lib/gnutls_cert.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2010 Free
   3  * Software Foundation, Inc.
   4  *
   5  * Author: Nikos Mavrogiannopoulos
   6  *
   7  * This file is part of GnuTLS.
   8  *
   9  * The GnuTLS is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public License
  11  * as published by the Free Software Foundation; either version 2.1 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  22  * USA
  23  *
  24  */
  25
  26 #ifndef GNUTLS_CERT_H
  27 #define GNUTLS_CERT_H
  28
  29 #include <gnutls_pk.h>
  30 #include "x509/x509_int.h"
  31 #include <gnutls/openpgp.h>
  32
  33 #define MAX_PUBLIC_PARAMS_SIZE 4        /* ok for RSA and DSA */
  34
  35 /* parameters should not be larger than this limit */
  36 #define DSA_PUBLIC_PARAMS 4
  37 #define RSA_PUBLIC_PARAMS 2
  38
  39 typedef struct gnutls_cert
  40 {
  41   /* the size of params depends on the public
  42    * key algorithm
  43    * RSA: [0] is modulus
  44    *      [1] is public exponent
  45    * DSA: [0] is p
  46    *      [1] is q
  47    *      [2] is g
  48    *      [3] is public key
  49    */
  50   bigint_t params[MAX_PUBLIC_PARAMS_SIZE];
  51   int params_size;              /* holds the size of MPI params */
  52
  53   gnutls_pk_algorithm_t subject_pk_algorithm;
  54
  55   unsigned int key_usage;       /* bits from KEY_*
  56                                  */
  57
  58   unsigned int version;
  59   /* holds the type (PGP, X509)
  60    */
  61   gnutls_certificate_type_t cert_type;
  62   gnutls_sign_algorithm_t sign_algo;
  63
  64   gnutls_datum_t raw;
  65
  66 #ifdef ENABLE_OPENPGP
  67   int use_subkey;
  68   uint8_t subkey_id[GNUTLS_OPENPGP_KEYID_SIZE];
  69 #endif
  70 } gnutls_cert;
  71
  72 /* because gnutls_session_t is not defined when this file is included */
  73 struct gnutls_session_int;
  74
  75 typedef enum ConvFlags
  76 {
  77   CERT_NO_COPY = 2,
  78   CERT_ONLY_PUBKEY = 4,
  79   CERT_ONLY_EXTENSIONS = 16
  80 } ConvFlags;
  81
  82 int _gnutls_x509_raw_cert_to_gcert (gnutls_cert * gcert,
  83                                     const gnutls_datum_t * derCert,
  84                                     int flags);
  85 int _gnutls_x509_crt_to_gcert (gnutls_cert * gcert, gnutls_x509_crt_t cert,
  86                                unsigned int flags);
  87
  88 void _gnutls_gcert_deinit (gnutls_cert * cert);
  89
  90 int _gnutls_selected_cert_supported_kx (struct gnutls_session_int *session,
  91                                         gnutls_kx_algorithm_t ** alg,
  92                                         int *alg_size);
  93
  94 #endif