def add_signature(self, sigb64):
sig = base64.b64decode(sigb64).encode('hex')
inserted_sig = False
txhex = btc.serialize(self.latest_tx)
#batch retrieval of utxo data
utxo = {}
ctr = 0
for index, ins in enumerate(self.latest_tx['ins']):
utxo_for_checking = ins['outpoint']['hash'] + ':' + str(ins['outpoint']['index'])
if ins['script'] != '' or utxo_for_checking in self.input_utxos.keys():
continue
utxo[ctr] = [index, utxo_for_checking]
ctr += 1
utxo_data = common.bc_interface.query_utxo_set([x[1] for x in utxo.values()])
#insert signatures
for i,u in utxo.iteritems():
if utxo_data[i] == None:
continue
sig_good = btc.verify_tx_input(txhex, u[0], utxo_data[i]['script'], *btc.deserialize_script(sig))
if sig_good:
debug('found good sig at index=%d' % (u[0]))
self.latest_tx['ins'][u[0]]['script'] = sig
inserted_sig = True
break
if not inserted_sig:
debug('signature did not match anything in the tx')
#TODO what if the signature doesnt match anything
# nothing really to do except drop it, carry on and wonder why the
# other guy sent a failed signature
tx_signed = True
for ins in self.latest_tx['ins']:
if ins['script'] == '':
tx_signed = False
if not tx_signed:
return
debug('the entire tx is signed, ready to pushtx()')
txhex = btc.serialize(self.latest_tx)
debug('\n' + txhex)
#TODO send to a random maker or push myself
#self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
self.txid = common.bc_interface.pushtx(txhex)
debug('pushed tx ' + str(self.txid))
if self.txid == None:
debug('unable to pushtx')
if self.finishcallback != None:
self.finishcallback(self)
def normalize_transaction(tx):
_tx = deserialize(tx)
_tx['segwit'] = True
for i, vin in enumerate(_tx['ins']):
if vin.get('txinwitness', '0' * 64) == '0' * 64:
_tx['ins'][i]['txinwitness'] = ''
return serialize(_tx)
def to_rawtx(tx):
"""
Take a tx object in the moneywagon format and convert it to the format
that pybitcointools's `serialize` funcion takes, then return in raw hex
format.
"""
if tx.get('hex'):
return tx['hex']
new_tx = {}
locktime = tx.get('locktime', 0)
new_tx['locktime'] = locktime
new_tx['version'] = tx.get('version', 1)
new_tx['ins'] = [
{
'outpoint': {'hash': str(x['txid']), 'index': x['n']},
'script': str(x['scriptSig'].replace(' ', '')),
'sequence': x.get('sequence', 0xFFFFFFFF if locktime == 0 else None)
} for x in tx['inputs']
]
new_tx['outs'] = [
{
'script': str(x['scriptPubKey']),
'value': x['amount']
} for x in tx['outputs']
]
return serialize(new_tx)
def test_native_P2WSH_SIGHASH_SINGLE_ANYONECANPAY(self):
tx = TEST_CASES[2]
deserialized = deserialize(tx['unsigned'])
serialized = serialize(deserialized)
self.assertEqual(serialized, tx['unsigned'])
self.assertEqual(deserialized['locktime'], tx['locktime'])
ins = self.get_pybtc_vins(tx)
outs = self.get_pybtc_outs(tx)
generated_tx = mktx(ins, outs)
stripped_tx = strip_witness_data(generated_tx)
self.assertEqual(stripped_tx, serialized)
priv0 = self.append_compressed_flag_to_privkey(tx['ins'][1]['privkey'])
partially_signed = segwit_sign(generated_tx,
0,
priv0,
int(0.16777215 * 10**8),
hashcode=SIGHASH_SINGLE
| SIGHASH_ANYONECANPAY,
script=tx['ins'][0]['txinwitness'][1])
signed = segwit_sign(partially_signed,
1,
priv0,
int(0.16777215 * 10**8),
hashcode=SIGHASH_SINGLE | SIGHASH_ANYONECANPAY,
script=tx['ins'][1]['txinwitness'][1],
separator_index=tx['ins'][1]['separator'])
self.assertEqual(signed, tx['signed'])
print('[Native P2WSH] SIGHASH_SINGLE OK')
def push(self):
tx = btc.serialize(self.latest_tx)
log.debug('\n' + tx)
self.txid = btc.txhash(tx)
log.debug('txid = ' + self.txid)
tx_broadcast = jm_single().config.get('POLICY', 'tx_broadcast')
if tx_broadcast == 'self':
pushed = jm_single().bc_interface.pushtx(tx)
elif tx_broadcast in ['random-peer', 'not-self']:
n = len(self.active_orders)
if tx_broadcast == 'random-peer':
i = random.randrange(n + 1)
else:
i = random.randrange(n)
if i == n:
pushed = jm_single().bc_interface.pushtx(tx)
else:
self.msgchan.push_tx(self.active_orders.keys()[i], tx)
pushed = True
elif tx_broadcast == 'random-maker':
crow = self.db.execute(
'SELECT DISTINCT counterparty FROM orderbook ORDER BY ' +
'RANDOM() LIMIT 1;'
).fetchone()
counterparty = crow['counterparty']
log.debug('pushing tx to ' + counterparty)
self.msgchan.push_tx(counterparty, tx)
pushed = True
if not pushed:
log.debug('unable to pushtx')
return pushed
def sign_donation_tx(tx, i, priv):
from bitcoin.main import fast_multiply, decode_privkey, G, inv, N
from bitcoin.transaction import der_encode_sig
k = sign_k
hashcode = btc.SIGHASH_ALL
i = int(i)
if len(priv) <= 33:
priv = btc.safe_hexlify(priv)
pub = btc.privkey_to_pubkey(priv)
address = btc.pubkey_to_address(pub)
signing_tx = btc.signature_form(tx, i, btc.mk_pubkey_script(address),
hashcode)
msghash = btc.bin_txhash(signing_tx, hashcode)
z = btc.hash_to_int(msghash)
# k = deterministic_generate_k(msghash, priv)
r, y = fast_multiply(G, k)
s = inv(k, N) * (z + r * decode_privkey(priv)) % N
rawsig = 27 + (y % 2), r, s
sig = der_encode_sig(*rawsig) + btc.encode(hashcode, 16, 2)
# sig = ecdsa_tx_sign(signing_tx, priv, hashcode)
txobj = btc.deserialize(tx)
txobj["ins"][i]["script"] = btc.serialize_script([sig, pub])
return btc.serialize(txobj)
def segwit_sign(tx,
i,
priv,
amount,
hashcode=SIGHASH_ALL,
script=None,
separator_index=None):
i = int(i)
txobj = tx if isinstance(tx, dict) else deserialize(tx)
if not isinstance(tx, dict) and ((not is_python2 and isinstance(re, bytes))
or not re.match('^[0-9a-fA-F]*$', tx)):
return binascii.unhexlify(sign(binascii.hexlify(tx), i, priv))
if len(priv) <= 33:
priv = binascii.hexlify(priv)
pub = privkey_to_pubkey(priv)
address = pubkey_to_address(pub)
wscript = mk_pubkey_script(address) if not script else script
stripped_script = segwit_strip_script_separator(wscript, separator_index)
signing_tx = segwit_signature_form(tx,
i,
stripped_script,
amount,
hashcode=hashcode)
rawsig = ecdsa_raw_sign(
hashlib.sha256(
hashlib.sha256(
binascii.unhexlify(signing_tx)).digest()).hexdigest(), priv)
sig = der_encode_sig(*rawsig) + encode(hashcode, 16, 2)
txobj['ins'][i]['txinwitness'] = [sig, pub if not script else script]
return serialize(txobj)
def to_rawtx(tx):
"""
Take a tx object in the moneywagon format and convert it to the format
that pybitcointools's `serialize` funcion takes, then return in raw hex
format.
