Browse Source

Add support for Archos Safe-T mini hardware wallet (#4445)

commit 10c46477f3a6f2fbc0596345511e0994253081eb
Author: SomberNight <somber.night@protonmail.com>
Date:   Wed Jul 25 19:40:05 2018 +0200

    backport changes of trezor plugin

commit 213619e880f709188c1ea6272758896748e681a8
Merge: a855b75b6 6899ca252
Author: Jean-Christophe Rona <jc@rona.fr>
Date:   Wed Jul 25 18:45:19 2018 +0200

    Merge branch 'master' into safe-t-mini

commit a855b75b6f5af5f707c4680d0bac79eb66a85ace
Author: Jean-Christophe Rona <rona@archos.com>
Date:   Wed Jul 25 18:37:12 2018 +0200

    Safe-T: Switch to safet 0.1.3 to remove the rlp dependency

commit 9bee44ca33289158c91c03d47dec45de6577f17b
Author: SomberNight <somber.night@protonmail.com>
Date:   Wed Jul 18 14:01:10 2018 +0200

    safe-t: bump min fw to 1.0.5

    older fw has a bug when restoring from seed

commit 01816607e8ba308cb5cff96b5fb844e4f6b8fcc1
Author: SomberNight <somber.night@protonmail.com>
Date:   Wed Jul 18 13:57:17 2018 +0200

    safe-t: fix rlp version to avoid eth stuff

commit 430206bea1fa10b762ff953fbc7652ce0d0e939d
Merge: a999ae266 b4b862b0c
Author: SomberNight <somber.night@protonmail.com>
Date:   Wed Jul 18 13:29:41 2018 +0200

    Merge branch 'master' into pr/4445

commit a999ae266f499f180946d53d4e860cc871d562ab
Author: Jean-Christophe Rona <rona@archos.com>
Date:   Tue Jun 19 14:18:03 2018 +0200

    Safe-T mini: Remove supported coins

    This is not really useful there.

commit 7922df1031b2c4b132f7f9c90232480b5bf9585c
Author: Jean-Christophe Rona <rona@archos.com>
Date:   Tue May 29 16:43:37 2018 +0200

    Safe-T mini: Add support for the Safe-T mini
3.2.x
Jean-Christophe Rona 7 years ago
committed by SomberNight
parent
commit
02c30e3d52
No known key found for this signature in database GPG Key ID: B33B5F232C6271E9
  1. 6
      contrib/build-osx/osx.spec
  2. 4
      contrib/build-wine/deterministic.spec
  3. 3
      contrib/deterministic-build/requirements-hw.txt
  4. 1
      contrib/requirements/requirements-hw.txt
  5. 8
      electrum/plugins/safe_t/__init__.py
  6. 11
      electrum/plugins/safe_t/client.py
  7. 252
      electrum/plugins/safe_t/clientbase.py
  8. 14
      electrum/plugins/safe_t/cmdline.py
  9. 492
      electrum/plugins/safe_t/qt.py
  10. 508
      electrum/plugins/safe_t/safe_t.py
  11. 95
      electrum/plugins/safe_t/transport.py
  12. 4
      electrum/storage.py
  13. 2
      electrum/transaction.py
  14. 2
      icons.qrc
  15. BIN
      icons/safe-t.png
  16. BIN
      icons/safe-t_unpaired.png

6
contrib/build-osx/osx.spec

@ -23,6 +23,7 @@ block_cipher = None
# see https://github.com/pyinstaller/pyinstaller/issues/2005
hiddenimports = []
hiddenimports += collect_submodules('trezorlib')
hiddenimports += collect_submodules('safetlib')
hiddenimports += collect_submodules('btchip')
hiddenimports += collect_submodules('keepkeylib')
hiddenimports += collect_submodules('websocket')
@ -33,10 +34,11 @@ datas = [
(electrum+'electrum/locale', PYPKG + '/locale')
]
datas += collect_data_files('trezorlib')
datas += collect_data_files('safetlib')
datas += collect_data_files('btchip')
datas += collect_data_files('keepkeylib')
# Add libusb so Trezor will work
# Add libusb so Trezor and Safe-T mini will work
binaries = [(electrum + "contrib/build-osx/libusb-1.0.dylib", ".")]
binaries += [(electrum + "contrib/build-osx/libsecp256k1.0.dylib", ".")]
@ -57,6 +59,8 @@ a = Analysis([electrum+ MAIN_SCRIPT,
electrum+'electrum/plugins/email_requests/qt.py',
electrum+'electrum/plugins/trezor/client.py',
electrum+'electrum/plugins/trezor/qt.py',
electrum+'electrum/plugins/safe_t/client.py',
electrum+'electrum/plugins/safe_t/qt.py',
electrum+'electrum/plugins/keepkey/qt.py',
electrum+'electrum/plugins/ledger/qt.py',
],

4
contrib/build-wine/deterministic.spec

@ -18,6 +18,7 @@ home = 'C:\\electrum\\'
# see https://github.com/pyinstaller/pyinstaller/issues/2005
hiddenimports = []
hiddenimports += collect_submodules('trezorlib')
hiddenimports += collect_submodules('safetlib')
hiddenimports += collect_submodules('btchip')
hiddenimports += collect_submodules('keepkeylib')
hiddenimports += collect_submodules('websocket')
@ -37,6 +38,7 @@ datas = [
('C:\\Program Files (x86)\\ZBar\\bin\\', '.')
]
datas += collect_data_files('trezorlib')
datas += collect_data_files('safetlib')
datas += collect_data_files('btchip')
datas += collect_data_files('keepkeylib')
@ -54,6 +56,8 @@ a = Analysis([home+'run_electrum',
home+'electrum/plugins/email_requests/qt.py',
home+'electrum/plugins/trezor/client.py',
home+'electrum/plugins/trezor/qt.py',
home+'electrum/plugins/safe_t/client.py',
home+'electrum/plugins/safe_t/qt.py',
home+'electrum/plugins/keepkey/qt.py',
home+'electrum/plugins/ledger/qt.py',
#home+'packages/requests/utils.py'

3
contrib/deterministic-build/requirements-hw.txt

@ -94,6 +94,9 @@ pyblake2==1.1.2 \
requests==2.19.1 \
--hash=sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1 \
--hash=sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a
safet==0.1.3 \
--hash=sha256:ba80fe9f6ba317ab9514a8726cd3792e68eb46dd419f380d48ae4a0ccae646dc \
--hash=sha256:e5d8e6a87c8bdf1cefd07004181b93fd7631557fdab09d143ba8d1b29291d6dc
setuptools==40.0.0 \
--hash=sha256:012adb8e25fbfd64c652e99e7bab58799a3aaf05d39ab38561f69190a909015f \
--hash=sha256:d68abee4eed409fbe8c302ac4d8429a1ffef912cd047a903b5701c024048dd49

1
contrib/requirements/requirements-hw.txt

@ -1,5 +1,6 @@
Cython>=0.27
trezor[hidapi]>=0.9.0
safet[hidapi]>=0.1.0
keepkey
btchip-python
websocket-client

