libsodium (1.0.19)

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       1  #ifndef crypto_kdf_H
       2  #define crypto_kdf_H
       3  
       4  #include <stddef.h>
       5  #include <stdint.h>
       6  
       7  #include "crypto_kdf_blake2b.h"
       8  #include "export.h"
       9  
      10  #ifdef __cplusplus
      11  # ifdef __GNUC__
      12  #  pragma GCC diagnostic ignored "-Wlong-long"
      13  # endif
      14  extern "C" {
      15  #endif
      16  
      17  #define crypto_kdf_BYTES_MIN crypto_kdf_blake2b_BYTES_MIN
      18  SODIUM_EXPORT
      19  size_t crypto_kdf_bytes_min(void);
      20  
      21  #define crypto_kdf_BYTES_MAX crypto_kdf_blake2b_BYTES_MAX
      22  SODIUM_EXPORT
      23  size_t crypto_kdf_bytes_max(void);
      24  
      25  #define crypto_kdf_CONTEXTBYTES crypto_kdf_blake2b_CONTEXTBYTES
      26  SODIUM_EXPORT
      27  size_t crypto_kdf_contextbytes(void);
      28  
      29  #define crypto_kdf_KEYBYTES crypto_kdf_blake2b_KEYBYTES
      30  SODIUM_EXPORT
      31  size_t crypto_kdf_keybytes(void);
      32  
      33  #define crypto_kdf_PRIMITIVE "blake2b"
      34  SODIUM_EXPORT
      35  const char *crypto_kdf_primitive(void)
      36              __attribute__ ((warn_unused_result));
      37  
      38  SODIUM_EXPORT
      39  int crypto_kdf_derive_from_key(unsigned char *subkey, size_t subkey_len,
      40                                 uint64_t subkey_id,
      41                                 const char ctx[crypto_kdf_CONTEXTBYTES],
      42                                 const unsigned char key[crypto_kdf_KEYBYTES])
      43              __attribute__ ((nonnull));
      44  
      45  SODIUM_EXPORT
      46  void crypto_kdf_keygen(unsigned char k[crypto_kdf_KEYBYTES])
      47              __attribute__ ((nonnull));
      48  
      49  #ifdef __cplusplus
      50  }
      51  #endif
      52  
      53  #endif