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https://git.wownero.com/wownero/RandomWOW.git
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89aba80925
* Blake2Generator::getInt32 renamed to getUInt32 to avoid confusion * isPowerOf2 renamed to isZeroOrPowerOf2 to avoid confusion * added asserts to validate the input/output size of AES functions * fixed possible overflow in JitCompilerX86::getCodeSize (unused function)
62 lines
No EOL
2.3 KiB
C++
62 lines
No EOL
2.3 KiB
C++
/*
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Copyright (c) 2018-2019, tevador <tevador@gmail.com>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stddef.h>
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#include "blake2/blake2.h"
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#include "blake2/endian.h"
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#include "blake2_generator.hpp"
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namespace randomx {
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constexpr int maxSeedSize = 60;
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Blake2Generator::Blake2Generator(const void* seed, size_t seedSize, int nonce) : dataIndex(sizeof(data)) {
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memset(data, 0, sizeof(data));
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memcpy(data, seed, seedSize > maxSeedSize ? maxSeedSize : seedSize);
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store32(&data[maxSeedSize], nonce);
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}
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uint8_t Blake2Generator::getByte() {
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checkData(1);
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return data[dataIndex++];
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}
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uint32_t Blake2Generator::getUInt32() {
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checkData(4);
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auto ret = load32(&data[dataIndex]);
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dataIndex += 4;
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return ret;
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}
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void Blake2Generator::checkData(const size_t bytesNeeded) {
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if (dataIndex + bytesNeeded > sizeof(data)) {
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blake2b(data, sizeof(data), data, sizeof(data), nullptr, 0);
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dataIndex = 0;
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}
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}
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} |