8
electrum/plugins/safe_t/__init__.py

@ -0,0 +1,8 @@
from electrum.i18n import _
fullname = 'Safe-T mini Wallet'
description = _('Provides support for Safe-T mini hardware wallet')
requires = [('safetlib','github.com/archos-safe-t/python-safet')]
registers_keystore = ('hardware', 'safe_t', _("Safe-T mini wallet"))
available_for = ['qt', 'cmdline']

11
electrum/plugins/safe_t/client.py

@ -0,0 +1,11 @@
from safetlib.client import proto, BaseClient, ProtocolMixin
from .clientbase import SafeTClientBase
class SafeTClient(SafeTClientBase, ProtocolMixin, BaseClient):
def __init__(self, transport, handler, plugin):
BaseClient.__init__(self, transport=transport)
ProtocolMixin.__init__(self, transport=transport)
SafeTClientBase.__init__(self, handler, plugin, proto)
SafeTClientBase.wrap_methods(SafeTClient)

252
electrum/plugins/safe_t/clientbase.py

@ -0,0 +1,252 @@
import time
from struct import pack
from electrum.i18n import _
from electrum.util import PrintError, UserCancelled
from electrum.keystore import bip39_normalize_passphrase
from electrum.bitcoin import serialize_xpub
class GuiMixin(object):
# Requires: self.proto, self.device
# ref: https://github.com/trezor/trezor-common/blob/44dfb07cfaafffada4b2ce0d15ba1d90d17cf35e/protob/types.proto#L89
messages = {
3: _("Confirm the transaction output on your {} device"),
4: _("Confirm internal entropy on your {} device to begin"),
5: _("Write down the seed word shown on your {}"),
6: _("Confirm on your {} that you want to wipe it clean"),
7: _("Confirm on your {} device the message to sign"),
8: _("Confirm the total amount spent and the transaction fee on your "
"{} device"),
10: _("Confirm wallet address on your {} device"),
14: _("Choose on your {} device where to enter your passphrase"),
'default': _("Check your {} device to continue"),
}
def callback_Failure(self, msg):
# BaseClient's unfortunate call() implementation forces us to
# raise exceptions on failure in order to unwind the stack.
# However, making the user acknowledge they cancelled
# gets old very quickly, so we suppress those. The NotInitialized
# one is misnamed and indicates a passphrase request was cancelled.
if msg.code in (self.types.FailureType.PinCancelled,
self.types.FailureType.ActionCancelled,
self.types.FailureType.NotInitialized):
raise UserCancelled()
raise RuntimeError(msg.message)
def callback_ButtonRequest(self, msg):
message = self.msg
if not message:
message = self.messages.get(msg.code, self.messages['default'])
self.handler.show_message(message.format(self.device), self.cancel)
return self.proto.ButtonAck()
def callback_PinMatrixRequest(self, msg):
if msg.type == 2:
msg = _("Enter a new PIN for your {}:")
elif msg.type == 3:
msg = (_("Re-enter the new PIN for your {}.\n\n"
"NOTE: the positions of the numbers have changed!"))
else:
msg = _("Enter your current {} PIN:")
pin = self.handler.get_pin(msg.format(self.device))
if len(pin) > 9:
self.handler.show_error(_('The PIN cannot be longer than 9 characters.'))
pin = '' # to cancel below
if not pin:
return self.proto.Cancel()
return self.proto.PinMatrixAck(pin=pin)
def callback_PassphraseRequest(self, req):
if req and hasattr(req, 'on_device') and req.on_device is True:
return self.proto.PassphraseAck()
if self.creating_wallet:
msg = _("Enter a passphrase to generate this wallet. Each time "
"you use this wallet your {} will prompt you for the "
"passphrase. If you forget the passphrase you cannot "
"access the bitcoins in the wallet.").format(self.device)
else:
msg = _("Enter the passphrase to unlock this wallet:")
passphrase = self.handler.get_passphrase(msg, self.creating_wallet)
if passphrase is None:
return self.proto.Cancel()
passphrase = bip39_normalize_passphrase(passphrase)
ack = self.proto.PassphraseAck(passphrase=passphrase)
length = len(ack.passphrase)
if length > 50:
self.handler.show_error(_("Too long passphrase ({} > 50 chars).").format(length))
return self.proto.Cancel()
return ack
def callback_PassphraseStateRequest(self, msg):
return self.proto.PassphraseStateAck()
def callback_WordRequest(self, msg):
self.step += 1
msg = _("Step {}/24. Enter seed word as explained on "
"your {}:").format(self.step, self.device)
word = self.handler.get_word(msg)
# Unfortunately the device can't handle self.proto.Cancel()
return self.proto.WordAck(word=word)
class SafeTClientBase(GuiMixin, PrintError):
def __init__(self, handler, plugin, proto):
assert hasattr(self, 'tx_api') # ProtocolMixin already constructed?
self.proto = proto
self.device = plugin.device
self.handler = handler
self.tx_api = plugin
self.types = plugin.types
self.msg = None
self.creating_wallet = False
self.used()
def __str__(self):
return "%s/%s" % (self.label(), self.features.device_id)
def label(self):
'''The name given by the user to the device.'''
return self.features.label
def is_initialized(self):
'''True if initialized, False if wiped.'''
return self.features.initialized
def is_pairable(self):
return not self.features.bootloader_mode
def has_usable_connection_with_device(self):
try:
res = self.ping("electrum pinging device")
assert res == "electrum pinging device"
except BaseException:
return False
return True
def used(self):
self.last_operation = time.time()
def prevent_timeouts(self):
self.last_operation = float('inf')
def timeout(self, cutoff):
'''Time out the client if the last operation was before cutoff.'''
if self.last_operation < cutoff:
self.print_error("timed out")
self.clear_session()
@staticmethod
def expand_path(n):
'''Convert bip32 path to list of uint32 integers with prime flags
0/-1/1' -> [0, 0x80000001, 0x80000001]'''
# This code is similar to code in safetlib where it unfortunately
# is not declared as a staticmethod. Our n has an extra element.
PRIME_DERIVATION_FLAG = 0x80000000
path = []
for x in n.split('/')[1:]:
prime = 0
if x.endswith("'"):
x = x.replace('\'', '')
prime = PRIME_DERIVATION_FLAG
if x.startswith('-'):
prime = PRIME_DERIVATION_FLAG
path.append(abs(int(x)) | prime)
return path
def cancel(self):
'''Provided here as in keepkeylib but not safetlib.'''
self.transport.write(self.proto.Cancel())
def i4b(self, x):
return pack('>I', x)
def get_xpub(self, bip32_path, xtype):
address_n = self.expand_path(bip32_path)
creating = False
node = self.get_public_node(address_n, creating).node
return serialize_xpub(xtype, node.chain_code, node.public_key, node.depth, self.i4b(node.fingerprint), self.i4b(node.child_num))
def toggle_passphrase(self):
if self.features.passphrase_protection:
self.msg = _("Confirm on your {} device to disable passphrases")
else:
self.msg = _("Confirm on your {} device to enable passphrases")
enabled = not self.features.passphrase_protection
self.apply_settings(use_passphrase=enabled)
def change_label(self, label):
self.msg = _("Confirm the new label on your {} device")
self.apply_settings(label=label)
def change_homescreen(self, homescreen):
self.msg = _("Confirm on your {} device to change your home screen")
self.apply_settings(homescreen=homescreen)
def set_pin(self, remove):
if remove:
self.msg = _("Confirm on your {} device to disable PIN protection")
elif self.features.pin_protection:
self.msg = _("Confirm on your {} device to change your PIN")
else:
self.msg = _("Confirm on your {} device to set a PIN")
self.change_pin(remove)
def clear_session(self):
'''Clear the session to force pin (and passphrase if enabled)
re-entry. Does not leak exceptions.'''
self.print_error("clear session:", self)
self.prevent_timeouts()
try:
super(SafeTClientBase, self).clear_session()
except BaseException as e:
# If the device was removed it has the same effect...
self.print_error("clear_session: ignoring error", str(e))
def get_public_node(self, address_n, creating):
self.creating_wallet = creating
return super(SafeTClientBase, self).get_public_node(address_n)
def close(self):
'''Called when Our wallet was closed or the device removed.'''
self.print_error("closing client")
self.clear_session()
# Release the device
self.transport.close()
def firmware_version(self):
f = self.features
return (f.major_version, f.minor_version, f.patch_version)
def atleast_version(self, major, minor=0, patch=0):
return self.firmware_version() >= (major, minor, patch)
@staticmethod
def wrapper(func):
'''Wrap methods to clear any message box they opened.'''
def wrapped(self, *args, **kwargs):
try:
self.prevent_timeouts()
return func(self, *args, **kwargs)
finally:
self.used()
self.handler.finished()
self.creating_wallet = False
self.msg = None
return wrapped
@staticmethod
def wrap_methods(cls):
for method in ['apply_settings', 'change_pin',
'get_address', 'get_public_node',
'load_device_by_mnemonic', 'load_device_by_xprv',
'recovery_device', 'reset_device', 'sign_message',
'sign_tx', 'wipe_device']:
setattr(cls, method, cls.wrapper(getattr(cls, method)))

