algorithms.c (AEADAAD.copy): Propagate the hashed length to the copy.

diff --git a/algorithms.c b/algorithms.c
index 37d52cd..1615c12 100644 (file)
--- a/algorithms.c
+++ b/algorithms.c
@@ -987,6 +987,7 @@ static PyObject *gaeameth_copy(PyObject *me, PyObject *arg)
     VALERR("can't duplicate nonce-dependent aad");
   rc = gaeadaad_pywrap((PyObject *)me->ob_type,
                       GAEAD_DUP(GAEADAAD_A(me)), 0, 0);
+  GAEADAAD_HLEN(rc) = GAEADAAD_HLEN(me);
 end:
   return (rc);
 }