def get_vdf_info_and_proof(
constants: ConsensusConstants,
vdf_input: ClassgroupElement,
challenge_hash: bytes32,
number_iters: uint64,
) -> Tuple[VDFInfo, VDFProof]:
int_size = (constants.DISCRIMINANT_SIZE_BITS + 16) >> 4
result: bytes = prove(
bytes(challenge_hash),
str(vdf_input.a),
str(vdf_input.b),
constants.DISCRIMINANT_SIZE_BITS,
number_iters,
)
output = ClassgroupElement(
int512(int.from_bytes(
result[0:int_size],
"big",
signed=True,
)),
int512(
int.from_bytes(
result[int_size:2 * int_size],
"big",
signed=True,
)),
)
proof_bytes = result[2 * int_size:4 * int_size]
return VDFInfo(challenge_hash, number_iters,
output), VDFProof(uint8(0), proof_bytes)
def _create_block(
self,
test_constants: ConsensusConstants,
challenge_hash: bytes32,
height: uint32,
prev_header_hash: bytes32,
prev_iters: uint64,
prev_weight: uint128,
timestamp: uint64,
difficulty: int,
min_iters: int,
seed: bytes,
genesis: bool = False,
reward_puzzlehash: bytes32 = None,
transactions: Program = None,
aggsig: G2Element = None,
fees: uint64 = uint64(0),
) -> FullBlock:
"""
Creates a block with the specified details. Uses the stored plots to create a proof of space,
and also evaluates the VDF for the proof of time.
"""
selected_plot_info = None
selected_proof_index = 0
selected_quality: Optional[bytes] = None
best_quality = 0
plots = [
pinfo for _, pinfo in sorted(list(self.plots.items()),
key=lambda x: str(x[0]))
]
if self.use_any_pos:
random.seed(seed)
for i in range(len(plots) * 3):
# Allow passing in seed, to create reorgs and different chains
seeded_pn = random.randint(0, len(plots) - 1)
plot_info = plots[seeded_pn]
plot_id = plot_info.prover.get_id()
ccp = ProofOfSpace.can_create_proof(
plot_id,
challenge_hash,
test_constants.NUMBER_ZERO_BITS_CHALLENGE_SIG,
)
if not ccp:
continue
qualities = plot_info.prover.get_qualities_for_challenge(
challenge_hash)
if len(qualities) > 0:
selected_plot_info = plot_info
selected_quality = qualities[0]
break
else:
for i in range(len(plots)):
plot_info = plots[i]
j = 0
plot_id = plot_info.prover.get_id()
ccp = ProofOfSpace.can_create_proof(
plot_id,
challenge_hash,
test_constants.NUMBER_ZERO_BITS_CHALLENGE_SIG,
)
if not ccp:
continue
qualities = plot_info.prover.get_qualities_for_challenge(
challenge_hash)
for quality in qualities:
qual_int = int.from_bytes(quality, "big", signed=False)
if qual_int > best_quality:
best_quality = qual_int
selected_quality = quality
selected_plot_info = plot_info
selected_proof_index = j
j += 1
assert selected_plot_info is not None
if selected_quality is None:
raise RuntimeError("No proofs for this challenge")
proof_xs: bytes = selected_plot_info.prover.get_full_proof(
challenge_hash, selected_proof_index)
plot_pk = ProofOfSpace.generate_plot_public_key(
selected_plot_info.local_sk.get_g1(),
selected_plot_info.farmer_public_key,
)
proof_of_space: ProofOfSpace = ProofOfSpace(
challenge_hash,
selected_plot_info.pool_public_key,
plot_pk,
selected_plot_info.prover.get_size(),
proof_xs,
)
number_iters: uint64 = pot_iterations.calculate_iterations(
proof_of_space,
difficulty,
min_iters,
test_constants.NUMBER_ZERO_BITS_CHALLENGE_SIG,
)
if self.real_plots:
print(f"Performing {number_iters} VDF iterations")
int_size = (test_constants.DISCRIMINANT_SIZE_BITS + 16) >> 4
result = prove(challenge_hash, test_constants.DISCRIMINANT_SIZE_BITS,
number_iters)
output = ClassgroupElement(
int512(int.from_bytes(
result[0:int_size],
"big",
signed=True,
)),
int512(
int.from_bytes(
result[int_size:2 * int_size],
"big",
signed=True,
)),
)
proof_bytes = result[2 * int_size:4 * int_size]
proof_of_time = ProofOfTime(
challenge_hash,
number_iters,
output,
uint8(0),
