Avoid stripping and padding on empty messages in AES256

dmlib/daemonizer.py

@@ -133,6 +133,7 @@ class Daemonizer:
         except IOError:
             pid = None
         return pid
+
     def is_process_running(self):
         pid = self.get_pid()
         if pid:

dmlib/dmcrypt.py

@@ -332,4 +332,5 @@ def B64AESDecrypt(key, iv, data):
       decrypted = cipher.decrypt(decoded)
    except:
       decrypted = ""
+      return decrypted
    return StripPadding(decrypted, INTERRUPT, PAD)