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minting.py
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#!/usr/bin/env python3
# Copyright (c) 2019 The Platincoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
#
from test_framework.mininode import *
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
from test_framework.script import *
from test_framework.key import CECKey, CPubKey, sign_compact, recover_public_key
from test_framework.blocktools import create_coinbase, create_block
from minting_testcases import get_minting_testcases, BAD_REWARD_LIMIT_EXCEEDED
'''
MintingTest
'''
HAS_DEVICE_KEY = 0x00000001
HAS_BEN_KEY = 0x00000002
HAS_EXPIRATION_DATE = 0x00000004
HAS_MINTING_LIMIT = 0x00000008
HAS_OTHER_DATA = 0x00000800
FAST_MINTING = 0x00010000
TOTAL_PUBKEYS_COUNT_MASK = 0x0000f000
REQUIRED_PUBKEYS_COUNT_MASK = 0xf0000000
GENEZIS_PRIV_KEY0_HEX = 'b342f7905eafa2fc41286d56f0b72ca7e165bca230f202eb5fd20bb32cfa72ca'
GENEZIS_PRIV_KEY1_HEX = 'bfad79ac763e6fe95221fef9438c2d307b7c01f99ec9db8628971c6db44b94cf'
GUESS_SIGSIZES_MAX_ATTEMPTS = 5000
print_buffer = ''
def split_names(names_str):
names_list = names_str.split('+')
if '' in names_list:
names_list.remove('')
return names_list
def print_to_buffer(s):
global print_buffer
print_buffer += s
print_buffer += '\n'
# TestNode: bare-bones "peer".
class TestNode(SingleNodeConnCB):
def __init__(self):
SingleNodeConnCB.__init__(self)
self.reject_message = None
def add_connection(self, conn):
self.connection = conn
self.peer_disconnected = False
def on_close(self, conn):
self.peer_disconnected = True
def wait_for_disconnect(self):
def disconnected():
return self.peer_disconnected
return wait_until(disconnected, timeout=10)
def on_reject(self, conn, message):
self.reject_message = message
class MintingTest(BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 2
self.setup_clean_chain = True
self.genezis_key0 = CECKey()
self.genezis_key0.set_secretbytes(hex_str_to_bytes(GENEZIS_PRIV_KEY0_HEX))
if not self.genezis_key0.is_compressed():
self.genezis_key0.set_compressed(True)
self.virtual_cur_time_offset = 0
self.txmap = {}
self.seeds_for_keys = set()
self.user_keys = []
self.user_keys_m = None
self.ben_key = None
self.keys_count_required = None
self.keys_count_used = None
def add_options(self, parser):
parser.add_option("--runtestcase", dest="runtestcase", action="store", help="runtestcase")
parser.add_option("--mintalltestcases", dest="mintalltestcases", action="store", help="mint all testcases: run all test scenarios")
def setup_network(self):
self.nodes = []
self.nodes.append(start_node(0, self.options.tmpdir, ['-debug', '-whitelist=127.0.0.1']))
self.nodes.append(start_node(1, self.options.tmpdir, ['-debug']))
connect_nodes_bi(self.nodes, 0, 1)
node0 = self.nodes[0]
# Setup the p2p connections and start up the network thread.
self.test_node = TestNode()
connection = NodeConn('127.0.0.1', p2p_port(0), node0, self.test_node)
self.test_node.add_connection(connection)
NetworkThread().start()
self.test_node.wait_for_verack()
self.test_node.sync_with_ping()
def check_parameters(self, params):
assert (type(params['greenflag']) == type(True))
assert (type(params['ben_enabled']) == type(True))
assert (type(params['accepted']) == type(True))
assert (params['fee_user_percent'] == 'auto' or (params['fee_user_percent'] >= 0 and params['fee_user_percent'] <= 100))
assert ('ben' not in params['reward_to'] or params['ben_enabled'] == True) # if reward goes to ben, ben_enabled must be True
assert (params['refill_moneybox'] == 'script' or params['refill_moneybox'] == 'node' or params['refill_moneybox'] == 'random')
assert (params['keys_count_total'] >= 1 and params['keys_count_total'] <= 15)
if 'revoke_root_cert' in params:
assert (params['revoke_root_cert'] == True or params['revoke_root_cert'] == False)
if 'revoke_user_cert' in params:
assert (params['revoke_user_cert'] == True or params['revoke_user_cert'] == False)
if 'refill_moneybox_accepted' in params:
assert (params['refill_moneybox_accepted'] == True or params['refill_moneybox_accepted'] == False)
if 'green_flag_in_user_cert' in params:
assert (params['green_flag_in_user_cert'] == True or params['green_flag_in_user_cert'] == False)
if 'invalid_root_cert_ref' in params:
assert (params['invalid_root_cert_ref'] in [1,2,3,4,5,6])
if 'invalid_user_cert_ref' in params:
assert (params['invalid_user_cert_ref'] in [1,2,3,4,5])
if 'invalid_refill_moneybox' in params:
assert (params['invalid_refill_moneybox'] in [1,2,3,4,5])
if 'step2_enabled' in params and params['step2_enabled'] == True:
assert_equal(params['accepted'], True) # if step2 presents, step1 must be successful
assert_in('step2_wait_interval', params)
assert_in('step2_rewardamount', params)
assert_in('step2_reward_to', params)
assert_in('step2_accepted', params)
assert ('ben' not in params['step2_reward_to'] or params['ben_enabled'] == True) # if reward goes to ben, ben_enabled must be True
assert (type(params['step2_accepted']) == type(True))
if 'step3_enabled' in params and params['step3_enabled'] == True:
assert_equal(params['accepted'], True) # if step3 presents, step1 must be successful
assert_equal(params['step2_enabled'], True) # if step3 presents, step2 must present too
assert_equal(params['step2_accepted'], True) # if step3 presents, step2 must be successful
assert_in('step3_wait_interval', params)
assert_in('step3_rewardamount', params)
assert_in('step3_reward_to', params)
assert_in('step3_accepted', params)
assert ('ben' not in params['step3_reward_to'] or params['ben_enabled'] == True) # if reward goes to ben, ben_enabled must be True
assert (type(params['step3_accepted']) == type(True))
if 'keys_count_required' not in params or params['keys_count_required'] is None:
params['keys_count_required'] = 0
if params['keys_count_required'] == 'random':
params['keys_count_required'] = random.randint(1, params['keys_count_total'])
if params['keys_count_used'] == 'auto':
