Allow unicode in identity string for SSH and GPG

libagent/ssh/__init__.py

@@ -188,7 +188,7 @@ def main(device_type):
     public_keys = None
     if args.identity.startswith('/'):
         filename = args.identity
-        contents = open(filename, 'rb').read().decode('ascii')
+        contents = open(filename, 'rb').read().decode('utf-8')
         # Allow loading previously exported SSH public keys
         if filename.endswith('.pub'):
             public_keys = list(import_public_keys(contents))

libagent/ssh/protocol.py

@@ -138,7 +138,7 @@ class Handler(object):
         else:
             raise KeyError('key not found')
 
-        label = key['name'].decode('ascii')  # label should be a string
+        label = key['name'].decode('utf-8')
         log.debug('signing %d-byte blob with "%s" key', len(blob), label)
         try:
             signature = self.conn.sign(blob=blob, identity=key['identity'])