def auth_counterparty(self, nick, btc_sig, cj_pub):
"""Validate the counterpartys claim to own the btc
address/pubkey that will be used for coinjoining
with an ecdsa verification."""
# crypto_boxes[nick][0] = maker_pubkey
if not btc.ecdsa_verify(self.crypto_boxes[nick][0], btc_sig, cj_pub):
log.debug('signature didnt match pubkey and message')
return False
return True
def auth_counterparty(self, nick, btc_sig, cj_pub):
"""Validate the counterpartys claim to own the btc
address/pubkey that will be used for coinjoining
with an ecdsa verification."""
# crypto_boxes[nick][0] = maker_pubkey
if not btc.ecdsa_verify(self.crypto_boxes[nick][0], btc_sig, cj_pub):
log.debug('signature didnt match pubkey and message')
return False
return True
def auth_counterparty(self, btc_sig, auth_pub, maker_pk):
"""Validate the counterpartys claim to own the btc
address/pubkey that will be used for coinjoining
with an ecdsa verification.
"""
try:
if not btc.ecdsa_verify(maker_pk, btc_sig, auth_pub):
jlog.debug('signature didnt match pubkey and message')
return False
except Exception as e:
jlog.info("Failed ecdsa verify for maker pubkey: " + str(maker_pk))
jlog.info("Exception was: " + repr(e))
return False
return True
def auth_counterparty(self, nick, i_utxo_pubkey, btc_sig):
self.i_utxo_pubkey = i_utxo_pubkey
if not btc.ecdsa_verify(self.taker_pk, btc_sig, self.i_utxo_pubkey):
print('signature didnt match pubkey and message')
return False
# authorisation of taker passed
# (but input utxo pubkey is checked in verify_unsigned_tx).
# Send auth request to taker
# TODO the next 2 lines are a little inefficient.
btc_key = self.maker.wallet.get_key_from_addr(self.cj_addr)
btc_pub = btc.privtopub(btc_key)
btc_sig = btc.ecdsa_sign(self.kp.hex_pk(), btc_key)
self.maker.msgchan.send_ioauth(nick, self.utxos.keys(), btc_pub,
self.change_addr, btc_sig)
return True
def auth_counterparty(self, nick, i_utxo_pubkey, btc_sig):
self.i_utxo_pubkey = i_utxo_pubkey
if not btc.ecdsa_verify(self.taker_pk, btc_sig, self.i_utxo_pubkey):
print('signature didnt match pubkey and message')
return False
# authorisation of taker passed
# (but input utxo pubkey is checked in verify_unsigned_tx).
# Send auth request to taker
# TODO the next 2 lines are a little inefficient.
btc_key = self.maker.wallet.get_key_from_addr(self.cj_addr)
btc_pub = btc.privtopub(btc_key)
btc_sig = btc.ecdsa_sign(self.kp.hex_pk(), btc_key)
self.maker.msgchan.send_ioauth(nick, self.utxos.keys(), btc_pub,
self.change_addr, btc_sig)
return True
def on_JM_REQUEST_MSGSIG_VERIFY(self, msg, fullmsg, sig, pubkey, nick,
hashlen, max_encoded, hostid):
verif_result = True
if not btc.ecdsa_verify(str(msg), sig, pubkey):
jlog.debug("nick signature verification failed, ignoring.")
verif_result = False
#check that nick matches hash of pubkey
nick_pkh_raw = hashlib.sha256(pubkey).digest()[:hashlen]
nick_stripped = nick[2:2 + max_encoded]
#strip right padding
nick_unpadded = ''.join([x for x in nick_stripped if x != 'O'])
if not nick_unpadded == btc.changebase(nick_pkh_raw, 256, 58):
jlog.debug("Nick hash check failed, expected: " + str(nick_unpadded)
+ ", got: " + str(btc.changebase(nick_pkh_raw, 256, 58)))
verif_result = False
d = self.callRemote(commands.JMMsgSignatureVerify,
verif_result=verif_result,
nick=nick,
fullmsg=fullmsg,
hostid=hostid)
self.defaultCallbacks(d)
return {'accepted': True}
