From afdc57eab5bd921a48cd2b40985eee6550c7da44 Mon Sep 17 00:00:00 2001
From: jsing <jsing@openbsd.org>
Date: Sat, 24 Jun 2023 18:21:07 +0000
Subject: [PATCH] Remove precompute_mult/have_precompute_mult from EC_METHOD.

These are no longer in use - stub EC_GROUP_precompute_mult() and
EC_GROUP_have_precompute_mult() to match their existing behaviour.

ok tb@
---
 lib/libcrypto/ec/ec_lib.c   | 26 +++-----------------------
 lib/libcrypto/ec/ec_local.h |  4 +---
 2 files changed, 4 insertions(+), 26 deletions(-)

diff --git a/lib/libcrypto/ec/ec_lib.c b/lib/libcrypto/ec/ec_lib.c
index 93a90651290..cb581f6e1c1 100644
--- a/lib/libcrypto/ec/ec_lib.c
+++ b/lib/libcrypto/ec/ec_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_lib.c,v 1.59 2023/06/24 17:49:44 jsing Exp $ */
+/* $OpenBSD: ec_lib.c,v 1.60 2023/06/24 18:21:07 jsing Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -1390,33 +1390,13 @@ EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *g_scalar,
 int
 EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx_in)
 {
-	BN_CTX *ctx;
-	int ret = 0;
-
-	if (group->meth->precompute_mult == NULL)
-		return 1;
-
-	if ((ctx = ctx_in) == NULL)
-		ctx = BN_CTX_new();
-	if (ctx == NULL)
-		goto err;
-
-	ret = group->meth->precompute_mult(group, ctx);
-
- err:
-	if (ctx != ctx_in)
-		BN_CTX_free(ctx);
-
-	return ret;
+	return 1;
 }
 
 int
 EC_GROUP_have_precompute_mult(const EC_GROUP *group)
 {
-	if (group->meth->have_precompute_mult == NULL)
-		return 0;
-
-	return group->meth->have_precompute_mult(group);
+	return 0;
 }
 
 int
diff --git a/lib/libcrypto/ec/ec_local.h b/lib/libcrypto/ec/ec_local.h
index c0689a3c3e6..caa73bc7288 100644
--- a/lib/libcrypto/ec/ec_local.h
+++ b/lib/libcrypto/ec/ec_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_local.h,v 1.16 2023/06/24 17:49:44 jsing Exp $ */
+/* $OpenBSD: ec_local.h,v 1.17 2023/06/24 18:21:07 jsing Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -145,8 +145,6 @@ struct ec_method_st {
 	int (*mul_double_nonct)(const EC_GROUP *group, EC_POINT *r,
 	    const BIGNUM *g_scalar, const BIGNUM *p_scalar,
 	    const EC_POINT *point, BN_CTX *);
-	int (*precompute_mult)(EC_GROUP *group, BN_CTX *);
-	int (*have_precompute_mult)(const EC_GROUP *group);
 
 	/*
 	 * Internal methods.
-- 
2.20.1