Make ec_GFp_simple_* static

These functions are no longer shared between multiple files, so they can
be static in ecp_methods.c and the long list of prototypes can go away.

2 files changed, 32 insertions, 71 deletions

diff --git a/src/lib/libcrypto/ec/ec_local.h b/src/lib/libcrypto/ec/ec_local.h
index 56402a2b04..e5189361e0 100644
--- a/src/lib/libcrypto/ec/ec_local.h
+++ b/src/lib/libcrypto/ec/ec_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_local.h,v 1.36 2024/11/01 05:10:40 tb Exp $ */
+/* $OpenBSD: ec_local.h,v 1.37 2024/11/12 10:53:22 tb Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -252,45 +252,6 @@ struct ec_point_st {
 int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
         size_t num, const EC_POINT *points[], const BIGNUM *scalars[], BN_CTX *);
 
-/* method functions in ecp_smpl.c */
-int ec_GFp_simple_group_init(EC_GROUP *);
-void ec_GFp_simple_group_finish(EC_GROUP *);
-int ec_GFp_simple_group_copy(EC_GROUP *, const EC_GROUP *);
-int ec_GFp_simple_group_set_curve(EC_GROUP *, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *);
-int ec_GFp_simple_group_get_curve(const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *);
-int ec_GFp_simple_group_get_degree(const EC_GROUP *);
-int ec_GFp_simple_group_check_discriminant(const EC_GROUP *, BN_CTX *);
-int ec_GFp_simple_point_init(EC_POINT *);
-void ec_GFp_simple_point_finish(EC_POINT *);
-int ec_GFp_simple_point_copy(EC_POINT *, const EC_POINT *);
-int ec_GFp_simple_point_set_to_infinity(const EC_GROUP *, EC_POINT *);
-int ec_GFp_simple_set_Jprojective_coordinates(const EC_GROUP *, EC_POINT *,
-    const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *);
-int ec_GFp_simple_get_Jprojective_coordinates(const EC_GROUP *,
-    const EC_POINT *, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *);
-int ec_GFp_simple_point_set_affine_coordinates(const EC_GROUP *, EC_POINT *,
-        const BIGNUM *x, const BIGNUM *y, BN_CTX *);
-int ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *, const EC_POINT *,
-        BIGNUM *x, BIGNUM *y, BN_CTX *);
-int ec_GFp_simple_set_compressed_coordinates(const EC_GROUP *, EC_POINT *,
-        const BIGNUM *x, int y_bit, BN_CTX *);
-int ec_GFp_simple_add(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *);
-int ec_GFp_simple_dbl(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, BN_CTX *);
-int ec_GFp_simple_invert(const EC_GROUP *, EC_POINT *, BN_CTX *);
-int ec_GFp_simple_is_at_infinity(const EC_GROUP *, const EC_POINT *);
-int ec_GFp_simple_is_on_curve(const EC_GROUP *, const EC_POINT *, BN_CTX *);
-int ec_GFp_simple_cmp(const EC_GROUP *, const EC_POINT *a, const EC_POINT *b, BN_CTX *);
-int ec_GFp_simple_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *);
-int ec_GFp_simple_points_make_affine(const EC_GROUP *, size_t num, EC_POINT *[], BN_CTX *);
-int ec_GFp_simple_field_mul(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *);
-int ec_GFp_simple_field_sqr(const EC_GROUP *, BIGNUM *r, const BIGNUM *a, BN_CTX *);
-int ec_GFp_simple_blind_coordinates(const EC_GROUP *group, EC_POINT *p, BN_CTX *ctx);
-int ec_GFp_simple_mul_generator_ct(const EC_GROUP *, EC_POINT *r, const BIGNUM *scalar, BN_CTX *);
-int ec_GFp_simple_mul_single_ct(const EC_GROUP *, EC_POINT *r, const BIGNUM *scalar,
-        const EC_POINT *point, BN_CTX *);
-int ec_GFp_simple_mul_double_nonct(const EC_GROUP *, EC_POINT *r, const BIGNUM *g_scalar,
-        const BIGNUM *p_scalar, const EC_POINT *point, BN_CTX *);
-
 int ec_group_simple_order_bits(const EC_GROUP *group);
 int ec_point_blind_coordinates(const EC_GROUP *group, EC_POINT *p, BN_CTX *ctx);
 