"""
if tx.get('hex'):
return tx['hex']
new_tx = {}
locktime = tx.get('locktime', 0)
new_tx['locktime'] = locktime
new_tx['version'] = tx.get('version', 1)
new_tx['ins'] = [
{
'outpoint': {'hash': str(x['txid']), 'index': x['n']},
'script': str(x['scriptSig'].replace(' ', '')),
'sequence': x.get('sequence', 0xFFFFFFFF if locktime == 0 else None)
} for x in tx['inputs']
]
new_tx['outs'] = [
{
'script': str(x['scriptPubKey']),
'value': x['amount']
} for x in tx['outputs']
]
return serialize(new_tx)
def push(self):
tx = btc.serialize(self.latest_tx)
log.debug('\n' + tx)
self.txid = btc.txhash(tx)
log.debug('txid = ' + self.txid)
tx_broadcast = jm_single().config.get('POLICY', 'tx_broadcast')
if tx_broadcast == 'self':
pushed = jm_single().bc_interface.pushtx(tx)
elif tx_broadcast in ['random-peer', 'not-self']:
n = len(self.active_orders)
if tx_broadcast == 'random-peer':
i = random.randrange(n + 1)
else:
i = random.randrange(n)
if i == n:
pushed = jm_single().bc_interface.pushtx(tx)
else:
self.msgchan.push_tx(self.active_orders.keys()[i], tx)
pushed = True
elif tx_broadcast == 'random-maker':
crow = self.db.execute(
'SELECT DISTINCT counterparty FROM orderbook ORDER BY ' +
'RANDOM() LIMIT 1;').fetchone()
counterparty = crow['counterparty']
log.debug('pushing tx to ' + counterparty)
self.msgchan.push_tx(counterparty, tx)
pushed = True
if not pushed:
log.debug('unable to pushtx')
return pushed
def sign_donation_tx(tx, i, priv):
from bitcoin.main import fast_multiply, decode_privkey, G, inv, N
from bitcoin.transaction import der_encode_sig
k = sign_k
hashcode = btc.SIGHASH_ALL
i = int(i)
if len(priv) <= 33:
priv = btc.safe_hexlify(priv)
pub = btc.privkey_to_pubkey(priv)
address = btc.pubkey_to_address(pub)
signing_tx = btc.signature_form(
tx, i, btc.mk_pubkey_script(address), hashcode)
msghash = btc.bin_txhash(signing_tx, hashcode)
z = btc.hash_to_int(msghash)
# k = deterministic_generate_k(msghash, priv)
r, y = fast_multiply(G, k)
s = inv(k, N) * (z + r * decode_privkey(priv)) % N
rawsig = 27 + (y % 2), r, s
sig = der_encode_sig(*rawsig) + btc.encode(hashcode, 16, 2)
# sig = ecdsa_tx_sign(signing_tx, priv, hashcode)
txobj = btc.deserialize(tx)
txobj["ins"][i]["script"] = btc.serialize_script([sig, pub])
return btc.serialize(txobj)
def sign(tx, i, priv, t="default", script="", hashcode=SIGHASH_ALL):
i = int(i)
#if (not is_python2 and isinstance(re, bytes)) or not re.match('^[0-9a-fA-F]*$', tx):
if not re.match('^[0-9a-fA-F]*$', tx):
return binascii.unhexlify(
custom_sign(safe_hexlify(tx), i, priv, hashcode))
if len(priv) <= 33:
priv = b.safe_hexlify(priv)
pub = b.privkey_to_pubkey(priv)
address = b.pubkey_to_address(pub)
if t not in ["atomic_1", "atomic_2"]:
script = b.mk_pubkey_script(address)
if script == "": error()
signing_tx = b.signature_form(
tx, i, script,
hashcode) #mk_pubkey_scrip needs to be our custom scriptn
sig = b.ecdsa_tx_sign(signing_tx, priv, hashcode)
txobj = b.deserialize(tx)
if t == "atomic_1":
txobj["ins"][i]["script"] = b.serialize_script([sig])
if t == "atomic_2":
old_sig = txobj["ins"][i]["script"]
txobj["ins"][i]["script"] = b.serialize_script([old_sig, sig, 1])
else:
txobj["ins"][i]["script"] = b.serialize_script([sig, pub])
return b.serialize(txobj)
def test_native_P2WSH_SIGHASH_SINGLE_ANYONECANPAY(self):
tx = TEST_CASES[2]
deserialized = deserialize(tx['unsigned'])
serialized = serialize(deserialized)
self.assertEqual(serialized, tx['unsigned'])
self.assertEqual(deserialized['locktime'], tx['locktime'])
ins = self.get_pybtc_vins(tx)
outs = self.get_pybtc_outs(tx)
generated_tx = mktx(ins, outs)
stripped_tx = strip_witness_data(generated_tx)
self.assertEqual(stripped_tx, serialized)
priv0 = self.append_compressed_flag_to_privkey(tx['ins'][1]['privkey'])
partially_signed = segwit_sign(generated_tx,
0,
priv0,
int(0.16777215 * 10**8),
hashcode=SIGHASH_SINGLE|SIGHASH_ANYONECANPAY,
script=tx['ins'][0]['txinwitness'][1])
signed = segwit_sign(partially_signed,
1,
priv0,
int(0.16777215 * 10 ** 8),
hashcode=SIGHASH_SINGLE|SIGHASH_ANYONECANPAY,
script=tx['ins'][1]['txinwitness'][1],
separator_index=tx['ins'][1]['separator'])
self.assertEqual(signed, tx['signed'])
print('[Native P2WSH] SIGHASH_SINGLE OK')
def main():
locktime = args.locktime
privkey = args.privkey
address = args.address
script = getRedeemScript(locktime, privkey)
ins, balance = getBalance(scriptaddr(script, 50))
len_inputs = len(ins)
tx = ''
if balance > 0 and check_addr(address) and is_privkey(privkey):
# Fee
fee = round(base_fee + fee_per_input * len_inputs, 8)
# Outputs
out_value = int((balance - fee) * COIN)
outs = [{'address' : address, 'value' : out_value}]
# Make unsigned transaction
tx = mktx(ins, outs)
# Append nLockTime and reset nSequence
unpacked = deserialize(tx)
unpacked['locktime'] = locktime
for i in range(len_inputs):
unpacked['ins'][i]['sequence'] = 0
tx = serialize(unpacked)
# get all signatures
sigs = []
for i in range(len_inputs):
sigs.append(multisign(tx, i, script, privkey))
# sign inputs
unpacked = deserialize(tx)
for i in range(len_inputs):
unpacked['ins'][i]['script'] = getLen(sigs[i]) + sigs[i]
unpacked['ins'][i]['script'] += getLen(script) + script
tx = serialize(unpacked)
print('> BALANCE (%s): %f' % (scriptaddr(script, 50), balance))
if len(tx) > 0:
txid = broadcast(tx)
print('> RESPONSE: %s' % txid.text)
def tx_serialize( tx ):
"""
Convert a bitcoin-given transaction into its hex string.
tx format is {'vin': [...], 'vout': [...], 'locktime': ..., 'version': ...},
with the same formatting rules as getrawtransaction.
