text: /* Copyright (c) 2014, Google Inc.
   *
   * Permission to use, copy, modify, and/or distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
   * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
   * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
   * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
  
  #include <stdint.h>
  #include <string.h>
  
  void boring_chacha20(uint8_t *out, const uint8_t *in,
  		     size_t in_len, const uint8_t key[32],
  		     const uint8_t nonce[12], uint32_t counter);
  
  typedef uint8_t poly1305_state[512];
  
  void boring_poly1305_init(poly1305_state *state,
  			  const uint8_t key[32]);
  
  void boring_poly1305_update(poly1305_state *state,
  			    const uint8_t *in, size_t in_len);
  
  void boring_poly1305_finish(poly1305_state *state,
  			    uint8_t mac[16]);
  