crypto_scalarmult.h (1184B)
1 #ifndef crypto_scalarmult_H 2 #define crypto_scalarmult_H 3 4 #include <stddef.h> 5 6 #include "crypto_scalarmult_curve25519.h" 7 #include "export.h" 8 9 #ifdef __cplusplus 10 extern "C" { 11 #endif 12 13 #define crypto_scalarmult_BYTES crypto_scalarmult_curve25519_BYTES 14 SODIUM_EXPORT 15 size_t crypto_scalarmult_bytes(void); 16 17 #define crypto_scalarmult_SCALARBYTES crypto_scalarmult_curve25519_SCALARBYTES 18 SODIUM_EXPORT 19 size_t crypto_scalarmult_scalarbytes(void); 20 21 #define crypto_scalarmult_PRIMITIVE "curve25519" 22 SODIUM_EXPORT 23 const char *crypto_scalarmult_primitive(void); 24 25 SODIUM_EXPORT 26 int crypto_scalarmult_base(unsigned char *q, const unsigned char *n) 27 __attribute__ ((nonnull)); 28 29 /* 30 * NOTE: Do not use the result of this function directly for key exchange. 31 * 32 * Hash the result with the public keys in order to compute a shared 33 * secret key: H(q || client_pk || server_pk) 34 * 35 * Or unless this is not an option, use the crypto_kx() API instead. 36 */ 37 SODIUM_EXPORT 38 int crypto_scalarmult(unsigned char *q, const unsigned char *n, 39 const unsigned char *p) 40 __attribute__ ((warn_unused_result)) __attribute__ ((nonnull)); 41 42 #ifdef __cplusplus 43 } 44 #endif 45 46 #endif