libsodium (1.0.19)

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       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