14
electrum/plugins/safe_t/cmdline.py

@ -0,0 +1,14 @@
from electrum.plugin import hook
from .safe_t import SafeTPlugin
from ..hw_wallet import CmdLineHandler
class Plugin(SafeTPlugin):
handler = CmdLineHandler()
@hook
def init_keystore(self, keystore):
if not isinstance(keystore, self.keystore_class):
return
keystore.handler = self.handler
def create_handler(self, window):
return self.handler

492
electrum/plugins/safe_t/qt.py

@ -0,0 +1,492 @@
from functools import partial
import threading
from PyQt5.Qt import Qt
from PyQt5.Qt import QGridLayout, QInputDialog, QPushButton
from PyQt5.Qt import QVBoxLayout, QLabel
from electrum.gui.qt.util import *
from electrum.i18n import _
from electrum.plugin import hook, DeviceMgr
from electrum.util import PrintError, UserCancelled, bh2u
from electrum.wallet import Wallet, Standard_Wallet
from ..hw_wallet.qt import QtHandlerBase, QtPluginBase
from .safe_t import SafeTPlugin, TIM_NEW, TIM_RECOVER, TIM_MNEMONIC
PASSPHRASE_HELP_SHORT =_(
"Passphrases allow you to access new wallets, each "
"hidden behind a particular case-sensitive passphrase.")
PASSPHRASE_HELP = PASSPHRASE_HELP_SHORT + " " + _(
"You need to create a separate Electrum wallet for each passphrase "
"you use as they each generate different addresses. Changing "
"your passphrase does not lose other wallets, each is still "
"accessible behind its own passphrase.")
RECOMMEND_PIN = _(
"You should enable PIN protection. Your PIN is the only protection "
"for your bitcoins if your device is lost or stolen.")
PASSPHRASE_NOT_PIN = _(
"If you forget a passphrase you will be unable to access any "
"bitcoins in the wallet behind it. A passphrase is not a PIN. "
"Only change this if you are sure you understand it.")
class QtHandler(QtHandlerBase):
pin_signal = pyqtSignal(object)
def __init__(self, win, pin_matrix_widget_class, device):
super(QtHandler, self).__init__(win, device)
self.pin_signal.connect(self.pin_dialog)
self.pin_matrix_widget_class = pin_matrix_widget_class
def get_pin(self, msg):
self.done.clear()
self.pin_signal.emit(msg)
self.done.wait()
return self.response
def pin_dialog(self, msg):
# Needed e.g. when resetting a device
self.clear_dialog()
dialog = WindowModalDialog(self.top_level_window(), _("Enter PIN"))
matrix = self.pin_matrix_widget_class()
vbox = QVBoxLayout()
vbox.addWidget(QLabel(msg))
vbox.addWidget(matrix)
vbox.addLayout(Buttons(CancelButton(dialog), OkButton(dialog)))
dialog.setLayout(vbox)
dialog.exec_()
self.response = str(matrix.get_value())
self.done.set()
class QtPlugin(QtPluginBase):
# Derived classes must provide the following class-static variables:
# icon_file
# pin_matrix_widget_class
def create_handler(self, window):
return QtHandler(window, self.pin_matrix_widget_class(), self.device)
@hook
def receive_menu(self, menu, addrs, wallet):
if len(addrs) != 1:
return
for keystore in wallet.get_keystores():
if type(keystore) == self.keystore_class:
def show_address():
keystore.thread.add(partial(self.show_address, wallet, addrs[0], keystore))
menu.addAction(_("Show on {}").format(self.device), show_address)
break
def show_settings_dialog(self, window, keystore):
device_id = self.choose_device(window, keystore)
if device_id:
SettingsDialog(window, self, keystore, device_id).exec_()
def request_safe_t_init_settings(self, wizard, method, device):
vbox = QVBoxLayout()
next_enabled = True
label = QLabel(_("Enter a label to name your device:"))
name = QLineEdit()
hl = QHBoxLayout()
hl.addWidget(label)
hl.addWidget(name)
hl.addStretch(1)
vbox.addLayout(hl)
def clean_text(widget):
text = widget.toPlainText().strip()
return ' '.join(text.split())
if method in [TIM_NEW, TIM_RECOVER]:
gb = QGroupBox()
hbox1 = QHBoxLayout()
gb.setLayout(hbox1)
vbox.addWidget(gb)
gb.setTitle(_("Select your seed length:"))
bg = QButtonGroup()
for i, count in enumerate([12, 18, 24]):
rb = QRadioButton(gb)
rb.setText(_("%d words") % count)
bg.addButton(rb)
bg.setId(rb, i)
hbox1.addWidget(rb)
rb.setChecked(True)
cb_pin = QCheckBox(_('Enable PIN protection'))
cb_pin.setChecked(True)
else:
text = QTextEdit()
text.setMaximumHeight(60)
if method == TIM_MNEMONIC:
msg = _("Enter your BIP39 mnemonic:")
else:
msg = _("Enter the master private key beginning with xprv:")
def set_enabled():
from electrum.keystore import is_xprv
wizard.next_button.setEnabled(is_xprv(clean_text(text)))
text.textChanged.connect(set_enabled)
next_enabled = False
vbox.addWidget(QLabel(msg))
vbox.addWidget(text)
pin = QLineEdit()
pin.setValidator(QRegExpValidator(QRegExp('[1-9]{0,9}')))
pin.setMaximumWidth(100)
hbox_pin = QHBoxLayout()
hbox_pin.addWidget(QLabel(_("Enter your PIN (digits 1-9):")))
hbox_pin.addWidget(pin)
hbox_pin.addStretch(1)
if method in [TIM_NEW, TIM_RECOVER]:
vbox.addWidget(WWLabel(RECOMMEND_PIN))
vbox.addWidget(cb_pin)
else:
vbox.addLayout(hbox_pin)
passphrase_msg = WWLabel(PASSPHRASE_HELP_SHORT)
passphrase_warning = WWLabel(PASSPHRASE_NOT_PIN)
passphrase_warning.setStyleSheet("color: red")
cb_phrase = QCheckBox(_('Enable passphrases'))
cb_phrase.setChecked(False)
vbox.addWidget(passphrase_msg)
vbox.addWidget(passphrase_warning)
vbox.addWidget(cb_phrase)
wizard.exec_layout(vbox, next_enabled=next_enabled)
if method in [TIM_NEW, TIM_RECOVER]:
item = bg.checkedId()
pin = cb_pin.isChecked()
else:
item = ' '.join(str(clean_text(text)).split())
pin = str(pin.text())
return (item, name.text(), pin, cb_phrase.isChecked())
class Plugin(SafeTPlugin, QtPlugin):
