/usr/include/sodium/crypto_scalarmult.h is in libsodium-dev 1.0.16-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | #ifndef crypto_scalarmult_H
#define crypto_scalarmult_H
#include <stddef.h>
#include "crypto_scalarmult_curve25519.h"
#include "export.h"
#ifdef __cplusplus
extern "C" {
#endif
#define crypto_scalarmult_BYTES crypto_scalarmult_curve25519_BYTES
SODIUM_EXPORT
size_t crypto_scalarmult_bytes(void);
#define crypto_scalarmult_SCALARBYTES crypto_scalarmult_curve25519_SCALARBYTES
SODIUM_EXPORT
size_t crypto_scalarmult_scalarbytes(void);
#define crypto_scalarmult_PRIMITIVE "curve25519"
SODIUM_EXPORT
const char *crypto_scalarmult_primitive(void);
SODIUM_EXPORT
int crypto_scalarmult_base(unsigned char *q, const unsigned char *n);
/*
* NOTE: Do not use the result of this function directly.
*
* Hash the result with the public keys in order to compute a shared
* secret key: H(q || client_pk || server_pk)
*
* Or unless this is not an option, use the crypto_kx() API instead.
*/
SODIUM_EXPORT
int crypto_scalarmult(unsigned char *q, const unsigned char *n,
const unsigned char *p)
__attribute__ ((warn_unused_result));
#ifdef __cplusplus
}
#endif
#endif
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