jeffro256
103 lines
4.8 KiB
C++
103 lines
4.8 KiB
C++
// Copyright (c) 2024, 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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//paired header
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#include "account_secrets.h"
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//local headers
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#include "config.h"
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#include "crypto/generators.h"
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#include "hash_functions.h"
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#include "ringct/rctOps.h"
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#include "transcript_fixed.h"
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//third party headers
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//standard headers
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#undef MONERO_DEFAULT_LOG_CATEGORY
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#define MONERO_DEFAULT_LOG_CATEGORY "carrot"
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namespace carrot
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{
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//-------------------------------------------------------------------------------------------------------------------
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void make_carrot_provespend_key(const crypto::secret_key &s_master,
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crypto::secret_key &k_prove_spend_out)
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{
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// k_ps = H_n(s_m)
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const auto transcript = sp::make_fixed_transcript<CARROT_DOMAIN_SEP_PROVE_SPEND_KEY>();
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derive_scalar(transcript.data(), transcript.size(), &s_master, to_bytes(k_prove_spend_out));
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}
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//-------------------------------------------------------------------------------------------------------------------
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void make_carrot_viewbalance_secret(const crypto::secret_key &s_master,
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crypto::secret_key &s_view_balance_out)
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{
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// s_vb = H_32(s_m)
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const auto transcript = sp::make_fixed_transcript<CARROT_DOMAIN_SEP_VIEW_BALANCE_SECRET>();
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derive_bytes_32(transcript.data(), transcript.size(), &s_master, to_bytes(s_view_balance_out));
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}
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//-------------------------------------------------------------------------------------------------------------------
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void make_carrot_generateimage_key(const crypto::secret_key &s_view_balance,
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crypto::secret_key &k_generate_image_out)
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{
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// k_gi = H_n(s_vb)
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const auto transcript = sp::make_fixed_transcript<CARROT_DOMAIN_SEP_GENERATE_IMAGE_KEY>();
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derive_scalar(transcript.data(), transcript.size(), &s_view_balance, to_bytes(k_generate_image_out));
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}
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//-------------------------------------------------------------------------------------------------------------------
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void make_carrot_viewincoming_key(const crypto::secret_key &s_view_balance,
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crypto::secret_key &k_view_out)
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{
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// k_v = H_n(s_vb)
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const auto transcript = sp::make_fixed_transcript<CARROT_DOMAIN_SEP_INCOMING_VIEW_KEY>();
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derive_scalar(transcript.data(), transcript.size(), &s_view_balance, to_bytes(k_view_out));
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}
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//-------------------------------------------------------------------------------------------------------------------
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void make_carrot_generateaddress_secret(const crypto::secret_key &s_view_balance,
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crypto::secret_key &s_generate_address_out)
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{
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// s_ga = H_32(s_vb)
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const auto transcript = sp::make_fixed_transcript<CARROT_DOMAIN_SEP_GENERATE_ADDRESS_SECRET>();
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derive_bytes_32(transcript.data(), transcript.size(), &s_view_balance, to_bytes(s_generate_address_out));
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}
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//-------------------------------------------------------------------------------------------------------------------
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void make_carrot_spend_pubkey(const crypto::secret_key &k_generate_image,
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const crypto::secret_key &k_prove_spend,
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crypto::public_key &spend_pubkey_out)
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{
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// k_ps T
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rct::key tmp;
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rct::scalarmultKey(tmp, rct::pk2rct(crypto::get_T()), rct::sk2rct(k_prove_spend));
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// K_s = k_gi G + k_ps T
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rct::addKeys1(tmp, rct::sk2rct(k_generate_image), tmp);
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spend_pubkey_out = rct::rct2pk(tmp);
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}
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//-------------------------------------------------------------------------------------------------------------------
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} //namespace carrot
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