-"""
-todolist:
- * passwords, private keys storage
- * multisig service
- * compatibility with old addresses for restore
- * gui
-
- an account may use one or several MPKs.
- due to the type 1 derivations, we need to pass the mpk to this function
- None : all accounts
- -1 : imported
- 0,1... : seeded sequences
-
- each account has a public and private master key
-"""
+#!/usr/bin/env python
+#
+# Electrum - lightweight Bitcoin client
+# Copyright (C) 2013 thomasv@gitorious
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
-from bitcoin import *
+from bitcoin import *
+from transaction import Transaction
class Account(object):
def __init__(self, v):
self.addresses = v.get('0', [])
self.change = v.get('1', [])
- self.name = v.get('name', 'unnamed')
def dump(self):
- return {'0':self.addresses, '1':self.change, 'name':self.name}
-
- def get_name(self):
- return self.name
+ return {'0':self.addresses, '1':self.change}
def get_addresses(self, for_change):
return self.change[:] if for_change else self.addresses[:]
class OldAccount(Account):
""" Privatekey(type,n) = Master_private_key + H(n|S|type) """
- def __init__(self, mpk, mpk2 = None, mpk3 = None):
- self.mpk = mpk
- self.mpk2 = mpk2
- self.mpk3 = mpk3
+ def __init__(self, v):
+ self.addresses = v.get(0, [])
+ self.change = v.get(1, [])
+ self.mpk = v['mpk'].decode('hex')
+
+ def dump(self):
+ return {0:self.addresses, 1:self.change}
@classmethod
def mpk_from_seed(klass, seed):
seed = hashlib.sha256(seed + oldseed).digest()
return string_to_number( seed )
- def get_sequence(self, sequence, mpk):
- for_change, n = sequence
- return string_to_number( Hash( "%d:%d:"%(n,for_change) + mpk.decode('hex') ) )
-
- def get_address(self, sequence):
- if not self.mpk2:
- pubkey = self.get_pubkey(sequence)
- address = public_key_to_bc_address( pubkey.decode('hex') )
- elif not self.mpk3:
- pubkey1 = self.get_pubkey(sequence)
- pubkey2 = self.get_pubkey(sequence, mpk = self.mpk2)
- address = Transaction.multisig_script([pubkey1, pubkey2], 2)["address"]
- else:
- pubkey1 = self.get_pubkey(sequence)
- pubkey2 = self.get_pubkey(sequence, mpk = self.mpk2)
- pubkey3 = self.get_pubkey(sequence, mpk = self.mpk3)
- address = Transaction.multisig_script([pubkey1, pubkey2, pubkey3], 2)["address"]
+ def get_sequence(self, for_change, n):
+ return string_to_number( Hash( "%d:%d:"%(n,for_change) + self.mpk ) )
+
+ def get_address(self, for_change, n):
+ pubkey = self.get_pubkey(for_change, n)
+ address = public_key_to_bc_address( pubkey.decode('hex') )
return address
- def get_pubkey(self, sequence, mpk=None):
+ def get_pubkey(self, for_change, n):
curve = SECP256k1
- if mpk is None: mpk = self.mpk
- z = self.get_sequence(sequence, mpk)
- master_public_key = ecdsa.VerifyingKey.from_string( mpk.decode('hex'), curve = SECP256k1 )
+ mpk = self.mpk
+ z = self.get_sequence(for_change, n)
+ master_public_key = ecdsa.VerifyingKey.from_string( mpk, curve = SECP256k1 )
pubkey_point = master_public_key.pubkey.point + z*curve.generator
public_key2 = ecdsa.VerifyingKey.from_public_point( pubkey_point, curve = SECP256k1 )
return '04' + public_key2.to_string().encode('hex')
- def get_private_key_from_stretched_exponent(self, sequence, secexp):
+ def get_private_key_from_stretched_exponent(self, for_change, n, secexp):
order = generator_secp256k1.order()
- secexp = ( secexp + self.get_sequence(sequence, self.mpk) ) % order
+ secexp = ( secexp + self.get_sequence(for_change, n) ) % order
pk = number_to_string( secexp, generator_secp256k1.order() )
compressed = False
return SecretToASecret( pk, compressed )
- def get_private_key(self, sequence, seed):
- secexp = self.stretch_key(seed)
- return self.get_private_key_from_stretched_exponent(sequence, secexp)
-
- def get_private_keys(self, sequence_list, seed):
+ def get_private_key(self, seed, sequence):
+ for_change, n = sequence
secexp = self.stretch_key(seed)
- return [ self.get_private_key_from_stretched_exponent( sequence, secexp) for sequence in sequence_list]
+ return self.get_private_key_from_stretched_exponent(for_change, n, secexp)
