pqc/common/fips202.h

#ifndef FIPS202_H
#define FIPS202_H

#include <stdint.h>

#define SHAKE128_RATE 168
#define SHAKE256_RATE 136
#define SHA3_256_RATE 136
#define SHA3_512_RATE 72

void shake128_absorb(uint64_t *s, const unsigned char *input,
                     unsigned long long inlen);

void shake128_squeezeblocks(unsigned char *output, unsigned long nblocks,
                            uint64_t *s);

void shake256_absorb(uint64_t *s, const unsigned char *input,
                     unsigned long long inlen);

void shake256_squeezeblocks(unsigned char *output, unsigned long nblocks,
                            uint64_t *s);

void shake128(unsigned char *output, unsigned long long outlen,
              const unsigned char *input, unsigned long long inlen);

void shake256(unsigned char *output, unsigned long long outlen,
              const unsigned char *input, unsigned long long inlen);

void sha3_256(unsigned char *output, const unsigned char *input,
              unsigned long long inlen);
void sha3_512(unsigned char *output, const unsigned char *input,
              unsigned long long inlen);

#endif