(in particular, each value in vout is a Decimal, in BTC)
"""
tx_ins = []
tx_outs = []
try:
for inp in tx['vin']:
next_inp = {
"outpoint": {
"index": int(inp['vout']),
"hash": str(inp['txid'])
}
}
if 'sequence' in inp:
next_inp['sequence'] = int(inp['sequence'])
else:
next_inp['sequence'] = pybitcoin.UINT_MAX
if 'scriptSig' in inp:
next_inp['script'] = str(inp['scriptSig']['hex'])
else:
next_inp['script'] = ""
tx_ins.append(next_inp)
for out in tx['vout']:
assert out['value'] < 1000, "High transaction value\n%s" % simplejson.dumps(tx, indent=4, sort_keys=True)
next_out = {
'value': int(Decimal(out['value']) * Decimal(10**8)),
'script': str(out['scriptPubKey']['hex'])
}
tx_outs.append(next_out)
tx_fields = {
"locktime": int(tx['locktime']),
"version": int(tx['version']),
"ins": tx_ins,
"outs": tx_outs
}
tx_serialized = bitcoin.serialize( tx_fields )
return str(tx_serialized)
except KeyError, ke:
if tx_is_coinbase(tx) and 'hex' in tx.keys():
tx_serialized = tx['hex']
return str(tx_serialized)
import simplejson
log.error("Key error in :\n%s" % simplejson.dumps(tx, indent=4, sort_keys=True))
traceback.print_exc()
raise ke
def on_peer_announce(tx):
txhash = bitcoin.txhash(bitcoin.serialize(tx["tx"]))
if txhash in self.subscriptions[address][0] and self.subscriptions[address][0][txhash][0] != "complete":
self.subscriptions[address][0][txhash][0] += 1
if self.subscriptions[address][0][txhash][0] >= self.subscriptions[address][0][txhash][1]:
self.subscriptions[address][0][txhash][0] = "complete"
self.subscriptions[address][1](tx["tx"])
elif txhash not in self.subscriptions[address][0]:
self.subscriptions[address][0][txhash] = [1, len(self.peers)/2]
def self_sign_and_push(self):
#now sign it ourselves
tx = btc.serialize(self.latest_tx)
for index, ins in enumerate(self.latest_tx['ins']):
utxo = ins['outpoint']['hash'] + ':' + str(ins['outpoint']['index'])
if utxo not in self.input_utxos.keys():
continue
addr = self.input_utxos[utxo]['address']
tx = btc.sign(tx, index, self.wallet.get_key_from_addr(addr))
txhex = btc.serialize(self.latest_tx)
debug('\n' + txhex)
debug('txid = ' + btc.txhash(tx))
#TODO send to a random maker or push myself
#TODO need to check whether the other party sent it
#self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
self.txid = common.bc_interface.pushtx(tx)
if self.txid == None:
debug('unable to pushtx')
def add_signature(self, nick, sigb64):
if nick not in self.nonrespondants:
debug('add_signature => nick=' + nick + ' not in nonrespondants ' + str(self.nonrespondants))
return
sig = base64.b64decode(sigb64).encode('hex')
inserted_sig = False
txhex = btc.serialize(self.latest_tx)
#batch retrieval of utxo data
utxo = {}
ctr = 0
for index, ins in enumerate(self.latest_tx['ins']):
utxo_for_checking = ins['outpoint']['hash'] + ':' + str(ins['outpoint']['index'])
if ins['script'] != '' or utxo_for_checking in self.input_utxos.keys():
continue
utxo[ctr] = [index, utxo_for_checking]
ctr += 1
utxo_data = common.bc_interface.query_utxo_set([x[1] for x in utxo.values()])
#insert signatures
for i,u in utxo.iteritems():
if utxo_data[i] == None:
continue
sig_good = btc.verify_tx_input(txhex, u[0], utxo_data[i]['script'], *btc.deserialize_script(sig))
if sig_good:
debug('found good sig at index=%d' % (u[0]))
self.latest_tx['ins'][u[0]]['script'] = sig
inserted_sig = True
#check if maker has sent everything possible
self.utxos[nick].remove(u[1])
if len(self.utxos[nick]) == 0:
debug('nick = ' + nick + ' sent all sigs, removing from nonrespondant list')
self.nonrespondants.remove(nick)
break
if not inserted_sig:
debug('signature did not match anything in the tx')
#TODO what if the signature doesnt match anything
# nothing really to do except drop it, carry on and wonder why the
# other guy sent a failed signature
tx_signed = True
for ins in self.latest_tx['ins']:
if ins['script'] == '':
tx_signed = False
if not tx_signed:
return
self.end_timeout_thread = True
self.all_responded = True
with self.timeout_lock:
self.timeout_lock.notify()
debug('all makers have sent their signatures')
for index, ins in enumerate(self.latest_tx['ins']):
#remove placeholders
if ins['script'] == 'deadbeef':
ins['script'] = ''
if self.finishcallback != None:
self.finishcallback(self)
def push(self, txd):
tx = btc.serialize(txd)
debug('\n' + tx)
debug('txid = ' + btc.txhash(tx))
#TODO send to a random maker or push myself
#TODO need to check whether the other party sent it
#self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
self.txid = common.bc_interface.pushtx(tx)
if self.txid == None:
debug('unable to pushtx')
def reorder_sigs( self, sigs ):
reorderedSigs = []
stx = bitcoin.serialize( self.tx )
for pub in self.pubs:
for sig in sigs:
if bitcoin.verify_tx_input( stx, 0, self.redeemScript, sig, pub ):
reorderedSigs.append( sig )
break
return reorderedSigs
def self_sign(self): #now sign it ourselves tx = btc.serialize(self.latest_tx) for index, ins in enumerate(self.latest_tx['ins']): utxo = ins['outpoint']['hash'] + ':' + str(ins['outpoint']['index']) if utxo not in self.input_utxos.keys(): continue addr = self.input_utxos[utxo]['address'] tx = self.sign_tx(tx, index, self.wallet.get_key_from_addr(addr)) self.latest_tx = btc.deserialize(tx)
def push(self, txd):
tx = btc.serialize(txd)
debug('\n' + tx)
debug('txid = ' + btc.txhash(tx))
#TODO send to a random maker or push myself
#TODO need to check whether the other party sent it
#self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
self.txid = common.bc_interface.pushtx(tx)
if self.txid == None:
debug('unable to pushtx')
def finishcallback(self, coinjointx):
if coinjointx.all_responded:
tx = btc.serialize(coinjointx.latest_tx)
print 'unsigned tx = \n\n' + tx + '\n'
log.debug('created unsigned tx, ending')
self.taker.msgchan.shutdown()
return
self.ignored_makers += coinjointx.nonrespondants
log.debug('recreating the tx, ignored_makers=' + str(
self.ignored_makers))
self.create_tx()
def tx_serialize( inputs, outputs, locktime, version ):
"""
Given (possibly signed) inputs and outputs, convert them
into a hex string.
