def test_exercise_5(self):
prev_tx_1 = bytes.fromhex(
'11d05ce707c1120248370d1cbf5561d22c4f83aeba0436792c82e0bd57fe2a2f')
prev_index_1 = 1
prev_tx_2 = bytes.fromhex(
'51f61f77bd061b9a0da60d4bedaaf1b1fad0c11e65fdc744797ee22d20b03d15')
prev_index_2 = 1
target_address = 'mwJn1YPMq7y5F8J3LkC5Hxg9PHyZ5K4cFv'
target_amount = 0.0429
secret = 8675309
priv = PrivateKey(secret=secret)
tx_ins = []
tx_ins.append(TxIn(prev_tx_1, prev_index_1, Script([]), 0xffffffff))
tx_ins.append(TxIn(prev_tx_2, prev_index_2, Script([]), 0xffffffff))
tx_outs = []
h160 = decode_base58(target_address)
script_pubkey = p2pkh_script(h160)
target_satoshis = int(target_amount * 100000000)
tx_outs.append(TxOut(target_satoshis, script_pubkey))
tx_obj = Tx(1, tx_ins, tx_outs, 0, testnet=True)
self.assertTrue(tx_obj.sign_input(0, priv))
self.assertTrue(tx_obj.sign_input(1, priv))
self.assertTrue(tx_obj.verify())
want = '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'
self.assertEqual(tx_obj.serialize().hex(), want)
def __init__(self, serialized_psbt): self.role = "Finalizer" self.psbt = PSBT.parse(BytesIO(serialized_psbt)) for i in self.psbt.maps["inputs"]: if not self._check_for_sig(i): continue if IN_SIGHASH_TYPE not in i.keys(): continue if self._is_witness_input(i): if IN_WITNESS_SCRIPT not in i.keys(): continue # Step 3b: Then create scriptWitness new_scriptWitness = self._make_multisig_script(inp=i, witness=True) # Complete scriptWitness by adding the number of witness items to the beginning new_scriptWitness.insert(0, len(new_scriptWitness)) # Add key-type PSBT_IN_FINAL_SCRIPTWITNESS to PSBT with the finalized scriptWitness as its value i[IN_FINAL_SCRIPTWITNESS] = Script(new_scriptWitness).serialize() # Add key-type PSBT_IN_FINAL_SCRIPTSIG to PSBT with the finalized scriptSig as its value # For witness inputs, this is the redeemScript preceded by its length i[IN_FINAL_SCRIPTSIG] = encode_varint(len(i[IN_REDEEM_SCRIPT])) + i[IN_REDEEM_SCRIPT] elif IN_REDEEM_SCRIPT in i.keys(): # ASSUME MULTISIG i[IN_FINAL_SCRIPTSIG] = Script(self._make_multisig_script(i)).serialize() else: # ASSUME P2PKH found_sec = False for k in i.keys(): if k[:1] == IN_PARTIAL_SIG: # WTF IS THIS LOGIC??? if found_sec: continue sec = k[1:] sig = i[k] found_sec = True i[IN_FINAL_SCRIPTSIG] = Script([sig, sec]).serialize() self._clear_keyvalues(i)
def koopa_response(player: example.Wrap1, koopa: example.Wrap1, x, y):
if koopa.getState() == 'hide':
koopa.killScripts()
if player.getState() == 'jump' and player.vy < 0:
player.vy = 300
#koopa.move(-10 * x, 0, 0)
left = 0 if (player.x < koopa.x) else 1
s = Script()
s.add_action(
act.SetState(state='walk2',
entity_id=koopa.id,
args={'left': left}))
koopa.play(s)
elif koopa.getState() == 'walk2':
# hit player only if going towards player
dx = player.x - koopa.x
if (dx > 0 and not koopa.flipx) or (dx < 0 and koopa.flipx):
player_hit_by_enemy(player)
else:
if player.getState() == "jump" and player.vy < 0:
print('fokkami')
player.vy = 300
s = Script()
s.add_action(act.SetState(state='hide', entity_id=koopa.id))
s.add_action(act.Delay(20))
s.add_action(
act.Blink(duration=2, blink_duration=0.2, entity_id=koopa.id))
