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View File Name : crypto_kdf.h

#ifndef crypto_kdf_H
#define crypto_kdf_H

#include <stddef.h>
#include <stdint.h>

#include "crypto_kdf_blake2b.h"
#include "export.h"

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

#define crypto_kdf_BYTES_MIN crypto_kdf_blake2b_BYTES_MIN
SODIUM_EXPORT
size_t crypto_kdf_bytes_min(void);

#define crypto_kdf_BYTES_MAX crypto_kdf_blake2b_BYTES_MAX
SODIUM_EXPORT
size_t crypto_kdf_bytes_max(void);

#define crypto_kdf_CONTEXTBYTES crypto_kdf_blake2b_CONTEXTBYTES
SODIUM_EXPORT
size_t crypto_kdf_contextbytes(void);

#define crypto_kdf_KEYBYTES crypto_kdf_blake2b_KEYBYTES
SODIUM_EXPORT
size_t crypto_kdf_keybytes(void);

#define crypto_kdf_PRIMITIVE "blake2b"
SODIUM_EXPORT
const char *crypto_kdf_primitive(void)
            __attribute__ ((warn_unused_result));

SODIUM_EXPORT
int crypto_kdf_derive_from_key(unsigned char *subkey, size_t subkey_len,
                               uint64_t subkey_id,
                               const char ctx[crypto_kdf_CONTEXTBYTES],
                               const unsigned char key[crypto_kdf_KEYBYTES])
            __attribute__ ((nonnull));

SODIUM_EXPORT
void crypto_kdf_keygen(unsigned char k[crypto_kdf_KEYBYTES])
            __attribute__ ((nonnull));

#ifdef __cplusplus
}
#endif

#endif