Each input must have:
* transaction_hash: string
* output_index: int
* [optional] sequence: int
* [optional] script_sig: str
Each output must have:
* value: int
* script_hex: string
"""
tmp_inputs = []
tmp_outputs = []
# convert to a format bitcoin understands
for inp in inputs:
tmp_inp = {
"outpoint": {
"index": inp["output_index"],
"hash": inp["transaction_hash"]
}
}
if "sequence" in inp:
tmp_inp["sequence"] = inp["sequence"]
else:
tmp_inp["sequence"] = pybitcoin.UINT_MAX
if "script_sig" in inp:
tmp_inp["script"] = inp["script_sig"]
else:
tmp_inp["script"] = ""
tmp_inputs.append( tmp_inp )
for out in outputs:
tmp_out = {
"value": out["value"],
"script": out["script_hex"]
}
tmp_outputs.append( tmp_out )
txobj = {
"locktime": locktime,
"version": version,
"ins": tmp_inputs,
"outs": tmp_outputs
}
return bitcoin.serialize( txobj )
def finishcallback(self, coinjointx):
if coinjointx.all_responded:
tx = btc.serialize(coinjointx.latest_tx)
print 'unsigned tx = \n\n' + tx + '\n'
log.debug('created unsigned tx, ending')
self.taker.msgchan.shutdown()
return
self.ignored_makers += coinjointx.nonrespondants
log.debug('recreating the tx, ignored_makers=' +
str(self.ignored_makers))
self.create_tx()
def tx_serialize( inputs, outputs, locktime, version ):
"""
Given (possibly signed) inputs and outputs, convert them
into a hex string.
Each input must have:
* transaction_hash: string
* output_index: int
* [optional] sequence: int
* [optional] script_sig: str
Each output must have:
* value: int
* script_hex: string
"""
tmp_inputs = []
tmp_outputs = []
# convert to a format bitcoin understands
for inp in inputs:
tmp_inp = {
"outpoint": {
"index": inp["output_index"],
"hash": inp["transaction_hash"]
}
}
if "sequence" in inp:
tmp_inp["sequence"] = inp["sequence"]
else:
tmp_inp["sequence"] = pybitcoin.UINT_MAX
if "script_sig" in inp:
tmp_inp["script"] = inp["script_sig"]
else:
tmp_inp["script"] = ""
tmp_inputs.append( tmp_inp )
for out in outputs:
tmp_out = {
"value": out["value"],
"script": out["script_hex"]
}
tmp_outputs.append( tmp_out )
txobj = {
"locktime": locktime,
"version": version,
"ins": tmp_inputs,
"outs": tmp_outputs
}
return bitcoin.serialize( txobj )
def self_sign(self):
#now sign it ourselves
tx = btc.serialize(self.latest_tx)
for index, ins in enumerate(self.latest_tx['ins']):
utxo = ins['outpoint']['hash'] + ':' + str(
ins['outpoint']['index'])
if utxo not in self.input_utxos.keys():
continue
addr = self.input_utxos[utxo]['address']
tx = self.sign_tx(tx, index, self.wallet.get_key_from_addr(addr))
self.latest_tx = btc.deserialize(tx)
def add_signature(self, sigb64):
sig = base64.b64decode(sigb64).encode('hex')
inserted_sig = False
tx = btc.serialize(self.latest_tx)
for index, ins in enumerate(self.latest_tx['ins']):
if ins['script'] != '':
continue
utxo = ins['outpoint']['hash'] + ':' + str(
ins['outpoint']['index'])
utxo_data = common.bc_interface.query_utxo_set(utxo)
if utxo_data[0] == None:
continue
sig_good = btc.verify_tx_input(tx, index, utxo_data[0]['script'],
*btc.deserialize_script(sig))
if sig_good:
debug('found good sig at index=%d' % (index))
ins['script'] = sig
inserted_sig = True
break
if not inserted_sig:
debug('signature did not match anything in the tx')
#TODO what if the signature doesnt match anything
# nothing really to do except drop it, carry on and wonder why the
# other guy sent a failed signature
tx_signed = True
for ins in self.latest_tx['ins']:
if ins['script'] == '':
tx_signed = False
if not tx_signed:
return
debug('the entire tx is signed, ready to pushtx()')
txhex = btc.serialize(self.latest_tx)
debug('\n' + txhex)
#TODO send to a random maker or push myself
#self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
txid = common.bc_interface.pushtx(txhex)
debug('pushed tx ' + str(txid))
if self.finishcallback != None:
self.finishcallback(self)
def atomic(peer_pub, wallet, to, send, receive, secret_hash):
tx1=mk_spend(wallet, to, send)#puts your money into the channel.