s.add_action(act.SetState(state='walk', entity_id=koopa.id))
koopa.play(s)
else:
player_hit_by_enemy(player)
def hash_to_sign(self, input_index, sighash):
'''Returns the integer representation of the hash that needs to get
signed for index input_index'''
# create a new transaction that's a clone of self
# use self.__class__(self.version, self.tx_ins, self.tx_outs, self.locktime)
alternate_tx = self.__class__(self.version, self.tx_ins, self.tx_outs,
self.locktime)
# iterate through inputs
for tx_in in alternate_tx.tx_ins:
# for each input, create new TxIn with blanked out script_sig
# use Script(b'')
tx_in.script_sig = Script(b'')
# grab the input at input_index
tx_in = alternate_tx.tx_ins[input_index]
# replace input_index input with scriptPubKey from that input
# use Script(tx_in.script_pubkey())
tx_in.script_sig = Script(tx_in.script_pubkey())
# grab the serialization
serialization = alternate_tx.serialize()
# add the sighash int in 4 bytes, little endian
serialization += int_to_little_endian(sighash, 4)
# get the double_sha256 of the tx serialization
ds256 = double_sha256(serialization)
# convert this to a big-endian integer using int.from_bytes(x, 'big')
return int.from_bytes(ds256, 'big')
def test_example_6(self):
tx_ins = []
prev_tx = bytes.fromhex(
'0d6fe5213c0b3291f208cba8bfb59b7476dffacc4e5cb66f6eb20a080843a299')
prev_index = 13
tx_ins.append(TxIn(prev_tx, prev_index, Script([]), 0xffffffff))
tx_outs = []
change_amount = int(0.33 * 100000000)
change_h160 = decode_base58('mzx5YhAH9kNHtcN481u6WkjeHjYtVeKVh2')
change_script = p2pkh_script(change_h160)
tx_outs.append(TxOut(amount=change_amount,
script_pubkey=change_script))
target_amount = int(0.1 * 100000000)
target_h160 = decode_base58('mnrVtF8DWjMu839VW3rBfgYaAfKk8983Xf')
target_script = p2pkh_script(target_h160)
tx_outs.append(TxOut(amount=target_amount,
script_pubkey=target_script))
transaction = Tx(1, tx_ins, tx_outs, 0, testnet=True)
z = transaction.sig_hash(0)
private_key = PrivateKey(secret=8675309)
der = private_key.sign(z).der()
sig = der + SIGHASH_ALL.to_bytes(1, 'big')
sec = private_key.point.sec()
transaction.tx_ins[0].script_sig = Script([sig, sec])
want = '010000000199a24308080ab26e6fb65c4eccfadf76749bb5bfa8cb08f291320b3c21e56f0d0d0000006b4830450221008ed46aa2cf12d6d81065bfabe903670165b538f65ee9a3385e6327d80c66d3b502203124f804410527497329ec4715e18558082d489b218677bd029e7fa306a72236012103935581e52c354cd2f484fe8ed83af7a3097005b2f9c60bff71d35bd795f54b67ffffffff02408af701000000001976a914d52ad7ca9b3d096a38e752c2018e6fbc40cdf26f88ac80969800000000001976a914507b27411ccf7f16f10297de6cef3f291623eddf88ac00000000'
self.assertEqual(transaction.serialize().hex(), want)
def process_toggle_block_mention(self, minfo, keyword):
log.debug(u'process_toggle_block_mention called with keyword: {}'.format(keyword.encode('utf8')))
user = session.query(Follower).filter_by(uniqueid = minfo['id'])
try: user = user.one()
except NoResultFound: user = session.query(Follower).filter_by(mention_id = minfo['screen_name'])
try: user = user.one()
except: user = Follower(minfo['screen_name'], minfo['name'])
SCRIPT_STOP = u'알았다요. 이제 먼저 말 걸지 않겠다요.. '
SCRIPT_RESUME = u'헤헤 알았다요! 이제 닉시코가 먼저 말을 걸 수도 있다요!'
