Generate, store and retreive elliptic curve keys.

[u/mdw/catacomb] / ec-fetch.c

/* -*-c-*-
 *
 * $Id: ec-fetch.c,v 1.1 2004/03/28 01:58:47 mdw Exp $
 *
 * Key fetching for elliptic curve public and private keys
 *
 * (c) 2004 Straylight/Edgeware
 */

/*----- Licensing notice --------------------------------------------------* 
 *
 * This file is part of Catacomb.
 *
 * Catacomb is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Library General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * Catacomb is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with Catacomb; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 */

/*----- Revision history --------------------------------------------------* 
 *
 * $Log: ec-fetch.c,v $
 * Revision 1.1  2004/03/28 01:58:47  mdw
 * Generate, store and retreive elliptic curve keys.
 *
 */

/*----- Header files ------------------------------------------------------*/

#include "ec-keys.h"
#include "key.h"

/*----- Key fetching ------------------------------------------------------*/

const key_fetchdef ec_paramfetch[] = {
  { "curve",	offsetof(ec_pub, cstr),		KENC_STRING,	0 },
  { 0,		0,				0,		0 }
};

const key_fetchdef ec_pubfetch[] = {
  { "curve",	offsetof(ec_pub, cstr),		KENC_STRING,	0 },
  { "p",	offsetof(ec_pub, p),		KENC_EC,	0 },
  { 0,		0,				0,		0 }
};

static const key_fetchdef priv[] = {
  { "x",	offsetof(ec_priv, x),		KENC_MP,	0 },
  { 0,		0,				0,		0 }
};

const key_fetchdef ec_privfetch[] = {
  { "curve",	offsetof(ec_pub, cstr),		KENC_STRING,	0 },
  { "p",	offsetof(ec_pub, p),		KENC_EC,	0 },
  { "private",	0,				KENC_STRUCT,	priv },
  { 0,		0,				0,		0 }  
};

/* --- @ec_paramfree@, @ec_pubfree@, @ec_privfree@ --- *
 *
 * Arguments:	@ec_param *ep@, @ec_pub *ep@, @ec_priv *ep@ = pointer to
 *			key block to free
 *
 * Returns:	---
 *
 * Use:		Frees an elliptic curve key block
 */

void ec_paramfree(ec_param *ep)
{
  if (ep->ei.c) ec_freeinfo(&ep->ei);
  xfree(ep->cstr);
}

void ec_pubfree(ec_pub *ep)
{
  if (ep->ei.c) ec_freeinfo(&ep->ei);
  xfree(ep->cstr);
  EC_DESTROY(&ep->p);
}

void ec_privfree(ec_priv *ep)
{
  if (ep->ei.c) ec_freeinfo(&ep->ei);
  xfree(ep->cstr);
  EC_DESTROY(&ep->p);
  mp_drop(ep->x);
}

/*----- That's all, folks -------------------------------------------------*/