proof_bytes,
)
# Use the extension data to create different blocks based on header hash
extension_data: bytes32 = bytes32(
[random.randint(0, 255) for _ in range(32)])
cost = uint64(0)
fee_reward = uint64(block_rewards.calculate_base_fee(height) + fees)
std_hash(std_hash(height))
# Create filter
byte_array_tx: List[bytes32] = []
tx_additions: List[Coin] = []
tx_removals: List[bytes32] = []
if transactions:
error, npc_list, _ = get_name_puzzle_conditions(transactions)
additions: List[Coin] = additions_for_npc(npc_list)
for coin in additions:
tx_additions.append(coin)
byte_array_tx.append(bytearray(coin.puzzle_hash))
for npc in npc_list:
tx_removals.append(npc.coin_name)
byte_array_tx.append(bytearray(npc.coin_name))
farmer_ph = self.farmer_ph
pool_ph = self.pool_ph
if reward_puzzlehash is not None:
farmer_ph = reward_puzzlehash
pool_ph = reward_puzzlehash
byte_array_tx.append(bytearray(farmer_ph))
byte_array_tx.append(bytearray(pool_ph))
bip158: PyBIP158 = PyBIP158(byte_array_tx)
encoded = bytes(bip158.GetEncoded())
removal_merkle_set = MerkleSet()
addition_merkle_set = MerkleSet()
# Create removal Merkle set
for coin_name in tx_removals:
removal_merkle_set.add_already_hashed(coin_name)
# Create addition Merkle set
puzzlehash_coin_map: Dict[bytes32, List[Coin]] = {}
cb_reward = calculate_block_reward(height)
cb_coin = create_coinbase_coin(height, pool_ph, cb_reward)
fees_coin = create_fees_coin(height, farmer_ph, fee_reward)
for coin in tx_additions + [cb_coin, fees_coin]:
if coin.puzzle_hash in puzzlehash_coin_map:
puzzlehash_coin_map[coin.puzzle_hash].append(coin)
else:
puzzlehash_coin_map[coin.puzzle_hash] = [coin]
# Addition Merkle set contains puzzlehash and hash of all coins with that puzzlehash
for puzzle, coins in puzzlehash_coin_map.items():
addition_merkle_set.add_already_hashed(puzzle)
addition_merkle_set.add_already_hashed(hash_coin_list(coins))
additions_root = addition_merkle_set.get_root()
removal_root = removal_merkle_set.get_root()
generator_hash = (transactions.get_tree_hash()
if transactions is not None else bytes32([0] * 32))
filter_hash = std_hash(encoded)
pool_target = PoolTarget(pool_ph, uint32(height))
pool_target_signature = self.get_pool_key_signature(
pool_target, proof_of_space.pool_public_key)
assert pool_target_signature is not None
final_aggsig: G2Element = pool_target_signature
if aggsig is not None:
final_aggsig = AugSchemeMPL.aggregate([final_aggsig, aggsig])
header_data: HeaderData = HeaderData(
height,
prev_header_hash,
timestamp,
filter_hash,
proof_of_space.get_hash(),
uint128(prev_weight + difficulty),
uint64(prev_iters + number_iters),
additions_root,
removal_root,
farmer_ph,
fee_reward,
pool_target,
final_aggsig,
cost,
extension_data,
generator_hash,
)
header_hash_sig: G2Element = self.get_plot_signature(
header_data, plot_pk)
header: Header = Header(header_data, header_hash_sig)
full_block: FullBlock = FullBlock(proof_of_space, proof_of_time,
header, transactions, encoded)
return full_block
async def _do_process_communication(self, challenge_hash, challenge_weight,
ip, reader, writer):
disc: int = create_discriminant(
challenge_hash, self.constants["DISCRIMINANT_SIZE_BITS"])
prefix = str(len(str(disc)))
if len(prefix) == 1:
prefix = "00" + prefix
writer.write((prefix + str(disc)).encode())
await writer.drain()
try:
ok = await reader.readexactly(2)
except (asyncio.IncompleteReadError, ConnectionResetError,
Exception) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
if challenge_hash not in self.done_discriminants:
self.done_discriminants.append(challenge_hash)
return
if ok.decode() != "OK":
return
log.info("Got handshake with VDF client.")
