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]) nodeData = self.dongleObject.getWalletPublicKey(prevPath) 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 = bitcoin.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))
def get_xpub(self, bip32_path, xtype): assert xtype in ('standard', 'p2wpkh-p2sh', 'p2wpkh') reply = self._get_xpub(bip32_path) if reply: xpub = reply['xpub'] # Change type of xpub to the requested type. The firmware # only ever returns the mainnet standard type, but it is agnostic # to the type when signing. if xtype != 'standard' or constants.net.TESTNET: _, depth, fingerprint, child_number, c, cK = deserialize_xpub(xpub, net=constants.BitcoinMainnet) xpub = serialize_xpub(xtype, c, cK, depth, fingerprint, child_number) return xpub else: raise Exception('no reply')