icon_unpaired = ":icons/safe-t_unpaired.png"
icon_paired = ":icons/safe-t.png"
@classmethod
def pin_matrix_widget_class(self):
from safetlib.qt.pinmatrix import PinMatrixWidget
return PinMatrixWidget
class SettingsDialog(WindowModalDialog):
'''This dialog doesn't require a device be paired with a wallet.
We want users to be able to wipe a device even if they've forgotten
their PIN.'''
def __init__(self, window, plugin, keystore, device_id):
title = _("{} Settings").format(plugin.device)
super(SettingsDialog, self).__init__(window, title)
self.setMaximumWidth(540)
devmgr = plugin.device_manager()
config = devmgr.config
handler = keystore.handler
thread = keystore.thread
hs_rows, hs_cols = (64, 128)
def invoke_client(method, *args, **kw_args):
unpair_after = kw_args.pop('unpair_after', False)
def task():
client = devmgr.client_by_id(device_id)
if not client:
raise RuntimeError("Device not connected")
if method:
getattr(client, method)(*args, **kw_args)
if unpair_after:
devmgr.unpair_id(device_id)
return client.features
thread.add(task, on_success=update)
def update(features):
self.features = features
set_label_enabled()
if features.bootloader_hash:
bl_hash = bh2u(features.bootloader_hash)
bl_hash = "\n".join([bl_hash[:32], bl_hash[32:]])
else:
bl_hash = "N/A"
noyes = [_("No"), _("Yes")]
endis = [_("Enable Passphrases"), _("Disable Passphrases")]
disen = [_("Disabled"), _("Enabled")]
setchange = [_("Set a PIN"), _("Change PIN")]
version = "%d.%d.%d" % (features.major_version,
features.minor_version,
features.patch_version)
device_label.setText(features.label)
pin_set_label.setText(noyes[features.pin_protection])
passphrases_label.setText(disen[features.passphrase_protection])
bl_hash_label.setText(bl_hash)
label_edit.setText(features.label)
device_id_label.setText(features.device_id)
initialized_label.setText(noyes[features.initialized])
version_label.setText(version)
clear_pin_button.setVisible(features.pin_protection)
clear_pin_warning.setVisible(features.pin_protection)
pin_button.setText(setchange[features.pin_protection])
pin_msg.setVisible(not features.pin_protection)
passphrase_button.setText(endis[features.passphrase_protection])
language_label.setText(features.language)
def set_label_enabled():
label_apply.setEnabled(label_edit.text() != self.features.label)
def rename():
invoke_client('change_label', label_edit.text())
def toggle_passphrase():
title = _("Confirm Toggle Passphrase Protection")
currently_enabled = self.features.passphrase_protection
if currently_enabled:
msg = _("After disabling passphrases, you can only pair this "
"Electrum wallet if it had an empty passphrase. "
"If its passphrase was not empty, you will need to "
"create a new wallet with the install wizard. You "
"can use this wallet again at any time by re-enabling "
"passphrases and entering its passphrase.")
else:
msg = _("Your current Electrum wallet can only be used with "
"an empty passphrase. You must create a separate "
"wallet with the install wizard for other passphrases "
"as each one generates a new set of addresses.")
msg += "\n\n" + _("Are you sure you want to proceed?")
if not self.question(msg, title=title):
return
invoke_client('toggle_passphrase', unpair_after=currently_enabled)
def change_homescreen():
dialog = QFileDialog(self, _("Choose Homescreen"))
filename, __ = dialog.getOpenFileName()
if not filename:
return # user cancelled
if filename.endswith('.toif'):
img = open(filename, 'rb').read()
if img[:8] != b'TOIf\x90\x00\x90\x00':
handler.show_error('File is not a TOIF file with size of 144x144')
return
else:
from PIL import Image # FIXME
im = Image.open(filename)
if im.size != (128, 64):
handler.show_error('Image must be 128 x 64 pixels')
return
im = im.convert('1')
pix = im.load()
img = bytearray(1024)
for j in range(64):
for i in range(128):
if pix[i, j]:
o = (i + j * 128)
img[o // 8] |= (1 << (7 - o % 8))
img = bytes(img)
invoke_client('change_homescreen', img)
def clear_homescreen():
invoke_client('change_homescreen', b'\x00')
def set_pin():
invoke_client('set_pin', remove=False)
def clear_pin():
invoke_client('set_pin', remove=True)
def wipe_device():
wallet = window.wallet
if wallet and sum(wallet.get_balance()):
title = _("Confirm Device Wipe")
msg = _("Are you SURE you want to wipe the device?\n"
"Your wallet still has bitcoins in it!")
if not self.question(msg, title=title,
icon=QMessageBox.Critical):
return
invoke_client('wipe_device', unpair_after=True)
def slider_moved():
mins = timeout_slider.sliderPosition()
timeout_minutes.setText(_("%2d minutes") % mins)
def slider_released():
config.set_session_timeout(timeout_slider.sliderPosition() * 60)
# Information tab
info_tab = QWidget()
info_layout = QVBoxLayout(info_tab)
info_glayout = QGridLayout()
info_glayout.setColumnStretch(2, 1)
device_label = QLabel()
pin_set_label = QLabel()
passphrases_label = QLabel()
version_label = QLabel()
device_id_label = QLabel()
bl_hash_label = QLabel()
bl_hash_label.setWordWrap(True)
language_label = QLabel()
initialized_label = QLabel()
rows = [
(_("Device Label"), device_label),
(_("PIN set"), pin_set_label),
(_("Passphrases"), passphrases_label),
(_("Firmware Version"), version_label),
(_("Device ID"), device_id_label),
(_("Bootloader Hash"), bl_hash_label),
(_("Language"), language_label),
(_("Initialized"), initialized_label),
]
for row_num, (label, widget) in enumerate(rows):
info_glayout.addWidget(QLabel(label), row_num, 0)
