git.distorted.org.uk Git - u/mdw/catacomb/blob - pub/rsa-fetch.c

   1 /* -*-c-*-
   2  *
   3  * Key fetching for RSA public and private keys
   4  *
   5  * (c) 2000 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 /*----- Header files ------------------------------------------------------*/
  29
  30 #include "key.h"
  31 #include "rsa.h"
  32
  33 /*----- Key fetching ------------------------------------------------------*/
  34
  35 const key_fetchdef rsa_pubfetch[] = {
  36   { "n",        offsetof(rsa_pub, n),           KENC_MP,        0 },
  37   { "e",        offsetof(rsa_pub, e),           KENC_MP,        0 },
  38   { 0,          0,                              0,              0 }
  39 };
  40
  41 static const key_fetchdef priv[] = {
  42   { "p",        offsetof(rsa_priv, p),          KENC_MP,        0 },
  43   { "q",        offsetof(rsa_priv, q),          KENC_MP,        0 },
  44   { "q-inv",    offsetof(rsa_priv, q_inv),      KENC_MP,        0 },
  45   { "d",        offsetof(rsa_priv, d),          KENC_MP,        0 },
  46   { "d-mod-p",  offsetof(rsa_priv, dp),         KENC_MP,        0 },
  47   { "d-mod-q",  offsetof(rsa_priv, dq),         KENC_MP,        0 },
  48   { 0,          0,                              0,              0 }
  49 };
  50
  51 const key_fetchdef rsa_privfetch[] = {
  52   { "n",        offsetof(rsa_priv, n),          KENC_MP,        0 },
  53   { "e",        offsetof(rsa_priv, e),          KENC_MP,        0 },
  54   { "private",  0,                              KENC_STRUCT,    priv },
  55   { 0,          0,                              0,              0 }
  56 };
  57
  58 /* --- @rsa_pubfree@, @rsa_privfree@ --- *
  59  *
  60  * Arguments:   @rsa_pub *rp@, @rsa_priv *rp@ = pointer to key block
  61  *
  62  * Returns:     ---
  63  *
  64  * Use:         Frees an RSA key block.
  65  */
  66
  67 void rsa_pubfree(rsa_pub *rp)
  68 {
  69   mp_drop(rp->n);
  70   mp_drop(rp->e);
  71 }
  72
  73 void rsa_privfree(rsa_priv *rp)
  74 {
  75   mp_drop(rp->n);
  76   mp_drop(rp->e);
  77   mp_drop(rp->p);
  78   mp_drop(rp->q);
  79   mp_drop(rp->q_inv);
  80   mp_drop(rp->d);
  81   mp_drop(rp->dp);
  82   mp_drop(rp->dq);
  83 }
  84
  85 /*----- That's all, folks -------------------------------------------------*/