mirror of
https://github.com/taigrr/arduinolibs
synced 2025-01-18 04:33:12 -08:00
138 lines
3.2 KiB
C++
138 lines
3.2 KiB
C++
/*
|
|
* Copyright (C) 2016 Southern Storm Software, Pty Ltd.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "SHAKE.h"
|
|
|
|
/**
|
|
* \class SHAKE SHAKE.h <SHAKE.h>
|
|
* \brief Abstract base class for the SHAKE Extendable-Output Functions (XOFs).
|
|
*
|
|
* Reference: http://en.wikipedia.org/wiki/SHA-3
|
|
*
|
|
* \sa SHAKE256, SHAKE128, SHA3_256
|
|
*/
|
|
|
|
/**
|
|
* \brief Constructs a SHAKE object.
|
|
*
|
|
* \param capacity The capacity of the Keccak sponge function in bits which
|
|
* should be a multiple of 64 and between 64 and 1536.
|
|
*/
|
|
SHAKE::SHAKE(size_t capacity)
|
|
: finalized(false)
|
|
{
|
|
core.setCapacity(capacity);
|
|
}
|
|
|
|
/**
|
|
* \brief Destroys this SHAKE object after clearing all sensitive information.
|
|
*/
|
|
SHAKE::~SHAKE()
|
|
{
|
|
}
|
|
|
|
size_t SHAKE::blockSize() const
|
|
{
|
|
return core.blockSize();
|
|
}
|
|
|
|
void SHAKE::reset()
|
|
{
|
|
core.reset();
|
|
finalized = false;
|
|
}
|
|
|
|
void SHAKE::update(const void *data, size_t len)
|
|
{
|
|
if (finalized)
|
|
reset();
|
|
core.update(data, len);
|
|
}
|
|
|
|
void SHAKE::extend(uint8_t *data, size_t len)
|
|
{
|
|
if (!finalized) {
|
|
core.pad(0x1F);
|
|
finalized = true;
|
|
}
|
|
core.extract(data, len);
|
|
}
|
|
|
|
void SHAKE::encrypt(uint8_t *output, const uint8_t *input, size_t len)
|
|
{
|
|
if (!finalized) {
|
|
core.pad(0x1F);
|
|
finalized = true;
|
|
}
|
|
core.encrypt(output, input, len);
|
|
}
|
|
|
|
void SHAKE::clear()
|
|
{
|
|
core.clear();
|
|
finalized = false;
|
|
}
|
|
|
|
/**
|
|
* \class SHAKE128 SHAKE.h <SHAKE.h>
|
|
* \brief SHAKE Extendable-Output Function (XOF) with 128-bit security.
|
|
*
|
|
* Reference: http://en.wikipedia.org/wiki/SHA-3
|
|
*
|
|
* \sa SHAKE256, SHAKE, SHA3_256
|
|
*/
|
|
|
|
/**
|
|
* \fn SHAKE128::SHAKE128()
|
|
* \brief Constructs a SHAKE object with 128-bit security.
|
|
*/
|
|
|
|
/**
|
|
* \brief Destroys this SHAKE128 object after clearing all sensitive
|
|
* information.
|
|
*/
|
|
SHAKE128::~SHAKE128()
|
|
{
|
|
}
|
|
|
|
/**
|
|
* \class SHAKE256 SHAKE.h <SHAKE.h>
|
|
* \brief SHAKE Extendable-Output Function (XOF) with 256-bit security.
|
|
*
|
|
* Reference: http://en.wikipedia.org/wiki/SHA-3
|
|
*
|
|
* \sa SHAKE128, SHAKE, SHA3_256
|
|
*/
|
|
|
|
/**
|
|
* \fn SHAKE256::SHAKE256()
|
|
* \brief Constructs a SHAKE object with 256-bit security.
|
|
*/
|
|
|
|
/**
|
|
* \brief Destroys this SHAKE256 object after clearing all sensitive
|
|
* information.
|
|
*/
|
|
SHAKE256::~SHAKE256()
|
|
{
|
|
}
|