if keyword.split()[1] in (u'중지', u'그만', u'중단'): # if suspend
user.is_blocked = 1
log.info(u'사용자 블록 전환: '.format(minfo['screen_name']))
script = Script(SCRIPT_STOP)
script.mention(minfo['screen_name'])
self.do_tweet(script, minfo['id'])
else: # if resume
user.is_blocked = 0
log.info(u'사용자 블록 해제: '.format(minfo['screen_name']))
script = Script(SCRIPT_RESUME)
script.mention(minfo['screen_name'])
self.do_tweet(script, minfo['id'])
session.add(user)
session.commit()
log.debug('toggle_block_mention done')
def test_example_1(self):
z = 0x7c076ff316692a3d7eb3c3bb0f8b1488cf72e1afcd929e29307032997a838a3d
sec = bytes.fromhex('04887387e452b8eacc4acfde10d9aaf7f6d9a0f975aabb10d006e4da568744d06c61de6d95231cd89026e286df3b6ae4a894a3378e393e93a0f45b666329a0ae34')
sig = bytes.fromhex('3045022000eff69ef2b1bd93a66ed5219add4fb51e11a840f404876325a1e8ffe0529a2c022100c7207fee197d27c618aea621406f6bf5ef6fca38681d82b2f06fddbdce6feab601')
script_pubkey = Script([sec, 0xac])
script_sig = Script([sig])
combined_script = script_sig + script_pubkey
self.assertTrue(combined_script.evaluate(z))
def build_combo(fn, config, platform):
print('building {0} {1} {2}...'.format(fn.__name__, config, platform))
bat = Script(True, fn.__name__, config, platform) #build script
fn(bat)
bat.run()
print('installing {0} {1} {2}...'.format(fn.__name__, config, platform))
bat = Script(False, fn.__name__, config, platform) #istallation script
fn(bat)
bat.run()
def finalize_p2wpkh(self, sig, sec, redeem_script=None):
'''Puts together the ScriptSig and Witness for a p2wpkh input so the input verifies.'''
# if the RedeemScript is given, the ScriptSig is a single element Script of its raw serialization
if redeem_script:
self.script_sig = Script([redeem_script.raw_serialize()])
# else the ScriptSig should be empty
else:
self.script_sig = Script()
# the Witness for p2wpkh is [sig, sec]
self.witness = Witness([sig, sec])
def sig_hash(self, indice_input, tipo_hash):
'''Devuelve la representación entera del hash que necesitas firmar
para el índice indice_input'''
# crea una nueva serie de tx_ins (alt_tx_ins)
alt_tx_ins = []
# itera sobre self.tx_ins
for tx_in in self.tx_ins:
# crea un nuevo TxIn que tenga un script_sig (b'') en blanco y añáde a alt_tx_ins
alt_tx_ins.append(
TxIn(
tx_previa=tx_in.tx_previa,
indice_previo=tx_in.indice_previo,
script_sig=Script([]),
sequence=tx_in.sequence,
))
# obtén el input en el indice_input
input_firmante = alt_tx_ins[indice_input]
# obtén el script_pubkey del input
script_pubkey = input_firmante.script_pubkey(self.testnet)
# el script_sig del input_firmante debería ser script_pubkey
input_firmante.script_sig = script_pubkey
# crea una transacción alternativa con las tx_ins modificadas
alt_tx = self.__class__(versión=self.versión,
tx_ins=alt_tx_ins,
tx_outs=self.tx_outs,
locktime=self.locktime)
# añade el tipo_hash entero 4 bytes, little endian
res = alt_tx.serializar() + int_a_little_endian(tipo_hash, 4)
# obtén el doble_sha256 de la serialización de la tx
s256 = doble_sha256(res)
# convierte esto a un entero big-endian usando int.from_bytes(x, 'big')
return int.from_bytes(s256, 'big')
def prueba_firmar_input(self):
clave_privada = ClavePrivada(secreto=8675309)
tx_ins = []
tx_previa = bytes.fromhex(
'0025bc3c0fa8b7eb55b9437fdbd016870d18e0df0ace7bc9864efc38414147c8')
tx_ins.append(
TxIn(
tx_previa=tx_previa,
indice_previo=0,
