From 5eecd1d368f9fc54cc77a51545a9a83998afedab Mon Sep 17 00:00:00 2001
From: tb <tb@openbsd.org>
Date: Mon, 3 Jul 2023 09:25:44 +0000
Subject: [PATCH] Inline two copies of EC_GROUP_order_bits()

This code is way more complicated than it needs to be. Simplify. ec_bits()
was particularly stupid.

ok beck jsing
---
 lib/libcrypto/ec/ec_ameth.c | 28 ++++++----------------------
 1 file changed, 6 insertions(+), 22 deletions(-)

diff --git a/lib/libcrypto/ec/ec_ameth.c b/lib/libcrypto/ec/ec_ameth.c
index 45f51e9dd8e..8676ace9d86 100644
--- a/lib/libcrypto/ec/ec_ameth.c
+++ b/lib/libcrypto/ec/ec_ameth.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_ameth.c,v 1.39 2023/07/01 08:15:31 tb Exp $ */
+/* $OpenBSD: ec_ameth.c,v 1.40 2023/07/03 09:25:44 tb Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2006.
  */
@@ -367,23 +367,12 @@ int_ec_size(const EVP_PKEY *pkey)
 static int
 ec_bits(const EVP_PKEY *pkey)
 {
-	BIGNUM *order = BN_new();
 	const EC_GROUP *group;
-	int ret;
 
-	if (!order) {
-		ERR_clear_error();
+	if ((group = EC_KEY_get0_group(pkey->pkey.ec)) == NULL)
 		return 0;
-	}
-	group = EC_KEY_get0_group(pkey->pkey.ec);
-	if (!EC_GROUP_get_order(group, order, NULL)) {
-		BN_free(order);
-		ERR_clear_error();
-		return 0;
-	}
-	ret = BN_num_bits(order);
-	BN_free(order);
-	return ret;
+
+	return EC_GROUP_order_bits(group);
 }
 
 static int
@@ -442,7 +431,7 @@ do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype)
 	const char *ecstr;
 	size_t buf_len = 0, i;
 	int ret = 0, reason = ERR_R_BIO_LIB;
-	BIGNUM *pub_key = NULL, *order = NULL;
+	BIGNUM *pub_key = NULL;
 	BN_CTX *ctx = NULL;
 	const EC_GROUP *group;
 	const EC_POINT *public_key;
@@ -492,12 +481,8 @@ do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype)
 
 	if (!BIO_indent(bp, off, 128))
 		goto err;
-	if ((order = BN_new()) == NULL)
-		goto err;
-	if (!EC_GROUP_get_order(group, order, NULL))
-		goto err;
 	if (BIO_printf(bp, "%s: (%d bit)\n", ecstr,
-		BN_num_bits(order)) <= 0)
+	    EC_GROUP_order_bits(group)) <= 0)
 		goto err;
 
 	if (!ASN1_bn_print(bp, "priv:", priv_key, buffer, off))
@@ -511,7 +496,6 @@ do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype)
 	if (!ret)
 		ECerror(reason);
 	BN_free(pub_key);
-	BN_free(order);
 	BN_CTX_free(ctx);
 	free(buffer);
 	return (ret);
-- 
2.20.1