diff --git a/src/lib/libcrypto/ec/ecp_methods.c b/src/lib/libcrypto/ec/ecp_methods.c
index f3c9f05850..6770ef839b 100644
--- a/src/lib/libcrypto/ec/ecp_methods.c
+++ b/src/lib/libcrypto/ec/ecp_methods.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_methods.c,v 1.3 2024/11/12 10:44:25 tb Exp $ */
+/* $OpenBSD: ecp_methods.c,v 1.4 2024/11/12 10:53:22 tb Exp $ */
 /* Includes code written by Lenka Fibikova <fibikova@exp-math.uni-essen.de>
  * for the OpenSSL project.
  * Includes code written by Bodo Moeller for the OpenSSL project.
@@ -86,7 +86,7 @@
  * representation (i.e. 'encoding' means multiplying by some factor R).
  */
 
-int
+static int
 ec_GFp_simple_group_init(EC_GROUP *group)
 {
         BN_init(&group->field);
@@ -96,7 +96,7 @@ ec_GFp_simple_group_init(EC_GROUP *group)
         return 1;
 }
 
-void
+static void
 ec_GFp_simple_group_finish(EC_GROUP *group)
 {
         BN_free(&group->field);
@@ -104,7 +104,7 @@ ec_GFp_simple_group_finish(EC_GROUP *group)
         BN_free(&group->b);
 }
 
-int
+static int
 ec_GFp_simple_group_copy(EC_GROUP *dest, const EC_GROUP *src)
 {
         if (!bn_copy(&dest->field, &src->field))
@@ -160,7 +160,7 @@ ec_encode_z_coordinate(const EC_GROUP *group, BIGNUM *bn, int *is_one,
         return 1;
 }
 
-int
+static int
 ec_GFp_simple_group_set_curve(EC_GROUP *group,
     const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
 {
@@ -202,7 +202,7 @@ ec_GFp_simple_group_set_curve(EC_GROUP *group,
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_group_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a,
     BIGNUM *b, BN_CTX *ctx)
 {
@@ -218,13 +218,13 @@ ec_GFp_simple_group_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a,
         return 1;
 }
 
-int
+static int
 ec_GFp_simple_group_get_degree(const EC_GROUP *group)
 {
         return BN_num_bits(&group->field);
 }
 
-int
+static int
 ec_GFp_simple_group_check_discriminant(const EC_GROUP *group, BN_CTX *ctx)
 {
         BIGNUM *p, *a, *b, *discriminant;
@@ -281,7 +281,7 @@ ec_GFp_simple_group_check_discriminant(const EC_GROUP *group, BN_CTX *ctx)
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_point_init(EC_POINT * point)
 {
         BN_init(&point->X);
@@ -292,7 +292,7 @@ ec_GFp_simple_point_init(EC_POINT * point)
         return 1;
 }
 
-void
+static void
 ec_GFp_simple_point_finish(EC_POINT *point)
 {
         BN_free(&point->X);
@@ -301,7 +301,7 @@ ec_GFp_simple_point_finish(EC_POINT *point)
         point->Z_is_one = 0;
 }
 
-int
+static int
 ec_GFp_simple_point_copy(EC_POINT *dest, const EC_POINT *src)
 {
         if (!bn_copy(&dest->X, &src->X))
@@ -315,7 +315,7 @@ ec_GFp_simple_point_copy(EC_POINT *dest, const EC_POINT *src)
         return 1;
 }
 
-int
+static int
 ec_GFp_simple_point_set_to_infinity(const EC_GROUP *group, EC_POINT *point)
 {
         point->Z_is_one = 0;
@@ -323,7 +323,7 @@ ec_GFp_simple_point_set_to_infinity(const EC_GROUP *group, EC_POINT *point)
         return 1;
 }
 
