def new_masterkey(passphrase,
rand=Random(),
get_time=time.time,
nb_iterations_test=25000):
"""Create a new masterkey"""
crypter = Crypter()
plain_master_key = rand.get_random_bytes(WALLET_CRYPTO_KEY_SIZE)
rand.add_system_seeds()
salt = rand.get_random_bytes(WALLET_CRYPTO_SALT_SIZE)
deriv_method = MasterKey.DERIVMETHOD_EVP_SHA512
target_seconds = 0.1 #100ms
# estimate number of derivations for 100ms per decrypt using 25000 iterations.
start_time = get_time()
derive_key_from_passphrase(passphrase, salt, nb_iterations_test,
deriv_method)
estimate1 = int((nb_iterations_test * 1.0 * target_seconds) /
(get_time() - start_time))
# try it and take the mean of the estimate1 and estimate2
start_time = get_time()
derive_key_from_passphrase(passphrase, salt, estimate1, deriv_method)
estimate2 = int(estimate1 * target_seconds / (get_time() - start_time))
deriv_iterations = (estimate1 + estimate2) / 2
# use it
key, init_vect = derive_key_from_passphrase(passphrase, salt,
deriv_iterations, deriv_method)
crypter.set_key(key, init_vect)
crypted_key = crypter.encrypt(plain_master_key)
return MasterKey(crypted_key, salt, deriv_method, deriv_iterations)
def __init__(self, wallet_database, runmode):
super(Wallet, self).__init__()
self.wallet_database = wallet_database
self.runmode = runmode
self.addresses = {}
self.crypter = Crypter()
self.plain_masterkeys = []
def decrypt_masterkey(master_key, passphrase):
"""Return plain master key bytestring from a MasterKey object and a passphrase"""
key, init_vect = derive_key_from_passphrase(passphrase, master_key.salt, master_key.derive_iterations, master_key.derivation_method)
crypter = Crypter()
crypter.set_key(key, init_vect)
plain_masterkey = crypter.decrypt(master_key.crypted_key)
return plain_masterkey
def decrypt_masterkey(master_key, passphrase):
"""Return plain master key bytestring from a MasterKey object and a passphrase"""
key, init_vect = derive_key_from_passphrase(passphrase, master_key.salt,
master_key.derive_iterations,
master_key.derivation_method)
crypter = Crypter()
crypter.set_key(key, init_vect)
plain_masterkey = crypter.decrypt(master_key.crypted_key)
return plain_masterkey
def __init__(self, wallet_database, runmode):
super(Wallet, self).__init__()
self.wallet_database = wallet_database
self.runmode = runmode
self.addresses = {}
self.crypter = Crypter()
self.plain_masterkeys = []
def create(self, passphrase):
self.wallet_database.begin_updates()
crypter = Crypter()
#first create masterkey
master_key = new_masterkey(passphrase)
plain_masterkey = decrypt_masterkey(master_key, passphrase)
self.wallet_database.add_master_key(master_key)
#create transaction pool
for i in range(100):
k = KEY()
k.generate(True)
public_key = k.get_pubkey()
crypter.set_key(plain_masterkey, doublesha256(public_key))
crypted_secret = crypter.encrypt(k.get_secret())
self.wallet_database.add_crypted_key(public_key, crypted_secret)
pool_key = WalletPoolKey(i, 60000, time.time(), public_key)
self.wallet_database.add_poolkey(pool_key)
self.wallet_database.commit_updates()
self.load()
def create(self, passphrase):
self.wallet_database.begin_updates()
crypter = Crypter()
#first create masterkey
master_key = new_masterkey(passphrase)
plain_masterkey = decrypt_masterkey(master_key, passphrase)
self.wallet_database.add_master_key(master_key)
#create transaction pool
for i in range(100):
k = KEY()
k.generate(True)
public_key = k.get_pubkey()
crypter.set_key(plain_masterkey, doublesha256(public_key))
crypted_secret = crypter.encrypt(k.get_secret())
self.wallet_database.add_crypted_key(public_key, crypted_secret)
pool_key = WalletPoolKey(i, 60000, time.time(), public_key)
self.wallet_database.add_poolkey(pool_key)
self.wallet_database.commit_updates()
self.load()
def new_masterkey(passphrase, rand=Random(), get_time=time.time, nb_iterations_test=25000):
"""Create a new masterkey"""
crypter = Crypter()
plain_master_key = rand.get_random_bytes(WALLET_CRYPTO_KEY_SIZE)
rand.add_system_seeds()
salt = rand.get_random_bytes(WALLET_CRYPTO_SALT_SIZE)
