async def ms_wallet_electrum_export(menu, label, item):
# create a JSON file that Electrum can use. Challenges:
# - file contains a derivation path that we don't really know.
# - electrum is using BIP43 with purpose=48 (purpose48_derivation) to make paths like:
# m/48'/1'/0'/2'
# - other signers might not be coldcards (we don't know)
# solution:
# - (much earlier) when exporting, include all the paths needed.
# - when building air-gap, pick address type at that point, and matching path to suit
# - require a common prefix path here
# - could check path prefix and addr_fmt make sense together, but meh.
ms = item.arg
from actions import electrum_export_story
prefix = ms.common_prefix
if not prefix:
return await ux_show_story(
"We don't know the common derivation path for "
"these keys, so cannot create Electrum wallet.")
msg = 'The new wallet will have derivation path:\n %s\n and use %s addresses.\n' % (
prefix, MultisigWallet.render_addr_fmt(ms.addr_fmt))
if await ux_show_story(electrum_export_story(msg)) != 'y':
return
await ms.export_electrum()
async def ms_wallet_electrum_export(menu, label, item):
# create a JSON file that Electrum can use. Challenges:
# - file contains derivation paths for each co-signer to use
# - electrum is using BIP43 with purpose=48 (purpose48_derivation) to make paths like:
# m/48'/1'/0'/2'
# - other signers might not be coldcards (we don't know)
# solution:
# - when building air-gap, pick address type at that point, and matching path to suit
# - could check path prefix and addr_fmt make sense together, but meh.
ms = item.arg
from actions import electrum_export_story
derivs, dsum = ms.get_deriv_paths()
msg = 'The new wallet will have derivation path:\n %s\n and use %s addresses.\n' % (
dsum, MultisigWallet.render_addr_fmt(ms.addr_fmt) )
if await ux_show_story(electrum_export_story(msg)) != 'y':
return
await ms.export_electrum()