siphash.h 1.3 KB

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  1. /* Copyright (c) 2019, Google Inc.
  2. *
  3. * Permission to use, copy, modify, and/or distribute this software for any
  4. * purpose with or without fee is hereby granted, provided that the above
  5. * copyright notice and this permission notice appear in all copies.
  6. *
  7. * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  8. * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  9. * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  10. * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11. * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  12. * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  13. * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
  14. #ifndef OPENSSL_HEADER_SIPHASH_H
  15. #define OPENSSL_HEADER_SIPHASH_H
  16. #include <openssl/base.h>
  17. #if defined(__cplusplus)
  18. extern "C" {
  19. #endif
  20. // SipHash is a fast, secure PRF that is often used for hash tables.
  21. // SIPHASH_24 implements SipHash-2-4. See https://131002.net/siphash/siphash.pdf
  22. OPENSSL_EXPORT uint64_t SIPHASH_24(const uint64_t key[2], const uint8_t *input,
  23. size_t input_len);
  24. #if defined(__cplusplus)
  25. } // extern C
  26. #endif
  27. #endif // OPENSSL_HEADER_SIPHASH_H