async with self.lock:
self.active_discriminants[challenge_hash] = (writer,
challenge_weight, ip)
self.active_discriminants_start_time[challenge_hash] = time.time()
asyncio.create_task(self._send_iterations(challenge_hash, writer))
# Listen to the client until "STOP" is received.
while True:
try:
data = await reader.readexactly(4)
except (asyncio.IncompleteReadError, ConnectionResetError,
Exception) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
if challenge_hash in self.active_discriminants:
del self.active_discriminants[challenge_hash]
if challenge_hash in self.active_discriminants_start_time:
del self.active_discriminants_start_time[
challenge_hash]
if challenge_hash not in self.done_discriminants:
self.done_discriminants.append(challenge_hash)
break
msg = ""
try:
msg = data.decode()
except Exception as e:
log.error(f"Exception while decoding data {e}")
pass
if msg == "STOP":
log.info(f"Stopped client running on ip {ip}.")
async with self.lock:
writer.write(b"ACK")
await writer.drain()
break
else:
try:
# This must be a proof, 4bytes is length prefix
length = int.from_bytes(data, "big")
proof = await reader.readexactly(length)
stdout_bytes_io: io.BytesIO = io.BytesIO(
bytes.fromhex(proof.decode()))
except (
asyncio.IncompleteReadError,
ConnectionResetError,
Exception,
) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
if challenge_hash in self.active_discriminants:
del self.active_discriminants[challenge_hash]
if challenge_hash in self.active_discriminants_start_time:
del self.active_discriminants_start_time[
challenge_hash]
if challenge_hash not in self.done_discriminants:
self.done_discriminants.append(challenge_hash)
break
iterations_needed = uint64(
int.from_bytes(stdout_bytes_io.read(8), "big",
signed=True))
y_size_bytes = stdout_bytes_io.read(8)
y_size = uint64(
int.from_bytes(y_size_bytes, "big", signed=True))
y_bytes = stdout_bytes_io.read(y_size)
proof_bytes: bytes = stdout_bytes_io.read()
# Verifies our own proof just in case
a = int.from_bytes(y_bytes[:129], "big", signed=True)
b = int.from_bytes(y_bytes[129:], "big", signed=True)
output = ClassgroupElement(int512(a), int512(b))
proof_of_time = ProofOfTime(
challenge_hash,
iterations_needed,
output,
self.config["n_wesolowski"],
proof_bytes,
)
if not proof_of_time.is_valid(
self.constants["DISCRIMINANT_SIZE_BITS"]):
log.error("Invalid proof of time")
response = timelord_protocol.ProofOfTimeFinished(proof_of_time)
await self._update_avg_ips(challenge_hash, iterations_needed,
ip)
async with self.lock:
self.proofs_to_write.append(
OutboundMessage(
NodeType.FULL_NODE,
Message("proof_of_time_finished", response),
Delivery.BROADCAST,
))
await self._update_proofs_count(challenge_weight)
def _create_block(
self,
test_constants: Dict,
challenge_hash: bytes32,
height: uint32,
prev_header_hash: bytes32,
prev_iters: uint64,
prev_weight: uint128,
timestamp: uint64,
difficulty: uint64,
min_iters: uint64,
seed: bytes,
genesis: bool = False,
reward_puzzlehash: bytes32 = None,
transactions: Program = None,
aggsig: BLSSignature = None,
fees: uint64 = uint64(0),
) -> FullBlock:
"""
Creates a block with the specified details. Uses the stored plots to create a proof of space,
and also evaluates the VDF for the proof of time.
