crypto/ec/ecp_mont.c

   1 /* crypto/ec/ecp_mont.c */
   2 /* ====================================================================
   3  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this
  18  *    software must display the following acknowledgment:
  19  *    "This product includes software developed by the OpenSSL Project
  20  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  21  *
  22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23  *    endorse or promote products derived from this software without
  24  *    prior written permission. For written permission, please contact
  25  *    openssl-core@openssl.org.
  26  *
  27  * 5. Products derived from this software may not be called "OpenSSL"
  28  *    nor may "OpenSSL" appear in their names without prior written
  29  *    permission of the OpenSSL Project.
  30  *
  31  * 6. Redistributions of any form whatsoever must retain the following
  32  *    acknowledgment:
  33  *    "This product includes software developed by the OpenSSL Project
  34  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47  * OF THE POSSIBILITY OF SUCH DAMAGE.
  48  * ====================================================================
  49  *
  50  * This product includes cryptographic software written by Eric Young
  51  * (eay@cryptsoft.com).  This product includes software written by Tim
  52  * Hudson (tjh@cryptsoft.com).
  53  *
  54  */
  55
  56 #include "ec_lcl.h"
  57
  58
  59 const EC_METHOD *EC_GFp_mont_method(void)
  60         {
  61         static const EC_METHOD ret = {
  62                 ec_GFp_mont_group_init,
  63                 ec_GFp_mont_group_set_curve_GFp,
  64                 ec_GFp_mont_group_finish,
  65                 ec_GFp_mont_group_clear_finish,
  66                 ec_GFp_mont_group_copy,
  67                 ec_GFp_simple_group_set_generator,
  68                 /* TODO: 'set' and 'get' functions for EC_GROUPs */
  69                 ec_GFp_simple_point_init,
  70                 ec_GFp_simple_point_finish,
  71                 ec_GFp_simple_point_clear_finish,
  72                 ec_GFp_simple_point_copy,
  73                 ec_GFp_simple_point_set_to_infinity,
  74                 ec_GFp_simple_set_Jprojective_coordinates_GFp,
  75                 ec_GFp_simple_get_Jprojective_coordinates_GFp,
  76                 ec_GFp_simple_point_set_affine_coordinates_GFp,
  77                 ec_GFp_simple_point_get_affine_coordinates_GFp,
  78                 ec_GFp_simple_set_compressed_coordinates_GFp,
  79                 ec_GFp_simple_point2oct,
  80                 ec_GFp_simple_oct2point,
  81                 ec_GFp_simple_add,
  82                 ec_GFp_simple_dbl,
  83                 ec_GFp_simple_invert,
  84                 ec_GFp_simple_is_at_infinity,
  85                 ec_GFp_simple_is_on_curve,
  86                 ec_GFp_simple_cmp,
  87                 ec_GFp_simple_make_affine,
  88                 ec_GFp_mont_field_mul,
  89                 ec_GFp_mont_field_sqr,
  90                 ec_GFp_mont_field_encode,
  91                 ec_GFp_mont_field_decode };
  92
  93         return &ret;
  94         }
  95
  96
  97 int ec_GFp_mont_group_init(EC_GROUP *group)
  98         {
  99         int ok;
 100
 101         ok = ec_GFp_simple_group_init(group);
 102         group->field_data = NULL;
 103         return ok;
 104         }
 105
 106
 107 int ec_GFp_mont_group_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
 108 /* TODO */
 109
 110
 111 void ec_GFp_mont_group_finish(EC_GROUP *group);
 112 /* TODO */
 113
 114
 115 void ec_GFp_mont_group_clear_finish(EC_GROUP *group);
 116 /* TODO */
 117
 118
 119 int ec_GFp_mont_group_copy(EC_GROUP *dest, const EC_GROUP *src);
 120 /* TODO */
 121
 122
 123 int ec_GFp_mont_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
 124 /* TODO */
 125
 126
 127 int ec_GFp_mont_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
 128 /* TODO */
 129
 130
 131 int ec_GFp_mont_field_encode(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
 132 /* TODO */
 133
 134
 135 int ec_GFp_mont_field_decode(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
 136 /* TODO */