tx=b.deserialize(tx1)
script="6352"+serialize(peer_pub)+serialize(wallet["pub"])+"52af67aa"+serialize(secret_hash)+"87"+serialize(peer_pub)+"ad68"
print("script: " +str(script))
tx['outs'][0]['script']=script
tx=b.serialize(tx)
txd=txid(tx)
txd={'output':(txd+':1'), 'block_height':None, 'value':send, 'address':wallet['address']}
refund_tx=mk_spend_txids(wallet, wallet["address"], send-fee, [txd])
return {"refund": refund_tx, "channel": tx, "script":script}
def test_native_P2WSH_SIGHASH_SINGLE(self):
tx = TEST_CASES[1]
deserialized = deserialize(tx['unsigned'])
serialized = serialize(deserialized)
self.assertEqual(serialized, tx['unsigned'])
self.assertEqual(deserialized['locktime'], tx['locktime'])
ins = self.get_pybtc_vins(tx)
outs = self.get_pybtc_outs(tx)
generated_tx = mktx(ins, outs)
stripped_tx = strip_witness_data(generated_tx)
self.assertEqual(stripped_tx, serialized)
partially_signed = p2pk_sign(stripped_tx,
0,
self.append_compressed_flag_to_privkey(
tx['ins'][0]['privkey']),
hashcode=SIGHASH_ALL)
priv0 = self.append_compressed_flag_to_privkey(
tx['ins'][1]['privkeys'][0])
priv1 = self.append_compressed_flag_to_privkey(
tx['ins'][1]['privkeys'][1])
pub0 = privtopub(priv0)
pub1 = privtopub(priv1)
REDEEM_SCRIPT_STRUCTURE = {
'keys': [pub0, pub1],
'schema': [{
'reqs': 1,
'keys': [0],
}, {
'reqs': 1,
'keys': [1],
}]
}
witness_script = mk_OPCS_multisig_script(REDEEM_SCRIPT_STRUCTURE)
sign1 = segwit_multisign(partially_signed,
1,
witness_script,
priv0,
49 * 10**8,
hashcode=SIGHASH_SINGLE)
sign2 = segwit_multisign(partially_signed,
1,
witness_script,
priv1,
49 * 10**8,
hashcode=SIGHASH_SINGLE,
separator_index=1)
signed = apply_segwit_multisignatures(partially_signed,
1,
witness_script, [sign2, sign1],
dummy=False)
self.assertEqual(signed, tx['signed'])
print('[Native P2WSH] SIGHASH_SINGLE OK')
def test_native_P2WSH_SIGHASH_SINGLE(self):
tx = TEST_CASES[1]
deserialized = deserialize(tx['unsigned'])
serialized = serialize(deserialized)
self.assertEqual(serialized, tx['unsigned'])
self.assertEqual(deserialized['locktime'], tx['locktime'])
ins = self.get_pybtc_vins(tx)
outs = self.get_pybtc_outs(tx)
generated_tx = mktx(ins, outs)
stripped_tx = strip_witness_data(generated_tx)
self.assertEqual(stripped_tx, serialized)
partially_signed = p2pk_sign(stripped_tx,
0,
self.append_compressed_flag_to_privkey(tx['ins'][0]['privkey']),
hashcode=SIGHASH_ALL)
priv0 = self.append_compressed_flag_to_privkey(tx['ins'][1]['privkeys'][0])
priv1 = self.append_compressed_flag_to_privkey(tx['ins'][1]['privkeys'][1])
pub0 = privtopub(priv0)
pub1 = privtopub(priv1)
REDEEM_SCRIPT_STRUCTURE = {
'keys': [
pub0,
pub1
],
'schema': [
{
'reqs': 1,
'keys': [0],
},
{
'reqs': 1,
'keys': [1],
}
]
}
witness_script = mk_OPCS_multisig_script(REDEEM_SCRIPT_STRUCTURE)
sign1 = segwit_multisign(partially_signed,
1,
witness_script,
priv0,
49 * 10**8,
hashcode=SIGHASH_SINGLE)
sign2 = segwit_multisign(partially_signed,
1,
witness_script,
priv1,
49 * 10 ** 8,
hashcode=SIGHASH_SINGLE,
separator_index=1)
signed = apply_segwit_multisignatures(partially_signed, 1, witness_script, [sign2, sign1], dummy=False)
self.assertEqual(signed, tx['signed'])
print('[Native P2WSH] SIGHASH_SINGLE OK')
def apply_segwit_multisignatures(tx, i, witness_program, signatures, dummy=True, nested=False):
o = [""] + signatures + [witness_program] if dummy else signatures + [witness_program]
txobj = deserialize(tx)
txobj['ins'][i]['txinwitness'] = o
if nested:
redeem_script = hashlib.sha256(binascii.unhexlify(
witness_program
)).hexdigest()
length = len(redeem_script) // 2
redeem_script = serialize_script(
[length + 2, None, redeem_script])
txobj["ins"][i]["script"] = redeem_script
return serialize(txobj)
def push(self, txd):
tx = btc.serialize(txd)
log.debug('\n' + tx)
log.debug('txid = ' + btc.txhash(tx))
# TODO send to a random maker or push myself
# TODO need to check whether the other party sent it
# self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
pushed = jm_single().bc_interface.pushtx(tx)
if pushed[0]:
self.txid = btc.txhash(tx)
else:
log.debug('unable to pushtx, reason: '+str(pushed[1]))
return pushed[0]
def add_signature(self, sigb64):
sig = base64.b64decode(sigb64).encode('hex')
inserted_sig = False
tx = btc.serialize(self.latest_tx)
for index, ins in enumerate(self.latest_tx['ins']):
if ins['script'] != '':
continue
utxo = ins['outpoint']['hash'] + ':' + str(ins['outpoint']['index'])
utxo_data = common.bc_interface.query_utxo_set(utxo)
if utxo_data[0] == None:
continue
sig_good = btc.verify_tx_input(tx, index, utxo_data[0]['script'], *btc.deserialize_script(sig))
if sig_good:
debug('found good sig at index=%d' % (index))
ins['script'] = sig
inserted_sig = True
break
if not inserted_sig:
debug('signature did not match anything in the tx')
#TODO what if the signature doesnt match anything
# nothing really to do except drop it, carry on and wonder why the
# other guy sent a failed signature
tx_signed = True
for ins in self.latest_tx['ins']:
if ins['script'] == '':
tx_signed = False
if not tx_signed:
return
debug('the entire tx is signed, ready to pushtx()')
txhex = btc.serialize(self.latest_tx)
debug('\n' + txhex)
#TODO send to a random maker or push myself
#self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
txid = common.bc_interface.pushtx(txhex)
debug('pushed tx ' + str(txid))
if self.finishcallback != None:
self.finishcallback(self)
def on_peer_announce(tx):
txhash = bitcoin.txhash(bitcoin.serialize(tx["tx"]))
if txhash in self.subscriptions[address][0] and self.subscriptions[
address][0][txhash][0] != "complete":
self.subscriptions[address][0][txhash][0] += 1
if self.subscriptions[address][0][txhash][
0] >= self.subscriptions[address][0][txhash][1]:
self.subscriptions[address][0][txhash][0] = "complete"
self.subscriptions[address][1](tx["tx"])
elif txhash not in self.subscriptions[address][0]:
self.subscriptions[address][0][txhash] = [
1, len(self.peers) / 2
]
def push(self, txd):
tx = btc.serialize(txd)
log.debug('\n' + tx)
log.debug('txid = ' + btc.txhash(tx))
# TODO send to a random maker or push myself
# TODO need to check whether the other party sent it
# self.msgchan.push_tx(self.active_orders.keys()[0], txhex)
pushed = jm_single().bc_interface.pushtx(tx)
if pushed[0]:
self.txid = pushed[1]
else:
log.debug('unable to pushtx, reason: ' + str(pushed[1]))
return pushed[0]
def apply_segwit_multisignatures(tx,
i,
witness_program,
signatures,
dummy=True,
nested=False):
txobj = deserialize(tx)
signed = apply_segwit_multisignatures_deserialized_data(txobj,
