1 2 #ifndef stream_chacha20_H 3 #define stream_chacha20_H 4 5 #include <stdint.h> 6 7 typedef struct crypto_stream_chacha20_implementation { 8 int (*stream)(unsigned char *c, unsigned long long clen, 9 const unsigned char *n, const unsigned char *k); 10 int (*stream_ietf)(unsigned char *c, unsigned long long clen, 11 const unsigned char *n, const unsigned char *k); 12 int (*stream_xor_ic)(unsigned char *c, const unsigned char *m, 13 unsigned long long mlen, 14 const unsigned char *n, uint64_t ic, 15 const unsigned char *k); 16 int (*stream_ietf_xor_ic)(unsigned char *c, const unsigned char *m, 17 unsigned long long mlen, 18 const unsigned char *n, uint32_t ic, 19 const unsigned char *k); 20 } crypto_stream_chacha20_implementation; 21 22 #endif 23