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feat(core): introduce PATTERN_BIP86 to keychain

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This commit is contained in:
Pavol Rusnak 2021-08-11 13:07:43 +01:00 committed by Andrew Kozlik
parent ae41f7dec8
commit 6406f0640d
1 changed files with 9 additions and 0 deletions
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9
core/src/apps/bitcoin/keychain.py
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@ -46,6 +46,8 @@ PATTERN_BIP48_SEGWIT = "m/48'/coin_type'/account'/2'/change/address_index"
PATTERN_BIP49 = "m/49'/coin_type'/account'/change/address_index"
# BIP-84 for segwit: https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki
PATTERN_BIP84 = "m/84'/coin_type'/account'/change/address_index"
# BIP-86 for taproot: https://github.com/bitcoin/bips/blob/master/bip-0086.mediawiki
PATTERN_BIP86 = "m/86'/coin_type'/account'/change/address_index"
# compatibility patterns, will be removed in the future
PATTERN_GREENADDRESS_A = "m/[1,4]/address_index"
@ -129,6 +131,9 @@ def validate_path_against_script_type(
patterns.append(PATTERN_GREENADDRESS_A)
patterns.append(PATTERN_GREENADDRESS_B)
elif coin.taproot and script_type == InputScriptType.SPENDTAPROOT:
patterns.append(PATTERN_BIP86)
return any(
PathSchema.parse(pattern, coin.slip44).match(address_n) for pattern in patterns
)
@ -179,6 +184,10 @@ def get_schemas_for_coin(coin: coininfo.CoinInfo) -> Iterable[PathSchema]:
)
)
# taproot patterns
if coin.taproot:
patterns.append(PATTERN_BIP86)
schemas = [PathSchema.parse(pattern, coin.slip44) for pattern in patterns]
# Some wallets such as Electron-Cash (BCH) store coins on Bitcoin paths.