deriv_method = MasterKey.DERIVMETHOD_EVP_SHA512
target_seconds = 0.1 #100ms
# estimate number of derivations for 100ms per decrypt using 25000 iterations.
start_time = get_time()
derive_key_from_passphrase(passphrase, salt, nb_iterations_test, deriv_method)
estimate1 = int((nb_iterations_test * 1.0 * target_seconds) / (get_time() - start_time))
# try it and take the mean of the estimate1 and estimate2
start_time = get_time()
derive_key_from_passphrase(passphrase, salt, estimate1, deriv_method)
estimate2 = int(estimate1 * target_seconds / (get_time() - start_time))
deriv_iterations = (estimate1 + estimate2) / 2
# use it
key, init_vect = derive_key_from_passphrase(passphrase, salt, deriv_iterations, deriv_method)
crypter.set_key(key, init_vect)
crypted_key = crypter.encrypt(plain_master_key)
return MasterKey(crypted_key, salt, deriv_method, deriv_iterations)
class Wallet(Observable):
'''
Wallet implementes the basic satoshi wallet logic.
Database logic is implemented in WalletDatabase
Features requiring a blockchain are implemented in WalletAccount.
'''
EVT_NEW_TRANSACTION = Observable.createevent()
def __init__(self, wallet_database, runmode):
super(Wallet, self).__init__()
self.wallet_database = wallet_database
self.runmode = runmode
self.addresses = {}
self.crypter = Crypter()
self.plain_masterkeys = []
def open(self):
self.wallet_database.open()
self.load()
def create(self, passphrase):
self.wallet_database.begin_updates()
crypter = Crypter()
#first create masterkey
master_key = new_masterkey(passphrase)
plain_masterkey = decrypt_masterkey(master_key, passphrase)
self.wallet_database.add_master_key(master_key)
#create transaction pool
for i in range(100):
k = KEY()
k.generate(True)
public_key = k.get_pubkey()
crypter.set_key(plain_masterkey, doublesha256(public_key))
crypted_secret = crypter.encrypt(k.get_secret())
self.wallet_database.add_crypted_key(public_key, crypted_secret)
pool_key = WalletPoolKey(i, 60000, time.time(), public_key)
self.wallet_database.add_poolkey(pool_key)
self.wallet_database.commit_updates()
self.load()
def load(self):
for public_key, keypair in self.wallet_database.get_keys().iteritems():
self.addresses[BitcoinAddress.from_publickey(
public_key, self.runmode)] = (public_key, False)
for public_key, secret in self.wallet_database.get_crypted_keys(
).iteritems():
self.addresses[BitcoinAddress.from_publickey(
public_key, self.runmode)] = (public_key, True)
def begin_updates(self):
self.wallet_database.begin_updates()
def commit_updates(self):
self.wallet_database.commit_updates()
def get_receive_key(self):
return self.wallet_database.get_receive_key()
def allocate_key(self, public_key, label=None, ischange=False):
address = BitcoinAddress.from_publickey(public_key, self.runmode)
return self.wallet_database.allocate_key(public_key, address, label)
def add_transaction(self, hashtx, wallet_tx):
self.wallet_database.set_transaction(hashtx, wallet_tx)
def get_transaction(self, hashtx):
return self.wallet_database.get_transaction(hashtx)
def set_transaction(self, hashtx, wallet_tx):
self.wallet_database.set_transaction(hashtx, wallet_tx)
def del_transaction(self, hashtx):
self.wallet_database.del_transaction(hashtx)
"""
yields ( public_key, is_crypted, address, description ) entries.