"""
selected_prover = None
selected_plot_sk = None
selected_pool_sk = None
selected_proof_index = 0
plots = list(self.plot_config["plots"].items())
selected_quality: Optional[bytes] = None
best_quality = 0
if self.use_any_pos:
for i in range(len(plots) * 3):
# Allow passing in seed, to create reorgs and different chains
random.seed(seed + i.to_bytes(4, "big"))
seeded_pn = random.randint(0, len(plots) - 1)
pool_sk = PrivateKey.from_bytes(
bytes.fromhex(plots[seeded_pn][1]["pool_sk"])
)
plot_sk = PrivateKey.from_bytes(
bytes.fromhex(plots[seeded_pn][1]["sk"])
)
prover = DiskProver(plots[seeded_pn][0])
qualities = prover.get_qualities_for_challenge(challenge_hash)
if len(qualities) > 0:
if self.use_any_pos:
selected_quality = qualities[0]
selected_prover = prover
selected_pool_sk = pool_sk
selected_plot_sk = plot_sk
break
else:
for i in range(len(plots)):
pool_sk = PrivateKey.from_bytes(bytes.fromhex(plots[i][1]["pool_sk"]))
plot_sk = PrivateKey.from_bytes(bytes.fromhex(plots[i][1]["sk"]))
prover = DiskProver(plots[i][0])
qualities = prover.get_qualities_for_challenge(challenge_hash)
j = 0
for quality in qualities:
qual_int = int.from_bytes(quality, "big", signed=False)
if qual_int > best_quality:
best_quality = qual_int
selected_quality = quality
selected_prover = prover
selected_pool_sk = pool_sk
selected_plot_sk = plot_sk
selected_proof_index = j
j += 1
assert selected_prover
assert selected_pool_sk
assert selected_plot_sk
pool_pk = selected_pool_sk.get_public_key()
plot_pk = selected_plot_sk.get_public_key()
if selected_quality is None:
raise RuntimeError("No proofs for this challenge")
proof_xs: bytes = selected_prover.get_full_proof(
challenge_hash, selected_proof_index
)
proof_of_space: ProofOfSpace = ProofOfSpace(
challenge_hash, pool_pk, plot_pk, selected_prover.get_size(), proof_xs
)
number_iters: uint64 = pot_iterations.calculate_iterations(
proof_of_space, difficulty, min_iters
)
# print("Doing iters", number_iters)
int_size = (test_constants["DISCRIMINANT_SIZE_BITS"] + 16) >> 4
result = prove(
challenge_hash, test_constants["DISCRIMINANT_SIZE_BITS"], number_iters
)
output = ClassgroupElement(
int512(int.from_bytes(result[0:int_size], "big", signed=True,)),
int512(
int.from_bytes(result[int_size : 2 * int_size], "big", signed=True,)
),
)
proof_bytes = result[2 * int_size : 4 * int_size]
proof_of_time = ProofOfTime(
challenge_hash, number_iters, output, self.n_wesolowski, proof_bytes,
)
if not reward_puzzlehash:
reward_puzzlehash = self.fee_target
# Use the extension data to create different blocks based on header hash
extension_data: bytes32 = bytes32([random.randint(0, 255) for _ in range(32)])
cost = uint64(0)
coinbase_reward = block_rewards.calculate_block_reward(height)
fee_reward = uint64(block_rewards.calculate_base_fee(height) + fees)
coinbase_coin, coinbase_signature = create_coinbase_coin_and_signature(
height, reward_puzzlehash, coinbase_reward, selected_pool_sk
)
parent_coin_name = std_hash(std_hash(height))
fees_coin = Coin(parent_coin_name, reward_puzzlehash, uint64(fee_reward))
# Create filter
byte_array_tx: List[bytes32] = []
tx_additions: List[Coin] = []
tx_removals: List[bytes32] = []
encoded = None
if transactions:
error, npc_list, _ = get_name_puzzle_conditions(transactions)
