why the extended key is treated as a raw public key. Done means this descriptor parses successfully without either cited length error, with coverage for the regression.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- cryptography
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100