def test_decrypt_private_key(self):
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")
print "plain_masterkey:", hexstr(plain_masterkey)
assert hexstr(plain_masterkey) == "56722b42c4b9f8689fe9b38745fe75af92d0a50d6fd94b34de6b6d5e287bbed3"
#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 "secret:", hexstr(secret)
assert hexstr(secret) == "1c7552a9b755d29d081efd71f7811cc8ab2c9f2c634f489e6b45700711c8a304"
#Test the secret
k = KEY()
k.set_secret(secret)
assert k.get_pubkey() == public_key
sig1 = k.sign("sign something")
k2 = KEY()
k2.set_pubkey(public_key)
assert k2.verify("sign something", sig1) == 1
def hash_blockheader(blockheader):
if blockheader.hash:
return blockheader.hash
if not blockheader.rawdata:
blockheader.rawdata = BLOCK_SERIALIZE.serialize(blockheader)
blockheader.hash = Uint256.from_bytestr(doublesha256(blockheader.rawdata))
return blockheader.hash
def mine_block(hash_prev,
block_height,
time_source,
difficulty_bits,
transactions,
coinbase_txout_list,
coinbase_flags=["/P2SH/"],
nonce_changer=default_nonce_changer):
template = BlockheaderTemplate(hash_prev,
block_height,
coinbase_txout_list,
transactions,
time_source.get_time(),
difficulty_bits,
coinbase_flags=coinbase_flags)
difficulty_target = uint256_difficulty(difficulty_bits)
hash_found = False
while not hash_found:
hash = Uint256.from_bytestr(doublesha256(
template.get_serialized()))
if (hash <= difficulty_target):
hash_found = True
else:
nonce_changer(template)
return (template.get_block(), template)
def sign_transaction_input(tx,
input_index,
txout_script,
intput_script_type,
secret,
compressed_pubkey=True):
# Set all txin to empty
txin_scripts_save = [txin.script for txin in tx.in_list]
for txin in tx.in_list:
txin.script = Script([])
# Set the current input script to the outpoint's script value
tx.in_list[input_index].script = txout_script
# Serialize and append hash type
enctx = TxSerializer().serialize(tx) + b"\x01\x00\x00\x00"
# Get hash and Sign
txhash = doublesha256(enctx)
key = KEY()
key.set_secret(secret, compressed_pubkey)
signature = key.sign(txhash) + "\x01" # append hash_type SIGHASH_ALL
# Restore Txin scripts
for txin, script_save in zip(tx.in_list, txin_scripts_save):
txin.script = script_save
# Set the signed script
if intput_script_type == TX_PUBKEYHASH:
tx.in_list[input_index].script = make_script_pubkeyhash_sig(
key.get_pubkey(), signature)
if intput_script_type == TX_PUBKEY:
tx.in_list[input_index].script = make_script_pubkey_sig(signature)
def hash_tx(tx):
if tx.hash:
return tx.hash
if not tx.rawdata:
tx.rawdata = TX_SERIALIZE.serialize(tx)
tx.hash = Uint256.from_bytestr(doublesha256(tx.rawdata))
return tx.hash
def decode_base58check(data, preserve_leading_zeros=True):
raw = preserve_leading_zeros and (count_leading_base58_zeros(data) * "\0") or ""
raw += base256encode(base58decode(data))
if len(raw) < 4:
raise Exception("base58check: format error")
content, check = raw[:-4], raw[-4:]
digest2 = doublesha256(content)
if digest2[:4] != check:
raise Exception("base58check: checksum error %s != %s" % (hexstr(digest2[:4]), hexstr(check)))
return content
def decode_base58check(data, preserve_leading_zeros=True):
raw = preserve_leading_zeros and (count_leading_base58_zeros(data) *
"\0") or ""
raw += base256encode(base58decode(data))
if len(raw) < 4:
raise Exception("base58check: format error")
content, check = raw[:-4], raw[-4:]
digest2 = doublesha256(content)
if (digest2[:4] != check):
raise Exception("base58check: checksum error %s != %s" %
(hexstr(digest2[:4]), hexstr(check)))
return (content)
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 encode_base58check(content, preserve_leading_zeros=True):
""" Encode a bytestring (bid endian) as base58 with checksum.
preserve_leading_zeros: argument used for MAIN bitcoin addresses (e.g.ADDRESSVERSION == 0)
to preserve base256 leading zeros as base58 zeros ('1').
For example:
addrversion=00,hash160=00602005b16851c4f9d0e2c82fa161ac8190e04c will give the bitcoin address:
112z9tWej11X94khKKzofFgWbdhiXLeHPD
"""
data = content + doublesha256(content)[:4]
leading_zeros = None
if preserve_leading_zeros:
leading_zeros = 0
while data[leading_zeros] == "\x00":
leading_zeros += 1
return base58encode(base256decode(data), leading_zeros=leading_zeros)
def encode_base58check(content, preserve_leading_zeros=True):
""" Encode a bytestring (bid endian) as base58 with checksum.
preserve_leading_zeros: argument used for MAIN bitcoin addresses (e.g.ADDRESSVERSION == 0)
to preserve base256 leading zeros as base58 zeros ('1').
