text: // Copyright (c) 2019 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #ifndef BITCOINRELOAD_CRYPTO_POLY1305_H
  #define BITCOINRELOAD_CRYPTO_POLY1305_H
  
  #include <stdint.h>
  #include <stdlib.h>
  
  #define POLY1305_KEYLEN 32
  #define POLY1305_TAGLEN 16
  
  void poly1305_auth(unsigned char out[POLY1305_TAGLEN], const unsigned char *m, size_t inlen,
      const unsigned char key[POLY1305_KEYLEN]);
  
  #endif // BITCOINRELOAD_CRYPTO_POLY1305_H
  