class TestCoin(unittest.TestCase):
def __init__(self, *args, **kwargs):
super(TestCoin, self).__init__(*args, **kwargs)
self.network = testNetwork()
self.ec_keys = [random_sk() for _ in range(10)]
self.public_keys = [make_fake_public_key(secret_key=sk) for sk in self.ec_keys]
self.addresses = [address_from_public_key(public_key) for public_key in self.public_keys]
for address in self.addresses:
for value in [10000, 1000, 500, 100]:
self.network.add_coin(address, value, tx_hash = fake_hash(address, value))
self.coin = Coin(self.network)
def test_001_sufficient_funds(self):
pubkey_1, pubkey_2, pubkey_3 = self.public_keys[0:3]
address_1, address_2, address_3 = self.addresses[0:3]
address_x = "111111111111111111111111111"
inputs = {
pubkey_1:[
fake_hash(address_1, 1000) + ":0",
fake_hash(address_1, 100) + ":0"
],
pubkey_2:[
fake_hash(address_2, 1000) + ":0"]
}
self.assertTrue(self.coin.check_inputs_for_sufficient_funds(inputs, 2022))
self.assertFalse(self.coin.check_inputs_for_sufficient_funds(inputs, 20022))
bad_hash_input = {Hash("pubkey_1").hex():["a1h4"]}
self.assertIsNone(self.coin.check_inputs_for_sufficient_funds(bad_hash_input, 2222))
bad_address_input = {Hash("pubkey_111").hex():["a111h1"]}
self.assertIsNone(self.coin.check_inputs_for_sufficient_funds(bad_address_input, 2222))
def test_002_get_coins(self):
pubkey_1, pubkey_2, pubkey_3 = self.public_keys[0:3]
address_1, address_2, address_3 = self.addresses[0:3]
inputs = {
pubkey_1:[
fake_hash(address_1, 1000)+":0",
fake_hash(address_1, 100)+":0"
],
pubkey_2:[fake_hash(address_2, 1000)+":0"]
}
coins = self.coin.get_coins(inputs)
self.assertEquals(coins[pubkey_1][0]["value"], 1000)
self.assertEquals(coins[pubkey_1][0]["tx_hash"], fake_hash(address_1, 1000))
self.assertEquals(coins[pubkey_1][1]["value"], 100)
self.assertEquals(coins[pubkey_1][1]["tx_hash"], fake_hash(address_1, 100))
self.assertEquals(coins[pubkey_2][0]["value"], 1000)
self.assertEquals(coins[pubkey_2][0]["tx_hash"], fake_hash(address_2, 1000))
bad_input = {
pubkey_1:[fake_hash(address_2, 2222)]
}
coins = self.coin.get_coins(bad_input)
self.assertIsNone(coins)
def test_003_make_unsigned_transaction(self):
fee = 50
amount = 1000
pubkey_1, pubkey_2, pubkey_3, pubkey_4 = self.public_keys[0:4]
address_1, address_2, address_3, address_4 = self.addresses[0:4]
inputs = {
"player_1_vk":
{
pubkey_1:[
fake_hash(address_1, 500) + ":0",
fake_hash(address_1, 100) + ":0",
],
pubkey_2:[
fake_hash(address_2, 500) + ":0",
]
},
"player_2_vk":
{
pubkey_3:[
fake_hash(address_3, 1000) + ":0" ,
fake_hash(address_3, 100) + ":0",
]
},
"player_3_vk":
{
pubkey_4:[
fake_hash(address_4, 10000)+ ":0",
]
}
}
outputs = [make_fake_address() for _ in range(3)]
changes = { player:make_fake_address() for player in ["player_1_vk", "player_2_vk", "player_3_vk"]}
transaction = self.coin.make_unsigned_transaction(amount, fee, inputs, outputs, changes)
flat_inputs = [
{"public_key": pubkey_1, "address": address_1, "tx_hash": inputs["player_1_vk"][pubkey_1][0].split(":")[0], "value": 500},
{"public_key": pubkey_1, "address": address_1, "tx_hash": inputs["player_1_vk"][pubkey_1][1].split(":")[0], "value": 100},
{"public_key": pubkey_2, "address": address_2, "tx_hash": inputs["player_1_vk"][pubkey_2][0].split(":")[0], "value": 500},
{"public_key": pubkey_3, "address": address_3, "tx_hash": inputs["player_2_vk"][pubkey_3][0].split(":")[0], "value": 1000},
{"public_key": pubkey_3, "address": address_3, "tx_hash": inputs["player_2_vk"][pubkey_3][1].split(":")[0], "value": 100},
