From 99d47c1078643352842f47b6330086d9affefb59 Mon Sep 17 00:00:00 2001 From: jsing <> Date: Mon, 1 Sep 2025 15:35:25 +0000 Subject: Use bn_mul_words() from bn_mod_mul_words(). Use bn_mul_words() and bn_montgomery_reduce_words(), rather than using bn_montgomery_multiply_words(). This provides better performance on architectures that have assembly optimised bn_mul_words(), such as amd64. --- src/lib/libcrypto/bn/bn_mod_words.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'src/lib') diff --git a/src/lib/libcrypto/bn/bn_mod_words.c b/src/lib/libcrypto/bn/bn_mod_words.c index 7c07b49fab..93c6567364 100644 --- a/src/lib/libcrypto/bn/bn_mod_words.c +++ b/src/lib/libcrypto/bn/bn_mod_words.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bn_mod_words.c,v 1.4 2025/09/01 15:18:55 jsing Exp $ */ +/* $OpenBSD: bn_mod_words.c,v 1.5 2025/09/01 15:35:25 jsing Exp $ */ /* * Copyright (c) 2024 Joel Sing * @@ -75,16 +75,14 @@ bn_mod_mul_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, { if (n == 4) { bn_mul_comba4(t, a, b); - bn_montgomery_reduce_words(r, t, m, m0, n); } else if (n == 6) { bn_mul_comba6(t, a, b); - bn_montgomery_reduce_words(r, t, m, m0, n); } else if (n == 8) { bn_mul_comba8(t, a, b); - bn_montgomery_reduce_words(r, t, m, m0, n); } else { - bn_montgomery_multiply_words(r, a, b, m, t, m0, n); + bn_mul_words(t, a, n, b, n); } + bn_montgomery_reduce_words(r, t, m, m0, n); } #endif -- cgit v1.2.3-55-g6feb