"".join(['\x00' for i in range(leading_zeros)]), 'utf8'):
return False
return int(hash_g[leading_zeros]) < next_char_limit
def find_nonce(self):
for i in range(10000000):
self.nonce = ''.join([
chr(random.randint(0, 255)) for i in range(10 * leading_zeros)
])
if self.good_nonce():
return self.nonce
return None
if __name__ == "__main__":
pr1, pu1 = signature.generate_keys()
pr2, pu2 = signature.generate_keys()
pr3, pu3 = signature.generate_keys()
Tx1 = Tx()
Tx1.add_input(pu1, 1)
Tx1.add_output(pu2, 1)
Tx1.sign(pr1)
if Tx1.is_valid():
print("Success! Tx is valid")
else:
print("Error! Tx is invalid")
savefile = open("save.dat", "wb")
def find_nonce(self):
for i in range(1000000):
self.nonce = "".join([
chr(random.randint(0, 255)) for i in range(10 * leading_zeros)
])
if self.good_nonce():
return self.nonce
return None
if __name__ == '__main__':
print("txBlock.py tests start here")
private_key1, public_key1 = generate_keys()
private_key2, public_key2 = generate_keys()
private_key3, public_key3 = generate_keys()
private_key4, public_key4 = generate_keys()
Tx1 = Tx()
Tx1.add_input(public_key1, 1)
Tx1.add_output(public_key2, 1)
Tx1.sign(private_key1)
print('Tx{0} validation status before loading is: {1}'.format(
1, Tx1.is_valid()))
savefile = open("save.dat", "wb")
pickle.dump(Tx1, savefile)
savefile.close()
# Find nonce
for i in range(10):
print("Finding Nonce...")
newBlock.find_nonce()
if newBlock.good_nonce():
break
if not newBlock.good_nonce():
print("Error. Couldn't find nonce")
return False
# Send new block to wallets
for ip_addr in wallet_list:
socketUtils.sendObj(ip_addr, newBlock, 5006)
# Replace new block with previously longest block
head_blocks.remove(newBlock.previousBlock)
head_blocks.append(newBlock)
print(head_blocks, "Everything done successfully in miner")
# Open server connection
# Rec'v 2 transactions
# Collect them into block
# Fine nonce
# Send that block to wallet_list
return False
my_private_key, my_public_key = signature.generate_keys()
minerServer('localhost', wallet_list, my_public_key)
def __init__(self, name):
self.name = name
self.public_key, self.private_key = generate_keys()
# compute and add mining reward
total_in, total_out = newBlock.count_totals()
mine_reward = Tx()
mine_reward.add_output(miner_public, 25.0 + total_in - total_out)
newBlock.addTx(mine_reward)
print("Reward obtained: ", mine_reward)
# Find the nonce
for i in range(10):
print("Finding nonce")
newBlock.find_nonce()
if newBlock.good_nonce():
print("Good nonce found")
break
if not newBlock.good_nonce():
print("Error: couldn't find nonce")
return False
# Send the block to the wallets
for ip_address in wallets:
print("Send object: ", ip_address)
socket_utils.sendObj('localhost', newBlock, 5006)
head_blocks.remove(newBlock.previous_block)
head_blocks.append(newBlock)
return False
my_pr, my_pu = signature.generate_keys()
minerServer('localhost', wallets, my_pu)