{"public_key": pubkey_4, "address": address_4, "tx_hash": inputs["player_3_vk"][pubkey_4][0].split(":")[0], "value": 10000},
]
flat_inputs.sort(key=lambda x:x["tx_hash"])
for i, input in enumerate(transaction.inputs()):
self.assertEquals(input['value'], flat_inputs[i]['value'])
self.assertEquals(input['tx_hash'], flat_inputs[i]['tx_hash'])
self.assertEquals(input['pubkeys'][0], flat_inputs[i]['public_key'])
self.assertEquals(input['address'].to_string(Address.FMT_LEGACY), flat_inputs[i]['address'])
amounts = {"player_1_vk":1100, "player_2_vk":1100, "player_3_vk":10000 }
flat_changes = [(changes[player], amounts[player]) for player in sorted(changes)]
flat_outputs = [
(0, Address.from_string(outputs[0]), amount),
(0, Address.from_string(outputs[1]), amount),
(0, Address.from_string(outputs[2]), amount),
(0, Address.from_string(flat_changes[0][0]), flat_changes[0][1] - amount -fee),
(0, Address.from_string(flat_changes[1][0]), flat_changes[1][1] - amount -fee),
(0, Address.from_string(flat_changes[2][0]), flat_changes[2][1] - amount - fee)
]
self.assertEquals(transaction.outputs(), flat_outputs)
def test_004_all_about_signatures(self):
fee = 50
amount = 1000
sk_1, sk_2, sk_3, sk_4 = self.ec_keys[0:4]
pubkey_1, pubkey_2, pubkey_3, pubkey_4 = self.public_keys[0:4]
address_1, address_2, address_3, address_4 = self.addresses[0:4]
inputs_vk_1 = {
pubkey_1:[
fake_hash(address_1, 500)+":0",
fake_hash(address_1, 100)+":0",
],
pubkey_2:[
fake_hash(address_2, 500)+":0",
]
}
inputs_vk_2 = {
pubkey_3:[
fake_hash(address_3, 1000)+":0",
fake_hash(address_3, 100)+":0",
]
}
inputs_vk_3 = {
pubkey_4:[
fake_hash(address_4, 10000)+":0",
]
}
inputs = {
"player_1_vk": inputs_vk_1,
"player_2_vk": inputs_vk_2,
"player_3_vk": inputs_vk_3
}
outputs = [make_fake_address() for _ in range(3)]
changes = { player:make_fake_address() for player in ["player_1_vk", "player_2_vk", "player_3_vk"]}
transaction = self.coin.make_unsigned_transaction(amount, fee, inputs, outputs, changes)
secret_keys_vk_1 = {pubkey_1:sk_1, pubkey_2: sk_2}
secret_keys_vk_2 = {pubkey_3:sk_3}
secret_keys_vk_3 = {pubkey_4:sk_4}
signatures = {}
signatures.update(self.coin.get_transaction_signature(transaction, inputs_vk_1, secret_keys_vk_1))
signatures.update(self.coin.get_transaction_signature(transaction, inputs_vk_2, secret_keys_vk_2))
signatures.update(self.coin.get_transaction_signature(transaction, inputs_vk_3, secret_keys_vk_3))
for player in inputs:
for pubkey in inputs[player]:
for tx_hash in inputs[player][pubkey]:
signature = signatures[tx_hash]
self.assertTrue(self.coin.verify_tx_signature(signature , transaction, pubkey, tx_hash))
self.coin.add_transaction_signatures(transaction, signatures)
def test_005_verigy_signatures(self):
message = b"some_message_for_test"
sk_1 = random_sk()
pubkey_1 = sk_1.get_public_key(True)
signature_1 = sk_1.sign_message(message, True)
self.assertTrue(self.coin.verify_signature(signature_1, message, pubkey_1))
sk_2 = random_sk()
pubkey_2 = sk_2.get_public_key(False)
signature_2 = sk_2.sign_message(message, False)
self.assertTrue(self.coin.verify_signature(signature_2, message, pubkey_2))
self.assertFalse(self.coin.verify_signature(signature_2, message, pubkey_1))
class TestRound(unittest.TestCase):
def __init__(self, *args, **kwargs):
super(TestRound, self).__init__(*args, **kwargs)
self.network = testNetwork()
self.ec_keys = [random_sk() for _ in range(10)]
self.public_keys = [
make_fake_public_key(secret_key=sk) for sk in self.ec_keys
]
self.addresses = [
