xref: /freebsd/sys/contrib/libsodium/src/libsodium/include/sodium/crypto_kdf_blake2b.h (revision 3611ec604864a7d4dcc9a3ea898c80eb35eef8a0)
1 #ifndef crypto_kdf_blake2b_H
2 #define crypto_kdf_blake2b_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_blake2b_BYTES_MIN 16
18 SODIUM_EXPORT
19 size_t crypto_kdf_blake2b_bytes_min(void);
20 
21 #define crypto_kdf_blake2b_BYTES_MAX 64
22 SODIUM_EXPORT
23 size_t crypto_kdf_blake2b_bytes_max(void);
24 
25 #define crypto_kdf_blake2b_CONTEXTBYTES 8
26 SODIUM_EXPORT
27 size_t crypto_kdf_blake2b_contextbytes(void);
28 
29 #define crypto_kdf_blake2b_KEYBYTES 32
30 SODIUM_EXPORT
31 size_t crypto_kdf_blake2b_keybytes(void);
32 
33 SODIUM_EXPORT
34 int crypto_kdf_blake2b_derive_from_key(unsigned char *subkey, size_t subkey_len,
35                                        uint64_t subkey_id,
36                                        const char ctx[crypto_kdf_blake2b_CONTEXTBYTES],
37                                        const unsigned char key[crypto_kdf_blake2b_KEYBYTES]);
38 #ifdef __cplusplus
39 }
40 #endif
41 
42 #endif
43