info_glayout.addWidget(widget, row_num, 1)
info_layout.addLayout(info_glayout)
# Settings tab
settings_tab = QWidget()
settings_layout = QVBoxLayout(settings_tab)
settings_glayout = QGridLayout()
# Settings tab - Label
label_msg = QLabel(_("Name this {}. If you have multiple devices "
"their labels help distinguish them.")
.format(plugin.device))
label_msg.setWordWrap(True)
label_label = QLabel(_("Device Label"))
label_edit = QLineEdit()
label_edit.setMinimumWidth(150)
label_edit.setMaxLength(plugin.MAX_LABEL_LEN)
label_apply = QPushButton(_("Apply"))
label_apply.clicked.connect(rename)
label_edit.textChanged.connect(set_label_enabled)
settings_glayout.addWidget(label_label, 0, 0)
settings_glayout.addWidget(label_edit, 0, 1, 1, 2)
settings_glayout.addWidget(label_apply, 0, 3)
settings_glayout.addWidget(label_msg, 1, 1, 1, -1)
# Settings tab - PIN
pin_label = QLabel(_("PIN Protection"))
pin_button = QPushButton()
pin_button.clicked.connect(set_pin)
settings_glayout.addWidget(pin_label, 2, 0)
settings_glayout.addWidget(pin_button, 2, 1)
pin_msg = QLabel(_("PIN protection is strongly recommended. "
"A PIN is your only protection against someone "
"stealing your bitcoins if they obtain physical "
"access to your {}.").format(plugin.device))
pin_msg.setWordWrap(True)
pin_msg.setStyleSheet("color: red")
settings_glayout.addWidget(pin_msg, 3, 1, 1, -1)
# Settings tab - Homescreen
homescreen_label = QLabel(_("Homescreen"))
homescreen_change_button = QPushButton(_("Change..."))
homescreen_clear_button = QPushButton(_("Reset"))
homescreen_change_button.clicked.connect(change_homescreen)
try:
import PIL
except ImportError:
homescreen_change_button.setDisabled(True)
homescreen_change_button.setToolTip(
_("Required package 'PIL' is not available - Please install it.")
)
homescreen_clear_button.clicked.connect(clear_homescreen)
homescreen_msg = QLabel(_("You can set the homescreen on your "
"device to personalize it. You must "
"choose a {} x {} monochrome black and "
"white image.").format(hs_rows, hs_cols))
homescreen_msg.setWordWrap(True)
settings_glayout.addWidget(homescreen_label, 4, 0)
settings_glayout.addWidget(homescreen_change_button, 4, 1)
settings_glayout.addWidget(homescreen_clear_button, 4, 2)
settings_glayout.addWidget(homescreen_msg, 5, 1, 1, -1)
# Settings tab - Session Timeout
timeout_label = QLabel(_("Session Timeout"))
timeout_minutes = QLabel()
timeout_slider = QSlider(Qt.Horizontal)
timeout_slider.setRange(1, 60)
timeout_slider.setSingleStep(1)
timeout_slider.setTickInterval(5)
timeout_slider.setTickPosition(QSlider.TicksBelow)
timeout_slider.setTracking(True)
timeout_msg = QLabel(
_("Clear the session after the specified period "
"of inactivity. Once a session has timed out, "
"your PIN and passphrase (if enabled) must be "
"re-entered to use the device."))
timeout_msg.setWordWrap(True)
timeout_slider.setSliderPosition(config.get_session_timeout() // 60)
slider_moved()
timeout_slider.valueChanged.connect(slider_moved)
timeout_slider.sliderReleased.connect(slider_released)
settings_glayout.addWidget(timeout_label, 6, 0)
settings_glayout.addWidget(timeout_slider, 6, 1, 1, 3)
settings_glayout.addWidget(timeout_minutes, 6, 4)
settings_glayout.addWidget(timeout_msg, 7, 1, 1, -1)
settings_layout.addLayout(settings_glayout)
settings_layout.addStretch(1)
# Advanced tab
advanced_tab = QWidget()
advanced_layout = QVBoxLayout(advanced_tab)
advanced_glayout = QGridLayout()
# Advanced tab - clear PIN
clear_pin_button = QPushButton(_("Disable PIN"))
clear_pin_button.clicked.connect(clear_pin)
clear_pin_warning = QLabel(
_("If you disable your PIN, anyone with physical access to your "
"{} device can spend your bitcoins.").format(plugin.device))
clear_pin_warning.setWordWrap(True)
clear_pin_warning.setStyleSheet("color: red")
advanced_glayout.addWidget(clear_pin_button, 0, 2)
advanced_glayout.addWidget(clear_pin_warning, 1, 0, 1, 5)
# Advanced tab - toggle passphrase protection
passphrase_button = QPushButton()
passphrase_button.clicked.connect(toggle_passphrase)
passphrase_msg = WWLabel(PASSPHRASE_HELP)
passphrase_warning = WWLabel(PASSPHRASE_NOT_PIN)
passphrase_warning.setStyleSheet("color: red")
advanced_glayout.addWidget(passphrase_button, 3, 2)
advanced_glayout.addWidget(passphrase_msg, 4, 0, 1, 5)
advanced_glayout.addWidget(passphrase_warning, 5, 0, 1, 5)
# Advanced tab - wipe device
wipe_device_button = QPushButton(_("Wipe Device"))
wipe_device_button.clicked.connect(wipe_device)
wipe_device_msg = QLabel(
_("Wipe the device, removing all data from it. The firmware "
"is left unchanged."))
wipe_device_msg.setWordWrap(True)
wipe_device_warning = QLabel(
_("Only wipe a device if you have the recovery seed written down "
"and the device wallet(s) are empty, otherwise the bitcoins "
"will be lost forever."))
wipe_device_warning.setWordWrap(True)
wipe_device_warning.setStyleSheet("color: red")
advanced_glayout.addWidget(wipe_device_button, 6, 2)
advanced_glayout.addWidget(wipe_device_msg, 7, 0, 1, 5)
advanced_glayout.addWidget(wipe_device_warning, 8, 0, 1, 5)
advanced_layout.addLayout(advanced_glayout)
advanced_layout.addStretch(1)
tabs = QTabWidget(self)
tabs.addTab(info_tab, _("Information"))
tabs.addTab(settings_tab, _("Settings"))
tabs.addTab(advanced_tab, _("Advanced"))
dialog_vbox = QVBoxLayout(self)
dialog_vbox.addWidget(tabs)
dialog_vbox.addLayout(Buttons(CloseButton(self)))
# Update information
invoke_client(None)

