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 make_xpub(xpub, s):
version, _, _, _, c, cK = deserialize_xpub(xpub)
cK2, c2 = qtum._CKD_pub(cK, c, s)
return qtum.serialize_xpub(version, c2, cK2)