script_sig=Script([]),
sequence=0xffffffff,
))
tx_outs = []
h160 = decodificar_base58('mzx5YhAH9kNHtcN481u6WkjeHjYtVeKVh2')
tx_outs.append(
TxOut(cantidad=int(0.99 * 100000000),
script_pubkey=script_p2pkh(h160)))
h160 = decodificar_base58('mnrVtF8DWjMu839VW3rBfgYaAfKk8983Xf')
tx_outs.append(
TxOut(cantidad=int(0.1 * 100000000),
script_pubkey=script_p2pkh(h160)))
tx = Tx(
versión=1,
tx_ins=tx_ins,
tx_outs=tx_outs,
locktime=0,
testnet=True,
)
self.assertTrue(tx.firmar_input(0, clave_privada, SIGHASH_ALL))
def sign_input(self, idx, private_key, sighash_type=SIGHASH_ALL):
'''Signs the input using the private key'''
# get the signature hash (z)
tx_in = self.tx_ins[idx]
script_pubkey = tx_in.script_pubkey(testnet=self.testnet)
if script_pubkey.is_p2wpkh_script():
z = self.sig_hash_bip143(idx)
elif script_pubkey.is_p2pkh_script():
z = self.sig_hash(idx, sighash_type=sighash_type)
#TODO p2sh-p2wpkh
elif script_pubkey.is_p2wsh_script():
#z = self.sig_hash_bip143(idx, witness_script=tx_in.witness)
raise NotImplementedError
else:
raise NotImplementedError
# get der signature of z from private key
der = private_key.sign(z).der()
# append the sighash_type to der (use sighash_type.to_bytes(1, 'big'))
sig = der + sighash_type.to_bytes(1, 'big')
# calculate the sec
sec = private_key.point.sec()
# initialize a new script with [sig, sec] as the cmds
script_sig = Script([sig, sec])
# change input's script_sig to new script
if tx_in.segwit:
self.tx_ins[idx].witness = script_sig
else:
self.tx_ins[idx].script_sig = script_sig
# return whether sig is valid using self.verify_input
if self.verify_input(idx):
return script_sig
else:
return False
def sign_input(self, input_index, private_key):
# get the signature hash (z)
##
## Might need to provide logic to get sig_hash depending on whether it is segwit or not.
## The following right now is for not segwit
##
## If spending a segwit utxo then --will need to look at the form of the utxo script pubkey
## z = self.sig_hash_bip143
## else
z = self.sig_hash(input_index)
# get der signature of z from private key
der = private_key.sign(z).der()
# append the SIGHASH_ALL to der (use SIGHASH_ALL.to_bytes(1, 'big'))
sig = der + SIGHASH_ALL.to_bytes(1, 'big')
# calculate the sec
sec = private_key.point.sec()
# initialize a new script with [sig, sec] as the cmds
script = Script([sig, sec])
print("Script_Sig from within sign_input: ", script)
# change input's script_sig to new script
self.tx_ins[input_index].script_sig = script
# return whether sig is valid using self.verify_input
# verify_input will return True if the signautre is valid
verify = self.verify_input(input_index)
print(verify)
return verify
def new_commitment_tx(node, current_channel, cost, secret_hash):
remote_peer = current_channel.peer
# Create input using the output from the funding tx
tx_in = TxIn(bytes.fromhex(current_channel.funding_tx.id()), 0)
# Create 3 outputs. 1 to nodeA and 1 to nodeB and 1 to an HTLC script
script_1 = p2pkh_script(decode_base58(node.address))
tx_out_1 = TxOut(amount=current_channel.local_amt - cost,
script_pubkey=script_1)
script_2 = p2pkh_script(decode_base58(remote_peer.btc_addr.decode()))
tx_out_2 = TxOut(amount=current_channel.remote_amt, script_pubkey=script_2)
#script_3 HTLC
script_3 = Script([
99, 168, secret_hash, 136, 118, 169,
hash160(remote_peer.public_key.sec()), 103,
encode_varint(1000), 177, 117, 118, 169,