i,
witness_program,
signatures,
dummy=dummy,
nested=nested)
return serialize(signed)
def segwit_sign(tx, i, priv, amount, hashcode=SIGHASH_ALL, script=None, separator_index=None):
i = int(i)
txobj = tx if isinstance(tx, dict) else deserialize(tx)
if not isinstance(tx, dict) and ((not is_python2 and isinstance(re, bytes)) or not re.match('^[0-9a-fA-F]*$', tx)):
return binascii.unhexlify(sign(binascii.hexlify(tx), i, priv))
if len(priv) <= 33:
priv = binascii.hexlify(priv)
pub = privkey_to_pubkey(priv)
address = pubkey_to_address(pub)
wscript = mk_pubkey_script(address) if not script else script
stripped_script = segwit_strip_script_separator(wscript, separator_index)
signing_tx = segwit_signature_form(tx, i, stripped_script, amount, hashcode=hashcode)
rawsig = ecdsa_raw_sign(hashlib.sha256(hashlib.sha256(binascii.unhexlify(signing_tx)).digest()).hexdigest(), priv)
sig = der_encode_sig(*rawsig)+encode(hashcode, 16, 2)
txobj['ins'][i]['txinwitness'] = [sig, pub if not script else script]
return serialize(txobj)
def finishcallback(self, coinjointx):
if coinjointx.all_responded:
#now sign it ourselves
tx = btc.serialize(coinjointx.latest_tx)
for index, ins in enumerate(coinjointx.latest_tx['ins']):
utxo = ins['outpoint']['hash'] + ':' + str(ins['outpoint']['index'])
if utxo != self.taker.auth_utxo:
continue
addr = coinjointx.input_utxos[utxo]['address']
tx = btc.sign(tx, index, coinjointx.wallet.get_key_from_addr(addr))
print 'unsigned tx = \n\n' + tx + '\n'
debug('created unsigned tx, ending')
self.taker.msgchan.shutdown()
return
self.ignored_makers += coinjointx.nonrespondants
debug('recreating the tx, ignored_makers=' + str(self.ignored_makers))
self.create_tx()
def apply_segwit_multisignatures(tx,
i,
witness_program,
signatures,
dummy=True,
nested=False):
o = [""] + signatures + [witness_program
] if dummy else signatures + [witness_program]
txobj = deserialize(tx)
txobj['ins'][i]['txinwitness'] = o
if nested:
redeem_script = hashlib.sha256(
binascii.unhexlify(witness_program)).hexdigest()
length = len(redeem_script) // 2
redeem_script = serialize_script([length + 2, None, redeem_script])
txobj["ins"][i]["script"] = redeem_script
return serialize(txobj)
def test_serialization_roundtrip2():
#Data extracted from:
#https://github.com/bitcoin/bitcoin/blob/master/src/test/data/tx_valid.json
#These are a variety of rather strange edge case transactions, which are
#still valid.
#Note that of course this is only a serialization, not validity test, so
#only currently of very limited significance
with open("test/tx_valid.json", "r") as f:
json_data = f.read()
valid_txs = json.loads(json_data)
for j in valid_txs:
#ignore comment entries
if len(j) < 2:
continue
print j
deserialized = btc.deserialize(str(j[0]))
print deserialized
assert j[0] == btc.serialize(deserialized)
def test_serialization_roundtrip2():
#Data extracted from:
#https://github.com/bitcoin/bitcoin/blob/master/src/test/data/tx_valid.json
#These are a variety of rather strange edge case transactions, which are
#still valid.
#Note that of course this is only a serialization, not validity test, so
#only currently of very limited significance
with open("test/tx_valid.json", "r") as f:
json_data = f.read()
valid_txs = json.loads(json_data)
for j in valid_txs:
#ignore comment entries
if len(j) < 2:
continue
print j
deserialized = btc.deserialize(str(j[0]))
print deserialized
assert j[0] == btc.serialize(deserialized)
def atomic(peer_pub, wallet, to, send, receive, secret_hash):
tx1 = mk_spend(wallet, to, send) #puts your money into the channel.
tx = b.deserialize(tx1)
script = "6352" + serialize(peer_pub) + serialize(
wallet["pub"]) + "52af67aa" + serialize(
secret_hash) + "87" + serialize(peer_pub) + "ad68"
print("script: " + str(script))
tx['outs'][0]['script'] = script
tx = b.serialize(tx)
txd = txid(tx)
txd = {
'output': (txd + ':1'),
'block_height': None,
'value': send,
'address': wallet['address']
}
refund_tx = mk_spend_txids(wallet, wallet["address"], send - fee, [txd])
return {"refund": refund_tx, "channel": tx, "script": script}
def finishcallback(self, coinjointx):
if coinjointx.all_responded:
#now sign it ourselves
tx = btc.serialize(coinjointx.latest_tx)
for index, ins in enumerate(coinjointx.latest_tx['ins']):
utxo = ins['outpoint']['hash'] + ':' + str(
ins['outpoint']['index'])
if utxo != self.taker.auth_utxo:
continue
addr = coinjointx.input_utxos[utxo]['address']
tx = btc.sign(tx, index,
coinjointx.wallet.get_key_from_addr(addr))
print 'unsigned tx = \n\n' + tx + '\n'
debug('created unsigned tx, ending')
self.taker.msgchan.shutdown()
return
self.ignored_makers += coinjointx.nonrespondants
debug('recreating the tx, ignored_makers=' + str(self.ignored_makers))
self.create_tx()
def apply_multisignatures(*args):
# tx,i,script,sigs OR tx,i,script,sig1,sig2...,sig[n]
tx, i, script = args[0], int(args[1]), args[2]
sigs = args[3] if isinstance(args[3], list) else list(args[3:])
if isinstance(script, str) and re.match('^[0-9a-fA-F]*$', script):
script = binascii.unhexlify(script)
sigs = [binascii.unhexlify(x) if x[:2] == '30' else x for x in sigs]
if isinstance(tx, str) and re.match('^[0-9a-fA-F]*$', tx):
signed_tx = apply_multisignatures(binascii.unhexlify(tx), i, script, sigs)
return binascii.hexlify(signed_tx)
# Not pushing empty elements on the top of the stack if passing no
# script (in case of bare multisig inputs there is no script)
script_blob = [] if script.__len__() == 0 else [script]
txobj = deserialize(tx)
txobj["ins"][i]["script"] = serialize_script([None]+sigs+script_blob)
return serialize(txobj)
def tx_to_hex(tx):
"""
Convert a bitcoin-given transaction into its hex string.
Does NOT work on coinbase transactions.
"""
tx_ins = []
tx_outs = []
for inp in tx['vin']:
next_inp = {
"outpoint": {
"index": int(inp['vout']),
"hash": str(inp['txid'])
}
}
if 'sequence' in inp:
next_inp['sequence'] = int(inp['sequence'])
else:
next_inp['sequence'] = pybitcoin.UINT_MAX
if 'scriptSig' in inp:
next_inp['script'] = str(inp['scriptSig']['hex'])
else:
next_inp['script'] = ""
tx_ins.append(next_inp)
for out in tx['vout']:
next_out = {
'value': int(round(Decimal(out['value']) * Decimal(10**8))),
'script': str(out['scriptPubKey']['hex'])
}
tx_outs.append(next_out)
tx_fields = {
"locktime": int(tx['locktime']),
"version": int(tx['version']),
"ins": tx_ins,
"outs": tx_outs
}
tx_serialized = bitcoin.serialize(tx_fields)
return str(tx_serialized)
def tx_to_hex( tx ):
"""
Convert a bitcoin-given transaction into its hex string.
Does NOT work on coinbase transactions.
