def test_valid_sigs(setup_ecc):
for v in vectors['vectors']:
msg = v['msg']
sig = v['sig']
priv = v['privkey']
assert sig == btc.ecdsa_raw_sign(msg, priv, True, rawmsg=True) + '01'
#check that the signature verifies against the key(pair)
pubkey = btc.privtopub(priv)
assert btc.ecdsa_raw_verify(msg, pubkey, sig[:-2], True, rawmsg=True)
#check that it fails to verify against corrupted signatures
for i in [0, 1, 2, 4, 7, 25, 55]:
#corrupt one byte
binsig = binascii.unhexlify(sig)
checksig = binascii.hexlify(binsig[:i] +
chr((ord(binsig[i]) + 1) % 256) +
binsig[i + 1:-1])
#this kind of corruption will sometimes lead to an assert
#failure (if the DER format is corrupted) and sometimes lead
#to a signature verification failure.
try:
res = btc.ecdsa_raw_verify(msg,
pubkey,
checksig,
True,
rawmsg=True)
except:
continue
assert res == False
def make_valid_nick(i=0):
nick_priv = hashlib.sha256(chr(i) * 16).hexdigest() + '01'
nick_pubkey = bitcoin.privtopub(nick_priv)
nick_pkh_raw = hashlib.sha256(nick_pubkey).digest()[:NICK_HASH_LENGTH]
nick_pkh = bitcoin.changebase(nick_pkh_raw, 256, 58)
#right pad to maximum possible; b58 is not fixed length.
#Use 'O' as one of the 4 not included chars in base58.
nick_pkh += 'O' * (NICK_MAX_ENCODED - len(nick_pkh))
#The constructed length will be 1 + 1 + NICK_MAX_ENCODED
return JOINMARKET_NICK_HEADER + str(JM_VERSION) + nick_pkh
def donation_address(reusable_donation_pubkey=None): #pragma: no cover
#Donation code currently disabled, so not tested.
if not reusable_donation_pubkey:
reusable_donation_pubkey = ('02be838257fbfddabaea03afbb9f16e852'
'9dfe2de921260a5c46036d97b5eacf2a')
sign_k = binascii.hexlify(os.urandom(32)).decode('ascii')
c = btc.sha256(btc.multiply(sign_k, reusable_donation_pubkey, True))
sender_pubkey = btc.add_pubkeys(
[reusable_donation_pubkey, btc.privtopub(c + '01', True)], True)
sender_address = btc.pubtoaddr(sender_pubkey, get_p2pk_vbyte())
log.debug('sending coins to ' + sender_address)
return sender_address, sign_k
def set_nick(self):
self.nick_pubkey = btc.privtopub(self.nick_priv)
self.nick_pkh_raw = btc.bin_sha256(
self.nick_pubkey)[:self.nick_hashlen]
self.nick_pkh = btc.b58encode(self.nick_pkh_raw)
#right pad to maximum possible; b58 is not fixed length.
#Use 'O' as one of the 4 not included chars in base58.
self.nick_pkh += 'O' * (self.nick_maxencoded - len(self.nick_pkh))
#The constructed length will be 1 + 1 + NICK_MAX_ENCODED
self.nick = self.nick_header + str(self.jm_version) + self.nick_pkh
jm_single().nickname = self.nick
informuser = getattr(self.client, "inform_user_details", None)
if callable(informuser):
informuser()
def test_spend_p2sh_p2wpkh_multi(setup_segwit, wallet_structure, in_amt,
amount, segwit_amt, segwit_ins, o_ins):
"""Creates a wallet from which non-segwit inputs/
outputs can be created, constructs one or more
p2wpkh in p2sh spendable utxos (by paying into the
corresponding address) and tests spending them
in combination.
