src/gcrypt/crypto.h

   1 /* libquvi
   2  * Copyright (C) 2013  Toni Gundogdu <legatvs@gmail.com>
   3  *
   4  * This file is part of libquvi <http://quvi.sourceforge.net/>.
   5  *
   6  * This library is free software: you can redistribute it and/or
   7  * modify it under the terms of the GNU Affero General Public
   8  * License as published by the Free Software Foundation, either
   9  * version 3 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General
  17  * Public License along with this library.  If not, see
  18  * <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef crypto_h
  22
  23 typedef enum
  24 {
  25   CRYPTO_MODE_ENCRYPT,
  26   CRYPTO_MODE_DECRYPT,
  27   CRYPTO_MODE_HASH
  28 } CryptoMode;
  29
  30 struct crypto_s
  31 {
  32   struct
  33   {
  34     gboolean should_pad;
  35     gcry_cipher_hd_t h;
  36     gsize blklen;
  37     gsize keylen;
  38     guint flags;
  39     gchar *key;
  40     gint mode;
  41   } cipher;
  42   struct
  43   {
  44     guchar *data;
  45     gsize dlen;
  46   } out;
  47   CryptoMode mode;
  48   gchar *errmsg;
  49   gint algo;
  50   gint rc;
  51 };
  52
  53 typedef struct crypto_s *crypto_t;
  54
  55 crypto_t crypto_new(const gchar*, const CryptoMode, gchar*,
  56                     const gint, const guint);
  57 void crypto_free(crypto_t);
  58
  59 gint crypto_exec(crypto_t, const guchar*, const gsize);
  60
  61 void crypto_dump(const gchar*, const guchar*, const gsize);
  62 gboolean crypto_ok(crypto_t);
  63
  64 gchar *crypto_bytes2hex(const guchar*, const gsize);
  65 guchar *crypto_hex2bytes(const gchar*, gsize*);
  66
  67 #endif /* crypto_h */
  68
  69 /* vim: set ts=2 sw=2 tw=72 expandtab: */
  70