508
electrum/plugins/safe_t/safe_t.py

@ -0,0 +1,508 @@
from binascii import hexlify, unhexlify
import traceback
import sys
from electrum.util import bfh, bh2u, versiontuple, UserCancelled
from electrum.bitcoin import (b58_address_to_hash160, xpub_from_pubkey, deserialize_xpub,
TYPE_ADDRESS, TYPE_SCRIPT, is_address)
from electrum import constants
from electrum.i18n import _
from electrum.plugin import BasePlugin, Device
from electrum.transaction import deserialize, Transaction
from electrum.keystore import Hardware_KeyStore, is_xpubkey, parse_xpubkey, xtype_from_derivation
from electrum.base_wizard import ScriptTypeNotSupported
from ..hw_wallet import HW_PluginBase
from ..hw_wallet.plugin import is_any_tx_output_on_change_branch
# Safe-T mini initialization methods
TIM_NEW, TIM_RECOVER, TIM_MNEMONIC, TIM_PRIVKEY = range(0, 4)
# script "generation"
SCRIPT_GEN_LEGACY, SCRIPT_GEN_P2SH_SEGWIT, SCRIPT_GEN_NATIVE_SEGWIT = range(0, 3)
class SafeTKeyStore(Hardware_KeyStore):
hw_type = 'safe_t'
device = 'Safe-T mini'
def get_derivation(self):
return self.derivation
def get_script_gen(self):
xtype = xtype_from_derivation(self.derivation)
if xtype in ('p2wpkh', 'p2wsh'):
return SCRIPT_GEN_NATIVE_SEGWIT
elif xtype in ('p2wpkh-p2sh', 'p2wsh-p2sh'):
return SCRIPT_GEN_P2SH_SEGWIT
else:
return SCRIPT_GEN_LEGACY
def get_client(self, force_pair=True):
return self.plugin.get_client(self, force_pair)
def decrypt_message(self, sequence, message, password):
raise RuntimeError(_('Encryption and decryption are not implemented by {}').format(self.device))
def sign_message(self, sequence, message, password):
client = self.get_client()
address_path = self.get_derivation() + "/%d/%d"%sequence
address_n = client.expand_path(address_path)
msg_sig = client.sign_message(self.plugin.get_coin_name(), address_n, message)
return msg_sig.signature
def sign_transaction(self, tx, password):
if tx.is_complete():
return
# previous transactions used as inputs
prev_tx = {}
# path of the xpubs that are involved
xpub_path = {}
for txin in tx.inputs():
pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
tx_hash = txin['prevout_hash']
if txin.get('prev_tx') is None and not Transaction.is_segwit_input(txin):
raise Exception(_('Offline signing with {} is not supported for legacy inputs.').format(self.device))
prev_tx[tx_hash] = txin['prev_tx']
for x_pubkey in x_pubkeys:
if not is_xpubkey(x_pubkey):
continue
xpub, s = parse_xpubkey(x_pubkey)
if xpub == self.get_master_public_key():
xpub_path[xpub] = self.get_derivation()
self.plugin.sign_transaction(self, tx, prev_tx, xpub_path)
class SafeTPlugin(HW_PluginBase):
# Derived classes provide:
#
# class-static variables: client_class, firmware_URL, handler_class,
# libraries_available, libraries_URL, minimum_firmware,
# wallet_class, types
firmware_URL = 'https://safe-t.io'
libraries_URL = 'https://github.com/archos-safe-t/python-safet'
minimum_firmware = (1, 0, 5)
keystore_class = SafeTKeyStore
minimum_library = (0, 1, 0)
SUPPORTED_XTYPES = ('standard', 'p2wpkh-p2sh', 'p2wpkh', 'p2wsh-p2sh', 'p2wsh')
MAX_LABEL_LEN = 32
def __init__(self, parent, config, name):
HW_PluginBase.__init__(self, parent, config, name)
try:
# Minimal test if python-safet is installed
import safetlib
try:
library_version = safetlib.__version__
except AttributeError:
# python-safet only introduced __version__ in 0.1.0
library_version = 'unknown'
if library_version == 'unknown' or \
versiontuple(library_version) < self.minimum_library:
self.libraries_available_message = (
_("Library version for '{}' is too old.").format(name)
+ '\nInstalled: {}, Needed: {}'
.format(library_version, self.minimum_library))
self.print_stderr(self.libraries_available_message)
raise ImportError()
self.libraries_available = True
except ImportError:
self.libraries_available = False
return
from . import client
from . import transport
import safetlib.messages
self.client_class = client.SafeTClient
self.types = safetlib.messages
self.DEVICE_IDS = ('Safe-T mini',)
self.transport_handler = transport.SafeTTransport()
self.device_manager().register_enumerate_func(self.enumerate)
def enumerate(self):
devices = self.transport_handler.enumerate_devices()
return [Device(d.get_path(), -1, d.get_path(), 'Safe-T mini', 0) for d in devices]
def create_client(self, device, handler):
try:
self.print_error("connecting to device at", device.path)
transport = self.transport_handler.get_transport(device.path)
except BaseException as e:
self.print_error("cannot connect at", device.path, str(e))
return None
if not transport:
self.print_error("cannot connect at", device.path)
return
self.print_error("connected to device at", device.path)
client = self.client_class(transport, handler, self)
# Try a ping for device sanity
try:
client.ping('t')
except BaseException as e:
self.print_error("ping failed", str(e))
return None
if not client.atleast_version(*self.minimum_firmware):
msg = (_('Outdated {} firmware for device labelled {}. Please '
'download the updated firmware from {}')
.format(self.device, client.label(), self.firmware_URL))
self.print_error(msg)
if handler:
handler.show_error(msg)
else:
raise Exception(msg)
return None
return client
def get_client(self, keystore, force_pair=True):
devmgr = self.device_manager()
handler = keystore.handler
with devmgr.hid_lock:
client = devmgr.client_for_keystore(self, handler, keystore, force_pair)
# returns the client for a given keystore. can use xpub
if client:
client.used()
return client
def get_coin_name(self):
return "Testnet" if constants.net.TESTNET else "Bitcoin"
def initialize_device(self, device_id, wizard, handler):
# Initialization method
msg = _("Choose how you want to initialize your {}.\n\n"
"The first two methods are secure as no secret information "
"is entered into your computer.\n\n"
"For the last two methods you input secrets on your keyboard "
"and upload them to your {}, and so you should "
"only do those on a computer you know to be trustworthy "
"and free of malware."
).format(self.device, self.device)
choices = [
# Must be short as QT doesn't word-wrap radio button text
(TIM_NEW, _("Let the device generate a completely new seed randomly")),
(TIM_RECOVER, _("Recover from a seed you have previously written down")),
(TIM_MNEMONIC, _("Upload a BIP39 mnemonic to generate the seed")),
(TIM_PRIVKEY, _("Upload a master private key"))
]
def f(method):
import threading
settings = self.request_safe_t_init_settings(wizard, method, self.device)
t = threading.Thread(target=self._initialize_device_safe, args=(settings, method, device_id, wizard, handler))
t.setDaemon(True)
t.start()
exit_code = wizard.loop.exec_()
if exit_code != 0:
# this method (initialize_device) was called with the expectation
# of leaving the device in an initialized state when finishing.
# signal that this is not the case:
raise UserCancelled()
wizard.choice_dialog(title=_('Initialize Device'), message=msg, choices=choices, run_next=f)
def _initialize_device_safe(self, settings, method, device_id, wizard, handler):
exit_code = 0
try:
self._initialize_device(settings, method, device_id, wizard, handler)
except UserCancelled:
exit_code = 1
except BaseException as e:
traceback.print_exc(file=sys.stderr)
handler.show_error(str(e))
exit_code = 1
finally:
wizard.loop.exit(exit_code)
def _initialize_device(self, settings, method, device_id, wizard, handler):
item, label, pin_protection, passphrase_protection = settings
if method == TIM_RECOVER:
handler.show_error(_(
"You will be asked to enter 24 words regardless of your "
"seed's actual length. If you enter a word incorrectly or "
"misspell it, you cannot change it or go back - you will need "
"to start again from the beginning.\n\nSo please enter "
"the words carefully!"),
blocking=True)
language = 'english'
devmgr = self.device_manager()
client = devmgr.client_by_id(device_id)
if method == TIM_NEW:
strength = 64 * (item + 2) # 128, 192 or 256
u2f_counter = 0
skip_backup = False
client.reset_device(True, strength, passphrase_protection,
pin_protection, label, language,
u2f_counter, skip_backup)
elif method == TIM_RECOVER:
word_count = 6 * (item + 2) # 12, 18 or 24
client.step = 0
client.recovery_device(word_count, passphrase_protection,
pin_protection, label, language)
elif method == TIM_MNEMONIC:
pin = pin_protection # It's the pin, not a boolean
client.load_device_by_mnemonic(str(item), pin,
passphrase_protection,
