def create_signup_info(cls, originator_public_key_hash,
most_recent_wait_certificate_id):
with cls._lock:
# First we need to create a public/private key pair for the PoET
# enclave to use.
cls._poet_private_key = pybitcointools.random_key()
cls._poet_public_key = \
pybitcointools.privtopub(cls._poet_private_key)
cls._active_wait_timer = None
# We are going to fake out the sealing the signup data.
signup_data = {
'poet_public_key':
pybitcointools.encode_pubkey(cls._poet_public_key, 'hex'),
'poet_private_key':
pybitcointools.encode_privkey(cls._poet_private_key, 'hex')
}
sealed_signup_data = \
pybitcointools.base64.b64encode(dict2json(signup_data))
# Create a fake report
report_data = {
'originator_public_key_hash':
originator_public_key_hash.upper(),
'poet_public_key':
pybitcointools.encode_pubkey(cls._poet_public_key,
'hex').upper()
}
report = {
'report_data': pybitcointools.sha256(dict2json(report_data))
}
# Fake our "proof" data.
verification_report = {
'enclave_quote':
pybitcointools.base64.b64encode(dict2json(report)),
'pse_manifest_hash':
pybitcointools.base64.b64encode(
pybitcointools.sha256('manifest destiny')),
'nonce':
most_recent_wait_certificate_id
}
proof_data = {
'verification_report':
dict2json(verification_report),
'signature':
pybitcointools.ecdsa_sign(dict2json(verification_report),
cls._report_private_key)
}
proof_data_dict = dict2json(proof_data)
return \
EnclaveSignupInfo(
poet_public_key=signup_data['poet_public_key'],
proof_data=proof_data_dict,
anti_sybil_id=originator_public_key_hash,
sealed_signup_data=sealed_signup_data)
def sign_message_with_transaction(transaction, key):
"""
Signs a transaction message or transaction
:param transaction dict:
:param key str: A signing key
returns message, txnid tuple: The first 16 characters
of a sha256 hexdigest.
"""
transaction['Nonce'] = time.time()
pub = pybitcointools.encode_pubkey(pybitcointools.privkey_to_pubkey(key),
"hex")
transaction["public_key"] = pub
sig = pybitcointools.ecdsa_sign(
dict2cbor(transaction),
key
)
transaction['Signature'] = sig
txnid = hashlib.sha256(transaction['Signature']).hexdigest()[:16]
message = {
'Transaction': transaction,
'__TYPE__': "/mktplace.transactions.MarketPlace/Transaction",
'__NONCE__': time.time(),
}
cbor_serialized_mess = dict2cbor(message)
signature = pybitcointools.ecdsa_sign(
cbor_serialized_mess,
key
)
message['__SIGNATURE__'] = signature
return message, txnid
def test_register_permissioned_validator_invalid(self):
signing_key = signed_object.generate_signing_key()
unpermissiond_private_key = signed_object.generate_signing_key()
pub_key = pybitcointools.encode_pubkey(
pybitcointools.privtopub(unpermissiond_private_key), 'hex')
permissioned_public_keys = [pub_key]
addr = signed_object.generate_identifier(unpermissiond_private_key)
permissioned_addrs = [addr]
update = {
'whitelist_name': "hyperledger.sawtooth-core.genesis-whitelist",
'verb': 'reg',
'permissioned_public_keys': permissioned_public_keys,
'permissioned_addrs': permissioned_addrs
}
minfo = {'Update': update}
transaction = PermissionedValidatorRegistryTransaction(minfo)
transaction.sign_object(signing_key)
store = ObjectStore()
with self.assertRaises(InvalidTransactionError):
transaction.check_valid(store)
self.fail("Failure: Verified an invalid transaction")
def test_register_validator_key_mismatch(self):
key = signed_object.generate_signing_key()
public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
pybitcointools.privtopub(key),
'hex')).hexdigest()
key2 = signed_object.generate_signing_key()
validator_id = signed_object.generate_identifier(key)
name = 'DasValidator'
signup_info = \
SignupInfo.create_signup_info(
originator_public_key_hash=public_key_hash,
most_recent_wait_certificate_id='0' * 16)
store = ObjectStore()
transaction = \
ValidatorRegistryTransaction.register_validator(
name,
validator_id,
signup_info)
transaction.sign_object(key2)
with self.assertRaises(InvalidTransactionError):
transaction.check_valid(store)
self.fail("Failure: Verified an invalid transaction")
def setUpClass(cls):
cls._originator_public_key = cls._create_random_public_key()
cls._originator_public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
cls._originator_public_key,
'hex')).hexdigest()
def test_register_validator_re_register(self):
key = signed_object.generate_signing_key()
public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
pybitcointools.privtopub(key),
'hex')).hexdigest()
