52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* AFsplitter - Anti forensic information splitter
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*
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* Copyright (C) 2004 Clemens Fruhwirth <clemens@endorphin.org>
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* Copyright (C) 2009-2024 Red Hat, Inc. All rights reserved.
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*/
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#ifndef INCLUDED_CRYPTSETUP_LUKS_AF_H
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#define INCLUDED_CRYPTSETUP_LUKS_AF_H
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#include <stddef.h>
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struct crypt_device;
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struct volume_key;
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/*
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* AF_split operates on src and produces information split data in
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* dst. src is assumed to be of the length blocksize. The data stripe
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* dst points to must be capable of storing blocksize*blocknumbers.
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* blocknumbers is the data multiplication factor.
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*
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* AF_merge does just the opposite: reproduces the information stored in
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* src of the length blocksize*blocknumbers into dst of the length
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* blocksize.
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*
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* On error, both functions return -1, 0 otherwise.
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*/
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int AF_split(struct crypt_device *ctx, const char *src, char *dst,
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size_t blocksize, unsigned int blocknumbers, const char *hash);
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int AF_merge(const char *src, char *dst, size_t blocksize,
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unsigned int blocknumbers, const char *hash);
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size_t AF_split_sectors(size_t blocksize, unsigned int blocknumbers);
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int LUKS_encrypt_to_storage(
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char *src, size_t srcLength,
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const char *cipher,
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const char *cipher_mode,
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struct volume_key *vk,
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unsigned int sector,
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struct crypt_device *ctx);
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int LUKS_decrypt_from_storage(
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char *dst, size_t dstLength,
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const char *cipher,
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const char *cipher_mode,
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struct volume_key *vk,
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unsigned int sector,
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struct crypt_device *ctx);
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#endif
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