wallet: add codex32 argument to addhdkey #32652

pull roconnor-blockstream wants to merge 10 commits into bitcoin:master from roconnor-blockstream:codex32 changing 16 files +1327 −46
  1. roconnor-blockstream commented at 10:05 pm on May 30, 2025: contributor

    Rebase of #27351 onto #29136.

    WIP

    This PR introduces the ability to import BIP 93/codex32 master seeds with the addhdkey command. It currently expects seeds to be provided in either as a single seed or as a list of shares which can be assembled via Shamir Secret Sharing.

  2. descriptor: Add unused(KEY) descriptor
    unused() descriptors do not have scriptPubKeys. Instead, the wallet uses
    them to store keys without having any scripts to watch for.
    10b677530e
  3. test: Simple test for importing unused(KEY) 92849bdd9b
  4. DrahtBot commented at 10:06 pm on May 30, 2025: contributor

    The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

    Code Coverage & Benchmarks

    For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/32652.

    Reviews

    See the guideline for information on the review process.

    Type Reviewers
    Concept ACK achow101

    If your review is incorrectly listed, please react with 👎 to this comment and the bot will ignore it on the next update.

    Conflicts

    Reviewers, this pull request conflicts with the following ones:

    • #33008 (wallet: support bip388 policy with external signer by Sjors)
    • #32966 (Silent Payments: Receiving by Eunovo)
    • #32489 (wallet: Add exportwatchonlywallet RPC to export a watchonly version of a wallet by achow101)
    • #30243 (descriptors: taproot partial descriptors by Eunovo)
    • #28333 (wallet: Construct ScriptPubKeyMans with all data rather than loaded progressively by achow101)

    If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

    LLM Linter (✨ experimental)

    Possible typos and grammar issues:

    • In codex32.cpp comment: residue (“secretshare32” or “secretshare32ex”. → residue (“secretshare32” or “secretshare32ex”) [missing closing parenthesis]

    drahtbot_id_4_m

  5. DrahtBot added the label Wallet on May 30, 2025
  6. DrahtBot added the label CI failed on May 30, 2025
  7. DrahtBot commented at 10:38 pm on May 30, 2025: contributor

    🚧 At least one of the CI tasks failed. Task previous releases, depends DEBUG: https://github.com/bitcoin/bitcoin/runs/43216931922 LLM reason (✨ experimental): The CI failure is due to a compilation error caused by an invalid use of dynamic_cast on a non-pointer type.

    Try to run the tests locally, according to the documentation. However, a CI failure may still happen due to a number of reasons, for example:

    • Possibly due to a silent merge conflict (the changes in this pull request being incompatible with the current code in the target branch). If so, make sure to rebase on the latest commit of the target branch.

    • A sanitizer issue, which can only be found by compiling with the sanitizer and running the affected test.

    • An intermittent issue.

    Leave a comment here, if you need help tracking down a confusing failure.

  8. wallet: Add addhdkey RPC 0d24f0af7a
  9. wallet, rpc: Disallow import of unused() if key already exists cba3bcb6a7
  10. wallet, rpc: Disallow importing unused() to wallets without privkeys 6100108594
  11. achow101 commented at 8:48 pm on June 2, 2025: member

    Concept ACK-ish

    This is certainly better than the previous approach.

  12. roconnor-blockstream force-pushed on Jun 24, 2025
  13. Hack importdescriptors to look for private keys in the wallet dd83a96906
  14. bech32: expose the character conversion functionality
    In the next commit we will implement a new checksum, codex32, which uses
    the same encoding and HRP rules as bech32 and bech32m, but has a
    substantially different checksum verification procedure. To minimize
    duplicated code, we expose the character conversion in a new
    bech32::internals module.
    1ecd034940
  15. roconnor-blockstream force-pushed on Jul 4, 2025
  16. codex32: implement encoding and decoding 5d504cb11b
  17. codex32: introduce Lagrange interpolation and derived shares 139e8c15c1
  18. codex32: provide user-readable error types 59777ef8dc
  19. roconnor-blockstream force-pushed on Jul 5, 2025

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