"Fossies" - the Fresh Open Source Software Archive

Member "cryptsetup-2.4.3/lib/luks1/af.h" (13 Jan 2022, 2362 Bytes) of package /linux/misc/cryptsetup-2.4.3.tar.xz:


As a special service "Fossies" has tried to format the requested source page into HTML format using (guessed) C and C++ source code syntax highlighting (style: standard) with prefixed line numbers and code folding option. Alternatively you can here view or download the uninterpreted source code file. For more information about "af.h" see the Fossies "Dox" file reference documentation and the last Fossies "Diffs" side-by-side code changes report: 2.3.6_vs_2.4.0.

    1 /*
    2  * AFsplitter - Anti forensic information splitter
    3  *
    4  * Copyright (C) 2004 Clemens Fruhwirth <clemens@endorphin.org>
    5  * Copyright (C) 2009-2021 Red Hat, Inc. All rights reserved.
    6  *
    7  * AFsplitter diffuses information over a large stripe of data,
    8  * therefore supporting secure data destruction.
    9  *
   10  * This program is free software; you can redistribute it and/or
   11  * modify it under the terms of the GNU General Public License
   12  * as published by the Free Software Foundation; either version 2
   13  * of the License, or (at your option) any later version.
   14  *
   15  * This program is distributed in the hope that it will be useful,
   16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18  * GNU Library General Public License for more details.
   19  *
   20  * You should have received a copy of the GNU General Public License
   21  * along with this program; if not, write to the Free Software
   22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   23  */
   24 #ifndef INCLUDED_CRYPTSETUP_LUKS_AF_H
   25 #define INCLUDED_CRYPTSETUP_LUKS_AF_H
   26 
   27 #include <stddef.h>
   28 
   29 struct crypt_device;
   30 struct volume_key;
   31 
   32 /*
   33  * AF_split operates on src and produces information split data in
   34  * dst. src is assumed to be of the length blocksize. The data stripe
   35  * dst points to must be capable of storing blocksize*blocknumbers.
   36  * blocknumbers is the data multiplication factor.
   37  *
   38  * AF_merge does just the opposite: reproduces the information stored in
   39  * src of the length blocksize*blocknumbers into dst of the length
   40  * blocksize.
   41  *
   42  * On error, both functions return -1, 0 otherwise.
   43  */
   44 
   45 int AF_split(struct crypt_device *ctx, const char *src, char *dst,
   46          size_t blocksize, unsigned int blocknumbers, const char *hash);
   47 int AF_merge(struct crypt_device *ctx, const char *src, char *dst, size_t blocksize,
   48          unsigned int blocknumbers, const char *hash);
   49 size_t AF_split_sectors(size_t blocksize, unsigned int blocknumbers);
   50 
   51 int LUKS_encrypt_to_storage(
   52     char *src, size_t srcLength,
   53     const char *cipher,
   54     const char *cipher_mode,
   55     struct volume_key *vk,
   56     unsigned int sector,
   57     struct crypt_device *ctx);
   58 
   59 int LUKS_decrypt_from_storage(
   60     char *dst, size_t dstLength,
   61     const char *cipher,
   62     const char *cipher_mode,
   63     struct volume_key *vk,
   64     unsigned int sector,
   65     struct crypt_device *ctx);
   66 
   67 #endif