key = self.plain_read(user_private_key)
self.plain_write(private_key_filename, key)
os.chmod(private_key_filename, os.stat(user_private_key).st_mode)
key = self.plain_read(user_private_key)
self.plain_write(private_key_filename, key)
os.chmod(private_key_filename, os.stat(user_private_key).st_mode)