sha3.h

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/*
 * SPDX-FileCopyrightText: Keccak, Keyak and Ketje Teams
 * SPDX-FileCopyrightText: Guido Bertoni
 * SPDX-FileCopyrightText: Joan Daemen
 * SPDX-FileCopyrightText: Michaël Peeters
 * SPDX-FileCopyrightText: Gilles Van Assche
 * SPDX-FileCopyrightText: Ronny Van Keer
 * SPDX-FileCopyrightText: 2017-2018 Mathias Tausig
 * SPDX-License-Identifier: CC0-1.0
 */

 
#ifndef HASHES_SHA3_H
#define HASHES_SHA3_H
 
#include <stdlib.h>
 
#ifdef __cplusplus
extern "C" {
#endif

#define SHA3_256_DIGEST_LENGTH 32

#define SHA3_384_DIGEST_LENGTH 48

#define SHA3_512_DIGEST_LENGTH 64

typedef struct {
    unsigned char state[200];
    unsigned int i;
    unsigned char delimitedSuffix;
    unsigned int rate;
    unsigned int capacity;
    unsigned int rateInBytes;
} keccak_state_t;

void Keccak_init(keccak_state_t *ctx, unsigned int rate, unsigned int capacity,
                 unsigned char delimitedSuffix);

void Keccak_update(keccak_state_t *ctx, const unsigned char *input,
                   unsigned long long int inputByteLen);

void Keccak_final(keccak_state_t *ctx, unsigned char *output,
                  unsigned long long int outputByteLen);

void sha3_256_init(keccak_state_t *ctx);

void sha3_update(keccak_state_t *ctx, const void *data, size_t len);

void sha3_256_final(keccak_state_t *ctx, void *digest);

void sha3_384_init(keccak_state_t *ctx);

void sha3_384_final(keccak_state_t *ctx, void *digest);

void sha3_512_init(keccak_state_t *ctx);

 
void sha3_512_final(keccak_state_t *ctx, void *digest);

void sha3_256(void *digest, const void *data, size_t len);

void sha3_384(void *digest, const void *data, size_t len);

void sha3_512(void *digest, const void *data, size_t len);
 
#ifdef __cplusplus
}
#endif
 
#endif /* HASHES_SHA3_H */