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/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Code Aurora Forum, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 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 __CRYPTO_HASH_H__
#define __CRYPYO_HASH_H__
#ifndef NULL
#define NULL 0
#endif
#define TRUE 1
#define FALSE 0
#define SHA256_INIT_VECTOR_SIZE 8
#define SHA1_INIT_VECTOR_SIZE 5
#define CRYPTO_SHA_BLOCK_SIZE 64
#define CRYPTO_MAX_AUTH_BLOCK_SIZE 0xFA00
#define CRYPTO_ERR_NONE 0x01
#define CRYPTO_ERR_FAIL 0x02
typedef enum {
CRYPTO_SHA_ERR_NONE,
CRYPTO_SHA_ERR_BUSY,
CRYPTO_SHA_ERR_FAIL,
CRYPTO_SHA_ERR_INVALID_PARAM,
} crypto_result_type;
typedef enum {
CRYPTO_ENGINE_TYPE_NONE,
CRYPTO_ENGINE_TYPE_SW,
CRYPTO_ENGINE_TYPE_HW,
}crypto_engine_type;
typedef enum {
CRYPTO_AUTH_ALG_SHA1 = 1,
CRYPTO_AUTH_ALG_SHA256
} crypto_auth_alg_type;
typedef struct {
unsigned int auth_bytecnt[2];
unsigned char saved_buff[64];
unsigned char saved_buff_indx;
unsigned int auth_iv[5];
unsigned char flags;
} crypto_SHA1_ctx;
typedef struct {
unsigned int auth_bytecnt[2];
unsigned char saved_buff[64];
unsigned char saved_buff_indx;
unsigned int auth_iv[8];
unsigned char flags;
} crypto_SHA256_ctx;
extern void crypto_eng_reset(void);
extern void crypto_eng_init(void);
extern void crypto_set_sha_ctx(void *ctx_ptr,
unsigned int bytes_to_write,
crypto_auth_alg_type auth_alg,
bool first, bool last);
extern void crypto_send_data(void *ctx_ptr,
unsigned char *data_ptr, unsigned int buff_size,
unsigned int bytes_to_write,
unsigned int *ret_status);
extern void crypto_get_digest(unsigned char *digest_ptr,
unsigned int *ret_status,
crypto_auth_alg_type auth_alg, bool last);
extern void crypto_get_ctx(void *ctx_ptr);
static void crypto_init(void);
static crypto_result_type do_sha(unsigned char *buff_ptr,
unsigned int buff_size,
unsigned char *digest_ptr,
crypto_auth_alg_type auth_alg);
static crypto_result_type do_sha_update(void *ctx_ptr,
unsigned char *buff_ptr,
unsigned int buff_size,
crypto_auth_alg_type auth_alg,
bool first, bool last);
static unsigned int calc_num_bytes_to_send(void *ctx_ptr,
unsigned int buff_size, bool last);
static crypto_result_type crypto_sha256(unsigned char *buff_ptr,
unsigned int buff_size,
unsigned char *digest_ptr);
static crypto_result_type crypto_sha1(unsigned char *buff_ptr,
unsigned int buff_size,
unsigned char *digest_ptr);
#endif