Prepare to provide EC_GROUP_order_bits()

ok jsing

11 files changed, 45 insertions, 18 deletions

diff --git a/src/lib/libcrypto/ec/ec.h b/src/lib/libcrypto/ec/ec.h
index 61b70897f9..b1cba7d6c8 100644
--- a/src/lib/libcrypto/ec/ec.h
+++ b/src/lib/libcrypto/ec/ec.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec.h,v 1.24 2021/05/10 16:58:19 tb Exp $ */
+/* $OpenBSD: ec.h,v 1.25 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -250,6 +250,10 @@ const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
  */
 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
 
+#if defined(LIBRESSL_INTERNAL)
+int EC_GROUP_order_bits(const EC_GROUP *group);
+#endif
+
 /** Gets the cofactor of a EC_GROUP
  *  \param  group     EC_GROUP object
  *  \param  cofactor  BIGNUM to which the cofactor is copied
diff --git a/src/lib/libcrypto/ec/ec2_smpl.c b/src/lib/libcrypto/ec/ec2_smpl.c
index f99615a0d5..9f3b380bfe 100644
--- a/src/lib/libcrypto/ec/ec2_smpl.c
+++ b/src/lib/libcrypto/ec/ec2_smpl.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec2_smpl.c,v 1.22 2021/04/20 17:16:37 tb Exp $ */
+/* $OpenBSD: ec2_smpl.c,v 1.23 2021/09/08 17:29:21 tb Exp $ */
 /* ====================================================================
  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  *
@@ -88,17 +88,18 @@ EC_GF2m_simple_method(void)
                 .group_set_curve = ec_GF2m_simple_group_set_curve,
                 .group_get_curve = ec_GF2m_simple_group_get_curve,
                 .group_get_degree = ec_GF2m_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
-                ec_GF2m_simple_group_check_discriminant,
+                    ec_GF2m_simple_group_check_discriminant,
                 .point_init = ec_GF2m_simple_point_init,
                 .point_finish = ec_GF2m_simple_point_finish,
                 .point_clear_finish = ec_GF2m_simple_point_clear_finish,
                 .point_copy = ec_GF2m_simple_point_copy,
                 .point_set_to_infinity = ec_GF2m_simple_point_set_to_infinity,
                 .point_set_affine_coordinates =
-                ec_GF2m_simple_point_set_affine_coordinates,
+                    ec_GF2m_simple_point_set_affine_coordinates,
                 .point_get_affine_coordinates =
-                ec_GF2m_simple_point_get_affine_coordinates,
+                    ec_GF2m_simple_point_get_affine_coordinates,
                 .add = ec_GF2m_simple_add,
                 .dbl = ec_GF2m_simple_dbl,
                 .invert = ec_GF2m_simple_invert,
diff --git a/src/lib/libcrypto/ec/ec_lcl.h b/src/lib/libcrypto/ec/ec_lcl.h
index a0343aa1d2..ced04c7e31 100644
--- a/src/lib/libcrypto/ec/ec_lcl.h
+++ b/src/lib/libcrypto/ec/ec_lcl.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_lcl.h,v 1.17 2021/04/20 17:32:57 tb Exp $ */
+/* $OpenBSD: ec_lcl.h,v 1.18 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -111,7 +111,8 @@ struct ec_method_st {
 
         /* used by EC_GROUP_get_degree: */
         int (*group_get_degree)(const EC_GROUP *);
-
+        /* used by EC_GROUP_order_bits: */
+        int (*group_order_bits)(const EC_GROUP *);
         /* used by EC_GROUP_check: */
         int (*group_check_discriminant)(const EC_GROUP *, BN_CTX *);
 
@@ -282,7 +283,7 @@ void EC_EX_DATA_clear_free_data(EC_EXTRA_DATA **,
 void EC_EX_DATA_free_all_data(EC_EXTRA_DATA **);
 void EC_EX_DATA_clear_free_all_data(EC_EXTRA_DATA **);
 
-
+int ec_group_simple_order_bits(const EC_GROUP *group);
 
 struct ec_point_st {
         const EC_METHOD *meth;
@@ -297,8 +298,6 @@ struct ec_point_st {
         int Z_is_one; /* enable optimized point arithmetics for special case */
 } /* EC_POINT */;
 