"""
def iterkeys(self):
names = self.wallet_database.get_names()
for address, (public_key, is_crypted) in self.addresses.iteritems():
description = self.get_address_description(public_key)
yield (public_key, is_crypted, address, description)
def get_address_description(self, public_key):
address = BitcoinAddress.from_publickey(public_key, self.runmode)
description = ""
if public_key in self.wallet_database.poolkeys_by_public_key:
poolkey = self.wallet_database.poolkeys_by_public_key[public_key]
description = "Pool (id:%d, time:%s)" % (
poolkey.poolnum,
time.strftime("%Y-%m-%d %H:%m:%S", time.gmtime(poolkey.time)))
else:
if address in self.wallet_database.get_names():
description = "Receive (\"%s\")" % self.wallet_database.get_names(
)[address].name
else:
description = "Change"
return description
def iter_my_outputs(self):
for hash, wallet_tx in self.wallet_database.get_wallet_txs().iteritems(
):
for index, txout in enumerate(wallet_tx.merkle_tx.tx.out_list):
if not wallet_tx.is_spent(index) and self.is_mine(txout):
yield (wallet_tx.merkle_tx.tx, Outpoint(hash,
index), txout)
#yield ControlledOutput(hash, wallet_tx.merkle_tx.tx, index, txout, self.get_keypair_for_output(txout))
''''
A TxIn is "debit" if the previous output is in the wallet and is mine.
If it is, get_debit_txin will return the value spent.
Debit transaction are used only for transaction history.
The balance is computed using unspent transactions.
'''
def get_debit_txin(self, txin):
if txin.previous_output.hash not in self.wallet_database.get_wallet_txs(
):
return 0
txprev = self.wallet_database.get_wallet_txs()[
txin.previous_output.hash]
txout = txprev.merkle_tx.tx.out_list[txin.previous_output.index]
if not self.is_mine(txout):
return 0
return txout.value
def get_debit_tx(self, wallet_tx):
return sum(
self.get_debit_txin(txin)
for txin in wallet_tx.merkle_tx.tx.in_list)
def get_credit_txout(self, txout):
if self.is_mine(txout):
return txout.value
return 0
def get_credit_tx(self, wallet_tx):
return sum(
self.get_credit_txout(txout)
for txout in wallet_tx.merkle_tx.tx.out_list)
def iter_transaction_history(self): # see wallet.cpp:448 GetAmounts
for hash, wallet_tx in self.wallet_database.get_wallet_txs().iteritems(
):
debit = self.get_debit_tx(wallet_tx)
for txout in wallet_tx.merkle_tx.tx.out_list:
address = extract_txout_address(txout, self.runmode)
name = ""
#print self.get_names()
#print encode_base58check(chr(ADDRESSVERSION[self.runmode]) + address)
if address and address in self.get_names():
name = self.get_names()[address].name
if debit > 0 and self.is_change(txout):
pass
elif debit > 0:
yield (wallet_tx, hash, wallet_tx.time_received, address,
name, -txout.value)
elif self.is_mine(txout):
yield (wallet_tx, hash, wallet_tx.time_received, address,
name, txout.value)
def get_wallet_txs(self):
return self.wallet_database.get_wallet_txs()
def get_keypairs(self):
return self.wallet_database.keypairs
def get_poolkeys(self):
return self.wallet_database.get_poolkeys()
def get_names(self):
return self.wallet_database.get_names()
def have_key_for_addresss(self, address):
return (address in self.addresses)
def is_passphrase_required(self, txout):
address = extract_txout_address(txout, self.runmode)
_, is_crypted = self.addresses[address]
return is_crypted
def unlock(self, passphrases):
for pphrase in passphrases:
for mkey in self.get_master_keys().values():
self.plain_masterkeys.append(decrypt_masterkey(mkey, pphrase))
""" Return a private key for a txout as binary bignum.
