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Filename : crypto_sign.h
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#ifndef crypto_sign_H
#define crypto_sign_H

/*
 * THREAD SAFETY: crypto_sign_keypair() is thread-safe,
 * provided that sodium_init() was called before.
 *
 * Other functions, including crypto_sign_seed_keypair() are always thread-safe.
 */

#include <stddef.h>

#include "crypto_sign_ed25519.h"
#include "export.h"

#ifdef __cplusplus
# ifdef __GNUC__
#  pragma GCC diagnostic ignored "-Wlong-long"
# endif
extern "C" {
#endif

typedef crypto_sign_ed25519ph_state crypto_sign_state;

SODIUM_EXPORT
size_t  crypto_sign_statebytes(void);

#define crypto_sign_BYTES crypto_sign_ed25519_BYTES
SODIUM_EXPORT
size_t  crypto_sign_bytes(void);

#define crypto_sign_SEEDBYTES crypto_sign_ed25519_SEEDBYTES
SODIUM_EXPORT
size_t  crypto_sign_seedbytes(void);

#define crypto_sign_PUBLICKEYBYTES crypto_sign_ed25519_PUBLICKEYBYTES
SODIUM_EXPORT
size_t  crypto_sign_publickeybytes(void);

#define crypto_sign_SECRETKEYBYTES crypto_sign_ed25519_SECRETKEYBYTES
SODIUM_EXPORT
size_t  crypto_sign_secretkeybytes(void);

#define crypto_sign_MESSAGEBYTES_MAX crypto_sign_ed25519_MESSAGEBYTES_MAX
SODIUM_EXPORT
size_t  crypto_sign_messagebytes_max(void);

#define crypto_sign_PRIMITIVE "ed25519"
SODIUM_EXPORT
const char *crypto_sign_primitive(void);

SODIUM_EXPORT
int crypto_sign_seed_keypair(unsigned char *pk, unsigned char *sk,
                             const unsigned char *seed)
            __attribute__ ((nonnull));

SODIUM_EXPORT
int crypto_sign_keypair(unsigned char *pk, unsigned char *sk)
            __attribute__ ((nonnull));

SODIUM_EXPORT
int crypto_sign(unsigned char *sm, unsigned long long *smlen_p,
                const unsigned char *m, unsigned long long mlen,
                const unsigned char *sk) __attribute__ ((nonnull(1, 5)));

SODIUM_EXPORT
int crypto_sign_open(unsigned char *m, unsigned long long *mlen_p,
                     const unsigned char *sm, unsigned long long smlen,
                     const unsigned char *pk)
            __attribute__ ((warn_unused_result)) __attribute__ ((nonnull(3, 5)));

SODIUM_EXPORT
int crypto_sign_detached(unsigned char *sig, unsigned long long *siglen_p,
                         const unsigned char *m, unsigned long long mlen,
                         const unsigned char *sk) __attribute__ ((nonnull(1, 5)));

SODIUM_EXPORT
int crypto_sign_verify_detached(const unsigned char *sig,
                                const unsigned char *m,
                                unsigned long long mlen,
                                const unsigned char *pk)
            __attribute__ ((warn_unused_result)) __attribute__ ((nonnull(1, 4)));

SODIUM_EXPORT
int crypto_sign_init(crypto_sign_state *state);

SODIUM_EXPORT
int crypto_sign_update(crypto_sign_state *state,
                       const unsigned char *m, unsigned long long mlen)
            __attribute__ ((nonnull(1)));

SODIUM_EXPORT
int crypto_sign_final_create(crypto_sign_state *state, unsigned char *sig,
                             unsigned long long *siglen_p,
                             const unsigned char *sk)
            __attribute__ ((nonnull(1, 2, 4)));

SODIUM_EXPORT
int crypto_sign_final_verify(crypto_sign_state *state, const unsigned char *sig,
                             const unsigned char *pk)
            __attribute__ ((warn_unused_result)) __attribute__ ((nonnull));

#ifdef __cplusplus
}
#endif

#endif