validator_id = signed_object.generate_identifier(key)
name = 'DasValidator'
signup_info = \
SignupInfo.create_signup_info(
originator_public_key_hash=public_key_hash,
most_recent_wait_certificate_id='0' * 16)
store = ObjectStore()
transaction = \
ValidatorRegistryTransaction.register_validator(
name,
validator_id,
signup_info)
transaction.sign_object(key)
try:
transaction.check_valid(store)
transaction.apply(store)
except InvalidTransactionError as e:
self.fail('Failed valid transaction: {}'.format(e))
try: # check if valid to register again
transaction.check_valid(store)
except InvalidTransactionError as e:
self.fail('Failure: Double registered validator: {}'.format(e))
def fiat_shamir(fs_state: bytes,
data: Union[List[Point], List[Scalar]],
nret=2) -> Tuple[bytes, List[Scalar]]:
"""
Generates nret integer chllange values from the currnet
interaction (data) and the previous challenge values (self.fs_state),
thus fulfilling the requirement of basing the challenge on the transcript of the
prover-verifier communication up to this point
"""
# Point type
if isinstance(data[0], tuple):
data_bs: bytes = reduce(lambda acc, x: acc + B.encode_pubkey(x, 'bin'),
data, b"")
# Scalar type
elif isinstance(data[0], int):
data_bs: bytes = reduce(
lambda acc, x: acc + B.encode_privkey(x, 'bin'), data, b"")
else:
raise Exception('Invalid `data` param type for fiat_shamir')
xb: bytes = hashlib.sha256(fs_state + data_bs).digest()
challenges: List[Scalar] = []
for _ in range(nret):
challenges.append(B.encode_privkey(xb, 'decimal'))
xb = hashlib.sha256(xb).digest()
return xb, challenges
def test_register_permissioned_validator_invalid(self):
signing_key = signed_object.generate_signing_key()
unpermissiond_private_key = signed_object.generate_signing_key()
pub_key = pybitcointools.encode_pubkey(
pybitcointools.privtopub(unpermissiond_private_key), 'hex')
permissioned_public_keys = [pub_key]
addr = signed_object.generate_identifier(unpermissiond_private_key)
permissioned_addrs = [addr]
update = {
'whitelist_name': "hyperledger.sawtooth-core.genesis-whitelist",
'verb': 'reg',
'permissioned_public_keys': permissioned_public_keys,
'permissioned_addrs': permissioned_addrs
}
minfo = {'Update': update}
transaction = PermissionedValidatorRegistryTransaction(minfo)
transaction.sign_object(signing_key)
store = ObjectStore()
with self.assertRaises(InvalidTransactionError):
transaction.check_valid(store)
self.fail("Failure: Verified an invalid transaction")
def _sign_message_with_transaction(transaction, message_type, key):
"""
Signs a transaction message or transaction
:param transaction (dict):
:param key (str): A signing key
returns message, txnid (tuple): The first 16 characters
of a sha256 hexdigest.
"""
transaction['Nonce'] = time.time()
pub = pybitcointools.encode_pubkey(pybitcointools.privkey_to_pubkey(key),
"hex")
transaction["public_key"] = pub
sig = pybitcointools.ecdsa_sign(_dict2cbor(transaction), key)
transaction['Signature'] = sig
txnid = hashlib.sha256(transaction['Signature']).hexdigest()[:16]
message = {
'Transaction': transaction,
'__TYPE__': message_type,
'__NONCE__': time.time(),
}
cbor_serialized_message = _dict2cbor(message)
signature = pybitcointools.ecdsa_sign(cbor_serialized_message, key)
message['__SIGNATURE__'] = signature
return message, txnid
def sender_payee_address_from_stealth(sender_prikey, receiver_pubkey):
# sender - derive payee address
ss1 = btc.multiply(receiver_pubkey, sender_prikey)
ss2 = btc.sha256(btc.encode_pubkey((ss1), 'bin_compressed'))
addr = btc.pubkey_to_address(btc.add_pubkeys(
receiver_pubkey, btc.privtopub(ss2)))
return addr
def setUpClass(cls):
args = {"NodeName": "DasValidator"}
poet_enclave.initialize(**args)
SignupInfo.poet_enclave = poet_enclave
cls._originator_public_key = cls._create_random_public_key()
cls._originator_public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
cls._originator_public_key,
'hex')).hexdigest()
cls._another_public_key = cls._create_random_public_key()
cls._another_public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
cls._another_public_key,
'hex')).hexdigest()
def setUpClass(cls):
# Reload the wait timer module to clear any changed global state
reload(wait_timer)
cls._originator_public_key = cls._create_random_public_key()
cls._originator_public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
cls._originator_public_key,
'hex')).hexdigest()
def create_signup_info(cls, originator_public_key):
