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      1 #ifndef crypto_core_hchacha20_H
      2 #define crypto_core_hchacha20_H
      3 
      4 #include <stddef.h>
      5 #include "export.h"
      6 
      7 #ifdef __cplusplus
      8 extern "C" {
      9 #endif
     10 
     11 #define crypto_core_hchacha20_OUTPUTBYTES 32U
     12 SODIUM_EXPORT
     13 size_t crypto_core_hchacha20_outputbytes(void);
     14 
     15 #define crypto_core_hchacha20_INPUTBYTES 16U
     16 SODIUM_EXPORT
     17 size_t crypto_core_hchacha20_inputbytes(void);
     18 
     19 #define crypto_core_hchacha20_KEYBYTES 32U
     20 SODIUM_EXPORT
     21 size_t crypto_core_hchacha20_keybytes(void);
     22 
     23 #define crypto_core_hchacha20_CONSTBYTES 16U
     24 SODIUM_EXPORT
     25 size_t crypto_core_hchacha20_constbytes(void);
     26 
     27 SODIUM_EXPORT
     28 int crypto_core_hchacha20(unsigned char *out, const unsigned char *in,
     29                           const unsigned char *k, const unsigned char *c);
     30 
     31 #ifdef __cplusplus
     32 }
     33 #endif
     34 
     35 #endif
     36