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