lcx_groestl.h

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/*******************************************************************************
 *   Ledger Nano S - Secure firmware
 *   (c) 2022 Ledger
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 ********************************************************************************/
 
#ifdef HAVE_GROESTL
 
#ifndef LCX_GROESTL_H
#define LCX_GROESTL_H
 
#include <stdint.h>
 
#include "lcx_wrappers.h"
 
#define ROWS     8
#define COLS1024 16
#define SIZE1024 (ROWS * COLS1024)
typedef unsigned char BitSequence;
struct hashState_s {
    uint8_t      chaining[ROWS][COLS1024];  
    uint64_t     block_counter;             
    unsigned int hashlen;                   
    BitSequence  buffer[SIZE1024];          
    unsigned int buf_ptr;                   
    unsigned int columns;                   
    unsigned int rounds;                    
    unsigned int statesize;                 
};
typedef struct hashState_s hashState;
 
struct cx_groestl_s {
    unsigned int       output_size;  
    struct hashState_s ctx;          
};
typedef struct cx_groestl_s cx_groestl_t;
 
size_t cx_groestl_get_output_size(const cx_groestl_t *ctx);
 
WARN_UNUSED_RESULT cx_err_t cx_groestl_init_no_throw(cx_groestl_t *hash, size_t size);
 
DEPRECATED static inline void cx_groestl_init(cx_groestl_t *hash, unsigned int size)
{
    CX_THROW(cx_groestl_init_no_throw(hash, size));
}
 
WARN_UNUSED_RESULT cx_err_t cx_groestl(cx_groestl_t  *hash,
                                       uint32_t       mode,
                                       const uint8_t *in,
                                       size_t         len,
                                       uint8_t       *out,
                                       size_t         out_len);
 
WARN_UNUSED_RESULT cx_err_t cx_groestl_update(cx_groestl_t *ctx, const uint8_t *data, size_t len);
 
// No need to add WARN_UNUSED_RESULT to cx_groestl_final(), it always returns CX_OK
cx_err_t cx_groestl_final(cx_groestl_t *ctx, uint8_t *digest);
 
#endif
 
#endif  // HAVE_GROESTL