mirror of
https://github.com/monero-project/monero.git
synced 2026-07-28 14:47:15 -07:00
j-bermanandJeffro
4f2a8a4270
https://iacr.org/archive/pkc2004/29470042/29470042.pdf 2.2 Also includes: - fe_equals function - breaks out fe_from_bytes_vartime function Co-authored-by: Jeffro <jeffro256@tutanota.com>
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
// Copyright (c) 2025, The Monero Project
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
// of conditions and the following disclaimer in the documentation and/or other
|
|
// materials provided with the distribution.
|
|
//
|
|
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
|
// used to endorse or promote products derived from this software without specific
|
|
// prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
|
|
#include "crypto/crypto.h"
|
|
|
|
template<bool batched>
|
|
class test_fe_batch_invert
|
|
{
|
|
public:
|
|
static const size_t loop_count = 50;
|
|
static const size_t n_elems = 1000;
|
|
|
|
bool init()
|
|
{
|
|
m_fes = std::make_unique<fe[]>(n_elems);
|
|
|
|
for (std::size_t i = 0; i < n_elems; ++i)
|
|
{
|
|
crypto::secret_key r;
|
|
crypto::random32_unbiased((unsigned char*)r.data);
|
|
|
|
ge_p3 point;
|
|
ge_scalarmult_base(&point, (unsigned char*)r.data);
|
|
|
|
memcpy(m_fes[i], &point.Y, sizeof(fe));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool test()
|
|
{
|
|
std::unique_ptr<fe[]> inv_fes = std::make_unique<fe[]>(n_elems);
|
|
|
|
if constexpr (batched)
|
|
fe_batch_invert(inv_fes.get(), m_fes.get(), n_elems);
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < n_elems; ++i)
|
|
fe_invert(inv_fes[i], m_fes[i]);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
std::unique_ptr<fe[]> m_fes;
|
|
};
|