-int
+static int
 ec_GFp_simple_set_Jprojective_coordinates(const EC_GROUP *group,
     EC_POINT *point, const BIGNUM *x, const BIGNUM *y, const BIGNUM *z,
     BN_CTX *ctx)
@@ -355,7 +355,7 @@ ec_GFp_simple_set_Jprojective_coordinates(const EC_GROUP *group,
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_get_Jprojective_coordinates(const EC_GROUP *group,
     const EC_POINT *point, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx)
 {
@@ -374,7 +374,7 @@ ec_GFp_simple_get_Jprojective_coordinates(const EC_GROUP *group,
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_point_set_affine_coordinates(const EC_GROUP *group, EC_POINT *point,
     const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx)
 {
@@ -387,7 +387,7 @@ ec_GFp_simple_point_set_affine_coordinates(const EC_GROUP *group, EC_POINT *poin
             BN_value_one(), ctx);
 }
 
-int
+static int
 ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *group,
     const EC_POINT *point, BIGNUM *x, BIGNUM *y, BN_CTX *ctx)
 {
@@ -468,7 +468,7 @@ ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *group,
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_set_compressed_coordinates(const EC_GROUP *group,
     EC_POINT *point, const BIGNUM *in_x, int y_bit, BN_CTX *ctx)
 {
@@ -566,7 +566,7 @@ ec_GFp_simple_set_compressed_coordinates(const EC_GROUP *group,
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx)
 {
         int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
@@ -748,7 +748,7 @@ ec_GFp_simple_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const E
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx)
 {
         int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
@@ -882,7 +882,7 @@ ec_GFp_simple_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_invert(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
 {
         if (EC_POINT_is_at_infinity(group, point) || BN_is_zero(&point->Y))
@@ -892,13 +892,13 @@ ec_GFp_simple_invert(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
         return BN_usub(&point->Y, &group->field, &point->Y);
 }
 
-int
+static int
 ec_GFp_simple_is_at_infinity(const EC_GROUP *group, const EC_POINT *point)
 {
         return BN_is_zero(&point->Z);
 }
 
-int
+static int
 ec_GFp_simple_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx)
 {
         int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
@@ -995,7 +995,7 @@ ec_GFp_simple_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx)
 {
         /*
@@ -1091,7 +1091,7 @@ ec_GFp_simple_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, B
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
 {
         BIGNUM *x, *y;
@@ -1123,7 +1123,7 @@ ec_GFp_simple_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx)
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_points_make_affine(const EC_GROUP *group, size_t num, EC_POINT *points[], BN_CTX *ctx)
 {
         BIGNUM *tmp0, *tmp1;
@@ -1292,13 +1292,13 @@ ec_GFp_simple_points_make_affine(const EC_GROUP *group, size_t num, EC_POINT *po
         return ret;
 }
 
-int
+static int
 ec_GFp_simple_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
 {
         return BN_mod_mul(r, a, b, &group->field, ctx);
 }
 
-int
+static int
 ec_GFp_simple_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)
 {
         return BN_mod_sqr(r, a, &group->field, ctx);
@@ -1311,7 +1311,7 @@ ec_GFp_simple_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, BN_CT
  *
  * where lambda is in the interval [1, group->field).
  */
-int
+static int
 ec_GFp_simple_blind_coordinates(const EC_GROUP *group, EC_POINT *p, BN_CTX *ctx)
 {
         BIGNUM *lambda = NULL;
@@ -1586,21 +1586,21 @@ ec_GFp_simple_mul_ct(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
 #undef EC_POINT_BN_set_flags
 #undef EC_POINT_CSWAP
 
-int
+static int
 ec_GFp_simple_mul_generator_ct(const EC_GROUP *group, EC_POINT *r,
     const BIGNUM *scalar, BN_CTX *ctx)
 {
         return ec_GFp_simple_mul_ct(group, r, scalar, NULL, ctx);
 }
 
-int
+static int
 ec_GFp_simple_mul_single_ct(const EC_GROUP *group, EC_POINT *r,
     const BIGNUM *scalar, const EC_POINT *point, BN_CTX *ctx)
 {
         return ec_GFp_simple_mul_ct(group, r, scalar, point, ctx);
 }
 
-int
+static int
 ec_GFp_simple_mul_double_nonct(const EC_GROUP *group, EC_POINT *r,
     const BIGNUM *g_scalar, const BIGNUM *p_scalar, const EC_POINT *point,
     BN_CTX *ctx)