wallet_structure is in accordance with commontest.make_wallets, see docs there
in_amt is the amount to pay into each address into the wallet (non-segwit adds)
amount (in satoshis) is how much we will pay to the output address
segwit_amt in BTC is the amount we will fund each new segwit address with
segwit_ins is a list of input indices (where to place the funding segwit utxos)
other_ins is a list of input indices (where to place the funding non-sw utxos)
"""
wallet = make_wallets(1, wallet_structure, in_amt,
walletclass=Wallet)[0]['wallet']
jm_single().bc_interface.sync_wallet(wallet)
other_ins = {}
ctr = 0
for k, v in wallet.unspent.iteritems():
#only extract as many non-segwit utxos as we need;
#doesn't matter which they are
if ctr == len(o_ins):
break
other_ins[k] = (v["value"], wallet.get_key_from_addr(v["address"]),
o_ins[ctr])
ctr += 1
ins_sw = {}
for i in range(len(segwit_ins)):
#build segwit ins from "deterministic-random" keys;
#intended to be the same for each run with the same parameters
seed = json.dumps(
[i, wallet_structure, in_amt, amount, segwit_ins, other_ins])
priv = btc.sha256(seed) + "01"
pub = btc.privtopub(priv)
#magicbyte is testnet p2sh
addr1 = btc.pubkey_to_p2sh_p2wpkh_address(pub, magicbyte=196)
print "got address for p2shp2wpkh: " + addr1
txid = jm_single().bc_interface.grab_coins(addr1, segwit_amt)
#TODO - int cast, fix?
ins_sw[get_utxo_from_txid(txid, addr1)] = (int(segwit_amt * 100000000),
priv, segwit_ins[i])
#make_sign_and_push will sanity check the received amount is correct
txid = make_sign_and_push(ins_sw, wallet, amount, other_ins)
#will always be False if it didn't push.
assert txid
def on_auth_received(self, nick, offer, commitment, cr, amount, kphex):
"""Receives data on proposed transaction offer from daemon, verifies
commitment, returns necessary data to send ioauth message (utxos etc)
"""
#check the validity of the proof of discrete log equivalence
tries = jm_single().config.getint("POLICY", "taker_utxo_retries")
def reject(msg):
jlog.info("Counterparty commitment not accepted, reason: " + msg)
return (False, )
# deserialize the commitment revelation
try:
cr_dict = PoDLE.deserialize_revelation(cr)
except PoDLEError as e:
reason = repr(e)
return reject(reason)
if not verify_podle(str(cr_dict['P']),
str(cr_dict['P2']),
str(cr_dict['sig']),
str(cr_dict['e']),
str(commitment),
index_range=range(tries)):
reason = "verify_podle failed"
return reject(reason)
#finally, check that the proffered utxo is real, old enough, large enough,
#and corresponds to the pubkey
res = jm_single().bc_interface.query_utxo_set([cr_dict['utxo']],
includeconf=True)
if len(res) != 1 or not res[0]:
reason = "authorizing utxo is not valid"
return reject(reason)
age = jm_single().config.getint("POLICY", "taker_utxo_age")
if res[0]['confirms'] < age:
reason = "commitment utxo not old enough: " + str(
res[0]['confirms'])
return reject(reason)
reqd_amt = int(
amount *
jm_single().config.getint("POLICY", "taker_utxo_amtpercent") /
100.0)
if res[0]['value'] < reqd_amt:
reason = "commitment utxo too small: " + str(res[0]['value'])
return reject(reason)
try:
if not self.wallet.pubkey_has_script(unhexlify(cr_dict['P']),
unhexlify(res[0]['script'])):
raise EngineError()
except EngineError:
reason = "Invalid podle pubkey: " + str(cr_dict['P'])
return reject(reason)
# authorisation of taker passed
#Find utxos for the transaction now:
utxos, cj_addr, change_addr = self.oid_to_order(offer, amount)
if not utxos:
#could not find funds
return (False, )
self.wallet.update_cache_index()
# Construct data for auth request back to taker.
# Need to choose an input utxo pubkey to sign with
# (no longer using the coinjoin pubkey from 0.2.0)
# Just choose the first utxo in self.utxos and retrieve key from wallet.
auth_address = utxos[list(utxos.keys())[0]]['address']
auth_key = self.wallet.get_key_from_addr(auth_address)
auth_pub = btc.privtopub(auth_key)
btc_sig = btc.ecdsa_sign(kphex, auth_key)
return (True, utxos, auth_pub, cj_addr, change_addr, btc_sig)