Requires unlock() if this key in encrypted """
def get_txout_private_key_secret(self, txout):
address = extract_txout_address(txout, self.runmode)
public_key, is_crypted = self.addresses[address]
return self.get_private_key_secret(public_key)
def get_private_key_secret(self, public_key):
if public_key in self.wallet_database.keys: # private key is not crypted
k = KEY()
k.set_privkey(self.wallet_database.keys[public_key].private_key)
return k.get_secret()
crypted_secret = self.wallet_database.get_crypted_keys()[public_key]
for key in self.plain_masterkeys:
self.crypter.set_key(key, doublesha256(public_key))
secret = self.crypter.decrypt(crypted_secret)
k = KEY()
is_compressed = len(public_key) == 33
k.set_secret(secret, is_compressed)
if k.get_pubkey() == public_key:
return secret
raise KeyDecryptException(
"Can't decrypt private key, wallet not unlocked or incorrect masterkey"
)
def lock(self):
self.plain_masterkeys = []
def is_mine(self, txout):
address = extract_txout_address(txout, self.runmode)
if not address: # if unknown script type, return False
return False
return self.have_key_for_addresss(address)
""" Return the wallet's besthash as Uint256() or None if not supported """
def get_besthash_reference(self):
locator = self.wallet_database.get_block_locator()
if locator:
return self.wallet_database.get_block_locator().highest()
def is_change(self, txout):
# Fix to be implemented in main client, see wallet.cpp:390
# current bad assumption is that any payment to a TX_PUBKEYHASH that
# is mine but isn't in the address book is change.
address = extract_txout_address(txout, self.runmode)
return self.is_mine(txout) and (address not in self.get_names())
def get_master_keys(self):
return self.wallet_database.get_master_keys()
class Wallet(Observable):
'''
Wallet implementes the basic satoshi wallet logic.
Database logic is implemented in WalletDatabase
Features requiring a blockchain are implemented in WalletAccount.
'''
EVT_NEW_TRANSACTION = Observable.createevent()
def __init__(self, wallet_database, runmode):
super(Wallet, self).__init__()
self.wallet_database = wallet_database
self.runmode = runmode
self.addresses = {}
self.crypter = Crypter()
self.plain_masterkeys = []
def open(self):
self.wallet_database.open()
self.load()
def create(self, passphrase):
self.wallet_database.begin_updates()
crypter = Crypter()
#first create masterkey
master_key = new_masterkey(passphrase)
plain_masterkey = decrypt_masterkey(master_key, passphrase)
self.wallet_database.add_master_key(master_key)
#create transaction pool
for i in range(100):
k = KEY()
k.generate(True)
public_key = k.get_pubkey()
crypter.set_key(plain_masterkey, doublesha256(public_key))
crypted_secret = crypter.encrypt(k.get_secret())
self.wallet_database.add_crypted_key(public_key, crypted_secret)
pool_key = WalletPoolKey(i, 60000, time.time(), public_key)
self.wallet_database.add_poolkey(pool_key)
self.wallet_database.commit_updates()
self.load()
def load(self):
for public_key, keypair in self.wallet_database.get_keys().iteritems():
self.addresses[BitcoinAddress.from_publickey(public_key, self.runmode)] = (public_key, False)
for public_key, secret in self.wallet_database.get_crypted_keys().iteritems():
self.addresses[BitcoinAddress.from_publickey(public_key, self.runmode)] = (public_key, True)
def begin_updates(self):
self.wallet_database.begin_updates()
def commit_updates(self):
self.wallet_database.commit_updates()
def get_receive_key(self):
return self.wallet_database.get_receive_key()
def allocate_key(self, public_key, label=None, ischange=False):
address = BitcoinAddress.from_publickey(public_key, self.runmode)
return self.wallet_database.allocate_key(public_key, address, label)
def add_transaction(self, hashtx, wallet_tx):
self.wallet_database.set_transaction(hashtx, wallet_tx)
def get_transaction(self, hashtx):
return self.wallet_database.get_transaction(hashtx)
def set_transaction(self, hashtx, wallet_tx):
self.wallet_database.set_transaction(hashtx, wallet_tx)
def del_transaction(self, hashtx):
self.wallet_database.del_transaction(hashtx)
"""
yields ( public_key, is_crypted, address, description ) entries.