label, language)
else:
pin = pin_protection # It's the pin, not a boolean
client.load_device_by_xprv(item, pin, passphrase_protection,
label, language)
def _make_node_path(self, xpub, address_n):
_, depth, fingerprint, child_num, chain_code, key = deserialize_xpub(xpub)
node = self.types.HDNodeType(
depth=depth,
fingerprint=int.from_bytes(fingerprint, 'big'),
child_num=int.from_bytes(child_num, 'big'),
chain_code=chain_code,
public_key=key,
)
return self.types.HDNodePathType(node=node, address_n=address_n)
def setup_device(self, device_info, wizard, purpose):
devmgr = self.device_manager()
device_id = device_info.device.id_
client = devmgr.client_by_id(device_id)
if client is None:
raise Exception(_('Failed to create a client for this device.') + '\n' +
_('Make sure it is in the correct state.'))
# fixme: we should use: client.handler = wizard
client.handler = self.create_handler(wizard)
if not device_info.initialized:
self.initialize_device(device_id, wizard, client.handler)
client.get_xpub('m', 'standard')
client.used()
def get_xpub(self, device_id, derivation, xtype, wizard):
if xtype not in self.SUPPORTED_XTYPES:
raise ScriptTypeNotSupported(_('This type of script is not supported with {}.').format(self.device))
devmgr = self.device_manager()
client = devmgr.client_by_id(device_id)
client.handler = wizard
xpub = client.get_xpub(derivation, xtype)
client.used()
return xpub
def get_safet_input_script_type(self, script_gen, is_multisig):
if script_gen == SCRIPT_GEN_NATIVE_SEGWIT:
return self.types.InputScriptType.SPENDWITNESS
elif script_gen == SCRIPT_GEN_P2SH_SEGWIT:
return self.types.InputScriptType.SPENDP2SHWITNESS
else:
if is_multisig:
return self.types.InputScriptType.SPENDMULTISIG
else:
return self.types.InputScriptType.SPENDADDRESS
def sign_transaction(self, keystore, tx, prev_tx, xpub_path):
self.prev_tx = prev_tx
self.xpub_path = xpub_path
client = self.get_client(keystore)
inputs = self.tx_inputs(tx, True, keystore.get_script_gen())
outputs = self.tx_outputs(keystore.get_derivation(), tx, keystore.get_script_gen())
signatures = client.sign_tx(self.get_coin_name(), inputs, outputs, lock_time=tx.locktime)[0]
signatures = [(bh2u(x) + '01') for x in signatures]
tx.update_signatures(signatures)
def show_address(self, wallet, address, keystore=None):
if keystore is None:
keystore = wallet.get_keystore()
if not self.show_address_helper(wallet, address, keystore):
return
client = self.get_client(keystore)
if not client.atleast_version(1, 0):
keystore.handler.show_error(_("Your device firmware is too old"))
return
change, index = wallet.get_address_index(address)
derivation = keystore.derivation
address_path = "%s/%d/%d"%(derivation, change, index)
address_n = client.expand_path(address_path)
xpubs = wallet.get_master_public_keys()
if len(xpubs) == 1:
script_gen = keystore.get_script_gen()
script_type = self.get_safet_input_script_type(script_gen, is_multisig=False)
client.get_address(self.get_coin_name(), address_n, True, script_type=script_type)
else:
def f(xpub):
return self._make_node_path(xpub, [change, index])
pubkeys = wallet.get_public_keys(address)
# sort xpubs using the order of pubkeys
sorted_pubkeys, sorted_xpubs = zip(*sorted(zip(pubkeys, xpubs)))
pubkeys = list(map(f, sorted_xpubs))
multisig = self.types.MultisigRedeemScriptType(
pubkeys=pubkeys,
signatures=[b''] * wallet.n,
m=wallet.m,
)
script_gen = keystore.get_script_gen()
script_type = self.get_safet_input_script_type(script_gen, is_multisig=True)
client.get_address(self.get_coin_name(), address_n, True, multisig=multisig, script_type=script_type)
def tx_inputs(self, tx, for_sig=False, script_gen=SCRIPT_GEN_LEGACY):
inputs = []
for txin in tx.inputs():
txinputtype = self.types.TxInputType()
if txin['type'] == 'coinbase':
prev_hash = b"\x00"*32
prev_index = 0xffffffff # signed int -1
else:
if for_sig:
x_pubkeys = txin['x_pubkeys']
if len(x_pubkeys) == 1:
x_pubkey = x_pubkeys[0]
xpub, s = parse_xpubkey(x_pubkey)
xpub_n = self.client_class.expand_path(self.xpub_path[xpub])
txinputtype._extend_address_n(xpub_n + s)
txinputtype.script_type = self.get_safet_input_script_type(script_gen, is_multisig=False)
else:
def f(x_pubkey):
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
else:
xpub = xpub_from_pubkey(0, bfh(x_pubkey))
s = []
return self._make_node_path(xpub, s)
pubkeys = list(map(f, x_pubkeys))
multisig = self.types.MultisigRedeemScriptType(
pubkeys=pubkeys,
signatures=list(map(lambda x: bfh(x)[:-1] if x else b'', txin.get('signatures'))),
m=txin.get('num_sig'),
)
script_type = self.get_safet_input_script_type(script_gen, is_multisig=True)
txinputtype = self.types.TxInputType(
script_type=script_type,
multisig=multisig
)
# find which key is mine
for x_pubkey in x_pubkeys:
if is_xpubkey(x_pubkey):
xpub, s = parse_xpubkey(x_pubkey)
if xpub in self.xpub_path:
xpub_n = self.client_class.expand_path(self.xpub_path[xpub])
txinputtype._extend_address_n(xpub_n + s)
break
prev_hash = unhexlify(txin['prevout_hash'])
prev_index = txin['prevout_n']
if 'value' in txin:
txinputtype.amount = txin['value']
txinputtype.prev_hash = prev_hash
txinputtype.prev_index = prev_index
if txin.get('scriptSig') is not None:
script_sig = bfh(txin['scriptSig'])
txinputtype.script_sig = script_sig
txinputtype.sequence = txin.get('sequence', 0xffffffff - 1)
inputs.append(txinputtype)
return inputs
def tx_outputs(self, derivation, tx, script_gen=SCRIPT_GEN_LEGACY):
def create_output_by_derivation(info):
index, xpubs, m = info
if len(xpubs) == 1:
if script_gen == SCRIPT_GEN_NATIVE_SEGWIT:
script_type = self.types.OutputScriptType.PAYTOWITNESS
elif script_gen == SCRIPT_GEN_P2SH_SEGWIT:
script_type = self.types.OutputScriptType.PAYTOP2SHWITNESS
else:
script_type = self.types.OutputScriptType.PAYTOADDRESS
address_n = self.client_class.expand_path(derivation + "/%d/%d" % index)
txoutputtype = self.types.TxOutputType(
amount=amount,
script_type=script_type,
address_n=address_n,
)
else:
if script_gen == SCRIPT_GEN_NATIVE_SEGWIT:
script_type = self.types.OutputScriptType.PAYTOWITNESS
elif script_gen == SCRIPT_GEN_P2SH_SEGWIT:
script_type = self.types.OutputScriptType.PAYTOP2SHWITNESS
else:
script_type = self.types.OutputScriptType.PAYTOMULTISIG
address_n = self.client_class.expand_path("/%d/%d" % index)
pubkeys = [self._make_node_path(xpub, address_n) for xpub in xpubs]
multisig = self.types.MultisigRedeemScriptType(
pubkeys=pubkeys,
signatures=[b''] * len(pubkeys),
m=m)
txoutputtype = self.types.TxOutputType(
multisig=multisig,
amount=amount,
address_n=self.client_class.expand_path(derivation + "/%d/%d" % index),
script_type=script_type)
return txoutputtype
def create_output_by_address():
txoutputtype = self.types.TxOutputType()
txoutputtype.amount = amount
if _type == TYPE_SCRIPT:
txoutputtype.script_type = self.types.OutputScriptType.PAYTOOPRETURN
txoutputtype.op_return_data = address[2:]
elif _type == TYPE_ADDRESS:
txoutputtype.script_type = self.types.OutputScriptType.PAYTOADDRESS
txoutputtype.address = address
return txoutputtype
outputs = []
has_change = False
any_output_on_change_branch = is_any_tx_output_on_change_branch(tx)
for _type, address, amount in tx.outputs():
use_create_by_derivation = False
info = tx.output_info.get(address)
if info is not None and not has_change:
index, xpubs, m = info
on_change_branch = index[0] == 1
# prioritise hiding outputs on the 'change' branch from user
# because no more than one change address allowed
# note: ^ restriction can be removed once we require fw
# that has https://github.com/trezor/trezor-mcu/pull/306
if on_change_branch == any_output_on_change_branch:
use_create_by_derivation = True
has_change = True
if use_create_by_derivation:
txoutputtype = create_output_by_derivation(info)
else:
txoutputtype = create_output_by_address()
outputs.append(txoutputtype)
return outputs
def electrum_tx_to_txtype(self, tx):
t = self.types.TransactionType()
if tx is None:
# probably for segwit input and we don't need this prev txn
return t
d = deserialize(tx.raw)
t.version = d['version']
t.lock_time = d['lockTime']
inputs = self.tx_inputs(tx)
t._extend_inputs(inputs)
for vout in d['outputs']:
o = t._add_bin_outputs()
o.amount = vout['value']
o.script_pubkey = bfh(vout['scriptPubKey'])
return t
# This function is called from the TREZOR libraries (via tx_api)
def get_tx(self, tx_hash):
tx = self.prev_tx[tx_hash]
return self.electrum_tx_to_txtype(tx)