hash160(node.public_key.sec()), 104, 136, 172
])
tx_out_3 = TxOut(amount=cost, script_pubkey=script_3)
# Construct the commitment tx object
commitment_tx = Tx(1, [tx_in], [tx_out_1, tx_out_2, tx_out_3], 0, True)
#sign it
commitment_tx.tx_ins[0].script_sig = get_script_sig(
commitment_tx, node.private_key)
return commitment_tx
def sig_hash(self, input_index, redeem_script=None):
alt_tx_ins = []
for tx_in in self.tx_ins:
alt_tx_ins.append(
TxIn(
prev_tx=tx_in.prev_tx,
prev_index=tx_in.prev_index,
script_sig=Script([]),
sequence=tx_in.sequence,
))
signing_input = alt_tx_ins[input_index]
if redeem_script:
print(redeem_script)
signing_input.script_sig = redeem_script
else:
signing_input.script_sig = signing_input.script_pubkey(
self.testnet)
for i in alt_tx_ins:
print(i.script_sig)
alt_tx = self.__class__(version=self.version,
tx_ins=alt_tx_ins,
tx_outs=self.tx_outs,
locktime=self.locktime)
result = alt_tx.serialize() + int_to_little_endian(SIGHASH_ALL, 4)
h256 = hash256(result)
return int.from_bytes(h256, 'big')
def test_create_changer_from_pos(self):
script_str = r'''
func1(
param1,
param2,
func32(adfd),
func3(1,2,3,4,
"abcdefg(fsdsd)"),
func39(1,2,3,4,
"abc'defg(fsdsd)"),
[1, 2, 3, 4],
func4(1,2,3,4,
"abc'd\"ef'g(fsdsd)"),
")))))))",
'((((((')
func2(1,2,3)'''
script = Script(script_str)
manager = ParameterChangerManager(script)
changer = manager._create_changer_from_pos(0)
params = changer.get_parameters()
self.assertEqual(params[0], 'param1')
self.assertEqual(params[1], 'param2')
self.assertEqual(params[2], 'func32(adfd)')
self.assertEqual(params[3],
'func3(1,2,3,4,\n "abcdefg(fsdsd)")')
self.assertEqual(params[4],
'func39(1,2,3,4,\n "abc\'defg(fsdsd)")')
self.assertEqual(params[5], '[1, 2, 3, 4]')
self.assertEqual(params[6],
'func4(1,2,3,4,\n "abc\'d\\"ef\'g(fsdsd)")')
self.assertEqual(params[7], '")))))))"')
self.assertEqual(params[8], '\'((((((\'')
def sign_input(self, input_index: int, private_key):
z = self.sig_hash(input_index)
der = private_key.sign(z).der()
sig = der+SIGHASH_ALL.to_bytes(1, "big")
sec = private_key.point.sec()
self.tx_ins[input_index].script_sig = Script([sig, sec])
return self.verify_input(input_index)
def __init__(self):
self.list_speaks = []
self.born_time = time.time()
self.attributes = {}
self.stop = False
self.user = User()
self.script = Script(self)
def build_transaction(transidsarr, transindexarr, pubeysarr, amountsarr,
privatekey):
tx_ins = buildinputs(transidsarr, transindexarr)
tx_outs = buildoutputs(pubkeysarr, amountsarr)
tx_obj = Tx(version=1,
tx_ins=tx_ins,
tx_outs=tx_outs,
locktime=0,
testnet=True)
hash_type = SIGHASH_ALL
z = tx_obj.sig_hash(0, hash_type)
pk = PrivateKey(secret=privatekey)
sighash = SIGHASH_ALL
z = tx_obj.sig_hash(0, sighash)
#print(z)
sig = pk.sign(z)
#print("r: " + str(sig.r))
#print("s: " + str(sig.s))
der = pk.sign(z).der()
sig = der + bytes([sighash])
sec = pk.point.sec()
tx_obj.tx_ins[0].script_sig = Script([sig, sec])
#print("serialized:")
#print(hexlify(Script([sig,sec]).serialize()))
#print("----------")
return hexlify(tx_obj.serialize())
def sign_input_multisig_1by1(self, input_index, private_key,privkey_index, redeem_script,n):
'''Signs the input using the private key
n: n signatures that can sign transaction.
private_key: must be a PrivateKey object.
privkey_index: is the index of the private key according to the order of the public keys.
