/*
* Copyright ( c ) 2012 , 2022 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
#ifndef SHARE_CLASSFILE_ALTHASHING_HPP
#define SHARE_CLASSFILE_ALTHASHING_HPP
#include "jni.h"
#include "memory/allStatic.hpp"
#include "utilities/globalDefinitions.hpp"
/**
* Implementation of alternate more secure hashing .
*/
class AltHashing : AllStatic {
friend class AltHashingTest;
// For the seed computation
static uint64_t halfsiphash_64(const uint32_t* data, int len);
static uint64_t halfsiphash_64(uint64_t seed, const uint32_t* data, int len);
public :
static uint64_t compute_seed();
// For Symbols
static uint32_t halfsiphash_32(uint64_t seed, const void * in, int len);
// For Strings
static uint32_t halfsiphash_32(uint64_t seed, const uint16_t* data, int len);
};
#endif // SHARE_CLASSFILE_ALTHASHING_HPP
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