required = params['keys_count_required'] if params['keys_count_required'] > 0 else params['keys_count_total']
params['keys_count_used'] = required
def pay_to_address(self, address, amount, generate_block = True):
amount = ToCoins(amount)
node0 = self.nodes[0]
txid = node0.sendtoaddress(address, amount)
if generate_block:
blocks = node0.generate(1)
self.test_node.sync_with_ping()
block = node0.getblock(blocks[0])
blocktime = block['time']
assert_in(txid, block['tx']) # Ensure the transaction is accepted by the node and is included into a block
print('pay_to_address {} amount {}: height: {}, time: {}'.format(address, amount, block['height'], blocktime))
else:
# Ensure our transaction is accepted by the node and is included into mempool:
self.test_node.sync_with_ping()
mempool = node0.getrawmempool()
assert_in(txid, mempool)
blocktime = None
tx = node0.getrawtransaction(txid, True)
outputindex = -1
for i, vout in enumerate(tx['vout']):
if vout['value'] == amount:
outputindex = vout['n']
assert_equal(i, vout['n'])
break
assert (outputindex != -1)
self.txmap[txid] = tx
return (COutPoint(int(txid, 16), outputindex), blocktime)
def get_multisig_script(self, keys, keys_count_unlock):
multisigscript = CScript([keys_count_unlock])
for key in keys:
multisigscript += key.get_pubkey()
multisigscript += len(keys)
multisigscript += CScriptOp(OP_CHECKMULTISIG)
return multisigscript
def pay_to_multisig_address(self, keys, amount, keys_count_unlock, generate_block = True):
multisigscript = self.get_multisig_script(keys, keys_count_unlock)
address = ScriptAddress(multisigscript)
pubkeys_hex = [bytes_to_hex_str(key.get_pubkey()) for key in keys]
print('pay_to_multisig_address, keys count total: {}, keys count unlock: {}, pubkeys: {}, multisigscript ({}): {}, address: {}, amount: {}'.format(
len(keys), keys_count_unlock, pubkeys_hex, len(multisigscript), bytes_to_hex_str(multisigscript), address, amount))
return self.pay_to_address(address, amount, generate_block)
def get_unique_rand_for_key(self):
while True:
n = random.randint(0, 0xffffffff)
if n in self.seeds_for_keys:
continue
self.seeds_for_keys.add(n)
return n
def create_key(self, key_name, cert_name = None, print_func = print):
predefined_keys = \
{
# For debug, to use given keys to reproduce exactly like in log:
# ('user_key_0', 'root_cert'): 1586207744,
# ('user_key_0', 'ca3_cert'): 2768265604,
# ('user_key_1', 'ca3_cert'): 2366347457,
}
if (key_name, cert_name) in predefined_keys:
n = predefined_keys[(key_name, cert_name)]
self.seeds_for_keys.add(n)
else:
n = self.get_unique_rand_for_key()
key = CECKey()
key.set_secretbytes(struct.pack(b"<I", n) * 8)
if not key.is_compressed():
key.set_compressed(True)
pubkey = key.get_pubkey()
print_func('Details for {} in {}: n: {}, pubkey ({}): {}, pubkeyhash: {}, address: {}, priv_key: {}'.
format(key_name, cert_name, n, len(pubkey), bytes_to_hex_str(pubkey), bytes_to_hex_str(reverse(hash160(pubkey))),
AddressFromPubkey(pubkey), bytes_to_hex_str(key.get_secret())))
return key
def create_other_keys(self, count, name, cert_name = None):
other_keys = []
for i in range(count):
other_keys.append(self.create_key(name + '_' + str(i), cert_name))
return other_keys
def create_cert(self, utxo_coins, amount, parent_key, keys_count_total, keys_count_required, green_flag, has_device, has_ben, cert_name,
user_keys_to_use = None, alt_dest_pubkeyhash = None, exp_date_offset = None, mint_limit = None):
bestblockhash = self.nodes[0].getbestblockhash()
block_time = self.nodes[0].getblock(bestblockhash)['time'] + 1
assert_greater_than(keys_count_total, 0)
node0 = self.nodes[0]
parent_pubkey_bin = parent_key.get_pubkey()
pubkeyhash = hash160(parent_pubkey_bin)
user_keys = []
dev_key = CECKey()
ben_key = CECKey()
if user_keys_to_use is None:
for i in range(keys_count_total):
user_key = self.create_key('user_key_{}'.format(i), cert_name)
user_keys.append(user_key)
else:
assert_equal(len(user_keys_to_use), keys_count_total)
user_keys = user_keys_to_use
flags = 0
if green_flag:
flags |= FAST_MINTING
if has_device:
flags |= HAS_DEVICE_KEY
if has_ben:
flags |= HAS_BEN_KEY
if exp_date_offset is not None:
flags |= HAS_EXPIRATION_DATE
if mint_limit is not None:
flags |= HAS_MINTING_LIMIT
flags |= ((keys_count_total << 12) & TOTAL_PUBKEYS_COUNT_MASK)
if keys_count_required is not None:
assert_greater_than(keys_count_required, 0)
flags |= ((keys_count_required << 28) & REQUIRED_PUBKEYS_COUNT_MASK)
block1 = bytearray(struct.pack(b"<I", flags))
for user_key in user_keys:
user_pubkeyhash = hash160(user_key.get_pubkey())
block1.extend(user_pubkeyhash)
if has_device:
dev_key = self.create_key('dev_key', cert_name)
dev_pubkeyhash = hash160(dev_key.get_pubkey())
block1.extend(dev_pubkeyhash)
if has_ben:
ben_key = self.create_key('ben_key', cert_name)
ben_pubkeyhash = hash160(ben_key.get_pubkey())
block1.extend(ben_pubkeyhash)
if exp_date_offset is not None:
block1.extend(struct.pack(b"<I", block_time + exp_date_offset))
if mint_limit is not None:
block1.extend(struct.pack(b"<q", mint_limit))
block1_hash = hash256(block1)
# block2 = parent_key.sign(block1_hash)
block2 = sign_compact(block1_hash, parent_key.get_secret())
dest_pubkeyhash = alt_dest_pubkeyhash if alt_dest_pubkeyhash is not None else pubkeyhash
scriptOutPKH = CScript([block1, block2, OP_2DROP, OP_DUP, OP_HASH160, dest_pubkeyhash, OP_EQUALVERIFY, OP_CHECKSIG])
tx2 = CTransaction()
tx2.vin.append(CTxIn(utxo_coins, b"", 0xffffffff))
tx2.vout.append(CTxOut(ToSatoshi(amount), scriptOutPKH))
scriptPubKey = GetP2PKHScript(pubkeyhash)
(sig_hash, err) = SignatureHash(scriptPubKey, tx2, 0, SIGHASH_ALL)
assert (err is None)
signature = parent_key.sign(sig_hash) + bytes(bytearray([SIGHASH_ALL]))
tx2.vin[0].scriptSig = CScript([signature, parent_pubkey_bin])
tx2.rehash()
print('cert {}: tx2.hash: {}, scriptPubKey ({}): {}, block1_hash: {}, parent_pubkey: {}, parent_pubkeyhash: {}, parent_privkey: {}, signature ({}): {}, amount: {}, block_time: {}, exp_date_offset: {}, mint_limit: {}'.
