include/qemu/crc32c.h

   1 /*
   2  *  Castagnoli CRC32C Checksum Algorithm
   3  *
   4  *  Polynomial: 0x11EDC6F41
   5  *
   6  *  Castagnoli93: Guy Castagnoli and Stefan Braeuer and Martin Herrman
   7  *               "Optimization of Cyclic Redundancy-Check Codes with 24
   8  *                 and 32 Parity Bits",IEEE Transactions on Communication,
   9  *                Volume 41, Number 6, June 1993
  10  *
  11  *  Copyright (c) 2013 Red Hat, Inc.,
  12  *
  13  *  Authors:
  14  *   Jeff Cody <jcody@redhat.com>
  15  *
  16  *  Based on the Linux kernel cryptographic crc32c module,
  17  *
  18  *  Copyright (c) 2004 Cisco Systems, Inc.
  19  *  Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
  20  *
  21  * This program is free software; you can redistribute it and/or modify it
  22  * under the terms of the GNU General Public License as published by the Free
  23  * Software Foundation; either version 2 of the License, or (at your option)
  24  * any later version.
  25  *
  26  */
  27
  28 #ifndef QEMU_CRC32C_H
  29 #define QEMU_CRC32C_H
  30
  31
  32 uint32_t crc32c(uint32_t crc, const uint8_t *data, unsigned int length);
  33
  34 #endif