mangle (for_change, index) everywhere
authorthomasv <thomasv@gitorious>
Sun, 3 Mar 2013 09:24:30 +0000 (10:24 +0100)
committerthomasv <thomasv@gitorious>
Sun, 3 Mar 2013 09:24:30 +0000 (10:24 +0100)
lib/bitcoin.py
lib/wallet.py

index ebfb6da..c081c89 100644 (file)
@@ -438,23 +438,25 @@ class DeterministicSequence:
             seed = hashlib.sha256(seed + oldseed).digest()
         return string_to_number( seed )
 
-    def get_sequence(self, n, for_change):
+    def get_sequence(self, sequence):
+        for_change, n = sequence
         return string_to_number( Hash( "%d:%d:"%(n,for_change) + self.master_public_key.decode('hex') ) )
 
-    def get_address(self, for_change, n):
+    def get_address(self, sequence):
         if not self.is_p2sh:
-            pubkey = self.get_pubkey(n, for_change)
+            pubkey = self.get_pubkey(sequence)
             address = public_key_to_bc_address( pubkey.decode('hex') )
         else:
-            pubkey1 = self.get_pubkey(n, for_change)
-            pubkey2 = self.get_pubkey2(n, for_change)
+            pubkey1 = self.get_pubkey(sequence)
+            pubkey2 = self.get_pubkey2(sequence)
             address = Transaction.multisig_script([pubkey1, pubkey2], 2)["address"]
         return address
 
     #sec = self.p2sh_sequence.get_private_key(n, for_change, seed)
     #addr = hash_160_to_bc_address(hash_160(txin["redeemScript"].decode('hex')), 5)
 
-    def get_pubkey2(self, n, for_change):
+    def get_pubkey2(self, sequence):
+        for_change, n = sequence
         curve = SECP256k1
         z = string_to_number( Hash( "%d:%d:"%(n, for_change) + self.mpk2.decode('hex') ) )
         master_public_key = ecdsa.VerifyingKey.from_string( self.mpk2.decode('hex'), curve = SECP256k1 )
@@ -462,24 +464,24 @@ class DeterministicSequence:
         public_key2 = ecdsa.VerifyingKey.from_public_point( pubkey_point, curve = SECP256k1 )
         return '04' + public_key2.to_string().encode('hex')
 
-    def get_pubkey(self, n, for_change):
+    def get_pubkey(self, sequence):
         curve = SECP256k1
-        z = self.get_sequence(n, for_change)
+        z = self.get_sequence(sequence)
         master_public_key = ecdsa.VerifyingKey.from_string( self.master_public_key.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, n, for_change, secexp):
+    def get_private_key_from_stretched_exponent(self, sequence, secexp):
         order = generator_secp256k1.order()
-        secexp = ( secexp + self.get_sequence(n,for_change) ) % order
+        secexp = ( secexp + self.get_sequence(sequence) ) % order
         pk = number_to_string( secexp, generator_secp256k1.order() )
         compressed = False
         return SecretToASecret( pk, compressed )
         
-    def get_private_key(self, n, for_change, seed):
+    def get_private_key(self, sequence, seed):
         secexp = self.stretch_key(seed)
-        return self.get_private_key_from_stretched_exponent(n, for_change, secexp)
+        return self.get_private_key_from_stretched_exponent(sequence, secexp)
 
     def check_seed(self, seed):
         curve = SECP256k1
@@ -493,14 +495,14 @@ class DeterministicSequence:
         return True
 
 
-    def get_input_info(self, is_change, n):
+    def get_input_info(self, sequence):
 
         if not self.is_p2sh:
-            pk_addr = self.get_address(is_change, n)
+            pk_addr = self.get_address(sequence)
             redeemScript = None
         else:
-            pubkey1 = self.get_pubkey(n, is_change)
-            pubkey2 = self.get_pubkey2(n, is_change)
+            pubkey1 = self.get_pubkey(sequence)
+            pubkey2 = self.get_pubkey2(sequence)
             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']
 
index baac070..69be507 100644 (file)
@@ -224,13 +224,13 @@ class Wallet:
                 addresses = self.accounts[account][for_change]
                 for addr in addresses:
                     if address == addr:
-                        return account, for_change, addresses.index(addr)
+                        return account, (for_change, addresses.index(addr))
         raise BaseException("not found")
         
 
     def get_public_key(self, address):
-        account, n, for_change = self.get_address_index(address)
-        return self.sequences[account].get_pubkey(n, for_change)
+        account, sequence = self.get_address_index(address)
+        return self.sequences[account].get_pubkey( sequence )
 
 
     def decode_seed(self, password):
@@ -250,9 +250,9 @@ class Wallet:
             if address in self.imported_keys.keys():
                 out[address] = pw_decode( self.imported_keys[address], password )
             else:
-                account, for_change, n = self.get_address_index(address)
+                account, sequence = self.get_address_index(address)
                 if account == 0:
-                    out[address] = self.sequences[0].get_private_key_from_stretched_exponent(n, for_change, secexp)
+                    out[address] = self.sequences[0].get_private_key_from_stretched_exponent( sequence, secexp)
         return out
 
 
@@ -289,9 +289,9 @@ class Wallet:
 
             # find the address:
             if txin.get('electrumKeyID'):
-                account, for_change, n = txin.get('electrumKeyID')
-                sec = self.sequences[account].get_private_key(n, for_change, seed)
-                addr = self.sequences[account].get_address(n, for_change)
+                account, sequence = txin.get('electrumKeyID')
+                sec = self.sequences[account].get_private_key(sequence, seed)
+                addr = self.sequences[account].get_address(sequence)
                 txin['address'] = addr
                 private_keys[addr] = sec
 
@@ -325,7 +325,7 @@ class Wallet:
         
 
     def get_new_address(self, account, for_change, n):
-        return self.sequences[account].get_address(for_change, n)
+        return self.sequences[account].get_address((for_change, n))
         print address
         return address
 
@@ -626,6 +626,7 @@ class Wallet:
         else:
             #print "not enough funds: %s %s"%(format_satoshis(total), format_satoshis(fee))
             inputs = []
+
         return inputs, total, fee
 
     def add_tx_change( self, outputs, amount, fee, total, change_addr=None ):
@@ -789,9 +790,9 @@ class Wallet:
             if address in self.imported_keys.keys(): 
                 pk_addresses.append(address)
                 continue
-            account, is_change, n = self.get_address_index(address)
-            txin['electrumKeyID'] = (account, is_change, n) # used by the server to find the key
-            pk_addr, redeemScript = self.sequences[account].get_input_info(is_change, n)
+            account, sequence = self.get_address_index(address)
+            txin['electrumKeyID'] = (account, sequence) # used by the server to find the key
+            pk_addr, redeemScript = self.sequences[account].get_input_info(sequence)
             if redeemScript: txin['redeemScript'] = redeemScript
             pk_addresses.append(pk_addr)