def ecdsa_verify(msg, sig, pub, usehex=True):
sig = base64.b64decode(sig)
if usehex:
pub = binascii.unhexlify(pub)
verif_key = get_ecdsa_verifying_key(pub)
return verif_key.verify_digest(sig,
ebt.Hash(ebt.msg_magic(msg)),
sigdecode=sigdecode_der)
def ecdsa_sign(msg, priv, usehex=True):
if usehex:
priv = binascii.unhexlify(priv)
compressed = False
if len(priv) == 33 and priv[-1]=="\x01":
compressed = True
signkey = ebt.EC_KEY(priv[:32])
private_key = ebt.MySigningKey.from_secret_exponent(signkey.secret,
curve=SECP256k1)
sig = private_key.sign_digest_deterministic(ebt.Hash(ebt.msg_magic(msg)),
hashfunc=hashlib.sha256,
sigencode = sigencode_der)
return base64.b64encode(sig)
def load_wallet(self, wallet):
self.wallet = wallet
if not self.is_available():
return
mpk = self.wallet.get_master_public_keys()
self.cosigner_list = []
for key, xpub in mpk.items():
keyname = key + '/' # fixme
K = bitcoin.deserialize_xkey(xpub)[-1].encode('hex')
_hash = bitcoin.Hash(K).encode('hex')
if self.wallet.master_private_keys.get(keyname):
self.listener.set_key(keyname, _hash)
else:
self.cosigner_list.append((xpub, K, _hash))
def load_wallet(self, wallet, window):
self.wallet = wallet
if not self.is_available():
return
if self.listener is None:
self.listener = Listener(self)
self.listener.start()
self.cosigner_list = []
for key, xpub in self.wallet.master_public_keys.items():
K = bitcoin.deserialize_xkey(xpub)[-1].encode('hex')
_hash = bitcoin.Hash(K).encode('hex')
if self.wallet.master_private_keys.get(key):
self.listener.set_key(key, _hash)
else:
self.cosigner_list.append((xpub, K, _hash))
def update(self, window):
wallet = window.wallet
if wallet.wallet_type not in ['2of2', '2of3']:
return
if self.listener is None:
self.print_error("starting listener")
self.listener = Listener(self)
self.listener.start()
elif self.listener:
self.print_error("shutting down listener")
self.listener.stop()
self.listener = None
self.keys = []
self.cosigner_list = []
for key, xpub in wallet.master_public_keys.items():
K = bitcoin.deserialize_xkey(xpub)[-1].encode('hex')
_hash = bitcoin.Hash(K).encode('hex')
if wallet.master_private_keys.get(key):
self.keys.append((key, _hash, window))
else:
self.cosigner_list.append((window, xpub, K, _hash))
if self.listener:
self.listener.set_keyhashes([t[1] for t in self.keys])
def update(self, window):
wallet = window.wallet
if type(wallet) != Multisig_Wallet:
return
if self.listener is None:
self.print_error("starting listener")
self.listener = Listener(self)
self.listener.start()
elif self.listener:
self.print_error("shutting down listener")
self.listener.stop()
self.listener = None
self.keys = []
self.cosigner_list = []
for key, keystore in wallet.keystores.items():
xpub = keystore.get_master_public_key()
K = bitcoin.deserialize_xpub(xpub)[-1]
_hash = bh2u(bitcoin.Hash(K))
if not keystore.is_watching_only():
self.keys.append((key, _hash, window))
else:
self.cosigner_list.append((window, xpub, K, _hash))
if self.listener:
self.listener.set_keyhashes([t[1] for t in self.keys])
