Issue Details

Number

24003

Title

Derive individual index descriptor

Description

Given a `Descriptor` of the form `tr(xpub/0/*)#checksumA`, derive `tr(xpub/0/i)#checksumB`. Currently this requires either string manipulation or inferring a fresh descriptor from a wallet script. The latter is not a 1-to-1 mapping, so e.g. a `sorted_multi` descriptor can't be inferred this way. This can create a problem when trying to display an address on an external signer device: https://github.com/bitcoin/bitcoin/blob/a0988140b71485ad12c3c3a4a9573f7c21b1eff8/src/wallet/external_signer_scriptpubkeyman.cpp#L51-L57 Some devices, e.g. the Blockstream Jade https://github.com/bitcoin-core/HWI/pull/559#issuecomment-1007399463, can't display an address based on just the derivation info and a public key, they need the `xpub` too.

URL

https://github.com/bitcoin/bitcoin/issue/24003

Closed by

Notes

Attention of

Kill Factor (1-10)

Save

Back to List