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#ifndef crypto_core_ristretto255_H
#define crypto_core_ristretto255_H
#include <stddef.h>
#include "export.h"
#ifdef __cplusplus
extern "C" {
#endif
#define crypto_core_ristretto255_BYTES 32
SODIUM_EXPORT
size_t crypto_core_ristretto255_bytes(void);
#define crypto_core_ristretto255_HASHBYTES 64
SODIUM_EXPORT
size_t crypto_core_ristretto255_hashbytes(void);
#define crypto_core_ristretto255_SCALARBYTES 32
SODIUM_EXPORT
size_t crypto_core_ristretto255_scalarbytes(void);
#define crypto_core_ristretto255_NONREDUCEDSCALARBYTES 64
SODIUM_EXPORT
size_t crypto_core_ristretto255_nonreducedscalarbytes(void);
SODIUM_EXPORT
int crypto_core_ristretto255_is_valid_point(const unsigned char *p)
__attribute__ ((nonnull));
SODIUM_EXPORT
int crypto_core_ristretto255_add(unsigned char *r,
const unsigned char *p, const unsigned char *q)
__attribute__ ((nonnull));
SODIUM_EXPORT
int crypto_core_ristretto255_sub(unsigned char *r,
const unsigned char *p, const unsigned char *q)
__attribute__ ((nonnull));
SODIUM_EXPORT
int crypto_core_ristretto255_from_hash(unsigned char *p,
const unsigned char *r)
__attribute__ ((nonnull));
SODIUM_EXPORT
void crypto_core_ristretto255_random(unsigned char *p)
__attribute__ ((nonnull));
SODIUM_EXPORT
void crypto_core_ristretto255_scalar_random(unsigned char *r)
__attribute__ ((nonnull));
SODIUM_EXPORT
int crypto_core_ristretto255_scalar_invert(unsigned char *recip,
const unsigned char *s)
__attribute__ ((nonnull));
SODIUM_EXPORT
void crypto_core_ristretto255_scalar_negate(unsigned char *neg,
const unsigned char *s)
__attribute__ ((nonnull));
SODIUM_EXPORT
void crypto_core_ristretto255_scalar_complement(unsigned char *comp,
const unsigned char *s)
__attribute__ ((nonnull));
SODIUM_EXPORT
void crypto_core_ristretto255_scalar_add(unsigned char *z,
const unsigned char *x,
const unsigned char *y)
__attribute__ ((nonnull));
SODIUM_EXPORT
void crypto_core_ristretto255_scalar_sub(unsigned char *z,
const unsigned char *x,
const unsigned char *y)
__attribute__ ((nonnull));
SODIUM_EXPORT
void crypto_core_ristretto255_scalar_mul(unsigned char *z,
const unsigned char *x,
const unsigned char *y)
__attribute__ ((nonnull));
/*
* The interval `s` is sampled from should be at least 317 bits to ensure almost
* uniformity of `r` over `L`.
*/
SODIUM_EXPORT
void crypto_core_ristretto255_scalar_reduce(unsigned char *r,
const unsigned char *s)
__attribute__ ((nonnull));
#ifdef __cplusplus
}
#endif
#endif