SipHash.hpp

/*
	Copyright (c) 2013 Christopher A. Taylor.  All rights reserved.

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*/

#ifndef CAT_SIPHASH_HPP
#define CAT_SIPHASH_HPP

#include "Platform.hpp"

/*
 * Portable C++ implementation of SipHash-2-4
 *
 * The algorithm was developed and analyzed by Bernstein and Aumasson in 2012:
 * https://131002.net/siphash/siphash.pdf
 *
 * Based on the reference C version:
 * https://131002.net/siphash/siphash24.c
 *
 * Additional data (AD) is incorporated into the stock SipHash algorithm by
 * XORing it into the key before use.
 */

namespace cat {


// AD: Additional Data, can be null if not needed
u64 siphash24(const char key[16], const void *msg, const u64 msg_len,
			  const u64 nonce, const void *ad = 0, const u64 ad_len = 0);


} // namespace cat

#endif // CAT_SIPHASH_HPP