-
-
 /* method functions in ec_mult.c
  * (ec_lib.c uses these as defaults if group->method->mul is 0) */
 int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
diff --git a/src/lib/libcrypto/ec/ec_lib.c b/src/lib/libcrypto/ec/ec_lib.c
index e763e6b70c..994fd2d4c1 100644
--- a/src/lib/libcrypto/ec/ec_lib.c
+++ b/src/lib/libcrypto/ec/ec_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_lib.c,v 1.39 2021/04/20 17:29:21 tb Exp $ */
+/* $OpenBSD: ec_lib.c,v 1.40 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -401,6 +401,11 @@ EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx)
         return !BN_is_zero(order);
 }
 
+int
+EC_GROUP_order_bits(const EC_GROUP *group)
+{
+        return group->meth->group_order_bits(group);
+}
 
 int 
 EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx)
@@ -1261,6 +1266,17 @@ EC_GROUP_have_precompute_mult(const EC_GROUP * group)
                                  * been performed */
 }
 
+int
+ec_group_simple_order_bits(const EC_GROUP *group)
+{
+        /* XXX change group->order to a pointer? */
+#if 0
+        if (group->order == NULL)
+                return 0;
+#endif
+        return BN_num_bits(&group->order);
+}
+
 EC_KEY *
 ECParameters_dup(EC_KEY *key)
 {
diff --git a/src/lib/libcrypto/ec/ecp_mont.c b/src/lib/libcrypto/ec/ecp_mont.c
index f371e3ec8f..0da3083d8e 100644
--- a/src/lib/libcrypto/ec/ecp_mont.c
+++ b/src/lib/libcrypto/ec/ecp_mont.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_mont.c,v 1.19 2021/04/20 17:38:02 tb Exp $ */
+/* $OpenBSD: ecp_mont.c,v 1.20 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -79,6 +79,7 @@ EC_GFp_mont_method(void)
                 .group_set_curve = ec_GFp_mont_group_set_curve,
                 .group_get_curve = ec_GFp_simple_group_get_curve,
                 .group_get_degree = ec_GFp_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
                     ec_GFp_simple_group_check_discriminant,
                 .point_init = ec_GFp_simple_point_init,
diff --git a/src/lib/libcrypto/ec/ecp_nist.c b/src/lib/libcrypto/ec/ecp_nist.c
index 14ebe7d126..f7dae16e47 100644
--- a/src/lib/libcrypto/ec/ecp_nist.c
+++ b/src/lib/libcrypto/ec/ecp_nist.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_nist.c,v 1.17 2021/04/20 17:38:02 tb Exp $ */
+/* $OpenBSD: ecp_nist.c,v 1.18 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Written by Nils Larsch for the OpenSSL project.
  */
@@ -80,6 +80,7 @@ EC_GFp_nist_method(void)
                 .group_set_curve = ec_GFp_nist_group_set_curve,
                 .group_get_curve = ec_GFp_simple_group_get_curve,
                 .group_get_degree = ec_GFp_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
                     ec_GFp_simple_group_check_discriminant,
                 .point_init = ec_GFp_simple_point_init,
diff --git a/src/lib/libcrypto/ec/ecp_nistp224.c b/src/lib/libcrypto/ec/ecp_nistp224.c
index 4ed45df896..9ef9dc3585 100644
--- a/src/lib/libcrypto/ec/ecp_nistp224.c
+++ b/src/lib/libcrypto/ec/ecp_nistp224.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_nistp224.c,v 1.26 2021/04/20 17:38:02 tb Exp $ */
+/* $OpenBSD: ecp_nistp224.c,v 1.27 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Written by Emilia Kasper (Google) for the OpenSSL project.
  */
@@ -243,6 +243,7 @@ EC_GFp_nistp224_method(void)
                 .group_set_curve = ec_GFp_nistp224_group_set_curve,
                 .group_get_curve = ec_GFp_simple_group_get_curve,
                 .group_get_degree = ec_GFp_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