# First we need to create a public/private key pair for the PoET
# enclave to use.
cls._poet_private_key = pybitcointools.random_key()
cls._poet_public_key = pybitcointools.privtopub(cls._poet_private_key)
cls._active_wait_timer = None
# We are going to fake out the sealing the signup data.
signup_data = {
'poet_public_key':
pybitcointools.encode_pubkey(cls._poet_public_key, 'hex'),
'poet_private_key':
pybitcointools.encode_privkey(cls._poet_private_key, 'hex')
}
sealed_signup_data = \
pybitcointools.base64.b32encode(dict2json(signup_data))
# Create a fake report
report_data = {
'originator_public_key_hash':
pybitcointools.sha256(
pybitcointools.encode_pubkey(originator_public_key, 'hex')),
'poet_public_key':
pybitcointools.encode_pubkey(cls._poet_public_key, 'hex')
}
report = {'report_data': pybitcointools.sha256(dict2json(report_data))}
report = pybitcointools.base64.b32encode(dict2json(report))
# Fake our "proof" data.
proof_data = {
'attestation_evidence_payload':
pybitcointools.sha256(report),
'attestation_verification_report':
pybitcointools.sha256('Shave and a haircut...Two bits!')
}
return \
EnclaveSignupInfo(
anti_sybil_id='Sally Field',
poet_public_key=signup_data['poet_public_key'],
proof_data=proof_data,
sealed_signup_data=sealed_signup_data)
def getNUMS(index=0) -> Point:
"""
Nothing Up My Sleeve
Taking secp256k1's G as a seed,
either in compressed or uncompressed form,
append "index" as a byte, and append a second byte "counter"
try to create a new NUMS base point from the sha256 of that
bytestring. Loop counter and alternate compressed/uncompressed
until finding a valid curve point. The first such point is
considered as "the" NUMS base point alternative for this index value.
The search process is of course deterministic/repeatable, so
it's fine to just store a list of all the correct values for
each index, but for transparency left in code for initialization
by any user.
"""
for G in [
B.encode_pubkey(B.G, 'bin_compressed'),
B.encode_pubkey(B.G, 'bin')
]:
# Using latin-1 since its used in BTC
seed = G + chr(index).encode('utf-8')
for counter in range(256):
seed_c = seed + chr(counter).encode('utf-8')
hash_seed = hashlib.sha256(seed_c).digest()
# Every x-coord on the curve has two y-values, encoded
# in compressed form with 02/03 parity byte. We just
# choose the former
claimed_point: bytes = chr(2).encode('utf-8') + hash_seed
try:
# Check to see if its a valid public key
C.PublicKey(claimed_point)
return B.encode_pubkey(claimed_point, 'decimal')
except:
continue
raise Exception('NUMS generation inconceivable')
def recover_pubkey(message, signature):
v, r, s = pybitcointools.decode_sig(signature)
msghash = pybitcointools.electrum_sig_hash(message)
q = pybitcointools.ecdsa_raw_recover(msghash, (v, r, s))
