From c66da55bf83b33c7f819d7ad8cef1c38dfef07e0 Mon Sep 17 00:00:00 2001
From: jsing <>
Date: Sun, 29 Jan 2023 15:33:43 +0000
Subject: Set BN_FLG_CONSTTIME on benchmark inputs.

The public APIs still change behaviour based on BN_FLG_CONSTTIME - set it
to avoid benchmark noise.
---
 src/regress/lib/libcrypto/bn/bn_mul_div.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/regress/lib/libcrypto/bn/bn_mul_div.c b/src/regress/lib/libcrypto/bn/bn_mul_div.c
index 28f8f75646..77805b9a80 100644
--- a/src/regress/lib/libcrypto/bn/bn_mul_div.c
+++ b/src/regress/lib/libcrypto/bn/bn_mul_div.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bn_mul_div.c,v 1.3 2023/01/29 15:26:55 jsing Exp $ */
+/*	$OpenBSD: bn_mul_div.c,v 1.4 2023/01/29 15:33:43 jsing Exp $ */
 /*
  * Copyright (c) 2023 Joel Sing <jsing@openbsd.org>
  *
@@ -358,6 +358,9 @@ benchmark_run(const struct benchmark *bm, int seconds)
 	if ((q = BN_CTX_get(bn_ctx)) == NULL)
 		errx(1, "BN_CTX_get");
 
+	BN_set_flags(a, BN_FLG_CONSTTIME);
+	BN_set_flags(b, BN_FLG_CONSTTIME);
+
 	if (!bm->setup(a, bm->a_bits, b, bm->b_bits, r, q))
 		errx(1, "benchmark setup failed");
 
-- 
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