address_from_public_key(public_key)
for public_key in self.public_keys
]
for address in self.addresses:
for value in [10000, 1000, 500, 100]:
self.network.add_coin(address,
value,
tx_hash=fake_hash(address, value))
self.coin = Coin(self.network)
def setUp(self):
self.number_of_players = 5
self.crypto = Crypto()
self.messages = Messages()
self.outchan = Channel()
self.inchan = Channel()
self.logchan = Channel()
self.session = b"session"
self.phase = Phase('Announcement')
self.amount = 1000
self.fee = 50
self.secret_keys = [random_sk() for _ in range(self.number_of_players)]
self.verification_keys = [
make_fake_public_key(secret_key=sk) for sk in self.secret_keys
]
self.players = {
index + 1: vk
for index, vk in enumerate(self.verification_keys)
}
self.inputs = {
self.verification_keys[0]: {
self.public_keys[0]: [
fake_hash(self.addresses[0], 500) + ":0",
fake_hash(self.addresses[0], 100) + ":0"
],
self.public_keys[1]:
[fake_hash(self.addresses[1], 500) + ":0"]
},
self.verification_keys[1]: {
self.public_keys[2]: [
fake_hash(self.addresses[2], 1000) + ":0",
fake_hash(self.addresses[2], 100) + ":0"
],
},
self.verification_keys[2]: {
self.public_keys[3]:
[fake_hash(self.addresses[3], 1000) + ":0"],
self.public_keys[4]:
[fake_hash(self.addresses[4], 100) + ":0"],
},
self.verification_keys[3]: {
self.public_keys[5]:
[fake_hash(self.addresses[5], 10000) + ":0"],
},
self.verification_keys[4]: {
self.public_keys[6]:
[fake_hash(self.addresses[6], 1000) + ":0"],
self.public_keys[7]:
[fake_hash(self.addresses[7], 500) + ":0"]
}
}
self.sks = {
self.public_keys[0]: self.ec_keys[0],
self.public_keys[1]: self.ec_keys[1],
}
self.all_sks = {
self.verification_keys[0]: {
self.public_keys[0]: self.ec_keys[0],
self.public_keys[1]: self.ec_keys[1]
},
self.verification_keys[1]: {
self.public_keys[2]: self.ec_keys[2],
},
self.verification_keys[2]: {
self.public_keys[3]: self.ec_keys[3],
self.public_keys[4]: self.ec_keys[4],
},
self.verification_keys[3]: {
self.public_keys[5]: self.ec_keys[5],
},
self.verification_keys[4]: {
self.public_keys[6]: self.ec_keys[6],
self.public_keys[7]: self.ec_keys[7]
}
}
self.sk = self.secret_keys[0]
self.verification_key = self.verification_keys[0]
self.new_addresses = [
make_fake_address() for _ in range(self.number_of_players)
]
self.changes = {
vk: make_fake_address()
for vk in self.verification_keys
}
self.addr_new = self.new_addresses[0]
self.change = make_fake_address()
self.round = Round(self.coin, self.crypto, self.messages, self.inchan,
self.outchan, self.logchan, self.session,
self.phase, self.amount, self.fee, self.sk,
self.sks, self.inputs, self.verification_key,
self.players, self.addr_new, self.change)
def test_001_test_init(self):
self.assertEquals(self.round.number_of_players, self.number_of_players)
self.assertEquals(self.round.me, 1)
def test_002_blame_insufficient_funds(self):
self.assertTrue(self.round.blame_insufficient_funds())
self.assertEquals(self.logchan.get(),
"Player 1 finds sufficient funds")
self.round.inputs[self.round.players[1]][
self.public_keys[1]][0] = fake_hash(self.addresses[1], 100) + ":0"
self.assertFalse(self.round.blame_insufficient_funds())
self.assertEquals(self.logchan.get(),
"Blame: insufficient funds of player 1")
self.assertIsNotNone(self.outchan.get(timeout=0))
def test_0021_blame_insufficient_funds_network_fail(self):
self.round.coin.network = None
self.assertIsNone(self.round.blame_insufficient_funds())
self.assertEquals(self.logchan.get(),
"Error: blockchain network fault!")
