d13aad830e
Refactor crypto utility functions in a separate file. Add HMAC verification for file header. Add a few extra input validation checks. Include space in chunk header for HMAC.
90 lines
3 KiB
C
90 lines
3 KiB
C
/*-
|
|
* Copyright (c) 2001-2003 Allan Saddi <allan@saddi.com>
|
|
* Copyright (c) 2012 Moinak Ghosh moinakg <at1> gm0il <dot> com
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef _APS_SHA256_H
|
|
#define _APS_SHA256_H
|
|
|
|
#if HAVE_INTTYPES_H
|
|
# include <inttypes.h>
|
|
#else
|
|
# if HAVE_STDINT_H
|
|
# include <stdint.h>
|
|
# endif
|
|
#endif
|
|
|
|
#include <utils.h>
|
|
|
|
#define SHA256_HASH_SIZE 32
|
|
|
|
/* Hash size in 32-bit words */
|
|
#define SHA256_HASH_WORDS 8
|
|
|
|
typedef struct _SHA256_Context {
|
|
uint64_t totalLength, blocks;
|
|
uint32_t hash[SHA256_HASH_WORDS];
|
|
uint32_t bufferLength;
|
|
union {
|
|
uint32_t words[16];
|
|
uint8_t bytes[64];
|
|
} buffer;
|
|
} SHA256_Context;
|
|
|
|
typedef struct HMAC_SHA256Context {
|
|
SHA256_Context ictx;
|
|
SHA256_Context octx;
|
|
} HMAC_SHA256_Context;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifndef APS_NAMESPACE
|
|
#define APS_NAMESPACE(name) opt_##name
|
|
#endif /* !APS_NAMESPACE */
|
|
|
|
void APS_NAMESPACE(SHA256_Init) (SHA256_Context *sc);
|
|
void APS_NAMESPACE(SHA256_Update) (SHA256_Context *sc, const void *data, size_t len);
|
|
void APS_NAMESPACE(SHA256_Final) (SHA256_Context *sc, uint8_t hash[SHA256_HASH_SIZE]);
|
|
int APS_NAMESPACE(Init_SHA) (processor_info_t *pc);
|
|
|
|
void APS_NAMESPACE(HMAC_SHA256_Init) (HMAC_SHA256_Context * ctx, const void * _K, size_t Klen);
|
|
void APS_NAMESPACE(HMAC_SHA256_Update) (HMAC_SHA256_Context * ctx, const void *in, size_t len);
|
|
void APS_NAMESPACE(HMAC_SHA256_Final) (HMAC_SHA256_Context * ctx, unsigned char digest[32]);
|
|
|
|
/*
|
|
* Intel's optimized SHA256 core routines. These routines are described in an
|
|
* Intel White-Paper:
|
|
* "Fast SHA-256 Implementations on Intel Architecture Processors"
|
|
*/
|
|
extern void sha256_sse4(void *input_data, uint32_t digest[8], uint64_t num_blks);
|
|
extern void sha256_avx(void *input_data, uint32_t digest[8], uint64_t num_blks);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* !_APS_SHA256_H */
|