                     ec_GFp_simple_group_check_discriminant,
                 .point_init = ec_GFp_simple_point_init,
diff --git a/src/lib/libcrypto/ec/ecp_nistp256.c b/src/lib/libcrypto/ec/ecp_nistp256.c
index 57b003aefa..e13621c7b6 100644
--- a/src/lib/libcrypto/ec/ecp_nistp256.c
+++ b/src/lib/libcrypto/ec/ecp_nistp256.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_nistp256.c,v 1.25 2021/04/20 17:38:02 tb Exp $ */
+/* $OpenBSD: ecp_nistp256.c,v 1.26 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Written by Adam Langley (Google) for the OpenSSL project
  */
@@ -1697,6 +1697,7 @@ EC_GFp_nistp256_method(void)
                 .group_set_curve = ec_GFp_nistp256_group_set_curve,
                 .group_get_curve = ec_GFp_simple_group_get_curve,
                 .group_get_degree = ec_GFp_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
                     ec_GFp_simple_group_check_discriminant,
                 .point_init = ec_GFp_simple_point_init,
diff --git a/src/lib/libcrypto/ec/ecp_nistp521.c b/src/lib/libcrypto/ec/ecp_nistp521.c
index db2060668c..994c1039d6 100644
--- a/src/lib/libcrypto/ec/ecp_nistp521.c
+++ b/src/lib/libcrypto/ec/ecp_nistp521.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_nistp521.c,v 1.26 2021/04/20 17:38:02 tb Exp $ */
+/* $OpenBSD: ecp_nistp521.c,v 1.27 2021/09/08 17:29:21 tb Exp $ */
 /*
  * Written by Adam Langley (Google) for the OpenSSL project
  */
@@ -1587,6 +1587,7 @@ EC_GFp_nistp521_method(void)
                 .group_set_curve = ec_GFp_nistp521_group_set_curve,
                 .group_get_curve = ec_GFp_simple_group_get_curve,
                 .group_get_degree = ec_GFp_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
                     ec_GFp_simple_group_check_discriminant,
                 .point_init = ec_GFp_simple_point_init,
diff --git a/src/lib/libcrypto/ec/ecp_nistz256.c b/src/lib/libcrypto/ec/ecp_nistz256.c
index 619249964b..05a16b8c07 100644
--- a/src/lib/libcrypto/ec/ecp_nistz256.c
+++ b/src/lib/libcrypto/ec/ecp_nistz256.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: ecp_nistz256.c,v 1.9 2021/04/20 17:28:18 tb Exp $     */
+/*      $OpenBSD: ecp_nistz256.c,v 1.10 2021/09/08 17:29:21 tb Exp $    */
 /* Copyright (c) 2014, Intel Corporation.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -1152,6 +1152,7 @@ EC_GFp_nistz256_method(void)
                 .group_set_curve = ec_GFp_mont_group_set_curve,
                 .group_get_curve = ec_GFp_simple_group_get_curve,
                 .group_get_degree = ec_GFp_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
                     ec_GFp_simple_group_check_discriminant,
                 .point_init = ec_GFp_simple_point_init,
diff --git a/src/lib/libcrypto/ec/ecp_smpl.c b/src/lib/libcrypto/ec/ecp_smpl.c
index 96ab5bd44e..1d0b1d6106 100644
--- a/src/lib/libcrypto/ec/ecp_smpl.c
+++ b/src/lib/libcrypto/ec/ecp_smpl.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_smpl.c,v 1.32 2021/04/20 17:38:02 tb Exp $ */
+/* $OpenBSD: ecp_smpl.c,v 1.33 2021/09/08 17:29:21 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.
@@ -80,6 +80,7 @@ EC_GFp_simple_method(void)
                 .group_set_curve = ec_GFp_simple_group_set_curve,
                 .group_get_curve = ec_GFp_simple_group_get_curve,
                 .group_get_degree = ec_GFp_simple_group_get_degree,
+                .group_order_bits = ec_group_simple_order_bits,
                 .group_check_discriminant =
                     ec_GFp_simple_group_check_discriminant,
                 .point_init = ec_GFp_simple_point_init,