git.distorted.org.uk Git - u/mdw/catacomb/blob - math/ec-raw.h

   1 /* -*-c-*-
   2  *
   3  * Raw formatting of elliptic curve points
   4  *
   5  * (c) 2004 Straylight/Edgeware
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This file is part of Catacomb.
  11  *
  12  * Catacomb is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU Library General Public License as
  14  * published by the Free Software Foundation; either version 2 of the
  15  * License, or (at your option) any later version.
  16  *
  17  * Catacomb is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU Library General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Library General Public
  23  * License along with Catacomb; if not, write to the Free
  24  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  25  * MA 02111-1307, USA.
  26  */
  27
  28 #ifndef CATACOMB_EC_RAW_H
  29 #define CATACOMB_EC_RAW_H
  30
  31 #ifdef __cplusplus
  32   extern "C" {
  33 #endif
  34
  35 /*----- Header files ------------------------------------------------------*/
  36
  37 #ifndef CATACOMB_BUF_H
  38 #  include "buf.h"
  39 #endif
  40
  41 #ifndef CATACOMB_EC_H
  42 #  include "ec.h"
  43 #endif
  44
  45 /*----- Data formatting ---------------------------------------------------*/
  46
  47 /* --- @ec_putraw@ --- *
  48  *
  49  * Arguments:   @ec_curve *c@ = elliptic curve
  50  *              @buf *b@ = pointer to a buffer
  51  *              @const ec *p@ = an elliptic curve point
  52  *
  53  * Returns:     Zero on success, nonzero on failure.
  54  *
  55  * Use:         Puts an elliptic curve point to the given buffer using the
  56  *              standard uncompressed format described in P1383 and SEC1.
  57  *              We don't do point compression.
  58  */
  59
  60 extern int ec_putraw(ec_curve */*c*/, buf */*b*/, const ec */*p*/);
  61
  62 /* --- @ec_getraw@ --- *
  63  *
  64  * Arguments:   @ec_curve *c@ = elliptic curve
  65  *              @buf *b@ = pointer to a buffer
  66  *              @ec *d@ = an elliptic curve point
  67  *
  68  * Returns:     Zero on success, nonzero on failure.
  69  *
  70  * Use:         Reads an elliptic curve point from the given buffer using the
  71  *              standard uncompressed format described in P1383 and SEC1.
  72  *              We don't do point compression.
  73  */
  74
  75 extern int ec_getraw(ec_curve */*c*/, buf */*b*/, ec */*d*/);
  76
  77 /*----- That's all, folks -------------------------------------------------*/
  78
  79 #ifdef __cplusplus
  80   }
  81 #endif
  82
  83 #endif