mirror of
https://codeberg.org/wownero/wownero-lws
synced 2026-01-11 08:05:16 -08:00
3427c60315
Adapts monero-lws for Wownero cryptocurrency: - Rename all monero-lws-* binaries to wownero-lws-* - Update submodule to point to official Wownero repo - Use Wownero default ports (RPC: 34568, ZMQ: 34569) - Update data directory to ~/.wownero/light_wallet_server - Adapt next_difficulty() calls for Wownero API signature Key technical changes for Wownero compatibility: - BulletproofPlus (RCTTypeBulletproofPlus, type 8) commitment verification: Wownero stores BP+ commitments in 'divided by 8' form. Must call rct::scalarmult8() on outPk commitment before comparing with computed commitment (mask*G + amount*H). This is essential for amount decryption. - Pass rct_type to decode_amount() for proper commitment handling - Handle Wownero's ZMQ JSON format for ecdhTuple (32-byte mask/amount fields) No fork of Wownero is required - uses official codeberg.org/wownero/wownero.
69 lines
2.8 KiB
C++
69 lines
2.8 KiB
C++
// Copyright (c) 2020, The Monero Project
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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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#include "transactions.h"
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#include "cryptonote_config.h"
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#include "crypto/crypto.h"
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#include "crypto/hash.h"
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#include "ringct/rctOps.h"
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void lws::decrypt_payment_id(crypto::hash8& out, const crypto::key_derivation& key)
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{
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crypto::hash hash;
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char data[33]; /* A hash, and an extra byte */
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memcpy(data, &key, 32);
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data[32] = config::HASH_KEY_ENCRYPTED_PAYMENT_ID;
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cn_fast_hash(data, 33, hash);
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for (size_t b = 0; b < 8; ++b)
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out.data[b] ^= hash.data[b];
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}
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boost::optional<std::pair<std::uint64_t, rct::key>> lws::decode_amount(const rct::key& commitment, const rct::ecdhTuple& info, const crypto::key_derivation& sk, std::size_t index, const bool bulletproof2, const std::uint8_t rct_type)
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{
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crypto::secret_key scalar{};
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crypto::derivation_to_scalar(sk, index, scalar);
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rct::ecdhTuple copy{info};
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rct::ecdhDecode(copy, rct::sk2rct(scalar), bulletproof2);
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rct::key Ctmp;
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rct::addKeys2(Ctmp, copy.mask, copy.amount, rct::H);
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// Wownero BulletproofPlus: commitments are stored in "divided by 8" form
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// Must multiply by 8 (scalarmult8) before comparing
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rct::key C = commitment;
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if (rct_type == rct::RCTTypeBulletproofPlus)
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C = rct::scalarmult8(C);
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if (rct::equalKeys(C, Ctmp))
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return {{rct::h2d(copy.amount), copy.mask}};
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return boost::none;
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}
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