release/src/router/tinc/src/chacha-poly1305/chacha.h

   1 /*
   2 chacha-merged.c version 20080118
   3 D. J. Bernstein
   4 Public domain.
   5 */
   6
   7 #ifndef CHACHA_H
   8 #define CHACHA_H
   9
  10 struct chacha_ctx {
  11         uint32_t input[16];
  12 };
  13
  14 #define CHACHA_MINKEYLEN        16
  15 #define CHACHA_NONCELEN         8
  16 #define CHACHA_CTRLEN           8
  17 #define CHACHA_STATELEN         (CHACHA_NONCELEN+CHACHA_CTRLEN)
  18 #define CHACHA_BLOCKLEN         64
  19
  20 void chacha_keysetup(struct chacha_ctx *x, const uint8_t *k, uint32_t kbits);
  21 void chacha_ivsetup(struct chacha_ctx *x, const uint8_t *iv, const uint8_t *ctr);
  22 void chacha_encrypt_bytes(struct chacha_ctx *x, const uint8_t *m, uint8_t * c, uint32_t bytes);
  23
  24 #endif /* CHACHA_H */