additions: List[Coin] = additions_for_npc(npc_list)
for coin in additions:
tx_additions.append(coin)
byte_array_tx.append(bytearray(coin.puzzle_hash))
for npc in npc_list:
tx_removals.append(npc.coin_name)
byte_array_tx.append(bytearray(npc.coin_name))
bip158: PyBIP158 = PyBIP158(byte_array_tx)
encoded = bytes(bip158.GetEncoded())
removal_merkle_set = MerkleSet()
addition_merkle_set = MerkleSet()
# Create removal Merkle set
for coin_name in tx_removals:
removal_merkle_set.add_already_hashed(coin_name)
# Create addition Merkle set
puzzlehash_coin_map: Dict[bytes32, List[Coin]] = {}
for coin in tx_additions:
if coin.puzzle_hash in puzzlehash_coin_map:
puzzlehash_coin_map[coin.puzzle_hash].append(coin)
else:
puzzlehash_coin_map[coin.puzzle_hash] = [coin]
# Addition Merkle set contains puzzlehash and hash of all coins with that puzzlehash
for puzzle, coins in puzzlehash_coin_map.items():
addition_merkle_set.add_already_hashed(puzzle)
addition_merkle_set.add_already_hashed(hash_coin_list(coins))
additions_root = addition_merkle_set.get_root()
removal_root = removal_merkle_set.get_root()
generator_hash = (
transactions.get_tree_hash()
if transactions is not None
else bytes32([0] * 32)
)
filter_hash = std_hash(encoded) if encoded is not None else bytes32([0] * 32)
header_data: HeaderData = HeaderData(
height,
prev_header_hash,
timestamp,
filter_hash,
proof_of_space.get_hash(),
uint128(prev_weight + difficulty),
uint64(prev_iters + number_iters),
additions_root,
removal_root,
coinbase_coin,
coinbase_signature,
fees_coin,
aggsig,
cost,
extension_data,
generator_hash,
)
header_hash_sig: PrependSignature = selected_plot_sk.sign_prepend(
header_data.get_hash()
)
header: Header = Header(header_data, header_hash_sig)
full_block: FullBlock = FullBlock(
proof_of_space, proof_of_time, header, transactions, encoded
)
return full_block
def get_default_element():
return ClassgroupElement(int512(2), int512(1))
async def _do_process_communication(
self,
chain: Chain,
challenge: bytes32,
initial_form: ClassgroupElement,
ip: str,
reader: asyncio.StreamReader,
writer: asyncio.StreamWriter,
):
disc: int = create_discriminant(challenge,
self.constants.DISCRIMINANT_SIZE_BITS)
try:
# Depending on the flags 'fast_algorithm' and 'sanitizer_mode',
# the timelord tells the vdf_client what to execute.
async with self.lock:
if self.config["fast_algorithm"]:
# Run n-wesolowski (fast) algorithm.
writer.write(b"N")
else:
# Run two-wesolowski (slow) algorithm.
writer.write(b"T")
await writer.drain()
prefix = str(len(str(disc)))
if len(prefix) == 1:
prefix = "00" + prefix
if len(prefix) == 2:
prefix = "0" + prefix
async with self.lock:
writer.write((prefix + str(disc)).encode())
await writer.drain()
# Send (a, b) from 'initial_form'.
for num in [initial_form.a, initial_form.b]:
prefix_l = len(str(num))
prefix_len = len(str(prefix_l))
async with self.lock:
writer.write(
(str(prefix_len) + str(prefix_l) + str(num)).encode())
await writer.drain()
try:
ok = await reader.readexactly(2)
except (asyncio.IncompleteReadError, ConnectionResetError,
Exception) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
self.vdf_failures.append(chain)
self.vdf_failures_count += 1
return
if ok.decode() != "OK":
return
log.info("Got handshake with VDF client.")