"""
def iterkeys(self):
names = self.wallet_database.get_names()
for address, (public_key, is_crypted) in self.addresses.iteritems():
description = self.get_address_description(public_key)
yield (public_key, is_crypted, address, description)
def get_address_description(self, public_key):
address = BitcoinAddress.from_publickey(public_key, self.runmode)
description = ""
if public_key in self.wallet_database.poolkeys_by_public_key:
poolkey = self.wallet_database.poolkeys_by_public_key[public_key]
description = "Pool (id:%d, time:%s)" % (poolkey.poolnum, time.strftime("%Y-%m-%d %H:%m:%S", time.gmtime(poolkey.time)))
else:
if address in self.wallet_database.get_names():
description = "Receive (\"%s\")" % self.wallet_database.get_names()[address].name
else:
description = "Change"
return description
def iter_my_outputs(self):
for hash, wallet_tx in self.wallet_database.get_wallet_txs().iteritems():
for index, txout in enumerate(wallet_tx.merkle_tx.tx.out_list):
if not wallet_tx.is_spent(index) and self.is_mine(txout):
yield (wallet_tx.merkle_tx.tx, Outpoint(hash, index), txout)
#yield ControlledOutput(hash, wallet_tx.merkle_tx.tx, index, txout, self.get_keypair_for_output(txout))
''''
A TxIn is "debit" if the previous output is in the wallet and is mine.
If it is, get_debit_txin will return the value spent.
Debit transaction are used only for transaction history.
The balance is computed using unspent transactions.
'''
def get_debit_txin(self, txin):
if txin.previous_output.hash not in self.wallet_database.get_wallet_txs():
return 0
txprev = self.wallet_database.get_wallet_txs()[txin.previous_output.hash]
txout = txprev.merkle_tx.tx.out_list[txin.previous_output.index]
if not self.is_mine(txout):
return 0
return txout.value
def get_debit_tx(self, wallet_tx):
return sum(self.get_debit_txin(txin) for txin in wallet_tx.merkle_tx.tx.in_list)
def get_credit_txout(self, txout):
if self.is_mine(txout):
return txout.value
return 0
def get_credit_tx(self, wallet_tx):
return sum(self.get_credit_txout(txout) for txout in wallet_tx.merkle_tx.tx.out_list)
def iter_transaction_history(self): # see wallet.cpp:448 GetAmounts
for hash, wallet_tx in self.wallet_database.get_wallet_txs().iteritems():
debit = self.get_debit_tx(wallet_tx)
for txout in wallet_tx.merkle_tx.tx.out_list:
address = extract_txout_address(txout, self.runmode)
name = ""
#print self.get_names()
#print encode_base58check(chr(ADDRESSVERSION[self.runmode]) + address)
if address and address in self.get_names():
name = self.get_names()[address].name
if debit > 0 and self.is_change(txout):
pass
elif debit > 0:
yield (wallet_tx, hash, wallet_tx.time_received, address, name, -txout.value)
elif self.is_mine(txout):
yield (wallet_tx, hash, wallet_tx.time_received, address, name, txout.value)
def get_wallet_txs(self):
return self.wallet_database.get_wallet_txs()
def get_keypairs(self):
return self.wallet_database.keypairs
def get_poolkeys(self):
return self.wallet_database.get_poolkeys()
def get_names(self):
return self.wallet_database.get_names()
def have_key_for_addresss(self, address):
return (address in self.addresses)
def is_passphrase_required(self, txout):
address = extract_txout_address(txout, self.runmode)
_, is_crypted = self.addresses[address]
return is_crypted
def unlock(self, passphrases):
for pphrase in passphrases:
for mkey in self.get_master_keys().values():
self.plain_masterkeys.append(decrypt_masterkey(mkey, pphrase))
""" Return a private key for a txout as binary bignum.
Requires unlock() if this key in encrypted """
def get_txout_private_key_secret(self, txout):
address = extract_txout_address(txout, self.runmode)
public_key, is_crypted = self.addresses[address]
return self.get_private_key_secret(public_key)
def get_private_key_secret(self, public_key):
if public_key in self.wallet_database.keys: # private key is not crypted
k = KEY()
k.set_privkey(self.wallet_database.keys[public_key].private_key)
return k.get_secret()
crypted_secret = self.wallet_database.get_crypted_keys()[public_key]
for key in self.plain_masterkeys:
self.crypter.set_key(key, doublesha256(public_key))
secret = self.crypter.decrypt(crypted_secret)
k = KEY()
is_compressed = len(public_key) == 33
k.set_secret(secret, is_compressed)
if k.get_pubkey() == public_key:
return secret
raise KeyDecryptException("Can't decrypt private key, wallet not unlocked or incorrect masterkey")
def lock(self):
self.plain_masterkeys = []
def is_mine(self, txout):
address = extract_txout_address(txout, self.runmode)
if not address: # if unknown script type, return False
return False
return self.have_key_for_addresss(address)
""" Return the wallet's besthash as Uint256() or None if not supported """
def get_besthash_reference(self):
locator = self.wallet_database.get_block_locator()
if locator:
return self.wallet_database.get_block_locator().highest()
def is_change(self, txout):