95
electrum/plugins/safe_t/transport.py

@ -0,0 +1,95 @@
from electrum.util import PrintError
class SafeTTransport(PrintError):
@staticmethod
def all_transports():
"""Reimplemented safetlib.transport.all_transports so that we can
enable/disable specific transports.
"""
try:
# only to detect safetlib version
from safetlib.transport import all_transports
except ImportError:
# old safetlib. compat for safetlib < 0.9.2
transports = []
#try:
# from safetlib.transport_bridge import BridgeTransport
# transports.append(BridgeTransport)
#except BaseException:
# pass
try:
from safetlib.transport_hid import HidTransport
transports.append(HidTransport)
except BaseException:
pass
try:
from safetlib.transport_udp import UdpTransport
transports.append(UdpTransport)
except BaseException:
pass
try:
from safetlib.transport_webusb import WebUsbTransport
transports.append(WebUsbTransport)
except BaseException:
pass
else:
# new safetlib.
transports = []
#try:
# from safetlib.transport.bridge import BridgeTransport
# transports.append(BridgeTransport)
#except BaseException:
# pass
try:
from safetlib.transport.hid import HidTransport
transports.append(HidTransport)
except BaseException:
pass
try:
from safetlib.transport.udp import UdpTransport
transports.append(UdpTransport)
except BaseException:
pass
try:
from safetlib.transport.webusb import WebUsbTransport
transports.append(WebUsbTransport)
except BaseException:
pass
return transports
return transports
def enumerate_devices(self):
"""Just like safetlib.transport.enumerate_devices,
but with exception catching, so that transports can fail separately.
"""
devices = []
for transport in self.all_transports():
try:
new_devices = transport.enumerate()
except BaseException as e:
self.print_error('enumerate failed for {}. error {}'
.format(transport.__name__, str(e)))
else:
devices.extend(new_devices)
return devices
def get_transport(self, path=None):
"""Reimplemented safetlib.transport.get_transport,
(1) for old safetlib
(2) to be able to disable specific transports
(3) to call our own enumerate_devices that catches exceptions
"""
if path is None:
try:
return self.enumerate_devices()[0]
except IndexError:
raise Exception("No Safe-T mini found") from None
def match_prefix(a, b):
return a.startswith(b) or b.startswith(a)
transports = [t for t in self.all_transports() if match_prefix(path, t.PATH_PREFIX)]
if transports:
return transports[0].find_by_path(path)
raise Exception("Unknown path prefix '%s'" % path)

4
electrum/storage.py

@ -319,7 +319,7 @@ class WalletStorage(JsonDB):
storage2.upgrade()
storage2.write()
result = [storage1.path, storage2.path]
elif wallet_type in ['bip44', 'trezor', 'keepkey', 'ledger', 'btchip', 'digitalbitbox']:
elif wallet_type in ['bip44', 'trezor', 'keepkey', 'ledger', 'btchip', 'digitalbitbox', 'safe_t']:
mpk = storage.get('master_public_keys')
for k in d.keys():
i = int(k)
@ -416,7 +416,7 @@ class WalletStorage(JsonDB):
self.put('wallet_type', 'standard')
self.put('keystore', d)
elif wallet_type in ['trezor', 'keepkey', 'ledger', 'digitalbitbox']:
elif wallet_type in ['trezor', 'keepkey', 'ledger', 'digitalbitbox', 'safe_t']:
xpub = xpubs["x/0'"]
derivation = self.get('derivation', bip44_derivation(0))
d = {

2
electrum/transaction.py

@ -672,7 +672,7 @@ class Transaction:
`signatures` is expected to be a list of sigs with signatures[i]
intended for self._inputs[i].
This is used by the Trezor and KeepKey plugins.
This is used by the Trezor, KeepKey an Safe-T plugins.
"""
if self.is_complete():
return

2
icons.qrc

@ -31,6 +31,8 @@
<file>icons/qrcode.png</file>
<file>icons/qrcode_white.png</file>
<file>icons/preferences.png</file>
<file>icons/safe-t_unpaired.png</file>
<file>icons/safe-t.png</file>
<file>icons/seed.png</file>
<file>icons/status_connected.png</file>
<file>icons/status_connected_proxy.png</file>

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