async with self.lock:
self.allows_iters.append(chain)
# Listen to the client until "STOP" is received.
while True:
try:
data = await reader.readexactly(4)
except (
asyncio.IncompleteReadError,
ConnectionResetError,
Exception,
) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
self.vdf_failures.append(chain)
self.vdf_failures_count += 1
break
msg = ""
try:
msg = data.decode()
except Exception:
pass
if msg == "STOP":
log.info(f"Stopped client running on ip {ip}.")
async with self.lock:
writer.write(b"ACK")
await writer.drain()
break
else:
try:
# This must be a proof, 4 bytes is length prefix
length = int.from_bytes(data, "big")
proof = await reader.readexactly(length)
stdout_bytes_io: io.BytesIO = io.BytesIO(
bytes.fromhex(proof.decode()))
except (
asyncio.IncompleteReadError,
ConnectionResetError,
Exception,
) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
self.vdf_failures.append(chain)
self.vdf_failures_count += 1
break
iterations_needed = uint64(
int.from_bytes(stdout_bytes_io.read(8),
"big",
signed=True))
y_size_bytes = stdout_bytes_io.read(8)
y_size = uint64(
int.from_bytes(y_size_bytes, "big", signed=True))
y_bytes = stdout_bytes_io.read(y_size)
witness_type = uint8(
int.from_bytes(stdout_bytes_io.read(1),
"big",
signed=True))
proof_bytes: bytes = stdout_bytes_io.read()
# Verifies our own proof just in case
int_size = (self.constants.DISCRIMINANT_SIZE_BITS +
16) >> 4
a = int.from_bytes(y_bytes[:int_size], "big", signed=True)
b = int.from_bytes(y_bytes[int_size:], "big", signed=True)
output = ClassgroupElement(int512(a), int512(b))
time_taken = time.time() - self.chain_start_time[chain]
ips = int(iterations_needed / time_taken * 10) / 10
log.info(
f"Finished PoT chall:{challenge[:10].hex()}.. {iterations_needed}"
f" iters, "
f"Estimated IPS: {ips}, Chain: {chain}")
vdf_info: VDFInfo = VDFInfo(
challenge,
iterations_needed,
output,
)
vdf_proof: VDFProof = VDFProof(
witness_type,
proof_bytes,
)
if not vdf_proof.is_valid(self.constants, initial_form,
vdf_info):
log.error("Invalid proof of time!")
async with self.lock:
self.proofs_finished.append(
(chain, vdf_info, vdf_proof))
except ConnectionResetError as e:
log.info(f"Connection reset with VDF client {e}")
async def _do_process_communication(
self, challenge_hash, challenge_weight, ip, reader, writer
):
disc: int = create_discriminant(challenge_hash, self.discriminant_size_bits)
# Depending on the flags 'fast_algorithm' and 'sanitizer_mode',
# the timelord tells the vdf_client what to execute.
if not self.sanitizer_mode:
if self.config["fast_algorithm"]:
# Run n-wesolowski (fast) algorithm.
writer.write(b"N")
else:
# Run two-wesolowski (slow) algorithm.
writer.write(b"T")
else:
# Create compact proofs of time.
writer.write(b"S")
await writer.drain()
prefix = str(len(str(disc)))
if len(prefix) == 1:
prefix = "00" + prefix
writer.write((prefix + str(disc)).encode())
await writer.drain()
try:
ok = await reader.readexactly(2)
except (asyncio.IncompleteReadError, ConnectionResetError, Exception) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
if challenge_hash not in self.done_discriminants:
self.done_discriminants.append(challenge_hash)
if self.sanitizer_mode:
if challenge_hash in self.pending_iters:
del self.pending_iters[challenge_hash]
if challenge_hash in self.submitted_iters:
del self.submitted_iters[challenge_hash]
return
if ok.decode() != "OK":
return
log.info("Got handshake with VDF client.")
