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 15 #ifndef OPENSSL_HEADER_SIPHASH_H 16 #define OPENSSL_HEADER_SIPHASH_H 17 18 #include <openssl/base.h> 19 20 #if defined(__cplusplus) 21 extern "C" { 22 #endif 23 24 25 // SipHash is a fast, secure PRF that is often used for hash tables. 26 27 28 // SIPHASH_24 implements SipHash-2-4. See https://131002.net/siphash/siphash.pdf 29 OPENSSL_EXPORT uint64_t SIPHASH_24(const uint64_t key[2], const uint8_t *input, 30 size_t input_len); 31 32 33 #if defined(__cplusplus) 34 } // extern C 35 #endif 36 37 #endif // OPENSSL_HEADER_SIPHASH_H 38