do not base64encode signatures in requests

plugins/btchipwallet.py

@@ -5,7 +5,6 @@ from binascii import hexlify
 from struct import pack,unpack
 from sys import stderr
 from time import sleep
-from base64 import b64encode, b64decode
 
 import electrum
 from electrum_gui.qt.password_dialog import make_password_dialog, run_password_dialog
@@ -345,8 +344,7 @@ class BTChipWallet(BIP32_HD_Wallet):
         s = str(s)
 
         # And convert it
-
-        return b64encode(chr(27 + 4 + (signature[0] & 0x01)) + r + s)
+        return chr(27 + 4 + (signature[0] & 0x01)) + r + s
 
     def sign_transaction(self, tx, password):
         if tx.is_complete():

plugins/greenaddress_instant.py

@@ -80,6 +80,7 @@ class Plugin(BasePlugin):
             addr = self.get_my_addr(tx)
             message = "Please verify if %s is GreenAddress instant confirmed" % tx.hash()
             sig = self.wallet.sign_message(addr, message, password)
+            sig = base64.b64encode(sig)
 
             # 2. send the request
             response = requests.request("GET", ("https://greenaddress.it/verify/?signature=%s&txhash=%s" % (urllib.quote(sig), tx.hash())),

plugins/trezor.py

@@ -2,7 +2,6 @@ from binascii import unhexlify
 from struct import pack
 from sys import stderr
 from time import sleep
-from base64 import b64encode, b64decode
 import unicodedata
 import threading
 import re
@@ -459,8 +458,7 @@ class TrezorWallet(BIP32_HD_Wallet):
             give_error(e)
         finally:
             self.plugin.handler.stop()
-        b64_msg_sig = b64encode(msg_sig.signature)
-        return str(b64_msg_sig)
+        return msg_sig.signature
 
     def sign_transaction(self, tx, password):
         if tx.is_complete():