format(cert_name, tx2.hash, len(scriptOutPKH), bytes_to_hex_str(scriptOutPKH),
bytes_to_hex_str(reverse(block1_hash)), bytes_to_hex_str(parent_key.get_pubkey()),
bytes_to_hex_str(reverse(hash160(parent_key.get_pubkey()))), bytes_to_hex_str(parent_key.get_secret()),
len(signature), bytes_to_hex_str(signature), amount, block_time, exp_date_offset, mint_limit))
tx2_full = tx2.serialize()
print('tx2 full ({}): {}'.format(len(tx2_full), bytes_to_hex_str(tx2_full)))
height = self.nodes[0].getblockcount() + 1
block = create_block(int(bestblockhash, 16), create_coinbase(height), block_time)
block.vtx.extend([tx2])
block.hashMerkleRoot = block.calc_merkle_root()
block.solve()
block_message = msg_block(block)
self.test_node.send_message(block_message)
self.test_node.sync_with_ping()
new_best_hash = node0.getbestblockhash()
last_block = node0.getblock(new_best_hash)
assert_equal(self.nodes[0].getblockcount(), height)
assert (bestblockhash != new_best_hash)
# Ensure our transaction is accepted by the node and is included into a block:
assert_in(tx2.hash, last_block['tx'])
self.txmap[tx2.hash] = tx2
return (user_keys, dev_key, ben_key, COutPoint(tx2.sha256, 0), last_block['time'])
def emulate_fast_wait(self, time_seconds, timepoint_from = None, description = None):
generate_period = 90
while time_seconds // generate_period > 100:
generate_period *= 2
return self.emulate_wait(time_seconds, timepoint_from, description, generate_period)
def emulate_wait(self, time_seconds, timepoint_from = None, description = None, generate_period = 90):
time_seconds_orig = time_seconds
start_wait_time_real = int(time.time())
start_wait_time_virt = start_wait_time_real + self.virtual_cur_time_offset
if timepoint_from is not None:
time_seconds += (timepoint_from - start_wait_time_virt)
blocks = time_seconds // generate_period
print('will wait {} seconds (before correction {} seconds), generate_period: {}, blocks: {}, start_wait_time_virt: {}, virtual_cur_time_offset: {}, timepoint_from: {}, description: {}'.
format(time_seconds, time_seconds_orig, generate_period, blocks, start_wait_time_real + self.virtual_cur_time_offset, self.virtual_cur_time_offset, timepoint_from, description))
if time_seconds <= 0:
# after correction wait time may become negative - ignore it
assert_greater_than_or_equal(time_seconds_orig, 0)
return
self.nodes[0].setmocktime(start_wait_time_virt)
self.nodes[1].setmocktime(start_wait_time_virt)
if time_seconds > 0:
self.nodes[0].generate(1)
for i in range(blocks):
step = generate_period if i > 0 else generate_period + (time_seconds % generate_period)
self.virtual_cur_time_offset += step
self.nodes[0].setmocktime(start_wait_time_real + self.virtual_cur_time_offset)
self.nodes[1].setmocktime(start_wait_time_real + self.virtual_cur_time_offset)
blockhashes = self.nodes[0].generate(1)
print('wait, block {} time: {}'.format(i, self.nodes[0].getblock(blockhashes[0])['time']))
sync_chain(self.nodes)
self.test_node.sync_with_ping()
def get_utxo(self, address, from_conf = 6, to_conf = 9999999):
# find utxos with the help of the second node:
sync_chain(self.nodes)
node1 = self.nodes[1]
print('will import address {}...'.format(address))
node1.importaddress(address)
return node1.listunspent(from_conf, to_conf, [address])
def get_extra_moneybox_inputs_count(self, params):
if 'extra_moneybox_inputs_count' in params:
return params['extra_moneybox_inputs_count']
return 0
def get_moneybox_outputs_names(self, params):
if 'moneybox_change_dest' in params:
return split_names(params['moneybox_change_dest'])
return ['moneybox']
def get_dest_scriptpubkey(self, dest_output, print_func = print):
if dest_output == 'moneybox':
return GetP2SHMoneyboxScript()
elif dest_output == 'user':
multisig_script = self.get_multisig_script(self.user_keys, self.keys_count_used)
return GetP2SHScript(hash160(multisig_script))
elif dest_output == 'user_shuffled':
assert_greater_than(len(self.user_keys), 1)
keys_shuffled = [key for key in self.user_keys]
while keys_shuffled == self.user_keys:
random.shuffle(keys_shuffled)
multisig_script = self.get_multisig_script(keys_shuffled, self.keys_count_used)
return GetP2SHScript(hash160(multisig_script))
elif dest_output == 'user_pure_multisig':
return self.get_multisig_script(self.user_keys, self.keys_count_used)
elif dest_output == 'ben':
return GetP2PKHScript(hash160(self.ben_key.get_pubkey()))
elif dest_output == 'other_p2pkh' or dest_output == 'other':
other_key = self.create_key('other_p2pkh', print_func = print_func)
return GetP2PKHScript(hash160(other_key.get_pubkey()))
elif dest_output == 'other_p2sh':
other_key = self.create_key('other_p2sh', print_func = print_func)
return GetP2SHScript(hash160(other_key.get_pubkey()))
elif dest_output == 'op_true':
return CScript([OP_TRUE])
elif dest_output == 'op_false':
return CScript([OP_FALSE])
else:
raise AssertionError('invalid dest_output: {}'.format(dest_output))
