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 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_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]*$', tx):
return binascii.unhexlify(
custom_sign(safe_hexlify(tx), i, priv, hashcode))
if len(priv) <= 33:
priv = b.safe_hexlify(priv)
pub = b.privkey_to_pubkey(priv)
address = b.pubkey_to_address(pub)
if t not in ["atomic_1", "atomic_2"]:
script = b.mk_pubkey_script(address)
if script == "": error()
signing_tx = b.signature_form(
tx, i, script,
hashcode) #mk_pubkey_scrip needs to be our custom scriptn
sig = b.ecdsa_tx_sign(signing_tx, priv, hashcode)
txobj = b.deserialize(tx)
if t == "atomic_1":
txobj["ins"][i]["script"] = b.serialize_script([sig])
if t == "atomic_2":
old_sig = txobj["ins"][i]["script"]
txobj["ins"][i]["script"] = b.serialize_script([old_sig, sig, 1])
else:
txobj["ins"][i]["script"] = b.serialize_script([sig, pub])
return b.serialize(txobj)
def segwit_sign(tx, i, priv, amount, hashcode=SIGHASH_ALL, script=None, separator_index=None):
i = int(i)
txobj = tx if isinstance(tx, dict) else deserialize(tx)
if not isinstance(tx, dict) and ((not is_python2 and isinstance(re, bytes)) or not re.match('^[0-9a-fA-F]*$', 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 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)