-class ElectrumSequence:
- """ 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 bip32_private_derivation(k, c, branch, sequence):
+ assert sequence.startswith(branch)
+ sequence = sequence[len(branch):]
+ for n in sequence.split('/'):
+ if n == '': continue
+ n = int(n[:-1]) + BIP32_PRIME if n[-1] == "'" else int(n)
+ k, c = CKD(k, c, n)
+ K, K_compressed = get_pubkeys_from_secret(k)
+ return k.encode('hex'), c.encode('hex'), K.encode('hex'), K_compressed.encode('hex')
- @classmethod
- def mpk_from_seed(klass, seed):
- curve = SECP256k1
- secexp = klass.stretch_key(seed)
- master_private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
- master_public_key = master_private_key.get_verifying_key().to_string().encode('hex')
- return master_public_key
- @classmethod
- def stretch_key(self,seed):
- oldseed = seed
- for i in range(100000):
- 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"]
- return address
-
- def get_pubkey(self, sequence, mpk=None):
- 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 )
- 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):
- order = generator_secp256k1.order()
- secexp = ( secexp + self.get_sequence(sequence, self.mpk) ) % 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):
- secexp = self.stretch_key(seed)
- return [ self.get_private_key_from_stretched_exponent( sequence, secexp) for sequence in sequence_list]
-
- def check_seed(self, seed):
- curve = SECP256k1
- secexp = self.stretch_key(seed)
- master_private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
- master_public_key = master_private_key.get_verifying_key().to_string().encode('hex')
- if master_public_key != self.mpk:
- print_error('invalid password (mpk)')
- 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 bip32_public_derivation(c, K, branch, sequence):
+ assert sequence.startswith(branch)
+ sequence = sequence[len(branch):]
+ for n in sequence.split('/'):
+ n = int(n)
+ K, cK, c = CKD_prime(K, c, n)
+ return c.encode('hex'), K.encode('hex'), cK.encode('hex')
-class BIP32Sequence:
- def __init__(self, mpk, mpk2 = None, mpk3 = None):
- self.mpk = mpk
- self.mpk2 = mpk2
- self.mpk3 = mpk3
-
- @classmethod
- def mpk_from_seed(klass, seed):
- master_secret, master_chain, master_public_key, master_public_key_compressed = bip32_init(seed)
- return master_public_key.encode('hex'), master_chain.encode('hex')
-
- def get_pubkey(self, sequence, mpk = None):
- if not mpk: mpk = self.mpk
- master_public_key, master_chain = mpk
- K = master_public_key.decode('hex')
- chain = master_chain.decode('hex')
- for i in sequence:
- K, K_compressed, chain = CKD_prime(K, chain, i)
- return K_compressed.encode('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"]
- return address
-
- def get_private_key(self, sequence, seed):
- master_secret, master_chain, master_public_key, master_public_key_compressed = bip32_init(seed)
- chain = master_chain
- k = master_secret
- for i in sequence:
- k, chain = CKD(k, chain, i)
- return SecretToASecret(k, True)
-
- def get_private_keys(self, sequence_list, seed):
- return [ self.get_private_key( sequence, seed) for sequence in sequence_list]
-
- 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):
- 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
################################## transactions
txin = self.inputs[i]
tx_for_sig = self.serialize( self.inputs, self.outputs, for_sig = i )
- if txin.get('redeemScript'):
+ redeem_script = txin.get('redeemScript')
+ if redeem_script:
# 1 parse the redeem script
- num, redeem_pubkeys = deserialize.parse_redeemScript(txin.get('redeemScript'))
+ num, redeem_pubkeys = deserialize.parse_redeemScript(redeem_script)
self.inputs[i]["pubkeys"] = redeem_pubkeys
# build list of public/private keys
pubkey = GetPubKey(pkey.pubkey, compressed)
keypairs[ pubkey.encode('hex') ] = sec
+ print "keypairs", keypairs
+ print redeem_script, redeem_pubkeys
+
# list of already existing signatures
signatures = txin.get("signatures",[])
print_error("signatures",signatures)
for pubkey in redeem_pubkeys:
- public_key = ecdsa.VerifyingKey.from_string(pubkey[2:].decode('hex'), curve = SECP256k1)
- for s in signatures:
- try:
- public_key.verify_digest( s.decode('hex')[:-1], Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der)
- break
- except ecdsa.keys.BadSignatureError:
- continue
- else:
+
+ # here we have compressed key.. it won't work
+ #public_key = ecdsa.VerifyingKey.from_string(pubkey[2:].decode('hex'), curve = SECP256k1)
+ #for s in signatures:
+ # try:
+ # public_key.verify_digest( s.decode('hex')[:-1], Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der)
+ # break
+ # except ecdsa.keys.BadSignatureError:
+ # continue
+ #else:
+ if 1:
# check if we have a key corresponding to the redeem script
if pubkey in keypairs.keys():
# add signature
compressed = is_compressed(sec)
pkey = regenerate_key(sec)
secexp = pkey.secret
-
private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
public_key = private_key.get_verifying_key()
pkey = EC_KEY(secexp)
git://git.novaco.in / electrum-nvc.git / blobdiff