def appent_moneybox_outputs_to_tx(self, tx3, amount, params, print_func = print):
moneybox_change_dest = self.get_moneybox_outputs_names(params)
moneybox_outputs_count = len(moneybox_change_dest)
amount_to_each = ToSatoshi(amount) // moneybox_outputs_count if moneybox_outputs_count > 0 else 0
amount_sum = 0
for i, dest_output in enumerate(moneybox_change_dest):
amount_chunk = amount_to_each if i + 1 < moneybox_outputs_count else (ToSatoshi(amount) - amount_sum)
amount_sum += amount_chunk
tx3.vout.append(CTxOut(ToSatoshi(amount_chunk), self.get_dest_scriptpubkey(dest_output, print_func)))
if dest_output == 'moneybox':
print_func('tx3 vout[{}] moneybox: {}'.format(len(tx3.vout) - 1, ToCoins(amount_chunk)))
else:
print_func('tx3 vout[{}] pseudo-moneybox: {}, dest_output: {}'.format(len(tx3.vout) - 1, ToCoins(amount_chunk), dest_output))
def get_user_outputs_names(self, params):
if 'user_outputs_dest' in params:
return split_names(params['user_outputs_dest'])
return ['user']
def appent_user_outputs_to_tx(self, tx3, amount, params, print_func = print):
user_outputs_dest = self.get_user_outputs_names(params)
user_outputs_cnt = len(user_outputs_dest)
amount_to_each = ToSatoshi(amount) // user_outputs_cnt if user_outputs_cnt > 0 else 0
amount_sum = 0
vout_indexes = []
for i, dest_output in enumerate(user_outputs_dest):
amount_chunk = amount_to_each if i+1 < user_outputs_cnt else (ToSatoshi(amount) - amount_sum)
amount_sum += amount_chunk
tx3.vout.append(CTxOut(amount_chunk, self.get_dest_scriptpubkey(dest_output, print_func)))
vout_indexes.append(len(tx3.vout) - 1)
if dest_output == 'user':
print_func('tx3 vout[{}] user_output: {}'.format(len(tx3.vout) - 1, ToCoins(amount_chunk)))
else:
print_func('tx3 vout[{}] pseudo_user_output: {}, dest_output: {}'.format(len(tx3.vout) - 1, ToCoins(amount_chunk), dest_output))
return vout_indexes
def get_all_reward_outputs_names(self, params):
if 'reward_to' in params:
return split_names(params['reward_to'])
return ['user']
''' Return real outputs names, excluding 'user', because reward to user doesn't create separate outputs '''
def get_real_reward_outputs_names(self, params):
names = self.get_all_reward_outputs_names(params)
return [x for x in names if x != 'user']
def appent_reward_outputs_to_tx(self, tx3, amount, params, user_output_index, print_func = print):
reward_outputs_dest = self.get_all_reward_outputs_names(params)
reward_outputs_cnt = len(reward_outputs_dest)
amount_to_each = ToSatoshi(amount) // reward_outputs_cnt if reward_outputs_cnt > 0 else 0
amount_sum = 0
reward_add_to_user_output = 0
for i, dest_output in enumerate(reward_outputs_dest):
amount_chunk = amount_to_each if i+1 < reward_outputs_cnt else (ToSatoshi(amount) - amount_sum)
amount_sum += amount_chunk
if dest_output == 'user':
# add amount to existing user output, don't append output to transaction:
reward_add_to_user_output += amount_chunk
if user_output_index != -1:
tx3.vout[user_output_index].nValue += ToSatoshi(amount_chunk)
print_func('adding reward amount {} to existing user_output {}, now {}'.format(
ToCoins(amount_chunk), user_output_index, ToCoins(tx3.vout[user_output_index].nValue)))
else:
tx3.vout.append(CTxOut(ToSatoshi(amount_chunk), self.get_dest_scriptpubkey(dest_output, print_func)))
print_func('tx3 vout[{}] reward_output: {}, reward_to: {}'.format(len(tx3.vout) - 1, ToCoins(amount_chunk), dest_output))
def get_bytes_in_tx_inputs(self, tx, start_index, count):
bytes_cnt = 0
for i in range(start_index, start_index + count):
bytes_cnt += len(tx.vin[i].serialize())
return bytes_cnt
def mint(self, user_inputs, utxo_cert_root, utxo_cert_ca3, rewardamount, reward_to, accepted, params):
skip_checks = False
p2sh_like_dests = set(['user', 'user_shuffled', 'moneybox', 'other_p2sh'])
p2pkh_like_dests = set(['ben', 'other', 'other_p2pkh'])
moneybox_outputs_names = self.get_moneybox_outputs_names(params)
user_outputs_names = self.get_user_outputs_names(params)
rewadr_real_output_names = self.get_real_reward_outputs_names(params)
if len(moneybox_outputs_names) == 0 or set.union(set(moneybox_outputs_names), p2sh_like_dests) != p2sh_like_dests:
# if no moneybox outputs (first condition) or at least one output is not p2sh-like (second condition),
# skip checks, this is non-standard transaction:
skip_checks = True
if len(user_outputs_names) == 0 or set.union(set(user_outputs_names), p2sh_like_dests) != p2sh_like_dests:
# if no user outputs (first condition) or at least one output is not p2sh-like (second condition),
# skip checks, this is non-standard transaction:
skip_checks = True
if set.union(set(rewadr_real_output_names), p2pkh_like_dests) != p2pkh_like_dests:
# if at least one reward output is not p2pkh-like, skip checks, because we consider all outputs are p2pkh-like:
skip_checks = True
if skip_checks:
print('skip_checks == True')
if self.user_keys_m is None:
