def get_xpub(self, bip32_path, xtype, creating=False):
address_n = parse_path(bip32_path)
with self.run_flow(creating_wallet=creating):
node = trezorlib.btc.get_public_node(self.client, address_n).node
return serialize_xpub(xtype, node.chain_code, node.public_key,
node.depth, self.i4b(node.fingerprint),
self.i4b(node.child_num))
def get_xpub(self, bip32_path, xtype):
self.checkDevice()
# bip32_path is of the form 44'/0'/1'
# S-L-O-W - we don't handle the fingerprint directly, so compute
# it manually from the previous node
# This only happens once so it's bearable
#self.get_client() # prompt for the PIN before displaying the dialog if necessary
#self.handler.show_message("Computing master public key")
if xtype in ['p2wpkh', 'p2wsh'] and not self.supports_native_segwit():
raise Exception(MSG_NEEDS_FW_UPDATE_SEGWIT)
if xtype in ['p2wpkh-p2sh', 'p2wsh-p2sh'
] and not self.supports_segwit():
raise Exception(MSG_NEEDS_FW_UPDATE_SEGWIT)
splitPath = bip32_path.split('/')
if splitPath[0] == 'm':
splitPath = splitPath[1:]
bip32_path = bip32_path[2:]
fingerprint = 0
if len(splitPath) > 1:
prevPath = "/".join(splitPath[0:len(splitPath) - 1])
try:
nodeData = self.dongleObject.getWalletPublicKey(prevPath)
except BTChipException as e:
if e.sw == 0x6f04:
raise Exception(
'error 6f04, Please update your firmware or try Bitcoin mode'
)
raise e
publicKey = compress_public_key(nodeData['publicKey'])
h = hashlib.new('ripemd160')
h.update(hashlib.sha256(publicKey).digest())
fingerprint = unpack(">I", h.digest()[0:4])[0]
nodeData = self.dongleObject.getWalletPublicKey(bip32_path)
publicKey = compress_public_key(nodeData['publicKey'])
depth = len(splitPath)
lastChild = splitPath[len(splitPath) - 1].split('\'')
childnum = int(lastChild[0]) if len(
lastChild) == 1 else 0x80000000 | int(lastChild[0])
xpub = serialize_xpub(xtype, nodeData['chainCode'], publicKey, depth,
self.i4b(fingerprint), self.i4b(childnum))
return xpub
def get_xpub(self, bip32_path, xtype):
address_n = self.expand_path(bip32_path)
creating = False
node = self.get_public_node(address_n, creating).node
return serialize_xpub(xtype, node.chain_code, node.public_key, node.depth, self.i4b(node.fingerprint), self.i4b(node.child_num))