async with self.lock:
self.active_discriminants[challenge_hash] = (writer, challenge_weight, ip)
self.active_discriminants_start_time[challenge_hash] = time.time()
asyncio.create_task(self._send_iterations(challenge_hash, writer))
# Listen to the client until "STOP" is received.
while True:
try:
data = await reader.readexactly(4)
except (asyncio.IncompleteReadError, ConnectionResetError, Exception) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
if challenge_hash in self.active_discriminants:
del self.active_discriminants[challenge_hash]
if challenge_hash in self.active_discriminants_start_time:
del self.active_discriminants_start_time[challenge_hash]
if challenge_hash not in self.done_discriminants:
self.done_discriminants.append(challenge_hash)
if self.sanitizer_mode:
if challenge_hash in self.pending_iters:
del self.pending_iters[challenge_hash]
if challenge_hash in self.submitted_iters:
del self.submitted_iters[challenge_hash]
break
msg = ""
try:
msg = data.decode()
except Exception as e:
log.error(f"Exception while decoding data {e}")
if msg == "STOP":
log.info(f"Stopped client running on ip {ip}.")
async with self.lock:
writer.write(b"ACK")
await writer.drain()
break
else:
try:
# This must be a proof, 4bytes is length prefix
length = int.from_bytes(data, "big")
proof = await reader.readexactly(length)
stdout_bytes_io: io.BytesIO = io.BytesIO(
bytes.fromhex(proof.decode())
)
except (
asyncio.IncompleteReadError,
ConnectionResetError,
Exception,
) as e:
log.warning(f"{type(e)} {e}")
async with self.lock:
if challenge_hash in self.active_discriminants:
del self.active_discriminants[challenge_hash]
if challenge_hash in self.active_discriminants_start_time:
del self.active_discriminants_start_time[challenge_hash]
if challenge_hash not in self.done_discriminants:
self.done_discriminants.append(challenge_hash)
if self.sanitizer_mode:
if challenge_hash in self.pending_iters:
del self.pending_iters[challenge_hash]
if challenge_hash in self.submitted_iters:
del self.submitted_iters[challenge_hash]
break
iterations_needed = uint64(
int.from_bytes(stdout_bytes_io.read(8), "big", signed=True)
)
y_size_bytes = stdout_bytes_io.read(8)
y_size = uint64(int.from_bytes(y_size_bytes, "big", signed=True))
y_bytes = stdout_bytes_io.read(y_size)
witness_type = uint8(
int.from_bytes(stdout_bytes_io.read(1), "big", signed=True)
)
proof_bytes: bytes = stdout_bytes_io.read()
# Verifies our own proof just in case
a = int.from_bytes(y_bytes[:129], "big", signed=True)
b = int.from_bytes(y_bytes[129:], "big", signed=True)
output = ClassgroupElement(int512(a), int512(b))
proof_of_time = ProofOfTime(
challenge_hash,
iterations_needed,
output,
witness_type,
proof_bytes,
)
if not proof_of_time.is_valid(self.discriminant_size_bits):
log.error("Invalid proof of time")
response = timelord_protocol.ProofOfTimeFinished(proof_of_time)
await self._update_avg_ips(challenge_hash, iterations_needed, ip)
async with self.lock:
self.proofs_to_write.append(
OutboundMessage(
NodeType.FULL_NODE,
Message("proof_of_time_finished", response),
Delivery.BROADCAST,
)
)
if not self.sanitizer_mode:
await self._update_proofs_count(challenge_weight)
else:
async with self.lock:
writer.write(b"010")
await writer.drain()
try:
del self.active_discriminants[challenge_hash]
del self.active_discriminants_start_time[challenge_hash]
del self.pending_iters[challenge_hash]
del self.submitted_iters[challenge_hash]
except KeyError:
log.error("Discriminant stopped anormally.")