text: #ifndef crypto_box_H
  #define crypto_box_H
  
  /*
   * THREAD SAFETY: crypto_box_keypair() is thread-safe,
   * provided that you called sodium_init() once before using any
   * other libsodium function.
   * Other functions are always thread-safe.
   */
  
  #include <stddef.h>
  
  #include "crypto_box_curve25519xsalsa20poly1305.h"
  #include "export.h"
  
  #ifdef __cplusplus
  # if __GNUC__
  #  pragma GCC diagnostic ignored "-Wlong-long"
  # endif
  extern "C" {
  #endif
  
  #define crypto_box_SEEDBYTES crypto_box_curve25519xsalsa20poly1305_SEEDBYTES
  SODIUM_EXPORT
  size_t  crypto_box_seedbytes(void);
  
  #define crypto_box_PUBLICKEYBYTES crypto_box_curve25519xsalsa20poly1305_PUBLICKEYBYTES
  SODIUM_EXPORT
  size_t  crypto_box_publickeybytes(void);
  
  #define crypto_box_SECRETKEYBYTES crypto_box_curve25519xsalsa20poly1305_SECRETKEYBYTES
  SODIUM_EXPORT
  size_t  crypto_box_secretkeybytes(void);
  
  #define crypto_box_BEFORENMBYTES crypto_box_curve25519xsalsa20poly1305_BEFORENMBYTES
  SODIUM_EXPORT
  size_t  crypto_box_beforenmbytes(void);
  
  #define crypto_box_NONCEBYTES crypto_box_curve25519xsalsa20poly1305_NONCEBYTES
  SODIUM_EXPORT
  size_t  crypto_box_noncebytes(void);
  
  #define crypto_box_ZEROBYTES crypto_box_curve25519xsalsa20poly1305_ZEROBYTES
  SODIUM_EXPORT
  size_t  crypto_box_zerobytes(void);
  
  #define crypto_box_BOXZEROBYTES crypto_box_curve25519xsalsa20poly1305_BOXZEROBYTES
  SODIUM_EXPORT
  size_t  crypto_box_boxzerobytes(void);
  
  #define crypto_box_MACBYTES crypto_box_curve25519xsalsa20poly1305_MACBYTES
  SODIUM_EXPORT
  size_t  crypto_box_macbytes(void);
  
  #define crypto_box_PRIMITIVE "curve25519xsalsa20poly1305"
  SODIUM_EXPORT
  const char *crypto_box_primitive(void);
  
  SODIUM_EXPORT
  int crypto_box_seed_keypair(unsigned char *pk, unsigned char *sk,
                              const unsigned char *seed);
  
  SODIUM_EXPORT
  int crypto_box_keypair(unsigned char *pk, unsigned char *sk);
  
  SODIUM_EXPORT
  int crypto_box_beforenm(unsigned char *k, const unsigned char *pk,
                          const unsigned char *sk);
  
  SODIUM_EXPORT
  int crypto_box_afternm(unsigned char *c, const unsigned char *m,
                         unsigned long long mlen, const unsigned char *n,
                         const unsigned char *k);
  
  SODIUM_EXPORT
  int crypto_box_open_afternm(unsigned char *m, const unsigned char *c,
                              unsigned long long clen, const unsigned char *n,
                              const unsigned char *k);
  
  SODIUM_EXPORT
  int crypto_box(unsigned char *c, const unsigned char *m,
                 unsigned long long mlen, const unsigned char *n,
                 const unsigned char *pk, const unsigned char *sk);
  
  SODIUM_EXPORT
  int crypto_box_open(unsigned char *m, const unsigned char *c,
                      unsigned long long clen, const unsigned char *n,
                      const unsigned char *pk, const unsigned char *sk);
  
  SODIUM_EXPORT
  int crypto_box_easy(unsigned char *c, const unsigned char *m,
                      unsigned long long mlen, const unsigned char *n,
                      const unsigned char *pk, const unsigned char *sk);
  
  SODIUM_EXPORT
  int crypto_box_open_easy(unsigned char *m, const unsigned char *c,
                           unsigned long long clen, const unsigned char *n,
                           const unsigned char *pk, const unsigned char *sk);
  
  SODIUM_EXPORT
  int crypto_box_detached(unsigned char *c, unsigned char *mac,
                          const unsigned char *m, unsigned long long mlen,
                          const unsigned char *n, const unsigned char *pk,
                          const unsigned char *sk);
  
  SODIUM_EXPORT
  int crypto_box_open_detached(unsigned char *m, const unsigned char *c,
                               const unsigned char *mac,
                               unsigned long long clen,
                               const unsigned char *n,
                               const unsigned char *pk,
                               const unsigned char *sk);
  #ifdef __cplusplus
  }
  #endif
  
  #endif
  