'''
# get the signature hash (z)
z = self.sig_hash(input_index, redeem_script)
# get der signature of z from private key
cmds = self.tx_ins[input_index].script_sig.cmds
if len(cmds) == 0:
#We create an array full of 0s with a lentgth of n+1. n is the number of possible private keys that can
#sign the transaction. This way we can place the signatures in the right order. We get rid of the unnecesarry
#0s later.
print(f"cmds is empty. Creating new set of commands")
cmds = [0]*(n)
#we also need to append at the end the serialized redeem script:
cmds.append(redeem_script.serialize()[1:])
der = private_key.sign(z).der()
# append the SIGHASH_ALL to der (use SIGHASH_ALL.to_bytes(1, 'big'))
sig = der + SIGHASH_ALL.to_bytes(1, 'big')
#we add 1 to the index because of the OP_0 bug.
cmds[privkey_index] = sig
#commands.append(*redeem_script.cmds)
print(f"sign_input_multisig commands: {cmds}")
script_sig = Script(cmds)
#script_sig = cmds
# change input's script_sig to new script
self.tx_ins[input_index].script_sig = script_sig
# return whether sig is valid using self.verify_input
#return self.verify_input(input_index)
return True
def add_channel(local_node, remote_peer, input_tx_id, input_tx_index):
tx_in = TxIn(bytes.fromhex(input_tx_id), input_tx_index)
local_amount = tx_in.value()
remote_amount = 0
# Construct the output: amount, scriptPubKey = 2-of-2 Bare Multisig = Script([op_1, pubkey1, pubkey2, op_2, op_checkmultisig])
scriptPubKey = Script([
0x52,
local_node.public_key.sec(),
remote_peer.public_key.sec(), 0x52, 0xae
])
tx_out = TxOut(amount=local_amount, script_pubkey=scriptPubKey)
# Construct the transaction object
funding_tx = Tx(1, [tx_in], [tx_out], 0, True)
# Sign the input
funding_tx.sign_input(0, local_node.private_key)
#send channel request
new_channel = Channel(remote_peer, local_amount, remote_amount, funding_tx)
remote_peer.send(str.encode(new_channel.toJSON()))
return new_channel
def test_exercise_4(self):
prev_tx = bytes.fromhex(
'75a1c4bc671f55f626dda1074c7725991e6f68b8fcefcfca7b64405ca3b45f1c')
prev_index = 1
target_address = 'miKegze5FQNCnGw6PKyqUbYUeBa4x2hFeM'
target_amount = 0.01
change_address = 'mzx5YhAH9kNHtcN481u6WkjeHjYtVeKVh2'
change_amount = 0.009
secret = 8675309
priv = PrivateKey(secret=secret)
tx_ins = []
tx_ins.append(TxIn(prev_tx, prev_index, Script([]), 0xffffffff))
tx_outs = []
h160 = decode_base58(target_address)
script_pubkey = p2pkh_script(h160)
target_satoshis = int(target_amount * 100000000)
tx_outs.append(TxOut(target_satoshis, script_pubkey))
h160 = decode_base58(change_address)
script_pubkey = p2pkh_script(h160)
change_satoshis = int(change_amount * 100000000)
tx_outs.append(TxOut(change_satoshis, script_pubkey))
tx_obj = Tx(1, tx_ins, tx_outs, 0, testnet=True)
self.assertTrue(tx_obj.sign_input(0, priv))
self.assertTrue(tx_obj.verify())
want = '01000000011c5fb4a35c40647bcacfeffcb8686f1e9925774c07a1dd26f6551f67bcc4a175010000006b483045022100a08ebb92422b3599a2d2fcdaa11f8f807a66ccf33e7f4a9ff0a3c51f1b1ec5dd02205ed21dfede5925362b8d9833e908646c54be7ac6664e31650159e8f69b6ca539012103935581e52c354cd2f484fe8ed83af7a3097005b2f9c60bff71d35bd795f54b67ffffffff0240420f00000000001976a9141ec51b3654c1f1d0f4929d11a1f702937eaf50c888ac9fbb0d00000000001976a914d52ad7ca9b3d096a38e752c2018e6fbc40cdf26f88ac00000000'
self.assertEqual(tx_obj.serialize().hex(), want)
def test_sign_input(self):
private_key = PrivateKey(secret=8675309)