For example:
addrversion=00,hash160=00602005b16851c4f9d0e2c82fa161ac8190e04c will give the bitcoin address:
112z9tWej11X94khKKzofFgWbdhiXLeHPD
"""
data = content + doublesha256(content)[:4]
leading_zeros = None
if preserve_leading_zeros:
leading_zeros = 0
while data[leading_zeros] == "\x00":
leading_zeros += 1
return (base58encode(base256decode(data), leading_zeros=leading_zeros))
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 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 sign_transaction_input(tx, input_index, txout_script, intput_script_type, secret, compressed_pubkey=True):
# Set all txin to empty
txin_scripts_save = [txin.script for txin in tx.in_list]
for txin in tx.in_list:
txin.script = Script([])
# Set the current input script to the outpoint's script value
tx.in_list[input_index].script = txout_script
# Serialize and append hash type
enctx = TxSerializer().serialize(tx) + b"\x01\x00\x00\x00"
# Get hash and Sign
txhash = doublesha256(enctx)
key = KEY()
key.set_secret(secret, compressed_pubkey)
signature = key.sign(txhash) + "\x01" # append hash_type SIGHASH_ALL
# Restore Txin scripts
for txin, script_save in zip(tx.in_list, txin_scripts_save):
txin.script = script_save
# Set the signed script
if intput_script_type == TX_PUBKEYHASH:
tx.in_list[input_index].script = make_script_pubkeyhash_sig(key.get_pubkey(), signature)
if intput_script_type == TX_PUBKEY:
tx.in_list[input_index].script = make_script_pubkey_sig(signature)
def test_decrypt_private_key(self):
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")
print "plain_masterkey:", hexstr(plain_masterkey)
assert hexstr(
plain_masterkey
) == "56722b42c4b9f8689fe9b38745fe75af92d0a50d6fd94b34de6b6d5e287bbed3"
#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 "secret:", hexstr(secret)
assert hexstr(
secret
) == "1c7552a9b755d29d081efd71f7811cc8ab2c9f2c634f489e6b45700711c8a304"
#Test the secret
k = KEY()
k.set_secret(secret)
assert k.get_pubkey() == public_key
sig1 = k.sign("sign something")
k2 = KEY()
k2.set_pubkey(public_key)
assert k2.verify("sign something", sig1) == 1
def mine_block(hash_prev,
block_height,
time_source,
difficulty_bits,
transactions,
coinbase_txout_list,
coinbase_flags=["/P2SH/"],
nonce_changer=default_nonce_changer):
template = BlockheaderTemplate(hash_prev,
block_height,
coinbase_txout_list,
transactions,
time_source.get_time(),
difficulty_bits,
coinbase_flags=coinbase_flags)
difficulty_target = uint256_difficulty(difficulty_bits)
hash_found = False
while not hash_found:
hash = Uint256.from_bytestr(doublesha256(template.get_serialized()))
if (hash <= difficulty_target):
hash_found = True
else:
nonce_changer(template)
return (template.get_block(), template)
def op_hash256(vm, instr):
if (len(vm.stack) < 1):
raise Exception("OP_HASH256: Missing argument")
x = vm.stack.pop()
vm.stack.append(doublesha256(x))
),
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"))
def op_hash256(vm, instr):
if (len(vm.stack) < 1):
raise Exception("OP_HASH256: Missing argument")
x = vm.stack.pop()
vm.stack.append(doublesha256(x))
def checksig(vm, sig_param, pubkey_param):
transaction, inputindex, unspent_script = vm.checksig_data
#Hash type is the last byte of the signature
hash_type, sig = ord(sig_param[-1]), sig_param[:-1]
