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core/bitcoin: drop unused validate_path_for_bitcoin_public_key
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@ -4,7 +4,7 @@ from trezor.crypto.hashlib import sha256
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from trezor.messages import InputScriptType
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from trezor.messages.MultisigRedeemScriptType import MultisigRedeemScriptType
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from apps.common import HARDENED, address_type, paths
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from apps.common import HARDENED, address_type
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from apps.common.coininfo import CoinInfo
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from .common import ecdsa_hash_pubkey, encode_bech32_address
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@ -232,25 +232,3 @@ def validate_purpose_against_script_type(
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if purpose == 84 | HARDENED and script_type != InputScriptType.SPENDWITNESS:
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return False
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return True
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def validate_path_for_bitcoin_public_key(path: list, coin: CoinInfo) -> bool:
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"""
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Validates derivation path to fit Bitcoin-like coins for GetPublicKey.
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"""
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length = len(path)
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if length < 3 or length > 5:
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return False
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if not validate_purpose(path[0], coin):
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return False
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if path[1] != coin.slip44 | HARDENED:
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return False
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if path[2] < HARDENED or path[2] > 20 | HARDENED:
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return False
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if length > 3 and paths.is_hardened(path[3]):
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return False
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if length > 4 and paths.is_hardened(path[4]):
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return False
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return True
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@ -2,7 +2,7 @@ from common import *
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from trezor.crypto import bip32, bip39
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from trezor.utils import HashWriter
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from apps.bitcoin.addresses import validate_full_path, validate_path_for_bitcoin_public_key
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from apps.bitcoin.addresses import validate_full_path
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from apps.common.paths import HARDENED
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from apps.common import coins
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from apps.bitcoin import scripts
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@ -220,50 +220,6 @@ class TestAddress(unittest.TestCase):
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for path, input_type in incorrect_derivation_paths:
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self.assertFalse(validate_full_path(path, coin, input_type))
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def test_paths_public_key(self):
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incorrect_derivation_paths = [
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[49 | HARDENED], # invalid length
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[49 | HARDENED, 0 | HARDENED, 0 | HARDENED, 0 | HARDENED, 0 | HARDENED], # too many HARDENED
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[49 | HARDENED, 0 | HARDENED], # invalid length
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[49 | HARDENED, 0 | HARDENED, 0 | HARDENED, 0, 0, 0], # invalid length
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[49 | HARDENED, 123 | HARDENED, 0 | HARDENED, 0, 0, 0], # invalid slip44
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[49 | HARDENED, 0 | HARDENED, 1000 | HARDENED, 0, 0], # account too high
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]
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correct_derivation_paths = [
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[44 | HARDENED, 0 | HARDENED, 0 | HARDENED], # btc is segwit coin, but non-segwit paths are allowed as well
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[44 | HARDENED, 0 | HARDENED, 0 | HARDENED, 1, 0],
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[49 | HARDENED, 0 | HARDENED, 0 | HARDENED, 0, 0],
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[49 | HARDENED, 0 | HARDENED, 0 | HARDENED, 1, 0],
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[49 | HARDENED, 0 | HARDENED, 5 | HARDENED],
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[84 | HARDENED, 0 | HARDENED, 0 | HARDENED, 0, 0],
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[84 | HARDENED, 0 | HARDENED, 5 | HARDENED, 0, 0],
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[84 | HARDENED, 0 | HARDENED, 5 | HARDENED, 0, 10],
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]
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coin = coins.by_name('Bitcoin')
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for path in correct_derivation_paths:
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self.assertTrue(validate_path_for_bitcoin_public_key(path, coin))
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for path in incorrect_derivation_paths:
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self.assertFalse(validate_path_for_bitcoin_public_key(path, coin))
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@unittest.skipUnless(not utils.BITCOIN_ONLY, "altcoin")
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def test_paths_public_key_nosegwit(self):
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incorrect_derivation_paths = [
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[49 | HARDENED, 3 | HARDENED, 0 | HARDENED, 0, 0], # no segwit
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]
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correct_derivation_paths = [
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[44 | HARDENED, 3 | HARDENED, 0 | HARDENED],
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[44 | HARDENED, 3 | HARDENED, 1 | HARDENED],
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[44 | HARDENED, 3 | HARDENED, 0 | HARDENED, 0],
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[44 | HARDENED, 3 | HARDENED, 0 | HARDENED, 0, 0],
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]
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coin = coins.by_name('Dogecoin') # segwit is disabled
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for path in correct_derivation_paths:
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self.assertTrue(validate_path_for_bitcoin_public_key(path, coin))
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for path in incorrect_derivation_paths:
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self.assertFalse(validate_path_for_bitcoin_public_key(path, coin))
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if __name__ == '__main__':
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unittest.main()
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