# Fix to be implemented in main client, see wallet.cpp:390
# current bad assumption is that any payment to a TX_PUBKEYHASH that
# is mine but isn't in the address book is change.
address = extract_txout_address(txout, self.runmode)
return self.is_mine(txout) and (address not in self.get_names())
def get_master_keys(self):
return self.wallet_database.get_master_keys()
"be4afa6923ad06790b0f8c3345131499cf2b149ca422bd11a7e67a76347c51a456a2d626f75da1ff809632fca7165d71"
),
salt=decodehexstr("8cdcbd8a494b0eeb"),
derivation_method=MasterKey.DERIVMETHOD_EVP_SHA512,
derive_iterations=45193,
other_derivation_parameters="")
#Decrypt the master crypted_key using the passphrase
plain_masterkey = decrypt_masterkey(master_key, "hello")
#Decrypt a crypted_secret
public_key = decodehexstr(
"046a82d73af2cc093e3df7ae0185f045946970bcd5f0ef26f82d4f9a24e0d50f977c51e311e079e3183cfadd67d9b3f089fe7ba94a196c365fbd9e03b8c423787d"
)
crypted_secret = decodehexstr(
"ff914ab69f58af92ac56de85051441e729cc51e11608d563e2a266ce3b8c59f573ed6a1828ff98fadb345890b6ed2626"
)
crypter2 = Crypter()
crypter2.set_key(plain_masterkey, doublesha256(public_key))
secret = crypter2.decrypt(crypted_secret)
print hexstr(secret)
#Test the secret
k = KEY()
k.set_secret(secret)
sig = signature1 = k.sign("sign something")
k2 = KEY()
k2.set_pubkey(public_key)
print k2.verify("sign something", sig)
#Create a new masterkey
m = new_masterkey("hello hello")
print m
print hexstr(decrypt_masterkey(m, "hello hello"))
from coinpy.tools.hex import decodehexstr
from coinpy.tools.hex import hexstr
from coinpy.model.wallet.masterkey import MasterKey
from coinpy.tools.bitcoin.sha256 import doublesha256
from coinpy.tools.crypto.ecdsa.ecdsa_ssl import KEY
master_key = MasterKey(crypted_key=decodehexstr("be4afa6923ad06790b0f8c3345131499cf2b149ca422bd11a7e67a76347c51a456a2d626f75da1ff809632fca7165d71"),
salt=decodehexstr("8cdcbd8a494b0eeb"),
derivation_method=MasterKey.DERIVMETHOD_EVP_SHA512,
derive_iterations=45193, other_derivation_parameters="")
#Decrypt the master crypted_key using the passphrase
plain_masterkey = decrypt_masterkey(master_key, "hello")
#Decrypt a crypted_secret
public_key = decodehexstr("046a82d73af2cc093e3df7ae0185f045946970bcd5f0ef26f82d4f9a24e0d50f977c51e311e079e3183cfadd67d9b3f089fe7ba94a196c365fbd9e03b8c423787d")
crypted_secret = decodehexstr("ff914ab69f58af92ac56de85051441e729cc51e11608d563e2a266ce3b8c59f573ed6a1828ff98fadb345890b6ed2626")
crypter2 = Crypter()
crypter2.set_key(plain_masterkey, doublesha256(public_key))
secret = crypter2.decrypt(crypted_secret)
print hexstr(secret)
#Test the secret
k = KEY()
k.set_secret(secret)
sig = signature1 = k.sign("sign something")
k2 = KEY()
k2.set_pubkey(public_key)
print k2.verify("sign something", sig)
#Create a new masterkey
m = new_masterkey("hello hello")
print m
print hexstr(decrypt_masterkey(m, "hello hello" ))