api.h
#include <stddef.h>
#define CRYPTO_SECRETKEYBYTES 57344
#define CRYPTO_PUBLICKEYBYTES 897
#define CRYPTO_BYTES 690
#define CRYPTO_ALGNAME "Falcon-512-tree"
int crypto_sign_keypair(unsigned char *pk, unsigned char *sk);
int crypto_sign(unsigned char *sm, size_t *smlen,
const unsigned char *m, size_t mlen,
const unsigned char *sk);
int crypto_sign_open(unsigned char *m, size_t *mlen,
const unsigned char *sm, size_t smlen,
const unsigned char *pk);