# flake8: noqa
# -*- coding: utf-8 -*-
"""
High-level composition utilities combining deterministic keys and transactions.
"""
from .deterministic import *
from .transaction import *
from .main import *
# BIP32 hierarchical deterministic multisig script
[docs]
def bip32_hdm_script(*args):
if len(args) == 3:
keys, req, path = args
else:
i, keys, path = 0, [], []
while len(args[i]) > 40:
keys.append(args[i])
i += 1
req = int(args[i])
path = map(int, args[i+1:])
pubs = sorted(map(lambda x: bip32_descend(x, path), keys))
return mk_multisig_script(pubs, req)
# BIP32 hierarchical deterministic multisig address
[docs]
def bip32_hdm_addr(*args):
return scriptaddr(bip32_hdm_script(*args))
# Setup a coinvault transaction
[docs]
def setup_coinvault_tx(tx, script):
txobj = deserialize(tx)
N = deserialize_script(script)[-2]
for inp in txobj["ins"]:
inp["script"] = serialize_script([None] * (N+1) + [script])
return serialize(txobj)
# Sign a coinvault transaction
[docs]
def sign_coinvault_tx(tx, priv):
pub = privtopub(priv)
txobj = deserialize(tx)
subscript = deserialize_script(txobj['ins'][0]['script'])
oscript = deserialize_script(subscript[-1])
k, pubs = oscript[0], oscript[1:-2]
for j in range(len(txobj['ins'])):
scr = deserialize_script(txobj['ins'][j]['script'])
for i, p in enumerate(pubs):
if p == pub:
scr[i+1] = multisign(tx, j, subscript[-1], priv)
if len(filter(lambda x: x, scr[1:-1])) >= k:
scr = [None] + filter(lambda x: x, scr[1:-1])[:k] + [scr[-1]]
txobj['ins'][j]['script'] = serialize_script(scr)
return serialize(txobj)