# last 5 bits of hash_type : 1=SIGHASH_ALL,2=SIGHASH_NONE, 3=SIGHASH_SINGLE
# SIGHASH_ANYONECANPAY = 0x80
# For performance reasons no full copy is made of the transaction
# although it would be simpler to read.
# e.g. tx_tmp = copy.deepcopy(transaction)
# The input scripts are saved and then restored.
tx_tmp = Tx(transaction.version, [
TxIn(txin.previous_output, txin.script, txin.sequence)
for txin in transaction.in_list
], [TxOut(txout.value, txout.script) for txout in transaction.out_list],
transaction.locktime)
#Save input scripts to restore them later
#inlist = transaction.in_list
#outlist = transaction.out_list
#inscripts = [txin.script for txin in transaction.in_list]
#TODO: blank out ouputs depending of hash_type (SIGHASH_NONE, SIGHASH_SINGLE)
if (hash_type & SIGHASH_MASK == SIGHASH_NONE):
tx_tmp.out_list = []
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE):
if (inputindex > len(tx_tmp.out_list)):
raise Exception(
"OP_CHECKSIG: no corresponding output for input %d using SIGHASH_SINGLE "
% (inputindex))
#n-1 empty TxOuts + original Txout
tx_tmp.out_list = [TxOut(-1, Script([])) for _ in range(inputindex)] + \
[tx_tmp.out_list[inputindex]]
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE
or hash_type & SIGHASH_MASK == SIGHASH_NONE):
# let others update at will
for i in range(len(tx_tmp.in_list)):
if i != inputindex:
tx_tmp.in_list[i].sequence = 0
#blank out other inputs in case of SIGHASH_ANYONECANPAY
if (hash_type & SIGHASH_ANYONECANPAY):
tx_tmp.in_list = [tx_tmp.in_list[inputindex]]
inputindex = 0
#blank out input scripts
for txin in tx_tmp.in_list:
txin.script = Script([])
#except the current one that is replaced by the signed part (e.g. from the last OP_CODESEPARATOR)
# of current_script with signature push_data removed
# note: only 'optimal' push_data instructions with the same signature are removed
current_script = Script(
filter(lambda instr: instr != push_data_instruction(sig_param),
vm.current_script.signed_part().instructions))
tx_tmp.in_list[inputindex].script = current_script
#serialize and append hash type
enctx = TxSerializer().serialize(tx_tmp) + chr(hash_type) + b"\x00\x00\x00"
#print "enctx:", hexstr(enctx)
#print "sig:", hexstr(sig)
#print "pubkey:", hexstr(pubkey_param)
#Get hash
hash = doublesha256(enctx)
#Verify
key = KEY()
key.set_pubkey(pubkey_param)
#ECDSA_verify: 1 = OK, 0=NOK, -1=ERROR
result = key.verify(hash, sig) == 1
if not result:
pass
#Restore transaction scripts
#for txin, script in zip(inlist,inscripts):
# txin.script = script
#transaction.in_list = inlist
return (result)
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" ))
def checksig(vm, sig_param, pubkey_param):
transaction, inputindex, unspent_script = vm.checksig_data
#Hash type is the last byte of the signature
hash_type, sig = ord(sig_param[-1]), sig_param[:-1]
# last 5 bits of hash_type : 1=SIGHASH_ALL,2=SIGHASH_NONE, 3=SIGHASH_SINGLE
# SIGHASH_ANYONECANPAY = 0x80
# For performance reasons no full copy is made of the transaction
# although it would be simpler to read.
# e.g. tx_tmp = copy.deepcopy(transaction)
# The input scripts are saved and then restored.
tx_tmp = Tx(transaction.version,
[TxIn(txin.previous_output, txin.script, txin.sequence) for txin in transaction.in_list],
[TxOut(txout.value, txout.script) for txout in transaction.out_list],
transaction.locktime)
#Save input scripts to restore them later
#inlist = transaction.in_list
#outlist = transaction.out_list
#inscripts = [txin.script for txin in transaction.in_list]
#TODO: blank out ouputs depending of hash_type (SIGHASH_NONE, SIGHASH_SINGLE)
if (hash_type & SIGHASH_MASK == SIGHASH_NONE):
tx_tmp.out_list = []
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE):
if (inputindex > len(tx_tmp.out_list)):
raise Exception("OP_CHECKSIG: no corresponding output for input %d using SIGHASH_SINGLE " % (inputindex))
#n-1 empty TxOuts + original Txout
tx_tmp.out_list = [TxOut(-1, Script([])) for _ in range(inputindex)] + \
[tx_tmp.out_list[inputindex]]
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE or
hash_type & SIGHASH_MASK == SIGHASH_NONE):
# let others update at will
for i in range(len(tx_tmp.in_list)):
if i != inputindex:
tx_tmp.in_list[i].sequence = 0
#blank out other inputs in case of SIGHASH_ANYONECANPAY
if (hash_type & SIGHASH_ANYONECANPAY):
tx_tmp.in_list = [tx_tmp.in_list[inputindex]]
inputindex = 0
#blank out input scripts
for txin in tx_tmp.in_list:
txin.script = Script([])
#except the current one that is replaced by the signed part (e.g. from the last OP_CODESEPARATOR)
# of current_script with signature push_data removed
# note: only 'optimal' push_data instructions with the same signature are removed
current_script = Script(filter(lambda instr: instr!=push_data_instruction(sig_param),
vm.current_script.signed_part().instructions))
tx_tmp.in_list[inputindex].script = current_script
#serialize and append hash type
enctx = TxSerializer().serialize(tx_tmp) + chr(hash_type) + b"\x00\x00\x00"
#print "enctx:", hexstr(enctx)
#print "sig:", hexstr(sig)
#print "pubkey:", hexstr(pubkey_param)
#Get hash
hash = doublesha256(enctx)
#Verify
key = KEY()
key.set_pubkey(pubkey_param)
#ECDSA_verify: 1 = OK, 0=NOK, -1=ERROR
result = key.verify(hash, sig) == 1
if not result:
pass
#Restore transaction scripts
#for txin, script in zip(inlist,inscripts):
# txin.script = script
#transaction.in_list = inlist
return (result)