def test_003_process_equivocation_check(self):
# SetUp
self.round.new_addresses = self.new_addresses
self.round.changes = self.changes
self.round.encryption_keys = {
player: "encryption_key"
for player in self.round.players.values()
}
computed_hash = self.crypto.hash(
str(self.round.new_addresses) + str([
self.round.encryption_keys[self.round.players[i]]
for i in sorted(self.round.players)
]))
# Wrong phase ignored
self.round.phase = 'Announcement'
self.round.process_equivocation_check()
self.assertTrue(self.outchan.empty())
self.assertTrue(self.logchan.empty())
# Set Proper phase
# Check if incomplete inbox ignored
self.round.phase = 'EquivocationCheck'
self.round.inbox[self.messages.phases[self.round.phase]] = {
self.round.players[1]: "something"
}
self.round.process_equivocation_check()
self.assertTrue(self.outchan.empty())
self.assertTrue(self.logchan.empty())
# check processing with inbox completed
# making the fake messages with equal hashes and fulfill inbox with it
self.messages.clear_packets()
self.messages.add_hash(computed_hash)
message = self.messages.packets.SerializeToString()
self.round.inbox[self.messages.phases[self.round.phase]] = {
player: message
for player in self.round.players.values()
}
self.round.process_equivocation_check()
self.assertEquals(self.round.phase, "VerificationAndSubmission")
self.assertTrue(self.logchan.get(timeout=0),
"Player 1 reaches phase 5")
self.assertTrue(self.logchan.get(timeout=0),
"Player 1 send transction signatures")
self.assertTrue(self.logchan.empty())
self.assertIsNotNone(self.round.transaction)
self.messages.packets.ParseFromString(self.outchan.get(timeout=0))
self.assertTrue(self.outchan.empty())
signatures = self.messages.get_signatures()
for pubkey in self.round.inputs[self.round.vk]:
for hash in self.round.inputs[self.round.vk][pubkey]:
self.assertIn(hash, signatures)
# Checking the blame behaviour
self.round.phase = 'EquivocationCheck'
self.messages.clear_packets()
self.messages.add_hash(computed_hash + b"fail")
message = self.messages.packets.SerializeToString()
self.round.inbox[self.messages.phases[self.round.phase]][
self.round.vk] = message
self.round.process_equivocation_check()
self.assertEquals(self.round.phase, "Blame")
self.assertEquals(self.logchan.get(timeout=0),
"Player 1 found bad hash from 1")
self.assertEquals(self.logchan.get(timeout=0),
"Blame: wrong hash computed by player 1")
self.assertTrue(self.logchan.empty())
self.messages.packets.ParseFromString(self.outchan.get(timeout=0))
self.assertEquals(
self.messages.get_blame_reason(),
self.messages.blame_reason("EQUIVOCATIONFAILURE")
) # This should be replaced with allias for the reason instread of 2.
def test_004_process_verification_and_submission(self):
self.round.phase = 'VerificationAndSubmission'
# Check if nothing is happend with incomplete inbox
self.round.inbox[self.messages.phases[self.round.phase]] = {
self.round.players[1]: "something"
}
self.round.process_verification_and_submission()
self.assertTrue(self.outchan.empty())
self.assertTrue(self.logchan.empty())
# Check normal case
transaction = self.coin.make_unsigned_transaction(
self.amount, self.fee, self.inputs, self.new_addresses,
self.changes)
self.round.transaction = transaction
signatures = {
player:
self.coin.get_transaction_signature(transaction,
self.inputs[player],
self.all_sks[player])
for player in self.round.players.values()
}
transaction = self.coin.make_unsigned_transaction(
self.amount, self.fee, self.inputs, self.new_addresses,
self.changes)
for player in signatures:
self.messages.clear_packets()
self.messages.add_signatures(signatures[player])
self.round.inbox[self.messages.phases[self.round.phase]][
player] = self.messages.packets.SerializeToString()
self.round.process_verification_and_submission()
self.assertIsNotNone(self.round.tx)
self.assertTrue(self.round.done)
self.assertEquals(self.logchan.get(timeout=0),
"Player 1 got transction signatures")
self.assertEquals(self.logchan.get(timeout=0), "Player 1 done")
self.assertEquals(self.logchan.get(timeout=0),
"Player 1 complete protocol")
self.assertTrue(self.logchan.empty())
self.assertTrue(self.outchan.empty())
# Abnormal case
self.round.done = False
self.round.tx = None
transaction = self.coin.make_unsigned_transaction(
self.amount, self.fee, self.inputs, self.new_addresses,
self.changes)
signatures = {
player:
self.coin.get_transaction_signature(transaction,
self.inputs[player],
self.all_sks[player])
for player in self.round.players.values()
}
signatures[self.round.vk][self.inputs[self.round.vk][
self.public_keys[0]][0]] = signatures[self.round.vk][self.inputs[
self.round.vk][self.public_keys[0]][1]]
for player in signatures:
self.messages.clear_packets()
self.messages.add_signatures(signatures[player])
self.round.inbox[self.messages.phases[self.round.phase]][
player] = self.messages.packets.SerializeToString()
self.round.transaction = self.coin.make_unsigned_transaction(
self.amount, self.fee, self.inputs, self.new_addresses,
self.changes)
self.round.process_verification_and_submission()
self.assertEquals(self.logchan.get(timeout=0),
"Player 1 got transction signatures")
self.assertEquals(self.logchan.get(timeout=0),
"Blame: wrong transaction signature from player 1")
self.assertTrue(self.logchan.empty())
self.messages.packets.ParseFromString(self.outchan.get(timeout=0))
self.assertEquals(self.messages.get_blame_reason(),
self.messages.blame_reason("Invalid Signature"))
