get_pubkey_from_x

[electrum-nvc.git] / lib / account.py

diff --git a/lib/account.py b/lib/account.py
index 9a262bf..37ddc60 100644 (file)
--- a/lib/account.py
+++ b/lib/account.py
@@ -18,6 +18,7 @@
 
 
 from bitcoin import *
+from i18n import _
 from transaction import Transaction
 
 class Account(object):
@@ -108,27 +109,34 @@ class OldAccount(Account):
         master_private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
         master_public_key = master_private_key.get_verifying_key().to_string()
         if master_public_key != self.mpk:
-            print_error('invalid password (mpk)')
+            print_error('invalid password (mpk)', self.mpk.encode('hex'), master_public_key.encode('hex'))
             raise Exception('Invalid password')
         return True
 
     def redeem_script(self, sequence):
         return None
 
+    def get_master_pubkeys(self):
+        return [self.mpk]
+
+    def get_type(self):
+        return _('Old Electrum format')
+
+    def get_keyID(self, sequence):
+        a, b = sequence
+        return 'old(%s,%d,%d)'%(self.mpk,a,b)
+
+
 
 class BIP32_Account(Account):
 
     def __init__(self, v):
         Account.__init__(self, v)
-        self.c = v['c'].decode('hex')
-        self.K = v['K'].decode('hex')
-        self.cK = v['cK'].decode('hex')
+        self.xpub = v['xpub']
 
     def dump(self):
         d = Account.dump(self)
-        d['c'] = self.c.encode('hex')
-        d['K'] = self.K.encode('hex')
-        d['cK'] = self.cK.encode('hex')
+        d['xpub'] = self.xpub
         return d
 
     def get_address(self, for_change, n):
@@ -139,85 +147,75 @@ class BIP32_Account(Account):
     def first_address(self):
         return self.get_address(0,0)
 
-    def get_pubkey(self, for_change, n):
-        K = self.K
-        chain = self.c
+    def get_master_pubkeys(self):
+        return [self.xpub]
+
+    def get_pubkey_from_x(self, xpub, for_change, n):
+        _, _, _, c, cK = deserialize_xkey(xpub)
         for i in [for_change, n]:
-            K, K_compressed, chain = CKD_prime(K, chain, i)
-        return K_compressed.encode('hex')
+            cK, c = CKD_pub(cK, c, i)
+        return cK.encode('hex')
+
+    def get_pubkeys(self, sequence):
+        return sorted(map(lambda x: self.get_pubkey_from_x(x, *sequence), self.get_master_pubkeys()))
+
+    def get_pubkey(self, for_change, n):
+        return self.get_pubkeys((for_change, n))[0]
 
     def redeem_script(self, sequence):
         return None
 
+    def get_type(self):
+        return _('Standard 1 of 1')
 
+    def get_keyID(self, sequence):
+        s = '/' + '/'.join( map(lambda x:str(x), sequence) )
+        return '&'.join( map(lambda x: 'bip32(%s,%s)'%(x, s), self.get_master_pubkeys() ) )
 
 
 class BIP32_Account_2of2(BIP32_Account):
 
     def __init__(self, v):
         BIP32_Account.__init__(self, v)
-        self.c2 = v['c2'].decode('hex')
-        self.K2 = v['K2'].decode('hex')
-        self.cK2 = v['cK2'].decode('hex')
+        self.xpub2 = v['xpub2']
 
     def dump(self):
         d = BIP32_Account.dump(self)
-        d['c2'] = self.c2.encode('hex')
-        d['K2'] = self.K2.encode('hex')
-        d['cK2'] = self.cK2.encode('hex')
+        d['xpub2'] = self.xpub2
         return d
 
-    def get_pubkey2(self, for_change, n):
-        K = self.K2
-        chain = self.c2
-        for i in [for_change, n]:
-            K, K_compressed, chain = CKD_prime(K, chain, i)
-        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)
+        pubkeys = self.get_pubkeys(sequence)
+        return Transaction.multisig_script(pubkeys, 2)
 
     def get_address(self, for_change, n):
         address = hash_160_to_bc_address(hash_160(self.redeem_script((for_change, n)).decode('hex')), 5)
         return address
 
-    def get_pubkeys(self, sequence):
-        return [ self.get_pubkey( *sequence ), self.get_pubkey2( *sequence )]
+    def get_master_pubkeys(self):
+        return [self.xpub, self.xpub2]
+
+    def get_type(self):
+        return _('Multisig 2 of 2')
+
 
 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')
+        self.xpub3 = v['xpub3']
 
     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')
+        d['xpub3'] = self.xpub3
         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_master_pubkeys(self):
+        return [self.xpub, self.xpub2, self.xpub3]
 
-    def get_redeem_script(self, sequence):
-        chain, i = sequence
-        pubkey1 = self.get_pubkey(chain, i)
-        pubkey2 = self.get_pubkey2(chain, i)
-        pubkey3 = self.get_pubkey3(chain, i)
-        return Transaction.multisig_script([pubkey1, pubkey2, pubkey3], 3)
+    def get_type(self):
+        return _('Multisig 2 of 3')
 
-    def get_pubkeys(self, sequence):
-        return [ self.get_pubkey( *sequence ), self.get_pubkey2( *sequence ), self.get_pubkey3( *sequence )]