def check_seed(self, seed):
curve = SECP256k1
raise BaseException('Invalid password')
return True
- def get_input_info(self, sequence):
- if not self.mpk2:
- pk_addr = self.get_address(sequence)
- redeemScript = None
- elif not self.mpk3:
- pubkey1 = self.get_pubkey(sequence)
- pubkey2 = self.get_pubkey(sequence,mpk=self.mpk2)
- pk_addr = public_key_to_bc_address( pubkey1.decode('hex') ) # we need to return that address to get the right private key
- redeemScript = Transaction.multisig_script([pubkey1, pubkey2], 2)['redeemScript']
- else:
- pubkey1 = self.get_pubkey(sequence)
- pubkey2 = self.get_pubkey(sequence, mpk=self.mpk2)
- pubkey3 = self.get_pubkey(sequence, mpk=self.mpk3)
- pk_addr = public_key_to_bc_address( pubkey1.decode('hex') ) # we need to return that address to get the right private key
- redeemScript = Transaction.multisig_script([pubkey1, pubkey2, pubkey3], 2)['redeemScript']
- return pk_addr, redeemScript
-
+ def redeem_script(self, sequence):
+ return None
class BIP32_Account(Account):
def get_address(self, for_change, n):
pubkey = self.get_pubkey(for_change, n)
- address = public_key_to_bc_address( pubkey )
+ address = public_key_to_bc_address( pubkey.decode('hex') )
return address
+ def first_address(self):
+ return self.get_address(0,0)
+
def get_pubkey(self, for_change, n):
K = self.K
chain = self.c
for i in [for_change, n]:
K, K_compressed, chain = CKD_prime(K, chain, i)
- return K_compressed
-
- def get_private_key(self, sequence, master_k):
- chain = self.c
- k = master_k
- for i in sequence:
- k, chain = CKD(k, chain, i)
- return SecretToASecret(k, True)
+ return K_compressed.encode('hex')
- def get_private_keys(self, sequence_list, seed):
- return [ self.get_private_key( sequence, seed) for sequence in sequence_list]
+ def redeem_script(self, sequence):
+ return None
- def check_seed(self, seed):
- master_secret, master_chain, master_public_key, master_public_key_compressed = bip32_init(seed)
- assert self.mpk == (master_public_key.encode('hex'), master_chain.encode('hex'))
-
- def get_input_info(self, sequence):
- chain, i = sequence
- pk_addr = self.get_address(chain, i)
- redeemScript = None
- return pk_addr, redeemScript
chain = self.c2
for i in [for_change, n]:
K, K_compressed, chain = CKD_prime(K, chain, i)
- return K_compressed
+ return K_compressed.encode('hex')
+
+ def redeem_script(self, sequence):
+ chain, i = sequence
+ pubkey1 = self.get_pubkey(chain, i)
+ pubkey2 = self.get_pubkey2(chain, i)
+ return Transaction.multisig_script([pubkey1, pubkey2], 2)
def get_address(self, for_change, n):
- pubkey1 = self.get_pubkey(for_change, n)
- pubkey2 = self.get_pubkey2(for_change, n)
- address = Transaction.multisig_script([pubkey1.encode('hex'), pubkey2.encode('hex')], 2)["address"]
+ address = hash_160_to_bc_address(hash_160(self.redeem_script((for_change, n)).decode('hex')), 5)
return address
- def get_input_info(self, sequence):
+
+class BIP32_Account_2of3(BIP32_Account_2of2):
+
+ def __init__(self, v):
+ BIP32_Account_2of2.__init__(self, v)
+ self.c3 = v['c3'].decode('hex')
+ self.K3 = v['K3'].decode('hex')
+ self.cK3 = v['cK3'].decode('hex')
+
+ def dump(self):
+ d = BIP32_Account_2of2.dump(self)
+ d['c3'] = self.c3.encode('hex')
+ d['K3'] = self.K3.encode('hex')
+ d['cK3'] = self.cK3.encode('hex')
+ return d
+
+ def get_pubkey3(self, for_change, n):
+ K = self.K3
+ chain = self.c3
+ for i in [for_change, n]:
+ K, K_compressed, chain = CKD_prime(K, chain, i)
+ return K_compressed.encode('hex')
+
+ def get_redeem_script(self, sequence):
chain, i = sequence
pubkey1 = self.get_pubkey(chain, i)
pubkey2 = self.get_pubkey2(chain, i)
- # fixme
- pk_addr = None # public_key_to_bc_address( pubkey1 ) # we need to return that address to get the right private key
- redeemScript = Transaction.multisig_script([pubkey1.encode('hex'), pubkey2.encode('hex')], 2)['redeemScript']
- return pk_addr, redeemScript
+ pubkey3 = self.get_pubkey3(chain, i)
+ return Transaction.multisig_script([pubkey1, pubkey2, pubkey3], 3)
+
git://git.novaco.in / electrum-nvc.git / blobdiff