Compute a square using BN_mod_sqr() instead of BN_mod_mul()

ok jsing

diff --git a/lib/libcrypto/bn/bn_blind.c b/lib/libcrypto/bn/bn_blind.c
index e13c36c..1cf2a4b 100644 (file)
--- a/lib/libcrypto/bn/bn_blind.c
+++ b/lib/libcrypto/bn/bn_blind.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bn_blind.c,v 1.38 2023/08/09 08:29:23 tb Exp $ */
+/* $OpenBSD: bn_blind.c,v 1.39 2023/08/09 08:31:13 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  *
@@ -228,9 +228,9 @@ BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)
                if (!BN_BLINDING_setup(b, ctx))
                        goto err;
        } else {
-               if (!BN_mod_mul(b->A, b->A, b->A, b->mod, ctx))
+               if (!BN_mod_sqr(b->A, b->A, b->mod, ctx))
                        goto err;
-               if (!BN_mod_mul(b->Ai, b->Ai, b->Ai, b->mod, ctx))
+               if (!BN_mod_sqr(b->Ai, b->Ai, b->mod, ctx))
                        goto err;
        }