mirror of
https://github.com/taigrr/arduinolibs
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138 lines
2.9 KiB
C++
138 lines
2.9 KiB
C++
/*
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* Copyright (C) 2015 Southern Storm Software, Pty Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "SHA3.h"
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/**
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* \class SHA3_256 SHA3.h <SHA3.h>
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* \brief SHA3-256 hash algorithm.
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*
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* Reference: http://en.wikipedia.org/wiki/SHA-3
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*
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* \sa SHA3_512
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*/
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/**
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* \brief Constructs a new SHA3-256 hash object.
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*/
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SHA3_256::SHA3_256()
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{
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core.setCapacity(512);
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}
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/**
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* \brief Destroys this hash object after clearing sensitive information.
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*/
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SHA3_256::~SHA3_256()
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{
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// The destructor for the KeccakCore object will do most of the work.
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}
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size_t SHA3_256::hashSize() const
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{
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return 32;
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}
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size_t SHA3_256::blockSize() const
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{
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return core.blockSize();
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}
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void SHA3_256::reset()
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{
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core.reset();
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}
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void SHA3_256::update(const void *data, size_t len)
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{
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core.update(data, len);
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}
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void SHA3_256::finalize(void *hash, size_t len)
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{
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// Pad the final block and then extract the hash value.
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core.pad(0x06);
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core.extract(hash, len);
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}
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void SHA3_256::clear()
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{
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core.clear();
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}
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/**
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* \class SHA3_512 SHA3.h <SHA3.h>
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* \brief SHA3-512 hash algorithm.
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*
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* Reference: http://en.wikipedia.org/wiki/SHA-3
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*
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* \sa SHA3_256
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*/
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/**
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* \brief Constructs a new SHA3-512 hash object.
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*/
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SHA3_512::SHA3_512()
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{
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core.setCapacity(1024);
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}
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/**
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* \brief Destroys this hash object after clearing sensitive information.
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*/
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SHA3_512::~SHA3_512()
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{
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// The destructor for the KeccakCore object will do most of the work.
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}
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size_t SHA3_512::hashSize() const
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{
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return 64;
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}
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size_t SHA3_512::blockSize() const
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{
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return core.blockSize();
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}
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void SHA3_512::reset()
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{
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core.reset();
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}
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void SHA3_512::update(const void *data, size_t len)
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{
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core.update(data, len);
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}
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void SHA3_512::finalize(void *hash, size_t len)
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{
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// Pad the final block and then extract the hash value.
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core.pad(0x06);
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core.extract(hash, len);
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}
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void SHA3_512::clear()
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{
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core.clear();
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}
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