def __init__(self, genesis, key, network, env, time_offset=5): # Create a chain object self.chain = Chain(genesis, env=env) # Use the validator's time as the chain's time self.chain.time = lambda: self.get_timestamp() # My private key self.key = key # My address self.address = privtoaddr(key) # My randao self.randao = RandaoManager(sha3(self.key)) # Pointer to the test p2p network self.network = network # Record of objects already received and processed self.received_objects = {} # The minimum eligible timestamp given a particular number of skips self.next_skip_count = 0 self.next_skip_timestamp = 0 # This validator's indices in the state self.indices = None # Is this validator active? self.active = False # Code that verifies signatures from this validator self.validation_code = generate_validation_code(privtoaddr(key)) # Parents that this validator has already built a block on self.used_parents = {} # This validator's clock offset (for testing purposes) self.time_offset = random.randrange(time_offset) - (time_offset // 2) # Determine the epoch length self.epoch_length = self.call_casper('getEpochLength') # Give this validator a unique ID self.id = len(ids) ids.append(self.id) self.find_my_indices() self.cached_head = self.chain.head_hash
def __init__(self, genesis, key, network, env, time_offset=5): # Create a chain object self.chain = Chain(genesis, env=env) # Use the validator's time as the chain's time self.chain.time = lambda: self.get_timestamp() # My private key self.key = key # My address self.address = privtoaddr(key) # My randao self.randao = RandaoManager(sha3(self.key)) # Pointer to the test p2p network self.network = network # Record of objects already received and processed self.received_objects = {} # The minimum eligible timestamp given a particular number of skips self.next_skip_count = 0 self.next_skip_timestamp = 0 # This validator's indices in the state self.indices = None # Code that verifies signatures from this validator self.validation_code = generate_validation_code(privtoaddr(key)) # Parents that this validator has already built a block on self.used_parents = {} # This validator's clock offset (for testing purposes) self.time_offset = random.randrange(time_offset) - (time_offset // 2) # Give this validator a unique ID self.id = len(ids) ids.append(self.id) self.find_my_indices() self.cached_head = self.chain.head_hash
def generate_genesis(path=None, num_participants=1): privkeys = [ utils.sha3(utils.to_string(i)) for i in range(num_participants) ] addrs = [utils.privtoaddr(k) for k in privkeys] deposit_sizes = [i * 500 + 500 for i in range(num_participants)] randaos = [RandaoManager(utils.sha3(k)) for k in privkeys] validators = [(generate_validation_code(a), ds * 10**18, r.get(9999), a) for a, ds, r in zip(addrs, deposit_sizes, randaos)] s = make_casper_genesis(validators=validators, alloc={a: { 'balance': 10**18 } for a in addrs}, timestamp=int(time.time()), epoch_length=100) genesis_hash = apply_const_message( s, sender=casper_config['METROPOLIS_ENTRY_POINT'], to=casper_config['METROPOLIS_BLOCKHASH_STORE'], data=utils.encode_int32(0)) genesis_number = call_casper(s, 'getBlockNumber') print('genesis block hash: %s' % utils.encode_hex(genesis_hash)) print('genesis block number: %d' % genesis_number) print('%d validators: %r' % (num_participants, [utils.encode_hex(a) for a in addrs])) snapshot = s.to_snapshot() header = s.prev_headers[0] genesis = { "nonce": "0x" + utils.encode_hex(header.nonce), "difficulty": utils.int_to_hex(header.difficulty), "mixhash": "0x" + utils.encode_hex(header.mixhash), "coinbase": "0x" + utils.encode_hex(header.coinbase), "timestamp": utils.int_to_hex(header.timestamp), "parentHash": "0x" + utils.encode_hex(header.prevhash), "extraData": "0x" + utils.encode_hex(header.extra_data), "gasLimit": utils.int_to_hex(header.gas_limit), "alloc": snapshot["alloc"] } if path: with open(path, 'w') as f: json.dump(genesis, f, sort_keys=False, indent=4, separators=(',', ': ')) print('casper genesis generated') else: return genesis
def __init__(self, genesis, key, network, env, time_offset=5): # Create a chain object self.chain = Chain(genesis, env=env) # Create a transaction queue self.txqueue = TransactionQueue() # Use the validator's time as the chain's time self.chain.time = lambda: self.get_timestamp() # My private key self.key = key # My address self.address = privtoaddr(key) # My randao self.randao = RandaoManager(sha3(self.key)) # Pointer to the test p2p network self.network = network # Record of objects already received and processed self.received_objects = {} # The minimum eligible timestamp given a particular number of skips self.next_skip_count = 0 self.next_skip_timestamp = 0 # Is this validator active? self.active = False # Code that verifies signatures from this validator self.validation_code = generate_validation_code(privtoaddr(key)) # Validation code hash self.vchash = sha3(self.validation_code) # Parents that this validator has already built a block on self.used_parents = {} # This validator's clock offset (for testing purposes) self.time_offset = random.randrange(time_offset) - (time_offset // 2) # Determine the epoch length self.epoch_length = self.call_casper('getEpochLength') # My minimum gas price self.mingasprice = 20 * 10**9 # Give this validator a unique ID self.id = len(ids) ids.append(self.id) self.update_activity_status() self.cached_head = self.chain.head_hash
