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monero/src/cryptonote_basic/cryptonote_boost_serialization.h
j-berman ea87b30f89 Add view tags to outputs to reduce wallet scanning time 
Implements view tags as proposed by @UkoeHB in MRL issue
https://github.com/monero-project/research-lab/issues/73

At tx construction, the sender adds a 1-byte view tag to each
output. The view tag is derived from the sender-receiver
shared secret. When scanning for outputs, the receiver can
check the view tag for a match, in order to reduce scanning
time. When the view tag does not match, the wallet avoids the
more expensive EC operations when deriving the output public
key using the shared secret.
2022-04-18 00:49:53 -07:00

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// Copyright (c) 2014-2022, 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 <boost/serialization/vector.hpp>
#include <boost/serialization/utility.hpp>
#include <boost/serialization/variant.hpp>
#include <boost/serialization/set.hpp>
#include <boost/serialization/map.hpp>
#include <boost/serialization/is_bitwise_serializable.hpp>
#include <boost/archive/portable_binary_iarchive.hpp>
#include <boost/archive/portable_binary_oarchive.hpp>
#include "cryptonote_basic.h"
#include "difficulty.h"
#include "common/unordered_containers_boost_serialization.h"
#include "crypto/crypto.h"
#include "ringct/rctTypes.h"
#include "ringct/rctOps.h"
namespace boost
{
namespace serialization
{
//---------------------------------------------------
template <class Archive>
inline void serialize(Archive &a, crypto::public_key &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::public_key)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, crypto::secret_key &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::secret_key)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, crypto::key_derivation &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::key_derivation)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, crypto::key_image &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::key_image)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, crypto::view_tag &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::view_tag)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, crypto::signature &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::signature)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, crypto::hash &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::hash)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, crypto::hash8 &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(crypto::hash8)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txout_to_script &x, const boost::serialization::version_type ver)
{
a & x.keys;
a & x.script;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txout_to_key &x, const boost::serialization::version_type ver)
{
a & x.key;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txout_to_tagged_key &x, const boost::serialization::version_type ver)
{
a & x.key;
a & x.view_tag;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txout_to_scripthash &x, const boost::serialization::version_type ver)
{
a & x.hash;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txin_gen &x, const boost::serialization::version_type ver)
{
a & x.height;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txin_to_script &x, const boost::serialization::version_type ver)
{
a & x.prev;
a & x.prevout;
a & x.sigset;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txin_to_scripthash &x, const boost::serialization::version_type ver)
{
a & x.prev;
a & x.prevout;
a & x.script;
a & x.sigset;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::txin_to_key &x, const boost::serialization::version_type ver)
{
a & x.amount;
a & x.key_offsets;
a & x.k_image;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::tx_out &x, const boost::serialization::version_type ver)
{
a & x.amount;
a & x.target;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::transaction_prefix &x, const boost::serialization::version_type ver)
{
a & x.version;
a & x.unlock_time;
a & x.vin;
a & x.vout;
a & x.extra;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::transaction &x, const boost::serialization::version_type ver)
{
a & x.version;
a & x.unlock_time;
a & x.vin;
a & x.vout;
a & x.extra;
if (x.version == 1)
{
a & x.signatures;
}
else
{
a & (rct::rctSigBase&)x.rct_signatures;
if (x.rct_signatures.type != rct::RCTTypeNull)
a & x.rct_signatures.p;
}
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::block &b, const boost::serialization::version_type ver)
{
a & b.major_version;
a & b.minor_version;
a & b.timestamp;
a & b.prev_id;
a & b.nonce;
//------------------
a & b.miner_tx;
a & b.tx_hashes;
}
template <class Archive>
inline void serialize(Archive &a, rct::key &x, const boost::serialization::version_type ver)
{
a & reinterpret_cast<char (&)[sizeof(rct::key)]>(x);
}
template <class Archive>
inline void serialize(Archive &a, rct::ctkey &x, const boost::serialization::version_type ver)
{
a & x.dest;
a & x.mask;
}
template <class Archive>
inline void serialize(Archive &a, rct::rangeSig &x, const boost::serialization::version_type ver)
{
a & x.asig;
a & x.Ci;
}
template <class Archive>