tx_ins = []
prev_tx = bytes.fromhex(
'0025bc3c0fa8b7eb55b9437fdbd016870d18e0df0ace7bc9864efc38414147c8')
tx_ins.append(
TxIn(
prev_tx=prev_tx,
prev_index=0,
script_sig=Script([]),
sequence=0xffffffff,
))
tx_outs = []
h160 = decode_base58('mzx5YhAH9kNHtcN481u6WkjeHjYtVeKVh2')
tx_outs.append(
TxOut(amount=int(0.99 * 100000000),
script_pubkey=p2pkh_script(h160)))
h160 = decode_base58('mnrVtF8DWjMu839VW3rBfgYaAfKk8983Xf')
tx_outs.append(
TxOut(amount=int(0.1 * 100000000),
script_pubkey=p2pkh_script(h160)))
tx = Tx(
version=1,
tx_ins=tx_ins,
tx_outs=tx_outs,
locktime=0,
testnet=True,
)
self.assertTrue(tx.sign_input(0, private_key, SIGHASH_ALL))
def clear(dir, start, end, mode):
aS = Script(dir)
if mode == "system":
aS.s.nTask()
else:
aS.s.nScript()
aS.s.allocm(1, 0, AnyType(16))
aS.s.clearm(0)
now = int(time() * 1e9)
iS = now + int(start * 1e9)
iE = now + int(end * 1e9)
aS.s.immevl(1, AnyType(iS))
aS.s.selfsc(1)
aS.s.savevl(1, 0, AnyType(0))
aS.s.immevl(1, AnyType(iE))
aS.s.selfsc(1)
aS.s.savevl(1, 0, AnyType(8))
scriptCap = UUID(aS.cfg.keys["capWorkersClearer"]['k'])
if mode == "system":
aS.s.callsy(0, scriptCap)
else:
aS.s.selfst(0, 1)
aS.s.ret()
aS.s.test()
aS.s.push()
def test_example_1(self):
tx_ins = []
prev_tx = bytes.fromhex(
'8be2f69037de71e3bc856a6627ed3e222a7a2d0ce81daeeb54a3aea8db274149')
prev_index = 4
tx_ins.append(TxIn(prev_tx, prev_index))
tx_outs = []
h160 = decode_base58('mzx5YhAH9kNHtcN481u6WkjeHjYtVeKVh2')
tx_outs.append(
TxOut(
amount=int(0.38 * 100000000),
script_pubkey=p2pkh_script(h160),
))
h160 = decode_base58('mnrVtF8DWjMu839VW3rBfgYaAfKk8983Xf')
tx_outs.append(
TxOut(
amount=int(0.1 * 100000000),
script_pubkey=p2pkh_script(h160),
))
tx_obj = Tx(1, tx_ins, tx_outs, 0, testnet=True)
z = tx_obj.sig_hash(0)
pk = PrivateKey(secret=8675309)
der = pk.sign(z).der()
sig = der + SIGHASH_ALL.to_bytes(1, 'big')
sec = pk.point.sec()
tx_obj.tx_ins[0].script_sig = Script([sig, sec])
want = '0100000001494127dba8aea354ebae1de80c2d7a2a223eed27666a85bce371de3790f6e28b040000006b483045022100fa3032607b50e8cb05bedc9d43f986f19dedc22e61320b9765061c5cd9c66946022072d514ef637988515bfa59a660596206de68f0ed4090d0a398e70f4d81370dfb012103935581e52c354cd2f484fe8ed83af7a3097005b2f9c60bff71d35bd795f54b67ffffffff0280d54302000000001976a914d52ad7ca9b3d096a38e752c2018e6fbc40cdf26f88ac80969800000000001976a914507b27411ccf7f16f10297de6cef3f291623eddf88ac00000000'
self.assertEqual(tx_obj.serialize().hex(), want)
def init_variables(self):
# Переменная времени
self.clock = pygame.time.Clock()
# Создание экземпляров классов
self.menu = Menu(self.screen)
self.script = Script(self.screen)
def sig_hash(self, input_index, hash_type):
'''Returns the integer representation of the hash that needs to get
signed for index input_index'''
# create a new set of tx_ins (alt_tx_ins)
alt_tx_ins = []
# iterate over self.tx_ins
for tx_in in self.tx_ins:
# create a new TxIn that has a blank script_sig (b'') and add to alt_tx_ins
alt_tx_ins.append(
TxIn(
prev_tx=tx_in.prev_tx,
prev_index=tx_in.prev_index,
script_sig=Script([]),
sequence=tx_in.sequence,
))
# grab the input at the input_index
signing_input = alt_tx_ins[input_index]
# grab the script_pubkey of the input
script_pubkey = signing_input.script_pubkey(self.testnet)
# the script_sig of the signing_input should be script_pubkey
signing_input.script_sig = script_pubkey