# A prior implementation set the behavior that this
# method should return an encoded recovered pubkey or
# an empty string if there is a recovery error. This
# differs from the pybitcointools implementation of
# ecdsa_recover, which returns the recovered pubkey
# or False, if a recovery error occurs.
if not q:
return ""
compress = True if v >= 31 else False
if compress:
pubkey = pybitcointools.encode_pubkey(q, 'hex_compressed')
else:
pubkey = pybitcointools.encode_pubkey(q, 'hex')
return pubkey
def test_register_permissioned_validator_valid(self):
signing_key = signed_object.generate_signing_key()
try:
priv_key1 = pybitcointools.decode_privkey(
open('./tests/unit/keys/pv1.wif', "r")
.read().strip(), 'wif')
priv_key2 = pybitcointools.decode_privkey(
open('./tests/unit/keys/pv2.wif', "r")
.read().strip(), 'wif')
except IOError as ex:
raise Exception('IOError: {}'.format(str(ex)))
pub_key1 = pybitcointools.encode_pubkey(
pybitcointools.privtopub(priv_key1), 'hex')
pub_key2 = pybitcointools.encode_pubkey(
pybitcointools.privtopub(priv_key2), 'hex')
permissioned_public_keys = [pub_key1, pub_key2]
addr1 = signed_object.generate_identifier(priv_key1)
addr2 = signed_object.generate_identifier(priv_key2)
permissioned_addrs = [addr1, addr2]
update = {
'whitelist_name': "hyperledger.sawtooth-core.genesis-whitelist",
'verb': 'reg',
'permissioned_public_keys': permissioned_public_keys,
'permissioned_addrs': permissioned_addrs
}
minfo = {'Update': update}
transaction = PermissionedValidatorRegistryTransaction(minfo)
transaction.sign_object(signing_key)
store = ObjectStore()
try:
transaction.check_valid(store)
transaction.apply(store)
except InvalidTransactionError as e:
self.fail('Failed valid transaction: {}'.format(e))
def test_register_permissioned_validator_valid(self):
signing_key = signed_object.generate_signing_key()
try:
priv_key1 = pybitcointools.decode_privkey(
open('./tests/unit/keys/pv1.wif', "r").read().strip(), 'wif')
priv_key2 = pybitcointools.decode_privkey(
open('./tests/unit/keys/pv2.wif', "r").read().strip(), 'wif')
except IOError as ex:
raise Exception('IOError: {}'.format(str(ex)))
pub_key1 = pybitcointools.encode_pubkey(
pybitcointools.privtopub(priv_key1), 'hex')
pub_key2 = pybitcointools.encode_pubkey(
pybitcointools.privtopub(priv_key2), 'hex')
permissioned_public_keys = [pub_key1, pub_key2]
addr1 = signed_object.generate_identifier(priv_key1)
addr2 = signed_object.generate_identifier(priv_key2)
permissioned_addrs = [addr1, addr2]
update = {
'whitelist_name': "hyperledger.sawtooth-core.genesis-whitelist",
'verb': 'reg',
'permissioned_public_keys': permissioned_public_keys,
'permissioned_addrs': permissioned_addrs
}
minfo = {'Update': update}
transaction = PermissionedValidatorRegistryTransaction(minfo)
transaction.sign_object(signing_key)
store = ObjectStore()
try:
transaction.check_valid(store)
transaction.apply(store)
except InvalidTransactionError as e:
self.fail('Failed valid transaction: {}'.format(e))
def do_generate(args):
private_key = pybitcointools.random_key()
public_key = pybitcointools.encode_pubkey(
pybitcointools.privkey_to_pubkey(private_key), "hex")
words = generate_word_list(args.pool_size)
batches = []
start = time.time()
total_txn_count = 0
for i in xrange(0, args.count):
txns = []
for _ in xrange(0, random.randint(1, args.batch_max_size)):
txn = create_intkey_transaction(
verb=random.choice(['set', 'inc', 'dec']),
name=random.choice(words),
value=random.randint(0, 100000),
private_key=private_key,
public_key=public_key)
total_txn_count += 1
txns.append(txn)
batch = create_batch(
transactions=txns,
private_key=private_key,
public_key=public_key)
batches.append(batch)
if i % 100 == 0 and i != 0:
stop = time.time()
txn_count = 0
for batch in batches[-100:]:
txn_count += len(batch.transactions)
fmt = 'batches {}, batch/sec: {:.2f}, txns: {}, txns/sec: {:.2f}'
print fmt.format(
str(i),
100 / (stop - start),
str(total_txn_count),
txn_count / (stop - start))
start = stop
batch_list = batch_pb2.BatchList(batches=batches)
print "Writing to {}...".format(args.output)
with open(args.output, "w") as fd:
fd.write(batch_list.SerializeToString())
def parse(self, data):
if re.match('^[0-9a-fA-F]*$', data):
data = data.decode('hex')
o = rlp.decode(data)
self.nonce = o[0]
self.to = o[1]
self.value = o[2]
self.fee = o[3]
self.data = o[4]
self.v = o[5]
self.r = o[6]
self.s = o[7]
rawhash = sha256(
rlp.encode([self.nonce, self.to, self.value, self.fee, self.data]))
pub = encode_pubkey(
ecdsa_raw_recover(rawhash, (self.v, self.r, self.s)), 'bin')
self.sender = bin_sha256(pub[1:])[-20:]
return self
def test_is_valid_pub_key(self):
pubkey = pybitcointools.privkey_to_pubkey("5KQ4iQQGgbQX9MmfiPUwwHBL1R"
"GPa86NwFbqrWoodjuzruqFVDd")
pub = pybitcointools.encode_pubkey(pubkey, "hex")
minfo = {'Nonce': 100, 'public_key': pub,
'TransactionType': '/Transaction', 'Dependencies': []}
sig = pybitcointools.ecdsa_sign(
signed_object.dict2cbor(minfo),
"5KQ4iQQGgbQX9MmfiPUwwHBL1RGPa86NwFbqrWoodjuzruqFVDd"
)
# Create valid transaction
minfo["Signature"] = sig
temp = Transaction(minfo)
self.assertTrue(temp.is_valid("unused"))
# Change transaction after it was signed
minfo["Nonce"] = time.time()
temp = Transaction(minfo)
self.assertFalse(temp.is_valid("unused"))
def check_valid(self, store, txn):
"""Determines if the update is valid.
