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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 00:31:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 00:31:19 +0000
commit6e33fee6f4a7e2041dd276995b402ca036fcab14 (patch)
tree85be5c41f2715d7d4d24cfa220197f1e2c778259 /lib/luks1/af.h
parentInitial commit. (diff)
downloadcryptsetup-upstream/2%2.1.0.tar.xz
cryptsetup-upstream/2%2.1.0.zip
Adding upstream version 2:2.1.0.upstream/2%2.1.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/luks1/af.h')
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1 files changed, 64 insertions, 0 deletions
diff --git a/lib/luks1/af.h b/lib/luks1/af.h
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+/*
+ * AFsplitter - Anti forensic information splitter
+ *
+ * Copyright (C) 2004 Clemens Fruhwirth <clemens@endorphin.org>
+ * Copyright (C) 2009-2019 Red Hat, Inc. All rights reserved.
+ *
+ * AFsplitter diffuses information over a large stripe of data,
+ * therefore supporting secure data destruction.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef INCLUDED_CRYPTSETUP_LUKS_AF_H
+#define INCLUDED_CRYPTSETUP_LUKS_AF_H
+
+#include <stddef.h>
+
+/*
+ * AF_split operates on src and produces information split data in
+ * dst. src is assumed to be of the length blocksize. The data stripe
+ * dst points to must be capable of storing blocksize*blocknumbers.
+ * blocknumbers is the data multiplication factor.
+ *
+ * AF_merge does just the opposite: reproduces the information stored in
+ * src of the length blocksize*blocknumbers into dst of the length
+ * blocksize.
+ *
+ * On error, both functions return -1, 0 otherwise.
+ */
+
+int AF_split(struct crypt_device *ctx, const char *src, char *dst,
+ size_t blocksize, unsigned int blocknumbers, const char *hash);
+int AF_merge(struct crypt_device *ctx, const char *src, char *dst, size_t blocksize,
+ unsigned int blocknumbers, const char *hash);
+size_t AF_split_sectors(size_t blocksize, unsigned int blocknumbers);
+
+int LUKS_encrypt_to_storage(
+ char *src, size_t srcLength,
+ const char *cipher,
+ const char *cipher_mode,
+ struct volume_key *vk,
+ unsigned int sector,
+ struct crypt_device *ctx);
+
+int LUKS_decrypt_from_storage(
+ char *dst, size_t dstLength,
+ const char *cipher,
+ const char *cipher_mode,
+ struct volume_key *vk,
+ unsigned int sector,
+ struct crypt_device *ctx);
+
+#endif