internal-forkskinny.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
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef LW_INTERNAL_FORKSKINNY_H
#define LW_INTERNAL_FORKSKINNY_H

#include "internal-util.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
    uint32_t TK1[4];        
    uint32_t TK2[4];        
    uint32_t S[4];          
} forkskinny_128_256_state_t;

typedef struct
{
    uint32_t TK1[4];        
    uint32_t TK2[4];        
    uint32_t TK3[4];        
    uint32_t S[4];          
} forkskinny_128_384_state_t;

typedef struct
{
    uint16_t TK1[4];    
    uint16_t TK2[4];    
    uint16_t TK3[4];    
    uint16_t S[4];      
} forkskinny_64_192_state_t;

void forkskinny_128_256_rounds
    (forkskinny_128_256_state_t *state, unsigned first, unsigned last);

void forkskinny_128_256_inv_rounds
    (forkskinny_128_256_state_t *state, unsigned first, unsigned last);

void forkskinny_128_256_forward_tk
    (forkskinny_128_256_state_t *state, unsigned rounds);

void forkskinny_128_256_reverse_tk
    (forkskinny_128_256_state_t *state, unsigned rounds);

void forkskinny_128_384_rounds
    (forkskinny_128_384_state_t *state, unsigned first, unsigned last);

void forkskinny_128_384_inv_rounds
    (forkskinny_128_384_state_t *state, unsigned first, unsigned last);

void forkskinny_128_384_forward_tk
    (forkskinny_128_384_state_t *state, unsigned rounds);

void forkskinny_128_384_reverse_tk
    (forkskinny_128_384_state_t *state, unsigned rounds);

void forkskinny_64_192_rounds
    (forkskinny_64_192_state_t *state, unsigned first, unsigned last);

void forkskinny_64_192_inv_rounds
    (forkskinny_64_192_state_t *state, unsigned first, unsigned last);

void forkskinny_64_192_forward_tk
    (forkskinny_64_192_state_t *state, unsigned rounds);

void forkskinny_64_192_reverse_tk
    (forkskinny_64_192_state_t *state, unsigned rounds);

void forkskinny_128_256_encrypt
    (const unsigned char key[32], unsigned char *output_left,
     unsigned char *output_right, const unsigned char *input);

void forkskinny_128_256_decrypt
    (const unsigned char key[32], unsigned char *output_left,
     unsigned char *output_right, const unsigned char *input);

void forkskinny_128_384_encrypt
    (const unsigned char key[48], unsigned char *output_left,
     unsigned char *output_right, const unsigned char *input);

void forkskinny_128_384_decrypt
    (const unsigned char key[48], unsigned char *output_left,
     unsigned char *output_right, const unsigned char *input);

void forkskinny_64_192_encrypt
    (const unsigned char key[24], unsigned char *output_left,
     unsigned char *output_right, const unsigned char *input);

void forkskinny_64_192_decrypt
    (const unsigned char key[24], unsigned char *output_left,
     unsigned char *output_right, const unsigned char *input);

#ifdef __cplusplus
}
#endif

#endif