From 070dfad07abb629b4b2fdac0faaee6fccd2ff616 Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Fri, 9 Apr 2021 15:51:30 -0700
Subject: [PATCH] Fix for NXP LTC ECC public key computation broken in PR #2859
 for contstant time changes.

---
 wolfcrypt/src/ecc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/wolfcrypt/src/ecc.c b/wolfcrypt/src/ecc.c
index 696da3eb1..123cb18e5 100644
--- a/wolfcrypt/src/ecc.c
+++ b/wolfcrypt/src/ecc.c
@@ -2879,7 +2879,7 @@ static int ecc_mulmod(const mp_int* k, ecc_point* P, ecc_point* Q,
 
 #endif
 
-/* Convert the point to montogmery form.
+/* Convert the point to montgomery form.
  *
  * @param  [in]   p        Point to convert.
  * @param  [out]  r        Point in montgomery form.
@@ -4413,10 +4413,14 @@ static int ecc_make_pub_ex(ecc_key* key, ecc_curve_spec* curveIn,
                err = MEMORY_E;
             }
         }
+#ifndef FREESCALE_LTC_ECC /* this is done in hardware */
         if (err == MP_OKAY) {
             /* Use constant time map if compiled in */
             err = ecc_map_ex(pub, curve->prime, mp, 1);
         }
+#else
+        (void)mp;
+#endif
 
         wc_ecc_del_point_h(base, key->heap);
     }