sha3.h

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/*-
 * Implementation by the Keccak, Keyak and Ketje Teams, namely, Guido Bertoni,
 * Joan Daemen, Michaël Peeters, Gilles Van Assche and Ronny Van Keer, hereby
 * denoted as "the implementer".
 *
 * RIOT-OS adaptation by Mathias Tausig
 *
 * This software is released under the Creative Commons CC0 1.0 license.
 * To the extent possible under law, the implementer has waived all copyright
 * and related or neighboring rights to the source code in this file.
 * For more information see: http://creativecommons.org/publicdomain/zero/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 */