fix address_id

plugins/trezor.py

@@ -177,7 +177,7 @@ class TrezorWallet(NewWallet):
 
     def address_id(self, address):
         account_id, (change, address_index) = self.get_address_index(address)
-        return "%s/%d/%d" % (account_id, change, address_index)
+        return "44'/0'/%s'/%d/%d" % (account_id, change, address_index)
 
     def create_main_account(self, password):
         self.create_account('Main account', None) #name, empty password
@@ -221,6 +221,8 @@ class TrezorWallet(NewWallet):
         return str(decrypted_msg)
 
     def sign_message(self, address, message, password):
+        if not self.check_proper_device():
+            give_error('Wrong device or password')
         try:
             address_path = self.address_id(address)
             address_n = self.get_client().expand_path(address_path)