Check policy on each element of validator_name, validator_id,
and signup_info
Args:
store (Store): Transaction store.
txn (Transaction): Transaction encompassing this update.
"""
LOGGER.debug('check update %s from %s', str(self), self.validator_id)
# Check name
if not self.is_valid_name():
raise InvalidTransactionError('Illegal validator name {}'.format(
self.validator_name[:64]))
# Check registering validator matches transaction signer.
if self.validator_id != txn.OriginatorID:
raise InvalidTransactionError(
'Signature mismatch on validator registration with validator'
' {} signed by {}'.format(self.validator_id, txn.OriginatorID))
# Nothing to check for anti_sybil_id
# Apply will invalidate any previous entries for this anti_sybil_id
# and create a new entry.
try:
public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
txn.originator_public_key,
'hex')).hexdigest()
self.signup_info.check_valid(
originator_public_key_hash=public_key_hash,
most_recent_wait_certificate_id='0' * 16)
except SignupInfoError as error:
raise InvalidTransactionError(
'Invalid Signup Info: {0}, Reason: {1}'.format(
self.signup_info, error))
return True
def test_is_valid_pub_key(self):
pubkey = pybitcointools.privkey_to_pubkey("5KQ4iQQGgbQX9MmfiPUwwHBL1R"
"GPa86NwFbqrWoodjuzruqFVDd")
pub = pybitcointools.encode_pubkey(pubkey, "hex")
minfo = {
'Nonce': 100,
'public_key': pub,
'TransactionType': '/Transaction',
'Dependencies': []
}
sig = pybitcointools.ecdsa_sign(
signed_object.dict2cbor(minfo),
"5KQ4iQQGgbQX9MmfiPUwwHBL1RGPa86NwFbqrWoodjuzruqFVDd")
# Create valid transaction
minfo["Signature"] = sig
temp = Transaction(minfo)
self.assertTrue(temp.is_valid("unused"))
# Change transaction after it was signed
minfo["Nonce"] = time.time()
temp = Transaction(minfo)
self.assertFalse(temp.is_valid("unused"))
def encode_pubkey(pubkey, encoding_format):
return pybitcointools.encode_pubkey(pubkey, encoding_format)
def pubkey_to_ethaddress(pubkey):
pub = encode_pubkey(pubkey, 'bin')
address = sha3_256(pub[1:])[12:]
return '0x' + address.encode('hex')
def initialization_complete(self, journal):
"""Processes all invocations that arrived while the ledger was
being initialized.
"""
