diff --git a/src/toxencryptsave.py b/src/toxencryptsave.py
index e7ee8f8..c46b4d8 100644
--- a/src/toxencryptsave.py
+++ b/src/toxencryptsave.py
@@ -38,12 +38,19 @@ class LibToxEncryptSave(util.Singleton):
 
     libtoxencryptsave = libtox.LibToxEncryptSave()
 
-    def __init__(self, passphrase=''):
-        self._passphrase = passphrase
+    def __init__(self):
+        self._passphrase = None
 
     def set_password(self, passphrase):
         self._passphrase = passphrase
 
+    def has_password(self):
+        return bool(self._passphrase)
+
+    def is_data_encrypted(self, data):
+        result = self.libtoxencryptsave.tox_is_data_encrypted(c_char_p(data))
+        return bool(result)
+
     def pass_encrypt(self, data):
         """
         Encrypts the given data with the given passphrase.