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labels: encrypt keys with deterministic iv

283
ThomasV 10 years ago
parent
commit
42bbce4cb3
  1. 20
      plugins/labels.py

20
plugins/labels.py

@ -17,6 +17,8 @@ import PyQt4.QtCore as QtCore
import PyQt4.QtGui as QtGui
import aes
import base64
import electrum
from electrum.plugins import BasePlugin, hook
from electrum.i18n import _
@ -31,18 +33,18 @@ class Plugin(BasePlugin):
return _('Label Sync')
def description(self):
return '%s\n\n%s%s%s' % (_("This plugin can sync your labels across multiple Electrum installs by using a remote database to save your data. Labels encrypted before they are sent to the remote server, but transactions IDs and addresses are not. This code might increase the load of your wallet with a few microseconds as it will sync labels on each startup."), _("To get started visit"), " http://labelectrum.herokuapp.com/ ", _(" to sign up for an account."))
return '%s\n\n%s%s%s' % (_("This plugin can sync your labels across multiple Electrum installs by using a remote database to save your data. Labels, transactions ids and addresses are encrypted before they are sent to the remote server. This code might increase the load of your wallet with a few microseconds as it will sync labels on each startup."), _("To get started visit"), " http://labelectrum.herokuapp.com/ ", _(" to sign up for an account."))
def version(self):
return "0.2.1"
def encode(self, message):
encrypted = aes.encryptData(self.encode_password, unicode(message))
encrypted = electrum.bitcoin.aes_encrypt_with_iv(self.encode_password, self.encode_password, unicode(message))
encoded_message = base64.b64encode(encrypted)
return encoded_message
def decode(self, message):
decoded_message = aes.decryptData(self.encode_password, base64.b64decode(unicode(message)) )
decoded_message = electrum.bitcoin.aes_decrypt_with_iv(self.encode_password, self.encode_password, base64.b64decode(unicode(message)) )
return decoded_message
@ -182,12 +184,17 @@ class Plugin(BasePlugin):
try:
bundle = {"labels": {}}
for key, value in self.wallet.labels.iteritems():
try:
encoded_key = self.encode(key)
except:
print_error('cannot encode', repr(key))
continue
try:
encoded_value = self.encode(value)
except:
print_error('cannot encode', repr(value))
continue
bundle["labels"][key] = encoded_value
bundle["labels"][encoded_key] = encoded_value
params = json.dumps(bundle)
connection = httplib.HTTPConnection(self.target_host)
@ -221,7 +228,10 @@ class Plugin(BasePlugin):
raise BaseException(_("Could not sync labels: %s" % response["error"]))
for label in response:
key = label["external_id"]
try:
key = self.decode(label["external_id"])
except:
continue
try:
value = self.decode(label["text"])
except:

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