tBIP32_HD_Wallet: Fix address derivation - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
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DIR Files
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---
DIR commit 3d781a2d1b93d33b7232ba95b8f11e583e8ad436
DIR parent 4743f033b4f1761bb8971b01ca94cee72b671531
HTML Author: Neil Booth <kyuupichan@gmail.com>
Date: Sun, 10 Jan 2016 19:53:28 +0900
BIP32_HD_Wallet: Fix address derivation
Unfortunately there was root_name and root_derivation confusion
in the past for classes derived from BIP_32_HD_Wallet.
Address derivation used root_name and so would begin with 'x/'
whereas it should have begun with root_derivation, and so started
with 'm/'.
This fixes that old wart and removes some fudges from the trezor
code that used to work around it.
Diffstat:
M lib/wallet.py | 20 +++++++-------------
M plugins/ledger/ledger.py | 4 ++++
M plugins/trezor/client.py | 2 +-
M plugins/trezor/plugin.py | 1 -
4 files changed, 12 insertions(+), 15 deletions(-)
---
DIR diff --git a/lib/wallet.py b/lib/wallet.py
t@@ -1668,19 +1668,15 @@ class BIP32_HD_Wallet(BIP32_Wallet):
# drop unused master public key to avoid duplicate errors
acc2 = storage.get('next_account2', None)
if acc2:
- storage.put('next_account2', None)
self.master_public_keys.pop(self.root_name + acc2[0] + "'", None)
- self.storage.put('master_public_keys', self.master_public_keys)
+ storage.put('next_account2', None)
+ storage.put('master_public_keys', self.master_public_keys)
def next_account_number(self):
assert (set(self.accounts.keys()) ==
set(['%d' % n for n in range(len(self.accounts))]))
return len(self.accounts)
- def next_derivation(self):
- account_id = '%d' % self.next_account_number()
- return self.root_name + account_id + "'", account_id
-
def show_account(self, account_id):
return self.account_is_used(account_id) or account_id in self.labels
t@@ -1711,8 +1707,10 @@ class BIP32_HD_Wallet(BIP32_Wallet):
self.create_next_account(password)
def create_next_account(self, password, label=None):
- derivation, account_id = self.next_derivation()
- xpub, xprv = self.derive_xkeys(self.root_name, derivation, password)
+ account_id = '%d' % self.next_account_number()
+ derivation = self.account_derivation(account_id)
+ root_name = self.root_derivation.split('/')[0] # NOT self.root_name!
+ xpub, xprv = self.derive_xkeys(root_name, derivation, password)
self.add_master_public_key(derivation, xpub)
if xprv:
self.add_master_private_key(derivation, xprv, password)
t@@ -1729,12 +1727,8 @@ class BIP32_HD_Wallet(BIP32_Wallet):
return all(self.account_is_used(acc_id) for acc_id in self.accounts)
@classmethod
- def prefix(self):
- return "/".join(self.root_derivation.split("/")[1:])
-
- @classmethod
def account_derivation(self, account_id):
- return self.prefix() + "/" + account_id + "'"
+ return self.root_derivation + "/" + account_id + "'"
@classmethod
def address_derivation(self, account_id, change, address_index):
DIR diff --git a/plugins/ledger/ledger.py b/plugins/ledger/ledger.py
t@@ -63,6 +63,10 @@ class BTChipWallet(BIP44_Wallet):
assert not self.has_seed()
return self.force_watching_only
+ def address_id(self, address):
+ # Strip the leading "m/"
+ return BIP44_Wallet.address_id(self, address)[2:]
+
def get_client(self, noPin=False):
if not BTCHIP:
self.give_error('please install github.com/btchip/btchip-python')
DIR diff --git a/plugins/trezor/client.py b/plugins/trezor/client.py
t@@ -98,7 +98,7 @@ def trezor_client_class(protocol_mixin, base_client, proto):
'''Convert bip32 path to list of uint32 integers with prime flags
0/-1/1' -> [0, 0x80000001, 0x80000001]'''
path = []
- for x in n.split('/'):
+ for x in n.split('/')[1:]:
prime = 0
if x.endswith("'"):
x = x.replace('\'', '')
DIR diff --git a/plugins/trezor/plugin.py b/plugins/trezor/plugin.py
t@@ -100,7 +100,6 @@ class TrezorCompatibleWallet(BIP44_Wallet):
# When creating a wallet we need to ask the device for the
# master public key
- derivation = derivation.replace(self.root_name, self.prefix() + "/")
xpub = self.get_public_key(derivation)
return xpub, None