From 2118711d122aeb170031ab7eb80e5a9269055772 Mon Sep 17 00:00:00 2001
From: Chris Liddell <chris.liddell@artifex.com>
Date: Fri, 21 Sep 2018 08:45:35 +0100
Subject: [PATCH] Bug 699802: add object type check for AES key

Make sure the key string is a string.
---
 psi/zfaes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/psi/zfaes.c b/psi/zfaes.c
index fd1fb82..e626690 100644
--- a/psi/zfaes.c
+++ b/psi/zfaes.c
@@ -45,7 +45,7 @@ z_aes_d(i_ctx_t * i_ctx_p)
     check_dict_read(*op);
     if (dict_find_string(op, "Key", &sop) <= 0)
         return_error(gs_error_rangecheck);
-
+    check_type(*sop, t_string);
     s_aes_set_key(&state, sop->value.const_bytes, r_size(sop));
 
     /* extract the padding flag, which defaults to true for compatibility */
-- 
2.9.1