# Before we allow the base journal to do anything that might result
# in a wait timer or wait certificate being created, we have to ensure
# the PoET enclave has been initialized. This can be done in one of
# two ways:
# 1. If we have sealed signup data (meaning that we have previously
# created signup info), we can request that the enclave unseal it,
# in the process restoring the enclave to its previous state.
# 2. Create new signup information.
signup_info = None
sealed_signup_data = journal.local_store.get('sealed_signup_data')
if sealed_signup_data is not None:
self.poet_public_key = SignupInfo.unseal_signup_data(
sealed_signup_data=sealed_signup_data)
else:
wait_certificate_id = journal.most_recent_committed_block_id
public_key_hash = \
hashlib.sha256(
pybitcointools.encode_pubkey(
journal.local_node.public_key(),
'hex')).hexdigest()
signup_info = \
SignupInfo.create_signup_info(
originator_public_key_hash=public_key_hash,
most_recent_wait_certificate_id=wait_certificate_id)
# Save off the sealed signup data
journal.local_store.set('sealed_signup_data',
signup_info.sealed_signup_data)
journal.local_store.sync()
self.poet_public_key = signup_info.poet_public_key
# propagate the maximum blocks to keep
journal.maximum_blocks_to_keep = max(
journal.maximum_blocks_to_keep,
WaitTimer.certificate_sample_length)
# initialize stats specifically for the block chain journal
journal.JournalStats.add_metric(stats.Value('LocalMeanTime', 0))
journal.JournalStats.add_metric(stats.Value('AggregateLocalMean', 0))
journal.JournalStats.add_metric(stats.Value('PopulationEstimate', 0))
journal.JournalStats.add_metric(
stats.Value('ExpectedExpirationTime', 0))
journal.JournalStats.add_metric(stats.Value('Duration', 0))
# initialize the block handlers
poet_transaction_block.register_message_handlers(journal)
# If we created signup information, then advertise self to network
if signup_info is not None:
# Create a validator register transaction and sign it. Wrap
# the transaction in a message. Broadcast it to out.
transaction = \
val_reg.ValidatorRegistryTransaction.register_validator(
journal.local_node.Name,
journal.local_node.Identifier,
signup_info)
transaction.sign_from_node(journal.local_node)
message = \
val_reg.ValidatorRegistryTransactionMessage()
message.Transaction = transaction
LOGGER.info('Advertise PoET 1 validator with name %s',
journal.local_node.Name)
journal.gossip.broadcast_message(message)
def do_generate(args):
private_key = pybitcointools.random_key()
public_key = pybitcointools.encode_pubkey(
pybitcointools.privkey_to_pubkey(private_key), "hex")
words = generate_word_list(args.pool_size)
txns = []
batches = []
bytecode = ""
with open(args.contract, "rb") as fd:
byte = fd.readline()
while byte != "":
bytecode += byte
byte = fd.readline()
byte_addr = get_address("jvm_sc", bytecode)
txn = create_jvm_sc_transaction(
verb='store',
private_key=private_key,
public_key=public_key,
bytecode=bytecode,
methods=["set", "inc", "dec"])
txns.append(txn)
keys = []
addresses = []
for i in range(20):
if len(txns) < 10:
key = random.choice(words)
keys.append(key)
value = str(random.randint(0, 1000))
key_addr = get_address("intkey", key)
addresses.append(key_addr)
txn = create_jvm_sc_transaction(
verb='run',
private_key=private_key,
public_key=public_key,
byte_addr=byte_addr,
method="set",
parameters=["key," + key, "value," + value,
"&check," + key_addr],
addresses=addresses)
txns.append(txn)
addresses = []
else:
batch = create_batch(txns, private_key, public_key)
batches.append(batch)
txns = []
for i in range(20):
if len(txns) < 10:
key = random.choice(keys)
key_addr = get_address("intkey", key)
addresses.append(key_addr)
txn = create_jvm_sc_transaction(
verb='run',
private_key=private_key,
public_key=public_key,
byte_addr=byte_addr,
method=random.choice(["inc", "dec"]),
parameters=["key," + key, "&value," + key_addr, "diff,2"],
addresses=addresses)
txns.append(txn)
addresses = []
else:
batch = create_batch(txns, private_key, public_key)
batches.append(batch)
txns = []
batch_list = batch_pb2.BatchList(batches=batches)
print "Writing to {}...".format(args.output)
with open(args.output, "w") as fd:
fd.write(batch_list.SerializeToString())
compressed_private_key = private_key + '01'
print("Private Key Compressed (hex) is: ", compressed_private_key)
# Generate a WIF format from the compressed private key (WIF-compressed)
wif_compressed_private_key = pybitcointools.encode_privkey(
pybitcointools.decode_privkey(compressed_private_key, 'hex'),
'wif_compressed')
print("Private Key (WIF-Compressed) is: ", wif_compressed_private_key)
# Multiply the EC generator point G with the private key to get a public key point
public_key = pybitcointools.fast_multiply(pybitcointools.G,
decoded_private_key)
print("Public Key (x,y) coordinates is:", public_key)
# Encode as hex, prefix 04
hex_encoded_public_key = pybitcointools.encode_pubkey(public_key, 'hex')
print("Public Key (hex) is:", hex_encoded_public_key)
# Compress public key, adjust prefix depending on whether y is even or odd
(public_key_x, public_key_y) = public_key
compressed_prefix = '02' if (public_key_y % 2) == 0 else '03'
hex_compressed_public_key = compressed_prefix + (pybitcointools.encode(
public_key_x, 16).zfill(64))
print("Compressed Public Key (hex) is:", hex_compressed_public_key)
# Generate pybitcointools address from public key
print("pybitcointools Address (b58check) is:",
pybitcointools.pubkey_to_address(public_key))
# Generate compressed pybitcointools address from compressed public key
print("Compressed pybitcointools Address (b58check) is:",
def multiply_pubkeys(p1, p2, n):
f1, f2 = get_pubkey_format(p1), get_pubkey_format(p2)
mp = fast_multiply(decode_pubkey(p2, f2), n)
return encode_pubkey(fast_add(decode_pubkey(p1, f1), mp), f1)
def create_stealth_address(spend_pubkey, magic_byte=42):