# In regular workflow user_keys_m and user_keys are the same, but in some special case they may be different.
self.user_keys_m = self.user_keys
fee_total_given = params['fee_total']
fee_user_percent_orig = 0 \
if params['fee_user_percent'] == 'auto' and (reward_to == 'user' or reward_to == 'ben') \
else params['fee_user_percent']
node0 = self.nodes[0]
multisig_script = self.get_multisig_script(self.user_keys, self.keys_count_used)
moneybox_inputs = self.get_utxo(MoneyboxP2SHAddress())
assert_greater_than(len(user_inputs), 0)
assert_greater_than(len(moneybox_inputs), 0)
attemps = 0
total_delta_user = 0 # accumulated difference between real and guessed sizes of tx user bytes (for statistics analysis)
total_delta_moneybox = 0 # accumulated difference between real and guessed sizes of tx moneybox bytes (for statistics analysis)
while True:
# will use print_to_buffer() instead of print() function inside this loop,
# because we need to print only successful (last) attempt of composing transaction:
global print_buffer
print_buffer = ''
tx3 = CTransaction()
user_amount = Decimal('0')
reward_to_ben = ToCoins(rewardamount)
reward_change = Decimal('0')
reward_taken = Decimal('0')
extra_moneybox_inputs_count = self.get_extra_moneybox_inputs_count(params)
moneybox_inputs_enough = False
for user_input in user_inputs:
tx3.vin.append(CTxIn(user_input, multisig_script, 0xffffffff))
user_input_hash_hex = hashToHex(user_input.hash)
assert_in(user_input_hash_hex, self.txmap)
tx_prev = self.txmap[user_input_hash_hex]
print_to_buffer('tx_prev: {}'.format(tx_prev))
assert_equal(tx_prev['vout'][user_input.n]['n'], user_input.n)
amount = tx_prev['vout'][user_input.n]['value']
user_amount += amount
print_to_buffer('tx3 vin[{}] user_input amount: {}'.format(len(tx3.vin)-1, amount))
for moneybox_input in moneybox_inputs:
if moneybox_input['amount'] < 10:
print_to_buffer('skipped moneybox entry {}:{} with amount {}'.format(moneybox_input['txid'], moneybox_input['vout'], moneybox_input['amount']))
continue # Lets take full moneybox entries
tx3.vin.append(CTxIn(COutPoint(int(moneybox_input['txid'], 16), moneybox_input['vout']), hex_str_to_bytes(moneybox_input['scriptPubKey']), 0xffffffff))
reward_taken += moneybox_input['amount']
print_to_buffer('tx3 vin[{}] moneybox_input amount: {}'.format(len(tx3.vin)-1, moneybox_input['amount']))
if reward_taken > reward_to_ben:
if extra_moneybox_inputs_count > 0:
extra_moneybox_inputs_count -= 1
else:
reward_change = reward_taken - reward_to_ben
moneybox_inputs_enough = True
break
assert_equal(moneybox_inputs_enough, True)
relayfee = node0.getnetworkinfo()['relayfee'] # (numeric) minimum relay fee for non-free transactions in PLC/kB
SIGNATURE_SIZE_MIN = 71 # signature is appr 71-72 bytes (with the last byte SIGHASH_TYPE)
SIGNATURE_SIZE_MAX = 72
PUBKEY_SIZE = 33
TXID_SIZE = 32
HASH160_SIZE = 20
INPUT_BYTES_BESIDES_SCRIPTSIG = (
32 + # hash
4 + # n
1 + # scriptSigLen
4 # nSequence
)
P2PKH_OUTPUT_BYTES = (
8 + # nValue
1 + # scriptPubkeyLen
HASH160_SIZE + 5
)
P2SH_OUTPUT_BYTES = (
8 + # nValue
1 + # scriptPubkeyLen
HASH160_SIZE + 3
)
COMMON_BYTES = (
4 + # tx version
1 + # inputs count (VarInt)
1 + # outputs count (VarInt)
4 # nLockTime
)
def get_scriptsig_bytes_cnt_in_user_input(keys_cnt, multisig_script_len):
# 1 + (SIGNATURE_SIZE + 1) * keys_count_used + len(multisig_script) + 1 + x + (2 if too_long else 0)
sig_lens_list = [random.randint(SIGNATURE_SIZE_MIN, SIGNATURE_SIZE_MAX) + 1 for _ in range(keys_cnt)]
sig_lens_sum = sum(sig_lens_list)
body_len = sig_lens_sum + multisig_script_len + 2
if multisig_script_len > 0xff:
body_len += 2 # OP_PUSHDATA2 then multisig_script_len
elif multisig_script_len > 0x4b:
body_len += 1 # OP_PUSHDATA1 then multisig_script_len
if body_len > 252:
return body_len + 2
return body_len
def get_scriptsig_bytes_cnt_in_moneybox_input(keys_cnt):
# (SIGNATURE_SIZE + 1 + PUBKEY_SIZE + 1) * keys_count_used + TXID_SIZE + 2 + TXID_SIZE + 2 + 2 + (2 if too_long else 0)
sig_lens_list = [random.randint(SIGNATURE_SIZE_MIN, SIGNATURE_SIZE_MAX) + PUBKEY_SIZE + 2 for _ in range(keys_cnt)]
sig_lens_sum = sum(sig_lens_list)
body_len = sig_lens_sum + TXID_SIZE + 1 + 1 + TXID_SIZE + 1 + 1 + 2
if body_len > 252:
return body_len + 2
return body_len
assert_equal(len(multisig_script), 3 + (PUBKEY_SIZE + 1) * len(self.user_keys))
user_inputs_lens_list = [get_scriptsig_bytes_cnt_in_user_input(self.keys_count_used, len(multisig_script)) + INPUT_BYTES_BESIDES_SCRIPTSIG for _ in range(len(user_inputs))]
user_inputs_lens_sum = sum(user_inputs_lens_list)
moneybox_inputs_lens_list = [get_scriptsig_bytes_cnt_in_moneybox_input(self.keys_count_used) + INPUT_BYTES_BESIDES_SCRIPTSIG for _ in range(len(tx3.vin) - len(user_inputs))]
moneybox_inputs_lens_sum = sum(moneybox_inputs_lens_list)
bytes_user_part = user_inputs_lens_sum + \
len(self.get_user_outputs_names(params)) * P2SH_OUTPUT_BYTES + \
len(self.get_real_reward_outputs_names(params)) * P2PKH_OUTPUT_BYTES
bytes_moneybox_part = moneybox_inputs_lens_sum + \
len(self.get_moneybox_outputs_names(params)) * P2SH_OUTPUT_BYTES
tx_size = bytes_user_part + bytes_moneybox_part + COMMON_BYTES
# will take (relayfee * 5)
total_fee_calculated = Decimal(tx_size) * relayfee * 5 / Decimal(1000)
if fee_user_percent_orig == 'auto':
# We decided to consider COMMON_BYTES as user part of transaction:
fee_user_percent = Decimal(bytes_user_part + COMMON_BYTES) / Decimal(tx_size)
else:
fee_user_percent = Decimal(fee_user_percent_orig) / 100
assert(fee_user_percent >= 0 and fee_user_percent <= 1)
total_fee = ToCoins(fee_total_given) if fee_total_given != 'auto' else total_fee_calculated
fee_user = total_fee * fee_user_percent
fee_moneybox = total_fee * (1 - fee_user_percent)
print_to_buffer('mint: fee calculation: relayfee: {}, bytes_user_part: {}, bytes_moneybox_part: {}, total_fee_calculated: {}, total_fee: {}, fee_user_percent: {}'.