"""
tx_ins = []
tx_outs = []
for inp in tx['vin']:
next_inp = {
"outpoint": {
"index": int(inp['vout']),
"hash": str(inp['txid'])
}
}
if 'sequence' in inp:
next_inp['sequence'] = int(inp['sequence'])
else:
next_inp['sequence'] = pybitcoin.UINT_MAX
if 'scriptSig' in inp:
next_inp['script'] = str(inp['scriptSig']['hex'])
else:
next_inp['script'] = ""
tx_ins.append(next_inp)
for out in tx['vout']:
next_out = {
'value': int(round(Decimal(out['value']) * Decimal(10**8))),
'script': str(out['scriptPubKey']['hex'])
}
tx_outs.append(next_out)
tx_fields = {
"locktime": int(tx['locktime']),
"version": int(tx['version']),
"ins": tx_ins,
"outs": tx_outs
}
tx_serialized = bitcoin.serialize( tx_fields )
return str(tx_serialized)
def test_native_P2WPKH_SIGHASH_ALL(self):
tx = TEST_CASES[0]
deserialized = deserialize(tx['unsigned'])
serialized = serialize(deserialized)
self.assertEqual(serialized, tx['unsigned'])
self.assertEqual(deserialized['locktime'], tx['locktime'])
ins = self.get_pybtc_vins(tx)
outs = self.get_pybtc_outs(tx)
generated_tx = mktx(ins, outs, locktime=tx['locktime'])
stripped_tx = strip_witness_data(generated_tx)
self.assertEqual(stripped_tx, serialized)
partially_signed = p2pk_sign(
stripped_tx, 0,
self.append_compressed_flag_to_privkey(tx['ins'][0]['privkey']))
signed = segwit_sign(
partially_signed, 1,
self.append_compressed_flag_to_privkey(tx['ins'][1]['privkey']),
tx['ins'][1]['amount'] * 10**8)
self.assertEqual(signed, tx['signed'])
print('[Native P2WPKH] SIGHASH_ALL OK')
def apply_multisignatures(*args):
# tx,i,script,sigs OR tx,i,script,sig1,sig2...,sig[n]
tx, i, script = args[0], int(args[1]), args[2]
sigs = args[3] if isinstance(args[3], list) else list(args[3:])
if isinstance(script, str) and re.match('^[0-9a-fA-F]*$', script):
script = binascii.unhexlify(script)
sigs = [binascii.unhexlify(x) if x[:2] == '30' else x for x in sigs]
if isinstance(tx, str) and re.match('^[0-9a-fA-F]*$', tx):
signed_tx = apply_multisignatures(binascii.unhexlify(tx), i, script,
sigs)
return binascii.hexlify(signed_tx)
# Not pushing empty elements on the top of the stack if passing no
# script (in case of bare multisig inputs there is no script)
script_blob = [] if script.__len__() == 0 else [script]
txobj = deserialize(tx)
txobj["ins"][i]["script"] = serialize_script([None] + sigs + script_blob)
return serialize(txobj)
def test_native_P2WPKH_SIGHASH_ALL(self):
tx = TEST_CASES[0]
deserialized = deserialize(tx['unsigned'])
serialized = serialize(deserialized)
self.assertEqual(serialized, tx['unsigned'])
self.assertEqual(deserialized['locktime'], tx['locktime'])
ins = self.get_pybtc_vins(tx)
outs = self.get_pybtc_outs(tx)
generated_tx = mktx(ins, outs, locktime=tx['locktime'])
stripped_tx = strip_witness_data(generated_tx)
self.assertEqual(stripped_tx, serialized)
partially_signed = p2pk_sign(stripped_tx,
0,
self.append_compressed_flag_to_privkey(tx['ins'][0]['privkey']))
signed = segwit_sign(partially_signed,
1,
self.append_compressed_flag_to_privkey(tx['ins'][1]['privkey']),
tx['ins'][1]['amount'] * 10**8)
self.assertEqual(signed, tx['signed'])
print('[Native P2WPKH] SIGHASH_ALL OK')
def bech32_sign(tx, i, priv, amount, script=None, hashcode=SIGHASH_ALL):
from bitcoin import deserialize, segwit_signature_form, ecdsa_raw_sign, der_encode_sig, serialize, compress
i = int(i)
txobj = tx if isinstance(tx, dict) else deserialize(tx)
if len(priv) <= 33:
priv = binascii.hexlify(priv)
pub = compress(privkey_to_pubkey(priv))
script = script or ('76a914' + hash160(binascii.unhexlify(pub)) + '88ac')
signing_tx = segwit_signature_form(tx,
i,
script,
amount,
hashcode=hashcode)
rawsig = ecdsa_raw_sign(
hashlib.sha256(
hashlib.sha256(
binascii.unhexlify(signing_tx)).digest()).hexdigest(), priv)
sig = der_encode_sig(*rawsig) + encode(hashcode, 16, 2)
txobj['ins'][i]['txinwitness'] = [sig, pub]
return serialize(txobj)
def sign( self, privkey ):
if( self.tx is None or self.redeemScript is None ):
raise RuntimeError( "You have not entered in a tx to sign" )
try:
pub = bitcoin.privtopub( privkey )
if pub not in self.pubs:
pub = bitcoin.encode_pubkey( pub, 'hex_compressed' )
if pub not in self.pubs:
raise ValueError( "Key doesn't match any public keys in redeemscript" )
stx = bitcoin.serialize( self.tx )
sigs = self.extract_sigs( self.tx )
sigs.append( bitcoin.multisign( stx, 0, self.redeemScript, privkey ) )
sigs = self.reorder_sigs( sigs )
stx = bitcoin.apply_multisignatures( stx, 0, self.redeemScript, sigs )
return stx, ( len(sigs) >= self.neededSigs )
except ValueError as e:
raise RuntimeError( "Key Error", str( e ) )
except Exception as e:
raise RuntimeError( "Unexpected Error", "Unexpected error formating key: " + str( e ) )
def push(self):
tx = btc.serialize(self.latest_tx)
log.debug('\n' + tx)
self.txid = btc.txhash(tx)
log.info('txid = ' + self.txid)
tx_broadcast = jm_single().config.get('POLICY', 'tx_broadcast')
if tx_broadcast == 'self':
pushed = jm_single().bc_interface.pushtx(tx)
elif tx_broadcast in ['random-peer', 'not-self']:
n = len(self.active_orders)
if tx_broadcast == 'random-peer':
i = random.randrange(n + 1)
else:
i = random.randrange(n)
if i == n:
pushed = jm_single().bc_interface.pushtx(tx)
else:
self.msgchan.push_tx(self.active_orders.keys()[i], tx)
pushed = True
elif tx_broadcast == 'random-maker':
crow = self.db.execute(
'SELECT DISTINCT counterparty FROM orderbook ORDER BY ' +
'RANDOM() LIMIT 1;'
).fetchone()
counterparty = crow['counterparty']