inline void serialize(Archive &a, rct::Bulletproof &x, const boost::serialization::version_type ver)
{
a & x.V;
a & x.A;
a & x.S;
a & x.T1;
a & x.T2;
a & x.taux;
a & x.mu;
a & x.L;
a & x.R;
a & x.a;
a & x.b;
a & x.t;
}
template <class Archive>
inline void serialize(Archive &a, rct::BulletproofPlus &x, const boost::serialization::version_type ver)
{
a & x.V;
a & x.A;
a & x.A1;
a & x.B;
a & x.r1;
a & x.s1;
a & x.d1;
a & x.L;
a & x.R;
}
template <class Archive>
inline void serialize(Archive &a, rct::boroSig &x, const boost::serialization::version_type ver)
{
a & x.s0;
a & x.s1;
a & x.ee;
}
template <class Archive>
inline void serialize(Archive &a, rct::mgSig &x, const boost::serialization::version_type ver)
{
a & x.ss;
a & x.cc;
// a & x.II; // not serialized, we can recover it from the tx vin
}
template <class Archive>
inline void serialize(Archive &a, rct::clsag &x, const boost::serialization::version_type ver)
{
a & x.s;
a & x.c1;
// a & x.I; // not serialized, we can recover it from the tx vin
a & x.D;
}
template <class Archive>
inline void serialize(Archive &a, rct::ecdhTuple &x, const boost::serialization::version_type ver)
{
a & x.mask;
a & x.amount;
}
template <class Archive>
inline void serialize(Archive &a, rct::multisig_kLRki &x, const boost::serialization::version_type ver)
{
a & x.k;
a & x.L;
a & x.R;
a & x.ki;
}
template <class Archive>
inline void serialize(Archive &a, rct::multisig_out &x, const boost::serialization::version_type ver)
{
a & x.c;
if (ver < 1)
return;
a & x.mu_p;
}
template <class Archive>
inline typename std::enable_if<Archive::is_loading::value, void>::type serializeOutPk(Archive &a, rct::ctkeyV &outPk_, const boost::serialization::version_type ver)
{
rct::keyV outPk;
a & outPk;
outPk_.resize(outPk.size());
for (size_t n = 0; n < outPk_.size(); ++n)
{
outPk_[n].dest = rct::identity();
outPk_[n].mask = outPk[n];
}
}
template <class Archive>
inline typename std::enable_if<Archive::is_saving::value, void>::type serializeOutPk(Archive &a, rct::ctkeyV &outPk_, const boost::serialization::version_type ver)
{
rct::keyV outPk(outPk_.size());
for (size_t n = 0; n < outPk_.size(); ++n)
outPk[n] = outPk_[n].mask;
a & outPk;
}
template <class Archive>
inline void serialize(Archive &a, rct::rctSigBase &x, const boost::serialization::version_type ver)
{
a & x.type;
if (x.type == rct::RCTTypeNull)
return;
if (x.type != rct::RCTTypeFull && x.type != rct::RCTTypeSimple && x.type != rct::RCTTypeBulletproof && x.type != rct::RCTTypeBulletproof2 && x.type != rct::RCTTypeCLSAG && x.type != rct::RCTTypeBulletproofPlus)
throw boost::archive::archive_exception(boost::archive::archive_exception::other_exception, "Unsupported rct type");
// a & x.message; message is not serialized, as it can be reconstructed from the tx data
// a & x.mixRing; mixRing is not serialized, as it can be reconstructed from the offsets
if (x.type == rct::RCTTypeSimple) // moved to prunable with bulletproofs
a & x.pseudoOuts;
a & x.ecdhInfo;
serializeOutPk(a, x.outPk, ver);
a & x.txnFee;
}
template <class Archive>
inline void serialize(Archive &a, rct::rctSigPrunable &x, const boost::serialization::version_type ver)
{
a & x.rangeSigs;
if (x.rangeSigs.empty())
{
a & x.bulletproofs;
if (ver >= 2u)
a & x.bulletproofs_plus;
}
a & x.MGs;
if (ver >= 1u)
a & x.CLSAGs;
if (x.rangeSigs.empty())
a & x.pseudoOuts;
}
template <class Archive>
inline void serialize(Archive &a, rct::rctSig &x, const boost::serialization::version_type ver)
{
a & x.type;
if (x.type == rct::RCTTypeNull)
return;
if (x.type != rct::RCTTypeFull && x.type != rct::RCTTypeSimple && x.type != rct::RCTTypeBulletproof && x.type != rct::RCTTypeBulletproof2 && x.type != rct::RCTTypeCLSAG && x.type != rct::RCTTypeBulletproofPlus)
throw boost::archive::archive_exception(boost::archive::archive_exception::other_exception, "Unsupported rct type");
// a & x.message; message is not serialized, as it can be reconstructed from the tx data
// a & x.mixRing; mixRing is not serialized, as it can be reconstructed from the offsets
if (x.type == rct::RCTTypeSimple)
a & x.pseudoOuts;
a & x.ecdhInfo;
serializeOutPk(a, x.outPk, ver);
a & x.txnFee;
//--------------
a & x.p.rangeSigs;
if (x.p.rangeSigs.empty())
{
a & x.p.bulletproofs;
if (ver >= 2u)
a & x.p.bulletproofs_plus;
}
a & x.p.MGs;
if (ver >= 1u)
a & x.p.CLSAGs;
if (x.type == rct::RCTTypeBulletproof || x.type == rct::RCTTypeBulletproof2 || x.type == rct::RCTTypeCLSAG || x.type == rct::RCTTypeBulletproofPlus)
a & x.p.pseudoOuts;
}
template <class Archive>
inline void serialize(Archive &a, rct::RCTConfig &x, const boost::serialization::version_type ver)
{
a & x.range_proof_type;
a & x.bp_version;
}
template <class Archive>
inline void serialize(Archive &a, cryptonote::difficulty_type &x, const boost::serialization::version_type ver)
{
if (Archive::is_loading::value)
{
// load high part
uint64_t v = 0;
a & v;
x = v;
// load low part
x = x << 64;
a & v;
x += v;
}
else
{
// store high part
cryptonote::difficulty_type x_ = (x >> 64) & 0xffffffffffffffff;
uint64_t v = x_.convert_to<uint64_t>();
a & v;
// store low part
x_ = x & 0xffffffffffffffff;
v = x_.convert_to<uint64_t>();
a & v;
}
}
}
}
BOOST_CLASS_VERSION(rct::rctSigPrunable, 2)
BOOST_CLASS_VERSION(rct::rctSig, 2)
BOOST_CLASS_VERSION(rct::multisig_out, 1)
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