src/crypto.h

   1 /*
   2     Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
   3     Ben Kibbey <bjk@luxsci.net>
   4
   5     This file is part of pwmd.
   6
   7     Pwmd is free software: you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published by
   9     the Free Software Foundation, either version 2 of the License, or
  10     (at your option) any later version.
  11
  12     Pwmd is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15     GNU General Public License for more details.
  16
  17     You should have received a copy of the GNU General Public License
  18     along with Pwmd.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20 #ifndef CRYPTO_H
  21 #define CRYPTO_H
  22
  23 #include <assuan.h>
  24 #include <gpg-error.h>
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <gpgme.h>
  28 #include <time.h>
  29
  30 #ifdef HAVE_STDINT_H
  31 #include <stdint.h>
  32 #elif defined (HAVE_INTTYPES_H)
  33 #include <inttypes.h>
  34 #endif
  35
  36 #include "common.h"
  37
  38 struct save_s
  39 {
  40   char **pubkey;                /* SAVE --keyid */
  41   char **sigkey;                /* SAVE --sign-keyid */
  42 };
  43
  44 struct crypto_s
  45 {
  46   assuan_context_t client_ctx;
  47   gpgme_ctx_t ctx;
  48   unsigned char *plaintext;
  49   size_t plaintext_size;
  50   gpgme_data_t cipher;
  51   char **pubkey;
  52   char **sigkey;
  53   char *filename;               /* the currently opened data file */
  54   struct save_s save;
  55   gpg_error_t progress_rc;
  56   time_t status_timeout;
  57 };
  58
  59 gpgme_error_t crypto_init (struct crypto_s **, void *, const char *, int);
  60 gpgme_error_t crypto_init_ctx (struct crypto_s *, int);
  61 gpgme_error_t crypto_genkey (struct client_s *, struct crypto_s *,
  62                              const unsigned char *);
  63 gpgme_error_t crypto_encrypt (struct client_s *, struct crypto_s *);
  64 gpgme_error_t crypto_decrypt (struct client_s *, struct crypto_s *);
  65 gpgme_error_t crypto_passwd (struct client_s *, struct crypto_s *);
  66 void crypto_cleanup (struct crypto_s *);
  67 void crypto_cleanup_save (struct save_s *);
  68 void crypto_cleanup_non_keys (struct crypto_s *);
  69 gpgme_error_t crypto_data_to_buf (const gpgme_data_t, unsigned char **,
  70                                   size_t *);
  71 char *crypto_default_key_params ();
  72 gpg_error_t crypto_write_file (struct crypto_s *);
  73 gpgme_error_t crypto_list_keys (struct crypto_s *, char **, int secret,
  74                                 gpgme_key_t **);
  75 char *crypto_key_info (const gpgme_key_t);
  76 void crypto_free_key_list (gpgme_key_t *);
  77 gpg_error_t crypto_try_decrypt (struct client_s *, int);
  78
  79 #endif