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100 lines
3.9 KiB
100 lines
3.9 KiB
/*-
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* Copyright 2009 Colin Percival
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* Copyright 2013 Alexander Peslyak
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file was originally written by Colin Percival as part of the Tarsnap
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* online backup system.
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*/
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#ifndef crypto_scrypt_H
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#define crypto_scrypt_H
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#include <limits.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "private/quirks.h"
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#if SIZE_MAX > 0xffffffffULL
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#define ARCH_BITS 64
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#else
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#define ARCH_BITS 32
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#endif
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#define crypto_pwhash_scryptsalsa208sha256_STRPREFIXBYTES 14
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#define crypto_pwhash_scryptsalsa208sha256_STRSETTINGBYTES 57
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#define crypto_pwhash_scryptsalsa208sha256_STRSALTBYTES 32
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#define crypto_pwhash_scryptsalsa208sha256_STRSALTBYTES_ENCODED 43
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#define crypto_pwhash_scryptsalsa208sha256_STRHASHBYTES 32
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#define crypto_pwhash_scryptsalsa208sha256_STRHASHBYTES_ENCODED 43
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#define BYTES2CHARS(bytes) ((((bytes) *8) + 5) / 6)
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typedef struct {
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void * base, *aligned;
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size_t size;
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} escrypt_region_t;
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typedef union {
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uint64_t d[8];
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uint32_t w[16];
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} escrypt_block_t;
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typedef escrypt_region_t escrypt_local_t;
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int escrypt_init_local(escrypt_local_t *__local);
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int escrypt_free_local(escrypt_local_t *__local);
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void *escrypt_alloc_region(escrypt_region_t *region, size_t size);
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int escrypt_free_region(escrypt_region_t *region);
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typedef int (*escrypt_kdf_t)(escrypt_local_t *__local, const uint8_t *__passwd,
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size_t __passwdlen, const uint8_t *__salt,
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size_t __saltlen, uint64_t __N, uint32_t __r,
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uint32_t __p, uint8_t *__buf, size_t __buflen);
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int escrypt_kdf_nosse(escrypt_local_t *__local, const uint8_t *__passwd,
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size_t __passwdlen, const uint8_t *__salt,
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size_t __saltlen, uint64_t __N, uint32_t __r,
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uint32_t __p, uint8_t *__buf, size_t __buflen);
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int escrypt_kdf_sse(escrypt_local_t *__local, const uint8_t *__passwd,
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size_t __passwdlen, const uint8_t *__salt,
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size_t __saltlen, uint64_t __N, uint32_t __r,
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uint32_t __p, uint8_t *__buf, size_t __buflen);
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uint8_t *escrypt_r(escrypt_local_t *__local, const uint8_t *__passwd,
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size_t __passwdlen, const uint8_t *__setting,
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uint8_t *__buf, size_t __buflen);
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uint8_t *escrypt_gensalt_r(uint32_t __N_log2, uint32_t __r, uint32_t __p,
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const uint8_t *__src, size_t __srclen,
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uint8_t *__buf, size_t __buflen);
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const uint8_t *escrypt_parse_setting(const uint8_t *setting,
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uint32_t *N_log2_p, uint32_t *r_p,
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uint32_t *p_p);
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#endif /* !_CRYPTO_SCRYPT_H_ */
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