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

   1 /* -*-c-*-
   2  *
   3  * $Id: ec-raw.h,v 1.1 2004/04/04 19:04:11 mdw Exp $
   4  *
   5  * Raw formatting of elliptic curve points
   6  *
   7  * (c) 2004 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of Catacomb.
  13  *
  14  * Catacomb is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * Catacomb is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with Catacomb; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Revision history --------------------------------------------------*
  31  *
  32  * $Log: ec-raw.h,v $
  33  * Revision 1.1  2004/04/04 19:04:11  mdw
  34  * Raw I/O of elliptic curve points and group elements.
  35  *
  36  */
  37
  38 #ifndef CATACOMB_EC_RAW_H
  39 #define CATACOMB_EC_RAW_H
  40
  41 #ifdef __cplusplus
  42   extern "C" {
  43 #endif
  44
  45 /*----- Header files ------------------------------------------------------*/
  46
  47 #ifndef CATACOMB_BUF_H
  48 #  include "buf.h"
  49 #endif
  50
  51 #ifndef CATACOMB_EC_H
  52 #  include "ec.h"
  53 #endif
  54
  55 /*----- Data formatting ---------------------------------------------------*/
  56
  57 /* --- @ec_putraw@ --- *
  58  *
  59  * Arguments:   @ec_curve *c@ = elliptic curve
  60  *              @buf *b@ = pointer to a buffer
  61  *              @const ec *p@ = an elliptic curve point
  62  *
  63  * Returns:     Zero on success, nonzero on failure.
  64  *
  65  * Use:         Puts an elliptic curve point to the given buffer using the
  66  *              standard uncompressed format described in P1383 and SEC1.
  67  *              We don't do point compression.
  68  */
  69
  70 extern int ec_putraw(ec_curve */*c*/, buf */*b*/, const ec */*p*/);
  71
  72 /* --- @ec_getraw@ --- *
  73  *
  74  * Arguments:   @ec_curve *c@ = elliptic curve
  75  *              @buf *b@ = pointer to a buffer
  76  *              @ec *d@ = an elliptic curve point
  77  *
  78  * Returns:     Zero on success, nonzero on failure.
  79  *
  80  * Use:         Reads an elliptic curve point from the given buffer using the
  81  *              standard uncompressed format described in P1383 and SEC1.
  82  *              We don't do point compression.
  83  */
  84
  85 extern int ec_getraw(ec_curve */*c*/, buf */*b*/, ec */*d*/);
  86
  87 /*----- That's all, folks -------------------------------------------------*/
  88
  89 #ifdef __cplusplus
  90   }
  91 #endif
  92
  93 #endif