format(relayfee, bytes_user_part, bytes_moneybox_part, total_fee_calculated, total_fee, fee_user_percent))
# append user_outputs to tx:
user_outputs_indexes = self.appent_user_outputs_to_tx(tx3, user_amount, params, print_to_buffer)
user_output_index = -1 if len(user_outputs_indexes) == 0 else user_outputs_indexes[-1]
# append reward_outputs to tx:
reward_payed = reward_to_ben - fee_user
if len(self.get_real_reward_outputs_names(params)) > 0:
# if reward is payed to separate output(s), must be (reward > fee_user)
assert_greater_than(reward_to_ben, fee_user)
print_to_buffer('reward_payed: {}, reward_to_ben: {}, fee_user: {}'.format(ToCoins(reward_payed), reward_to_ben, ToCoins(fee_user)))
self.appent_reward_outputs_to_tx(tx3, reward_payed, params, user_output_index, print_to_buffer)
# append moneybox_outputs to tx:
reward_change_orig = reward_change
reward_change -= fee_moneybox
print_to_buffer('moneybox change (reward_change_orig - fee_moneybox): {}, reward_change_orig: {}, fee_moneybox: {}'.
format(ToCoins(reward_change), reward_change_orig, ToCoins(fee_moneybox)))
self.appent_moneybox_outputs_to_tx(tx3, reward_change, params, print_to_buffer)
total_fee_real = ToSatoshi(user_amount + reward_taken)
for vout in tx3.vout:
assert_greater_than(total_fee_real, ToSatoshi(vout.nValue))
total_fee_real -= ToSatoshi(vout.nValue)
print_to_buffer('mint, total_fee_real (after correction): {}'.format(ToCoins(total_fee_real)))
if not skip_checks:
assert_greater_than_or_equal(1, abs(total_fee_real - ToSatoshi(total_fee))) # assumed fee and real fee may differ on 1 satoshi due to fractional number truncation
def select_keys(keys, count, indexes = None):
assert_greater_than_or_equal(len(keys), count)
if indexes is None:
indexes = []
while len(indexes) < count:
next = random.randint(0, len(keys) - 1)
if next not in indexes:
indexes.append(next)
indexes.sort()
else:
assert_equal(len(indexes), count)
ret_keys = []
for i in indexes:
ret_keys.append(keys[i])
return (ret_keys, indexes)
(used_user_keys, indexes) = select_keys(self.user_keys, self.keys_count_used)
(used_user_keys_m, _) = select_keys(self.user_keys_m, self.keys_count_used, indexes)
print_to_buffer('indexes for used_keys ({}): {}'.format(len(indexes), indexes))
for i in range(len(user_inputs)):
scriptSig = CScript([OP_0])
(sig_hash, err) = SignatureHash(CScript(tx3.vin[i].scriptSig), tx3, i, SIGHASH_ALL)
assert (err is None)
for user_key in used_user_keys:
signature = user_key.sign(sig_hash) + bytes(bytearray([SIGHASH_ALL]))
scriptSig += signature
print_to_buffer('mint, user input {}, pubkey: {}, signature ({}): {}'.format(i, bytes_to_hex_str(user_key.get_pubkey()), len(signature), bytes_to_hex_str(signature)))
scriptSig += multisig_script
tx3.vin[i].scriptSig = scriptSig
print_to_buffer('mint, user input {}, sig_hash ({}): {}, scriptSig ({}): {}'.format(
i, len(sig_hash), bytes_to_hex_str(reverse(sig_hash)), len(scriptSig), bytes_to_hex_str(scriptSig)))
for i in range(len(user_inputs), len(tx3.vin)):
# There are no common rules of composing signature for p2sh transaction inputs,
# we made agreement to replace scriptSig with inner script (CScript(OP_CHECKREWARD)), not
# with the public key script of the referenced transaction output
# (excluding all occurences of OP CODESEPARATOR in it), as for p2pkh transactions:
scriptSig = CScript([OP_CHECKREWARD])
(sig_hash, err) = SignatureHash(scriptSig, tx3, i, SIGHASH_ALL)
assert (err is None)
signatures_and_keys = []
for user_key in used_user_keys_m:
signature = user_key.sign(sig_hash) + bytes(bytearray([SIGHASH_ALL]))
signatures_and_keys.append(signature)
signatures_and_keys.append(user_key.get_pubkey())
tx3.vin[i].scriptSig = CScript(signatures_and_keys +
[ ser_uint256(utxo_cert_root.hash), utxo_cert_root.n,
ser_uint256(utxo_cert_ca3.hash), utxo_cert_ca3.n,
CScript([OP_CHECKREWARD])])
signatures_and_keys_hex = [bytes_to_hex_str(item) for item in signatures_and_keys]
print_to_buffer('mint, moneybox input {}, sig_hash ({}): {}, keys_count_used: {}, signatures_and_keys: {}, scriptSig ({}): {}'.format(
i, len(sig_hash), bytes_to_hex_str(reverse(sig_hash)),
self.keys_count_used, signatures_and_keys_hex,
len(tx3.vin[i].scriptSig), bytes_to_hex_str(tx3.vin[i].scriptSig)))
user_bytes_real = self.get_bytes_in_tx_inputs(tx3, 0, len(user_inputs))
moneybox_bytes_real = self.get_bytes_in_tx_inputs(tx3, len(user_inputs), len(tx3.vin) - len(user_inputs))
if user_bytes_real == user_inputs_lens_sum and moneybox_bytes_real == moneybox_inputs_lens_sum:
print('Guessed signature sizes, user_bytes: {}, moneybox_bytes: {}'.format(user_bytes_real, moneybox_bytes_real))
print(print_buffer, end='')
break
attemps += 1
total_delta_user += (user_bytes_real - user_inputs_lens_sum)
total_delta_moneybox += (moneybox_bytes_real - moneybox_inputs_lens_sum)
print('Didn\'t guess signature sizes, attemps: {}, user_bytes_real: {}, user_bytes_guessed: {}, mb_bytes_real: {}, mb_bytes_guessed: {}, total_delta_user: {}, total_delta_mb: {}'.
