def _check_duplicate_keys(cls, keys):
"""raise a SpecterError when a xpub in the passed KeyList is listed twice. Should prevent MultisigWallets where
xpubs are used twice.
"""
# normalizing xpubs in order to ignore slip132 differences
xpubs = [Key.parse_xpub(key.original).xpub for key in keys]
for xpub in xpubs:
if xpubs.count(xpub) > 1:
raise SpecterError(_(f"xpub {xpub} seem to be used at least twice!"))
def parse_signers(self, devices, cosigners_types):
keys = []
cosigners = []
unknown_cosigners = []
unknown_cosigners_types = []
if self.multisig_N == None:
self.multisig_N = 1
self.multisig_M = 1
self.origin_fingerprint = [self.origin_fingerprint]
self.origin_path = [self.origin_path]
self.base_key = [self.base_key]
for i in range(self.multisig_N):
cosigner_found = False
for device in devices:
cosigner = devices[device]
if self.origin_fingerprint[i] is None:
self.origin_fingerprint[i] = ""
if self.origin_path[i] is None:
self.origin_path[i] = self.origin_fingerprint[i]
for key in cosigner.keys:
if key.fingerprint + key.derivation.replace(
"m", ""
) == self.origin_fingerprint[i] + self.origin_path[i].replace(
"'", "h"
):
keys.append(key)
cosigners.append(cosigner)
cosigner_found = True
break
if cosigner_found:
break
if not cosigner_found:
desc_key = Key.parse_xpub(
"[{}{}]{}".format(
self.origin_fingerprint[i],
self.origin_path[i],
self.base_key[i],
)
)
if len(cosigners_types) > i:
unknown_cosigners.append((desc_key, cosigners_types[i]["label"]))
else:
unknown_cosigners.append((desc_key, None))
if len(unknown_cosigners) > len(cosigners_types):
unknown_cosigners_types.append("other")
else:
unknown_cosigners_types.append(cosigners_types[i]["type"])
return (keys, cosigners, unknown_cosigners, unknown_cosigners_types)
def parse_signers(self, devices, cosigners_types):
keys = []
cosigners = []
unknown_cosigners = []
unknown_cosigners_types = []
for i, descriptor_key in enumerate(self.descriptor.keys):
# remove derivation from the key for comparison
account_key = DescriptorKey.from_string(str(descriptor_key))
account_key.allowed_derivation = None
# Specter Key class
desc_key = Key.parse_xpub(str(account_key))
cosigner_found = False
for cosigner in devices.values():
for key in cosigner.keys:
# check key matches
if key.to_string(slip132=False) == desc_key.to_string(
slip132=False
):
keys.append(key)
cosigners.append(cosigner)
cosigner_found = True
break
if cosigner_found:
break
if not cosigner_found:
if len(cosigners_types) > i:
unknown_cosigners.append((desc_key, cosigners_types[i]["label"]))
else:
unknown_cosigners.append((desc_key, None))
if len(unknown_cosigners) > len(cosigners_types):
unknown_cosigners_types.append("other")
else:
unknown_cosigners_types.append(cosigners_types[i]["type"])
return (keys, cosigners, unknown_cosigners, unknown_cosigners_types)
def test_fingerprint(ghost_machine_xpub_44):
key = Key.parse_xpub(ghost_machine_xpub_44)
assert key.fingerprint == "81f802e3"
def test_derivation(ghost_machine_zpub):
key = Key.parse_xpub(f"[81f802e3/84'/0'/3]{ghost_machine_zpub}")
assert key.derivation == "m/84h/0h/3"
def test_xpub(ghost_machine_ypub, ghost_machine_xpub_49):
key = Key.parse_xpub(ghost_machine_ypub)
assert key.xpub == ghost_machine_xpub_49
def test_purpose(ghost_machine_ypub):
key = Key.parse_xpub(ghost_machine_ypub)
assert key.purpose == "Single (Nested)"
def test_key_type(ghost_machine_ypub):
key = Key.parse_xpub(ghost_machine_ypub)
assert key.key_type == "sh-wpkh"