# create an alternate transaction with the modified tx_ins
alt_tx = self.__class__(version=self.version,
tx_ins=alt_tx_ins,
tx_outs=self.tx_outs,
locktime=self.locktime)
# add the hash_type int 4 bytes, little endian
result = alt_tx.serialize() + int_to_little_endian(hash_type, 4)
# get the double_sha256 of the tx serialization
s256 = double_sha256(result)
# convert this to a big-endian integer using int.from_bytes(x, 'big')
return int.from_bytes(s256, 'big')
def parse_segwit(cls, s, version):
'''Takes a byte stream and parses the segwit transaction in middle
return a Tx object
'''
marker = s.read(1)
if marker != b'\x01':
raise RuntimeError('Not a segwit transaction {}'.format(marker))
# num_inputs is a varint, use read_varint(s)
num_inputs = read_varint(s)
# each input needs parsing
tx_ins = []
for _ in range(num_inputs):
tx_ins.append(TxIn.parse(s))
# num_outputs is a varint, use read_varint(s)
num_outputs = read_varint(s)
# each output needs parsing
tx_outs = []
for _ in range(num_outputs):
tx_outs.append(TxOut.parse(s))
# now parse the witness program
for tx_in in tx_ins:
num_elements = read_varint(s)
elements = [num_elements]
for _ in range(num_elements):
element_len = read_varint(s)
elements.append(s.read(element_len))
tx_in.witness_program = Script(elements).serialize()
# locktime is 4 bytes, little-endian
locktime = little_endian_to_int(s.read(4))
# return an instance of the class (cls(...))
return cls(version, tx_ins, tx_outs, locktime)
def getScript():
'''
Store the JavaScript
'''
scriptTags = ScriptTag().getScriptTag()
for link in Links().getContent():
for scriptTag in scriptTags:
headTag = scriptTag.replace('\n', '').split('|')[0]
tailTag = scriptTag.replace('\n', '').split('|')[1]
source = link.getPage()
head = 0
length = len(source)
flag = True
while ((flag) and (head < length)):
flag = False
pos1 = source[head:].find(headTag) + head
pos2 = source[head:].find(tailTag) + head
if (pos1 >= head) and (pos2 >= head):
flag = True
tempString = source[pos1:pos2 + 9]
tempString = tempString.replace('\t', '')
tempString = tempString.replace('\n', '')
tempString = tempString.replace(' ', '')
script = Script(tempString, link.getUrl())
Scripts().addText(script)
head = pos2 + 10
pass
def sig_hash(self, índice_input, tipo_hash):
'''Devuelve la representación entera del hash que debe ser
firmado para índice índice_input'''
# crea una nueva serie de tx_ins (alt_tx_ins)
alt_tx_ins = []
# itera sobre self.tx_ins
for tx_in in self.tx_ins:
# crea una nueva TxIn que tenga un script_sig en blanco (b'') y añádela a alt_tx_ins
alt_tx_ins.append(TxIn(
tx_previa=tx_in.tx_previa,
índice_previo=tx_in.índice_previo,
script_sig=Script([]),
sequence=tx_in.sequence,
))
# grab the input at the índice_input
firmaring_input = alt_tx_ins[índice_input]
# grab the script_pubkey of the input
script_pubkey = firmaring_input.script_pubkey(self.testnet)
# the script_sig of the firmaring_input should be script_pubkey
firmaring_input.script_sig = script_pubkey
# create an alternate transaction with the modified tx_ins
alt_tx = self.__class__(
versión=self.versión,
tx_ins=alt_tx_ins,
tx_outs=self.tx_outs,
locktime=self.locktime)
# añade el tipo_hash int 4 bytes, little endian
res = alt_tx.serializar() + int_a_little_endian(tipo_hash, 4)
# obtén el doble_sha256 de la serializacón de la tx
s256 = doble_sha256(res)
# convierte esto a big-endian entero usando int.from_bytes(x, 'big')
return int.from_bytes(s256, 'big')