From 571ac282297954f945412740404a7a70912db31f Mon Sep 17 00:00:00 2001
From: Philippe Teuwen <phil@teuwen.org>
Date: Sun, 15 Dec 2024 14:02:52 +0100
Subject: [PATCH] st25ta02kb getsignature: handle locked tags

---
 client/src/cmdhfst25ta.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/client/src/cmdhfst25ta.c b/client/src/cmdhfst25ta.c
index fcf5791d0..9656d8146 100644
--- a/client/src/cmdhfst25ta.c
+++ b/client/src/cmdhfst25ta.c
@@ -183,7 +183,13 @@ static int st25ta_get_signature(uint8_t *signature) {
         }
         activate_field = false;
     }
-
+    if (resplen != 32) {
+        if ((resplen == 2) && (resp[0] == 0x69) && (resp[1] == 0x82)) {
+            PrintAndLogEx(WARNING, "GetSignature: Security status not satisfied");
+        }
+        DropField();
+        return PM3_ESOFT;
+    }
     if (signature) {
         memcpy(signature, resp, 32);
     }