import time import rlp # config_string = ':info,eth.vm.log:trace,eth.vm.op:trace,eth.vm.stack:trace,eth.vm.exit:trace,eth.pb.msg:trace,eth.pb.tx:debug' config_string = ':info,eth.vm.log:trace' configure_logging(config_string=config_string) NUM_PARTICIPANTS = 10 BLOCK_MAKING_PPB = 10 print('Initializing privkeys, addresses and randaos for validators') privkeys = [utils.sha3(str(i)) for i in range(NUM_PARTICIPANTS)] addrs = [utils.privtoaddr(k) for k in privkeys] randaos = [RandaoManager(utils.sha3(str(i))) for i in range(NUM_PARTICIPANTS)] deposit_sizes = [i * 500 + 500 for i in range(NUM_PARTICIPANTS)] vcodes = [generate_validation_code(a) for a in addrs] vchashes = [utils.sha3(c) for c in vcodes] assert len(privkeys) == len(addrs) == len(randaos) == len(deposit_sizes) == len(vcodes) == len(vchashes) == NUM_PARTICIPANTS # Creating casper contract translator ct = get_casper_ct() assert ct print('Constructing genesis') s = make_casper_genesis(validators=[(generate_validation_code(a), ds * 10**18, r.get(9999), a) for a, ds, r in zip(addrs, deposit_sizes, randaos)][:-1], alloc={a: {'balance': 10**18} for a in addrs}, timestamp=int(time.time() - 99999), epoch_length=100) print('Genesis constructed successfully') chains = [Chain(s.to_snapshot(), env=s.env) for i in range(NUM_PARTICIPANTS)] withdrawal_time_1 = call_casper(chains[0].state, 'getLockDuration', [vchashes[0]])
s = mk_basic_state({}, None, env=Env(config=casper_config)) s.gas_limit = 10**9 s.prev_headers[0].timestamp = 2 s.timestamp = 2 s.prev_headers[0].difficulty = 1 s.block_difficulty = 1 s.set_code(casper_config['CASPER_ADDR'], get_casper_code()) s.set_code(casper_config['RLP_DECODER_ADDR'], get_rlp_decoder_code()) s.set_code(casper_config['HASH_WITHOUT_BLOOM_ADDR'], get_hash_without_ed_code()) ct = get_casper_ct() # Add all validators for k, r, ds in zip(keys, randaos, deposit_sizes): a = privtoaddr(k) # Leave 1 eth to pay txfees s.set_balance(a, (ds + 1) * 10**18) t = Transaction(0, 0, 10**8, casper_config['CASPER_ADDR'], ds * 10**18, ct.encode('deposit', [generate_validation_code(a), r.get(9999)])).sign(k) success, gas, logs = apply_transaction(s, t) s.commit() g = s.to_snapshot() print 'Genesis state created' validators = [Validator(g, k, n, Env(config=casper_config), time_offset=4) for k in keys] n.agents = validators n.generate_peers() for i in range(100000): # print 'ticking' n.tick() if i % 100 == 0: print 'Validator heads:', [v.chain.head.header.number if v.chain.head else None for v in validators] print 'Total blocks created:', casper.global_block_counter
from ethereum.slogging import LogRecorder, configure_logging, set_level # config_string = ':info,eth.vm.log:trace,eth.vm.op:trace,eth.vm.stack:trace,eth.vm.exit:trace,eth.pb.msg:trace,eth.pb.tx:debug' config_string = ':info,eth.vm.log:trace' configure_logging(config_string=config_string) n = networksim.NetworkSimulator(latency=150) n.time = 2 print 'Generating keys' keys = [sha3(str(i)) for i in range(20)] print 'Initializing randaos' randaos = [RandaoManager(sha3(k)) for k in keys] deposit_sizes = [128] * 15 + [256] * 5 print 'Creating genesis state' s = make_casper_genesis( validators=[(generate_validation_code(privtoaddr(k)), ds * 10**18, r.get(9999)) for k, ds, r in zip(keys, deposit_sizes, randaos)], alloc={privtoaddr(k): { 'balance': 10**18 } for k in keys}, timestamp=2, epoch_length=50) g = s.to_snapshot() print 'Genesis state created' validators = [ Validator(g, k, n, Env(config=casper_config), time_offset=4) for k in keys ] n.agents = validators
from ethereum.slogging import LogRecorder, configure_logging, set_level # config_string = ':info,eth.vm.log:trace,eth.vm.op:trace,eth.vm.stack:trace,eth.vm.exit:trace,eth.pb.msg:trace,eth.pb.tx:debug' config_string = ':info,eth.vm.log:trace' configure_logging(config_string=config_string) n = networksim.NetworkSimulator(latency=150) n.time = 2 print 'Generating keys' keys = [sha3(str(i)) for i in range(20)] print 'Initializing randaos' randaos = [RandaoManager(sha3(k)) for k in keys] deposit_sizes = [128] * 15 + [256] * 5 print 'Creating genesis state' s = make_casper_genesis(validators=[(generate_validation_code(privtoaddr(k)), ds * 10**18, r.get(9999)) for k, ds, r in zip(keys, deposit_sizes, randaos)], alloc={privtoaddr(k): {'balance': 10**18} for k in keys}, timestamp=2, epoch_length=40) g = s.to_snapshot() print 'Genesis state created' validators = [Validator(g, k, n, Env(config=casper_config), time_offset=4) for k in keys] n.agents = validators n.generate_peers() lowest_shared_height = -1 made_101_check = 0 for i in range(100000): # print 'ticking'