internal-sliscp-light-m.h

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/*
 * Copyright (C) 2020 Southern Storm Software, Pty Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * DEALINGS IN THE SOFTWARE.
 */

#ifndef LW_INTERNAL_SLISCP_LIGHT_M_H
#define LW_INTERNAL_SLISCP_LIGHT_M_H

#include "internal-masking.h"

#ifdef __cplusplus
extern "C" {
#endif

/* Load a big-endian 24-bit word from a byte buffer */
#define be_load_word24(ptr) \
    ((((uint32_t)((ptr)[0])) << 16) | \
     (((uint32_t)((ptr)[1])) << 8) | \
      ((uint32_t)((ptr)[2])))

/* Store a big-endian 24-bit word into a byte buffer */
#define be_store_word24(ptr, x) \
    do { \
        uint32_t _x = (x); \
        (ptr)[0] = (uint8_t)(_x >> 16); \
        (ptr)[1] = (uint8_t)(_x >> 8); \
        (ptr)[2] = (uint8_t)_x; \
    } while (0)

void sliscp_light192_permute_masked(mask_uint32_t block[8]);

void sliscp_light192_reduce_masked(mask_uint32_t block[8]);

void sliscp_light192_mask
    (mask_uint32_t output[8], const unsigned char input[24]);

void sliscp_light192_unmask
    (unsigned char output[24], const mask_uint32_t input[8]);

void sliscp_light256_permute_masked(mask_uint32_t block[8], unsigned rounds);

void sliscp_light256_mask
    (mask_uint32_t output[8], const unsigned char input[32]);

void sliscp_light256_unmask
    (unsigned char output[32], const mask_uint32_t input[8]);

void sliscp_light320_permute_masked(mask_uint32_t block[10]);

void sliscp_light320_mask
    (mask_uint32_t output[10], const unsigned char input[40]);

void sliscp_light320_unmask
    (unsigned char output[40], const mask_uint32_t input[10]);

#ifdef __cplusplus
}
#endif

#endif