format(attemps, user_bytes_real, user_inputs_lens_sum, moneybox_bytes_real, moneybox_inputs_lens_sum, total_delta_user, total_delta_moneybox))
assert_greater_than(GUESS_SIGSIZES_MAX_ATTEMPTS, attemps) # if we didn't guess in GUESS_SIGSIZES_MAX_ATTEMPTS attempts, something goes wrong
tx3.rehash()
print('tx3.hash: {}, multisig_script ({}): {}'.format(tx3.hash, len(multisig_script), bytes_to_hex_str(multisig_script)))
tx_message = msg_tx(tx3)
tx_message_bytes = tx_message.serialize()
tx_real_size = len(tx_message_bytes)
print('tx_size: {}, hex tx3: {}'.format(tx_real_size, bytes_to_hex_str(tx_message_bytes)))
if not skip_checks:
assert_equal(tx_real_size, tx_size)
self.test_node.send_message(tx_message)
self.test_node.sync_with_ping()
# Ensure our transaction is accepted by the node and is included into mempool:
mempool = node0.getrawmempool()
assert_equal(tx3.hash in mempool, accepted)
if accepted == False:
error = params['error'] if 'error' in params else None
if error is not None and error[0] is not None:
assert_equal(self.test_node.reject_message.code, error[0])
if error is not None and error[1] is not None:
assert_startswith(self.test_node.reject_message.reason.decode('ascii'), error[1])
return (tx3.hash, user_outputs_indexes, ToSatoshi(reward_taken - reward_change), ToSatoshi(reward_payed))
def refill_moneybox(self, amount, params, parent_hash = None, parent_block = None, skip_transactions = []):
active = (params['refill_moneybox'] == 'script') or (params['refill_moneybox'] == 'random' and random.randint(0, 1) == 0)
invalid_refill_moneybox = params['invalid_refill_moneybox'] if 'invalid_refill_moneybox' in params else None
refill_moneybox_dest_list = split_names(params['refill_moneybox_dest']) if 'refill_moneybox_dest' in params else None
refill_moneybox_accepted = params['refill_moneybox_accepted'] if 'refill_moneybox_accepted' in params else True
print('will refill_moneybox, amount: {}, active: {}, refill_moneybox_accepted: {}'.format(amount, active, refill_moneybox_accepted))
if invalid_refill_moneybox is not None:
print('invalid_refill_moneybox: {}'.format(invalid_refill_moneybox))
if refill_moneybox_dest_list is not None:
assert_equal(len(refill_moneybox_dest_list), 1) # only one destination is supported
print('refill_moneybox_dest_list ({}): {}'.format(len(refill_moneybox_dest_list), refill_moneybox_dest_list))
node0 = self.nodes[0]
if active:
# We compose a new block and refill money-box, and then ensure the node accepts this block:
self.test_node.sync_with_ping()
if parent_hash is None:
parent_hash = node0.getbestblockhash()
if parent_block is None:
parent_block = node0.getblock(parent_hash)
print('parent_block: {}'.format(parent_block))
assert_equal(parent_hash, parent_block['hash'])
block = CBlock()
block.nVersion = parent_block['version']
block.hashPrevBlock = int(parent_hash, 16)
block.nTime = parent_block['time'] + 1
block.nBits = int(parent_block['bits'], 16)
height = parent_block['height'] + 1
if invalid_refill_moneybox is None and refill_moneybox_dest_list is None:
# regular workflow:
coinbase = create_coinbase(height, None, 0, ToSatoshi(amount))
elif invalid_refill_moneybox == 1:
coinbase = create_coinbase(height, None, 0, 0)
elif invalid_refill_moneybox == 2:
coinbase = create_coinbase(height, None, 0, ToSatoshi(amount) - 1)
elif invalid_refill_moneybox == 3:
coinbase = create_coinbase(height, None, 0, ToSatoshi(amount) + 1)
elif invalid_refill_moneybox == 4:
coinbase = create_coinbase(height, None, 0, ToSatoshi(amount), granularity = 5 * COIN)
elif invalid_refill_moneybox == 5:
coinbase = create_coinbase(height, None, 0, ToSatoshi(amount), granularity = 15 * COIN)
elif len(refill_moneybox_dest_list) == 1:
coinbase = create_coinbase(height, None, 0, ToSatoshi(amount),
moneyboxscript = self.get_dest_scriptpubkey(refill_moneybox_dest_list[0]))
else:
assert (0)
block.vtx.append(coinbase)
mempool = node0.getrawmempool()
for txid in mempool:
if txid not in skip_transactions:
tx = FromHex(CTransaction(), node0.getrawtransaction(txid))
block.vtx.append(tx)
print('tx from mempool {}: added to block'.format(txid))
else:
print('tx from mempool {}: skipped'.format(txid))
block.hashMerkleRoot = block.calc_merkle_root()
block.nNonce = random.randint(0,0xffff)
block.solve()
self.test_node.send_and_ping(msg_block(block))
print('bestblockhash: {}, block.hash: {}, refill_moneybox_accepted: {}'.format(node0.getbestblockhash(), block.hash, refill_moneybox_accepted))
assert_equal(int(node0.getbestblockhash(), 16) == block.sha256, refill_moneybox_accepted)
return block.hash
else:
# We tell the node to generate a new block, and then ensure that money-box is refilled with expected amount:
assert_equal(len(skip_transactions), 0) # if we want to skip transactions, we must generate a new block ourselves, not by node
node0.generate(1)
self.test_node.sync_with_ping()
best_hash = node0.getbestblockhash()
last_block = node0.getblock(best_hash)
amount_got = Decimal(0)
txid0 = last_block['tx'][0]
txraw0 = node0.getrawtransaction(txid0)
tx0 = node0.decoderawtransaction(txraw0)
moneybox_script_hex = bytes_to_hex_str(GetP2SHMoneyboxScript())
for i, vout in enumerate(tx0['vout']):
scriptPubKey = vout['scriptPubKey']['hex']
if i == 0:
assert(scriptPubKey != moneybox_script_hex)
continue
if hex_str_to_bytes(scriptPubKey)[0] == int(OP_RETURN):
continue
if i != 0:
assert_equal(scriptPubKey, moneybox_script_hex)
amount_got += vout['value']
print('amount expected: {}, amount got: {}, refill_moneybox_accepted: {}'.format(
ToCoins(amount), ToCoins(amount_got), refill_moneybox_accepted))
assert_equal(ToSatoshi(amount_got) == ToSatoshi(amount), refill_moneybox_accepted)
return best_hash
def spend_utxo(self, utxo, key):
utxo_hash_hex = hashToHex(utxo.hash)
assert_in(utxo_hash_hex, self.txmap)
prevtx = self.txmap[utxo_hash_hex]
assert_greater_than(len(prevtx.vout), utxo.n)
amount = prevtx.vout[utxo.n].nValue
amount_orig = amount
amount -= ToSatoshi('0.01')
prevScriptPubKey = prevtx.vout[utxo.n].scriptPubKey
tx4 = CTransaction()
tx4.vin.append(CTxIn(utxo, b"", 0xffffffff))
tx4.vout.append(CTxOut(amount, GetP2PKHScript(hash160(b'xyu')))) # send money to 'xyu'
(sig_hash, err) = SignatureHash(prevScriptPubKey, tx4, 0, SIGHASH_ALL)
assert (err is None)
signature = key.sign(sig_hash) + bytes(bytearray([SIGHASH_ALL]))
tx4.vin[0].scriptSig = CScript([signature, key.get_pubkey()])
tx4.rehash()
print('spend_utxo, utxo: {}, amount: {}, amount_orig: {}, pubkeyhash: {}, txid: {}, prevScriptPubKey ({}): {}'.
