[electrum] Implement SLIP-0039 wallet recovery.
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Authored by PiRK on Thu, Jan 23, 12:41.

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Fabien

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rABCfb94895b4483: [electrum] Implement SLIP-0039 wallet recovery.

Summary

This implements recovery of a wallet from a Shamir's secret-sharing scheme.

Current limitations:

we can only recover a wallet from an existing set of mnemonic shares, we don't generate new ones
the mnemonic shares are not saved to storage (wallet file), so users can't see their "seed" via the "Wallet > Show" seed menu (the action is disabled in the GUI)
we don't autodetect the seed type, the user needs to click the option button and select "slip39" explicitely

This is a backport of electrum#6917 and electrum#9059

Depends on D17576

Test Plan

python test_runner.py

Import a wallet from a SLIP39 share, test that it works (receive a send a transaction), close it and reopen it and test again (make sure the wallet file has all the info needed to open the wallet). Test the derivation path scanner.

Diff Detail

Repository

rABC Bitcoin ABC

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Event Timeline

PiRK created this revision.Thu, Jan 23, 12:41

Herald added a reviewer: Restricted Project. · View Herald TranscriptThu, Jan 23, 12:41

teamcity edited the summary of this revision. (Show Details)Thu, Jan 23, 12:41

Harbormaster completed remote builds in B32185: Diff 52341.Thu, Jan 23, 12:43

comment fixups

PiRK published this revision for review.Thu, Jan 23, 12:58

PiRK added inline comments.

electrum/electrumabc/base_wizard.py
568 ↗	(On Diff #52342)	we don't need to detect the seed_type automatically. That was legacy code left over from Electrum, that have a complete zoo of seed_type for their standard "electrum" type (p2sh_segwit, native_segwit...)