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