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add missing files

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j-berman 2024-08-09 16:35:25 -07:00
parent b6bcca9899
commit 7389cb6bee
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66
src/fcmp_pp/fcmp_pp_crypto.cpp Normal file
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// Copyright (c) 2024, 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.
#include "fcmp_pp_crypto.h"
extern "C"
{
#include "crypto/crypto-ops.h"
}
#include "ringct/rctOps.h"
namespace fcmp_pp
{
//----------------------------------------------------------------------------------------------------------------------
bool clear_torsion(const rct::key &k, rct::key &k_out) {
ge_p3 point;
if (ge_frombytes_vartime(&point, k.bytes) != 0)
return false;
// mul by inv 8, then mul by 8
ge_p2 point_inv_8;
ge_scalarmult(&point_inv_8, rct::INV_EIGHT.bytes, &point);
ge_p1p1 point_inv_8_mul_8;
ge_mul8(&point_inv_8_mul_8, &point_inv_8);
ge_p3 torsion_cleared_point;
ge_p1p1_to_p3(&torsion_cleared_point, &point_inv_8_mul_8);
ge_p3_tobytes(k_out.bytes, &torsion_cleared_point);
return true;
}
bool point_to_wei_x(const rct::key &pub, rct::key &wei_x) {
if (pub == rct::I)
return false;
fe y;
if (fe_frombytes_vartime(y, pub.bytes) != 0)
return false;
fe_ed_y_to_wei_x(wei_x.bytes, y);
return true;
}
//----------------------------------------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------------------------------------
}//namespace fcmp_pp

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src/fcmp_pp/fcmp_pp_crypto.h Normal file
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// Copyright (c) 2024, 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.
#pragma once
#include "ringct/rctTypes.h"
namespace fcmp_pp
{
//----------------------------------------------------------------------------------------------------------------------
// TODO: tests for these functions
bool clear_torsion(const rct::key &k, rct::key &k_out);
bool point_to_wei_x(const rct::key &pub, rct::key &wei_x);
//----------------------------------------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------------------------------------
}//namespace fcmp_pp