Support public key computation with timing resistance.

wolfSSL · Nov 14, 2023 · 03498df · 03498df
1 parent 84866a5
commit 03498df
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/tpm2_wrap.c b/src/tpm2_wrap.c
@@ -3211,7 +3211,11 @@ int wolfTPM2_EccKey_WolfToTpm_ex(WOLFTPM2_DEV* dev, WOLFTPM2_KEY* parentKey,
                 rc = MEMORY_E;
             }
             if (rc == 0) {
+            #ifdef ECC_TIMING_RESISTANT
+                rc = wc_ecc_make_pub_ex(wolfKey, point, wolfKey->rng);
+            #else
                 rc = wc_ecc_make_pub(wolfKey, point);
+            #endif
                 if (rc == 0)
                     rc = wc_export_int(point->x, qx, &qxSz, keySz,
                         WC_TYPE_UNSIGNED_BIN);