AaronFiore/electrum
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Deterministic NodeID:

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- use_recoverable_channel is a user setting, available
   only in standard wallets with a 'segwit' seed_type
 - if enabled, 'lightning_xprv' is derived from seed
 - otherwise, wallets use the existing 'lightning_privkey2'

Recoverable channels:
 - channel recovery data is added funding tx using an OP_RETURN
 - recovery data = 4 magic bytes + node id[0:16]
 - recovery data is chacha20 encrypted using funding_address as nonce.
   (this will allow to fund multiple channels in the same tx)

GUI:
  - whether channels are recoverable is shown in wallet info dialog.
  - if the wallet can have recoverable channels but has an old node_id,
    users are told to close their channels and restore from seed
    to have that feature.
This commit is contained in:
ThomasV
2021-03-09 09:55:55 +01:00
parent e3025b3d7b
commit 64a931f21e
23 changed files with 395 additions and 76 deletions
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14
electrum/gui/messages.py Normal file
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# note: qt and kivy use different i18n methods
MSG_RECOVERABLE_CHANNELS = """
Add extra data to your channel funding transactions, so that a static backup can be
recovered from your seed.
Note that static backups only allow you to request a force-close with the remote node.
This assumes that the remote node is still online, did not lose its data, and accepts
to force close the channel.
If this is enabled, other nodes cannot open a channel to you. Channel recovery data
is encrypted, so that only your wallet can decrypt it. However, blockchain analysis
will be able to tell that the transaction was probably created by Electrum.
"""