# magic_byte = 42 for mainnet, 43 for testnet.
hex_spendkey = btc.encode_pubkey(spend_pubkey, 'hex_compressed')
hex_data = '00{0:066x}'.format(int(hex_spendkey, 16))
addr = btc.hex_to_b58check(hex_data, magic_byte)
return addr
import pybitcointools
pub = pybitcointools.decode_pubkey(
"03d299230be2bf10cad8f0b6f25c905c67e6a5896956c59adc8774c7e601946acf")
print hex(pub[1])
pybitcointools.encode_pubkey(pub, "bin_compressed")
pub1 = pybitcointools.decode_pubkey(
"02a4e436bede8e4ed5f6193d64619b7dddbd42a3c26dcc057de79e8f0911342647")
print hex(pub1[1])
pybitcointools.encode_pubkey(pub1, "bin_compressed")
pub = pybitcointools.decode_pubkey(
"0335644013e62b3576612253e1a9860e2b0c71c9033a711522606832bbcc733a44")
print hex(pub[1])
pybitcointools.encode_pubkey(pub, "bin_compressed")
def create_signup_info(cls,
originator_public_key,
validator_network_basename,
most_recent_wait_certificate_id):
with cls._lock:
# First we need to create a public/private key pair for the PoET
# enclave to use.
cls._poet_private_key = pybitcointools.random_key()
cls._poet_public_key = \
pybitcointools.privtopub(cls._poet_private_key)
cls._active_wait_timer = None
# We are going to fake out the sealing the signup data.
signup_data = {
'poet_public_key':
pybitcointools.encode_pubkey(cls._poet_public_key, 'hex'),
'poet_private_key':
pybitcointools.encode_privkey(
cls._poet_private_key,
'hex')
}
sealed_signup_data = \
pybitcointools.base64.b32encode(dict2json(signup_data))
# Create a fake report
report_data = {
'originator_public_key_hash':
pybitcointools.sha256(
pybitcointools.encode_pubkey(
originator_public_key,
'hex')),
'poet_public_key':
pybitcointools.encode_pubkey(cls._poet_public_key, 'hex')
}
report = {
'report_data': pybitcointools.sha256(dict2json(report_data)),
'validator_network_basename': validator_network_basename
}
# Fake our "proof" data.
attestation_evidence_payload = {
'enclave_quote':
pybitcointools.base64.b64encode(dict2json(report)),
'pse_manifest':
pybitcointools.base64.b64encode(
pybitcointools.sha256(
'manifest destiny')),
'nonce': most_recent_wait_certificate_id
}
attestation_verification_report = {
'attestation_evidence_payload': attestation_evidence_payload,
'anti_sybil_id': cls._anti_sybil_id
}
proof_data = {
'attestation_verification_report':
attestation_verification_report,
'signature':
pybitcointools.ecdsa_sign(
dict2json(attestation_verification_report),
cls._report_private_key)
}
return \
EnclaveSignupInfo(
poet_public_key=signup_data['poet_public_key'],
proof_data=proof_data,
sealed_signup_data=sealed_signup_data)
def verify_signup_info(cls,
signup_info,
originator_public_key,
validator_network_basename,
most_recent_wait_certificate_id):
# Verify the attestation verification report signature
attestation_verification_report = \
signup_info.proof_data.get('attestation_verification_report')
if attestation_verification_report is None:
raise \
SignupInfoError(
'Attestation verification report is missing from proof '
'data')
if not pybitcointools.ecdsa_verify(
dict2json(attestation_verification_report),
signup_info.proof_data.get('signature'),
cls._report_public_key):
raise \
SignupInfoError(
'Attestation verification report signature is invalid')
# Verify the presence of the anti-Sybil ID
anti_sybil_id = attestation_verification_report.get('anti_sybil_id')
if anti_sybil_id is None:
raise \
SignupInfoError(
'Attestation verification report does not contain an '
'anti-Sybil ID')
