From e3bdd39cc031d39a8ea071c9a8ecea5b6a958967 Mon Sep 17 00:00:00 2001
From: tb <>
Date: Tue, 20 Apr 2021 17:32:57 +0000
Subject: Prepare to provide EC_POINT_set_compressed_coordinates

ok jsing
---
 src/lib/libcrypto/ec/ec_oct.c | 52 ++++++++++++++-----------------------------
 1 file changed, 17 insertions(+), 35 deletions(-)

(limited to 'src/lib/libcrypto/ec/ec_oct.c')

diff --git a/src/lib/libcrypto/ec/ec_oct.c b/src/lib/libcrypto/ec/ec_oct.c
index a285c81459..a3a826d0f1 100644
--- a/src/lib/libcrypto/ec/ec_oct.c
+++ b/src/lib/libcrypto/ec/ec_oct.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_oct.c,v 1.6 2020/12/04 08:55:30 tb Exp $ */
+/* $OpenBSD: ec_oct.c,v 1.7 2021/04/20 17:32:57 tb Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -70,9 +70,9 @@
 
 #include "ec_lcl.h"
 
-int 
-EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP * group, EC_POINT * point,
-    const BIGNUM * x, int y_bit, BN_CTX * ctx)
+int
+EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *point,
+    const BIGNUM *x, int y_bit, BN_CTX *ctx)
 {
 	if (group->meth->point_set_compressed_coordinates == 0
 	    && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
@@ -108,40 +108,23 @@ EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP * group, EC_POINT * point
 	return 1;
 }
 
+int
+EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
+    const BIGNUM *x, int y_bit, BN_CTX *ctx)
+{
+	return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx);
+}
+
 #ifndef OPENSSL_NO_EC2M
-int 
-EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP * group, EC_POINT * point,
-    const BIGNUM * x, int y_bit, BN_CTX * ctx)
+int
+EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *point,
+    const BIGNUM *x, int y_bit, BN_CTX *ctx)
 {
-	if (group->meth->point_set_compressed_coordinates == 0
-	    && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {
-		ECerror(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
-		return 0;
-	}
-	if (group->meth != point->meth) {
-		ECerror(EC_R_INCOMPATIBLE_OBJECTS);
-		return 0;
-	}
-	if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {
-		if (group->meth->field_type == NID_X9_62_prime_field)
-			return ec_GFp_simple_set_compressed_coordinates(
-			    group, point, x, y_bit, ctx);
-		else
-			return ec_GF2m_simple_set_compressed_coordinates(
-			    group, point, x, y_bit, ctx);
-	}
-	if (!group->meth->point_set_compressed_coordinates(group, point, x,
-	    y_bit, ctx))
-		return 0;
-	if (EC_POINT_is_on_curve(group, point, ctx) <= 0) {
-		ECerror(EC_R_POINT_IS_NOT_ON_CURVE);
-		return 0;
-	}
-	return 1;
+	return EC_POINT_set_compressed_coordinates(group, point, x, y_bit, ctx);
 }
 #endif
 
-size_t 
+size_t
 EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point,
     point_conversion_form_t form,
     unsigned char *buf, size_t len, BN_CTX *ctx)
@@ -173,8 +156,7 @@ EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point,
 	return group->meth->point2oct(group, point, form, buf, len, ctx);
 }
 
-
-int 
+int
 EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,
     const unsigned char *buf, size_t len, BN_CTX *ctx)
 {
-- 
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