format(utxo, amount, amount_orig, bytes_to_hex_str(reverse(hash160(key.get_pubkey()))), tx4.hash,
len(prevScriptPubKey), bytes_to_hex_str(prevScriptPubKey)))
tx_message = msg_tx(tx4)
self.test_node.send_message(tx_message)
self.test_node.sync_with_ping()
node0 = self.nodes[0]
node0.generate(1)
self.test_node.sync_with_ping()
best_hash = node0.getbestblockhash()
last_block = node0.getblock(best_hash)
# Ensure our transaction is accepted by the node and is included into a block:
assert_in(tx4.hash, last_block['tx'])
del self.txmap[utxo_hash_hex]
def create_root_certificate(self, params):
scenario = params['invalid_root_cert_ref'] if 'invalid_root_cert_ref' in params else None
utxo_cert_root = None
ca3_key = None
if scenario is None:
# regular workflow
pass
elif scenario == 1:
# non-existing transaction (certificate)
utxo_cert_root = COutPoint(uint256_from_str(hash256(b'xyu')), 50)
elif scenario == 2:
# regular P2PKH transaction, not certificate
(utxo_cert_root, _) = self.pay_to_address(AddressFromPubkey(self.genezis_key0.get_pubkey()), params['rootcertamount'])
elif scenario == 3:
# invalid certificate: transfers money to another P2PKH address, not to itself
away_key = self.create_key('away_key', 'fake_root_cert')
(utxo_coins_root, _) = self.pay_to_address(AddressFromPubkey(self.genezis_key0.get_pubkey()),
ToCoins(params['rootcertamount']) + ToCoins('0.01'))
(ca3_keys, _, _, utxo_cert_root, _) = self.create_cert(utxo_coins_root, params['rootcertamount'],
self.genezis_key0, 1, 1, params['greenflag'], False, False,
'fake_root_cert', alt_dest_pubkeyhash = hash160(away_key.get_pubkey()))
assert_equal(len(ca3_keys), 1)
ca3_key = ca3_keys[0]
elif scenario == 4:
# will be processed in update_root_certificate() later
# another root certificate, not a parent of user certificate (CA3 keys in root and user certificates are different)
pass
elif scenario == 5:
# invalid root certificate, with unknown root key not mentioned in genezis block
fake_genezis_key = self.create_key('fake_genezis_key')
(utxo_coins_root, _) = self.pay_to_address(AddressFromPubkey(fake_genezis_key.get_pubkey()),
ToCoins(params['rootcertamount']) + ToCoins('0.01'))
(ca3_keys, _, _, utxo_cert_root, _) = self.create_cert(utxo_coins_root, params['rootcertamount'],
fake_genezis_key, 1, 1, params['greenflag'], False,
False, 'fake_root_cert')
assert_equal(len(ca3_keys), 1)
ca3_key = ca3_keys[0]
elif scenario == 6:
# use GENEZIS_PRIV_KEY1_HEX instead of GENEZIS_PRIV_KEY0_HEX:
genezis_key1 = CECKey()
genezis_key1.set_secretbytes(hex_str_to_bytes(GENEZIS_PRIV_KEY1_HEX))
if not genezis_key1.is_compressed():
genezis_key1.set_compressed(True)
(utxo_coins_root, _) = self.pay_to_address(AddressFromPubkey(genezis_key1.get_pubkey()),
ToCoins(params['rootcertamount']) + ToCoins('0.01'))
(ca3_keys, _, _, utxo_cert_root, _) = self.create_cert(utxo_coins_root, params['rootcertamount'],
genezis_key1, 1, 1, params['greenflag'], False,
False, 'root_cert')
assert_equal(len(ca3_keys), 1)
ca3_key = ca3_keys[0]
else:
assert (0)
if utxo_cert_root is not None:
if ca3_key is None:
ca3_key = self.create_key('ca3_key', 'fake_root_cert')
print('create_root_certificate, invalid_root_cert_ref, scenario: {}, utxo_cert_root: {}'.format(scenario, utxo_cert_root))
return (utxo_cert_root, ca3_key)
#
# now regular workflow:
#
# Script pays to address ROOT_PKH:
(utxo_coins_root, _) = self.pay_to_address(AddressFromPubkey(self.genezis_key0.get_pubkey()),
ToCoins(params['rootcertamount']) + ToCoins('0.01'))
# Скрипт переводит с адреса ROOT_PKH на этот же адрес некоторую сумму, например 1 PLC, активируя CA3_PKH ключ.
(ca3_keys, _, _, utxo_cert_root, _) = self.create_cert(utxo_coins_root, params['rootcertamount'],
self.genezis_key0,
1, 1, params['greenflag'], False, False, 'root_cert')
assert_equal(len(ca3_keys), 1)
ca3_key = ca3_keys[0]
return (utxo_cert_root, ca3_key)
def update_root_certificate(self, params, utxo_cert_root):
scenario = params['invalid_root_cert_ref'] if 'invalid_root_cert_ref' in params else None
if 'revoke_root_cert' in params and params['revoke_root_cert'] == True:
self.spend_utxo(utxo_cert_root, self.genezis_key0)
print('update_root_certificate: revoke_root_cert == True, spending {}'.format(utxo_cert_root))
if scenario == 4:
# another root certificate, not a parent of user certificate (CA3 keys in root and user certificates are different)
# create one more root certificate:
(utxo_coins_root, _) = self.pay_to_address(AddressFromPubkey(self.genezis_key0.get_pubkey()), ToCoins(params['rootcertamount']) + ToCoins('0.01'))
(_, _, _, utxo_cert_root, _) = self.create_cert(utxo_coins_root, params['rootcertamount'], self.genezis_key0,
1, 1, params['greenflag'], False, False, 'root_cert_2')
print('update_root_certificate, invalid_root_cert_ref, scenario: {}, utxo_cert_root: {}'.format(scenario, utxo_cert_root))
return utxo_cert_root
def create_user_certificate(self, params, ca3_key, user_keys_to_use = None):
scenario = params['invalid_user_cert_ref'] if 'invalid_user_cert_ref' in params else None
green_flag_in_user_cert = params['green_flag_in_user_cert'] if 'green_flag_in_user_cert' in params else False
utxo_cert_ca3 = None
user_keys = None
ben_key = None
time_ca3 = None
if scenario is None:
# regular workflow
pass