lib/gnutls_pk.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_PK_H
  27 #define GNUTLS_PK_H
  28
  29 extern int crypto_pk_prio;
  30 extern gnutls_crypto_pk_st _gnutls_pk_ops;
  31
  32 #define _gnutls_pk_encrypt( algo, ciphertext, plaintext, params) _gnutls_pk_ops.encrypt( algo, ciphertext, plaintext, params)
  33 #define _gnutls_pk_decrypt( algo, ciphertext, plaintext, params) _gnutls_pk_ops.decrypt( algo, ciphertext, plaintext, params)
  34 #define _gnutls_pk_sign( algo, sig, data, params) _gnutls_pk_ops.sign( algo, sig, data, params)
  35 #define _gnutls_pk_verify( algo, data, sig, params) _gnutls_pk_ops.verify( algo, data, sig, params)
  36
  37 inline static int
  38 _gnutls_pk_fixup (gnutls_pk_algorithm_t algo, gnutls_direction_t direction,
  39                   gnutls_pk_params_st * params)
  40 {
  41   if (_gnutls_pk_ops.pk_fixup_private_params)
  42     return _gnutls_pk_ops.pk_fixup_private_params (algo, direction, params);
  43   return 0;
  44 }
  45
  46 int _gnutls_pk_params_copy (gnutls_pk_params_st * dst, bigint_t * params,
  47                             int params_len);
  48
  49 int _gnutls_rsa_generate_params (bigint_t * resarr, unsigned int *resarr_len,
  50                                  int bits);
  51 int _gnutls_dsa_generate_params (bigint_t * resarr, unsigned int *resarr_len,
  52                                  int bits);
  53
  54 /* The internal PK interface */
  55 int _gnutls_pkcs1_rsa_encrypt (gnutls_datum_t * ciphertext,
  56                                const gnutls_datum_t * plaintext,
  57                                bigint_t * params, unsigned params_len,
  58                                unsigned btype);
  59 int _gnutls_dsa_sign (gnutls_datum_t * signature,
  60                       const gnutls_datum_t * plaintext, bigint_t * params,
  61                       unsigned params_len);
  62 int _gnutls_pkcs1_rsa_decrypt (gnutls_datum_t * plaintext,
  63                                const gnutls_datum_t * ciphertext,
  64                                bigint_t * params, unsigned params_len,
  65                                unsigned btype);
  66 int _gnutls_rsa_verify (const gnutls_datum_t * vdata,
  67                         const gnutls_datum_t * ciphertext, bigint_t * params,
  68                         int params_len, int btype);
  69 int _gnutls_dsa_verify (const gnutls_datum_t * vdata,
  70                         const gnutls_datum_t * sig_value, bigint_t * params,
  71                         int params_len);
  72
  73 int
  74 _gnutls_encode_ber_rs (gnutls_datum_t * sig_value, bigint_t r, bigint_t s);
  75
  76 int
  77 _gnutls_decode_ber_rs (const gnutls_datum_t * sig_value, bigint_t * r,
  78                        bigint_t * s);
  79
  80 int _gnutls_calc_rsa_exp (bigint_t * params, unsigned int params_size);
  81
  82 int _gnutls_pk_get_hash_algorithm (gnutls_pk_algorithm_t pk,
  83                                    bigint_t * params, int params_size,
  84                                    gnutls_digest_algorithm_t * dig,
  85                                    unsigned int *mand);
  86
  87 #endif /* GNUTLS_PK_H */