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// keccak.h
// 19-Nov-11 Markku-Juhani O. Saarinen <mjos@iki.fi>
#ifndef KECCAK_H
#define KECCAK_H
#include <stdint.h>
#include <string.h>
#ifndef KECCAK_ROUNDS
#define KECCAK_ROUNDS 24
#endif
#ifndef ROTL64
#define ROTL64(x, y) (((x) << (y)) | ((x) >> (64 - (y))))
#endif
// compute a keccak hash (md) of given byte length from "in"
int keccak(const uint8_t *in, int inlen, uint8_t *md, int mdlen);
// update the state
void keccakf(uint64_t st[25], int norounds);
void keccak1600(const uint8_t *in, int inlen, uint8_t *md);
#endif
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