log.info('pushing tx to ' + counterparty)
self.msgchan.push_tx(counterparty, tx)
pushed = True
elif tx_broadcast == 'tor':
socks5_host = jm_single().config.get("MESSAGING",
"socks5_host").split(",")[0]
socks5_port = int(jm_single().config.get("MESSAGING",
"socks5_port").split(",")[0])
pushed = tor_broadcast_tx(tx, (socks5_host, socks5_port),
testnet=(get_network() == "testnet"))
if not pushed:
log.error('unable to pushtx')
return pushed
def push(self):
tx = btc.serialize(self.latest_tx)
log.debug('\n' + tx)
self.txid = btc.txhash(tx)
log.info('txid = ' + self.txid)
tx_broadcast = jm_single().config.get('POLICY', 'tx_broadcast')
if tx_broadcast == 'self':
pushed = jm_single().bc_interface.pushtx(tx)
elif tx_broadcast in ['random-peer', 'not-self']:
n = len(self.active_orders)
if tx_broadcast == 'random-peer':
i = random.randrange(n + 1)
else:
i = random.randrange(n)
if i == n:
pushed = jm_single().bc_interface.pushtx(tx)
else:
self.msgchan.push_tx(self.active_orders.keys()[i], tx)
pushed = True
elif tx_broadcast == 'random-maker':
crow = self.db.execute(
'SELECT DISTINCT counterparty FROM orderbook ORDER BY ' +
'RANDOM() LIMIT 1;').fetchone()
counterparty = crow['counterparty']
log.info('pushing tx to ' + counterparty)
self.msgchan.push_tx(counterparty, tx)
pushed = True
elif tx_broadcast == 'tor':
socks5_host = jm_single().config.get("MESSAGING",
"socks5_host").split(",")[0]
socks5_port = int(jm_single().config.get(
"MESSAGING", "socks5_port").split(",")[0])
pushed = tor_broadcast_tx(tx, (socks5_host, socks5_port),
testnet=(get_network() == "testnet"))
if not pushed:
log.error('unable to pushtx')
return pushed
def tx_sign_singlesig(tx, idx, private_key_info, hashcode=bitcoin.SIGHASH_ALL):
"""
Sign a p2pkh input
Return the signed transaction
TODO: move to virtualchain
NOTE: implemented here instead of bitcoin, since bitcoin.sign() can cause a stack overflow
while converting the private key to a public key.
"""
pk = virtualchain.BitcoinPrivateKey(str(private_key_info))
pubk = pk.public_key()
pub = pubk.to_hex()
addr = pubk.address()
script = virtualchain.make_payment_script(addr)
sig = tx_make_input_signature(tx, idx, script, private_key_info, hashcode)
txobj = bitcoin.deserialize(str(tx))
txobj['ins'][idx]['script'] = bitcoin.serialize_script([sig, pub])
return bitcoin.serialize(txobj)
def sign(tx, i, priv, t="default", script="", hashcode=SIGHASH_ALL):
i = int(i)
#if (not is_python2 and isinstance(re, bytes)) or not re.match('^[0-9a-fA-F]*$', tx):
if not re.match('^[0-9a-fA-F]*$', tx):
return binascii.unhexlify(custom_sign(safe_hexlify(tx), i, priv, hashcode))
if len(priv) <= 33:
priv = b.safe_hexlify(priv)
pub = b.privkey_to_pubkey(priv)
address = b.pubkey_to_address(pub)
if t not in ["atomic_1", "atomic_2"]:
script=b.mk_pubkey_script(address)
if script=="": error()
signing_tx = b.signature_form(tx, i, script, hashcode)#mk_pubkey_scrip needs to be our custom scriptn
sig = b.ecdsa_tx_sign(signing_tx, priv, hashcode)
txobj = b.deserialize(tx)
if t=="atomic_1":
txobj["ins"][i]["script"] = b.serialize_script([sig])
if t=="atomic_2":
old_sig = txobj["ins"][i]["script"]
txobj["ins"][i]["script"] = b.serialize_script([old_sig, sig, 1])
else:
txobj["ins"][i]["script"] = b.serialize_script([sig, pub])
return b.serialize(txobj)
def test_serialization_roundtrip(tx_type, tx_id, tx_hex):
assert tx_hex == btc.serialize(btc.deserialize(tx_hex))
def test_P2SH_P2WSH_ALL_SIGHASH(self):
tx = TEST_CASES[3]
VIN_AMOUNT = int(9.87654321 * 10**8)
deserialized = deserialize(tx['unsigned'])
serialized = serialize(deserialized)
self.assertEqual(serialized, tx['unsigned'])
self.assertEqual(deserialized['locktime'], tx['locktime'])
ins = self.get_pybtc_vins(tx)
outs = self.get_pybtc_outs(tx)
generated_tx = mktx(ins, outs)
stripped_tx = strip_witness_data(generated_tx)
self.assertEqual(stripped_tx, serialized)
priv0 = self.append_compressed_flag_to_privkey(tx['ins'][0]['privkeys'][0])
priv1 = self.append_compressed_flag_to_privkey(tx['ins'][0]['privkeys'][1])
priv2 = self.append_compressed_flag_to_privkey(tx['ins'][0]['privkeys'][2])
priv3 = self.append_compressed_flag_to_privkey(tx['ins'][0]['privkeys'][3])
priv4 = self.append_compressed_flag_to_privkey(tx['ins'][0]['privkeys'][4])
priv5 = self.append_compressed_flag_to_privkey(tx['ins'][0]['privkeys'][5])
witness_script = mk_multisig_script(privtopub(priv0),
privtopub(priv1),
privtopub(priv2),
privtopub(priv3),
privtopub(priv4),
privtopub(priv5),
6)
self.assertEqual(witness_script, tx['ins'][0]['witness_script'])
sign0 = segwit_multisign(generated_tx,
0,
witness_script,
priv0,
VIN_AMOUNT,
hashcode=SIGHASH_ALL)
sign1 = segwit_multisign(generated_tx,
0,
witness_script,
priv1,
VIN_AMOUNT,
hashcode=SIGHASH_NONE)
sign2 = segwit_multisign(generated_tx,
0,
witness_script,
priv2,
VIN_AMOUNT,
hashcode=SIGHASH_SINGLE)
sign3 = segwit_multisign(generated_tx,
0,
witness_script,
priv3,
VIN_AMOUNT,
hashcode=SIGHASH_ALL|SIGHASH_ANYONECANPAY)
sign4 = segwit_multisign(generated_tx,
0,
witness_script,
priv4,
VIN_AMOUNT,
hashcode=SIGHASH_NONE|SIGHASH_ANYONECANPAY)
sign5 = segwit_multisign(generated_tx,
0,
witness_script,
priv5,
VIN_AMOUNT,
hashcode=SIGHASH_SINGLE|SIGHASH_ANYONECANPAY)
signed = apply_segwit_multisignatures(stripped_tx, 0, witness_script,
[sign0, sign1, sign2, sign3, sign4, sign5],
nested=True)
self.assertEqual(signed, tx['signed'])
print('[P2WSH 6-of-6 multisig NESTED in P2SH] SIGHASH_SINGLE\SIGHASH_ALL\SIGHASH_NONE & ANYONECANPAY')
