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      1 #ifndef crypto_box_curve25519xsalsa20poly1305_H
      2 #define crypto_box_curve25519xsalsa20poly1305_H
      3 
      4 #include <stddef.h>
      5 #include "crypto_stream_xsalsa20.h"
      6 #include "export.h"
      7 
      8 #ifdef __cplusplus
      9 # ifdef __GNUC__
     10 #  pragma GCC diagnostic ignored "-Wlong-long"
     11 # endif
     12 extern "C" {
     13 #endif
     14 
     15 #define crypto_box_curve25519xsalsa20poly1305_SEEDBYTES 32U
     16 SODIUM_EXPORT
     17 size_t crypto_box_curve25519xsalsa20poly1305_seedbytes(void);
     18 
     19 #define crypto_box_curve25519xsalsa20poly1305_PUBLICKEYBYTES 32U
     20 SODIUM_EXPORT
     21 size_t crypto_box_curve25519xsalsa20poly1305_publickeybytes(void);
     22 
     23 #define crypto_box_curve25519xsalsa20poly1305_SECRETKEYBYTES 32U
     24 SODIUM_EXPORT
     25 size_t crypto_box_curve25519xsalsa20poly1305_secretkeybytes(void);
     26 
     27 #define crypto_box_curve25519xsalsa20poly1305_BEFORENMBYTES 32U
     28 SODIUM_EXPORT
     29 size_t crypto_box_curve25519xsalsa20poly1305_beforenmbytes(void);
     30 
     31 #define crypto_box_curve25519xsalsa20poly1305_NONCEBYTES 24U
     32 SODIUM_EXPORT
     33 size_t crypto_box_curve25519xsalsa20poly1305_noncebytes(void);
     34 
     35 #define crypto_box_curve25519xsalsa20poly1305_MACBYTES 16U
     36 SODIUM_EXPORT
     37 size_t crypto_box_curve25519xsalsa20poly1305_macbytes(void);
     38 
     39 /* Only for the libsodium API - The NaCl compatibility API would require BOXZEROBYTES extra bytes */
     40 #define crypto_box_curve25519xsalsa20poly1305_MESSAGEBYTES_MAX \
     41     (crypto_stream_xsalsa20_MESSAGEBYTES_MAX - crypto_box_curve25519xsalsa20poly1305_MACBYTES)
     42 SODIUM_EXPORT
     43 size_t crypto_box_curve25519xsalsa20poly1305_messagebytes_max(void);
     44 
     45 SODIUM_EXPORT
     46 int crypto_box_curve25519xsalsa20poly1305_seed_keypair(unsigned char *pk,
     47                                                        unsigned char *sk,
     48                                                        const unsigned char *seed);
     49 
     50 SODIUM_EXPORT
     51 int crypto_box_curve25519xsalsa20poly1305_keypair(unsigned char *pk,
     52                                                   unsigned char *sk);
     53 
     54 SODIUM_EXPORT
     55 int crypto_box_curve25519xsalsa20poly1305_beforenm(unsigned char *k,
     56                                                    const unsigned char *pk,
     57                                                    const unsigned char *sk)
     58             __attribute__ ((warn_unused_result));
     59 
     60 /* -- NaCl compatibility interface ; Requires padding -- */
     61 
     62 #define crypto_box_curve25519xsalsa20poly1305_BOXZEROBYTES 16U
     63 SODIUM_EXPORT
     64 size_t crypto_box_curve25519xsalsa20poly1305_boxzerobytes(void);
     65 
     66 #define crypto_box_curve25519xsalsa20poly1305_ZEROBYTES \
     67     (crypto_box_curve25519xsalsa20poly1305_BOXZEROBYTES + \
     68      crypto_box_curve25519xsalsa20poly1305_MACBYTES)
     69 SODIUM_EXPORT
     70 size_t crypto_box_curve25519xsalsa20poly1305_zerobytes(void);
     71 
     72 SODIUM_EXPORT
     73 int crypto_box_curve25519xsalsa20poly1305(unsigned char *c,
     74                                           const unsigned char *m,
     75                                           unsigned long long mlen,
     76                                           const unsigned char *n,
     77                                           const unsigned char *pk,
     78                                           const unsigned char *sk)
     79             __attribute__ ((warn_unused_result));
     80 
     81 SODIUM_EXPORT
     82 int crypto_box_curve25519xsalsa20poly1305_open(unsigned char *m,
     83                                                const unsigned char *c,
     84                                                unsigned long long clen,
     85                                                const unsigned char *n,
     86                                                const unsigned char *pk,
     87                                                const unsigned char *sk)
     88             __attribute__ ((warn_unused_result));
     89 
     90 SODIUM_EXPORT
     91 int crypto_box_curve25519xsalsa20poly1305_afternm(unsigned char *c,
     92                                                   const unsigned char *m,
     93                                                   unsigned long long mlen,
     94                                                   const unsigned char *n,
     95                                                   const unsigned char *k);
     96 
     97 SODIUM_EXPORT
     98 int crypto_box_curve25519xsalsa20poly1305_open_afternm(unsigned char *m,
     99                                                        const unsigned char *c,
    100                                                        unsigned long long clen,
    101                                                        const unsigned char *n,
    102                                                        const unsigned char *k)
    103             __attribute__ ((warn_unused_result));
    104 
    105 #ifdef __cplusplus
    106 }
    107 #endif
    108 
    109 #endif
    110