# Verify that the report data field in the report contains the SHA256
# digest of the originator's public key SHA 256 digest and the PoET
# public key.
attestation_evidence_payload = \
attestation_verification_report.get(
'attestation_evidence_payload')
if attestation_evidence_payload is None:
raise \
SignupInfoError(
'Attestation verification report does not contain '
'attestation evidence payload')
enclave_quote = attestation_evidence_payload.get('enclave_quote')
if enclave_quote is None:
raise \
SignupInfoError(
'Attestation evidence payload does not contain an '
'enclave quote')
report = json2dict(pybitcointools.base64.b64decode(enclave_quote))
report_data = report.get('report_data')
if report_data is None:
raise \
SignupInfoError('Enclave quote does not contain report data')
target_report_data = {
'originator_public_key_hash':
pybitcointools.sha256(
pybitcointools.encode_pubkey(
originator_public_key,
'hex')),
'poet_public_key': signup_info.poet_public_key
}
target_report_data_digest = \
pybitcointools.sha256(dict2json(target_report_data))
if report_data != target_report_data_digest:
raise SignupInfoError('Enclave quote report data is invalid')
# Verify that the validator base name in the enclave quote report
# matches the provided validator network basename
validator_net_basename = report.get('validator_network_basename')
if validator_net_basename is None:
raise \
SignupInfoError(
'Enclave quote report does not have a validator network '
'basename')
if validator_net_basename != validator_network_basename:
raise \
SignupInfoError(
'Enclave quote report validator network basename [{0}] '
'does not match [{1}]'.format(
validator_net_basename,
validator_network_basename))
def do_generate(args):
private_key = pybitcointools.random_key()
public_key = pybitcointools.encode_pubkey(
pybitcointools.privkey_to_pubkey(private_key), "hex")
words = generate_word_list(args.pool_size)
txns = []
batches = []
bytecode = ""
with open(args.contract, "rb") as fd:
byte = fd.readline()
while byte != "":
bytecode += byte
byte = fd.readline()
byte_addr = get_address("jvm_sc", bytecode)
txn = create_jvm_sc_transaction(verb='store',
private_key=private_key,
public_key=public_key,
bytecode=bytecode,
methods=["set", "inc", "dec"])
txns.append(txn)
keys = []
addresses = []
for i in range(20):
if len(txns) < 10:
key = random.choice(words)
keys.append(key)
value = str(random.randint(0, 1000))
key_addr = get_address("intkey", key)
addresses.append(key_addr)
txn = create_jvm_sc_transaction(verb='run',
private_key=private_key,
public_key=public_key,
byte_addr=byte_addr,
method="set",
parameters=[
"key," + key, "value," + value,
"&check," + key_addr
],
addresses=addresses)
txns.append(txn)
addresses = []
else:
batch = create_batch(txns, private_key, public_key)
batches.append(batch)
txns = []
for i in range(20):
if len(txns) < 10:
key = random.choice(keys)
key_addr = get_address("intkey", key)
addresses.append(key_addr)
txn = create_jvm_sc_transaction(
verb='run',
private_key=private_key,
public_key=public_key,
byte_addr=byte_addr,
method=random.choice(["inc", "dec"]),
parameters=["key," + key, "&value," + key_addr, "diff,2"],
addresses=addresses)
txns.append(txn)
addresses = []
else:
batch = create_batch(txns, private_key, public_key)
batches.append(batch)
txns = []
batch_list = batch_pb2.BatchList(batches=batches)
print "Writing to {}...".format(args.output)
with open(args.output, "w") as fd:
fd.write(batch_list.SerializeToString())
def receiver_payee_privkey_from_stealth(receiver_prikey, sender_pubkey):
# sender - derive payee address
ss1 = btc.multiply(sender_pubkey, receiver_prikey)
ss2 = btc.sha256(btc.encode_pubkey((ss1), 'bin_compressed'))
key = btc.add_privkeys(receiver_prikey, ss2)
return key
