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integrate simple rct api

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This commit is contained in:
moneromooo-monero 2016-07-10 12:57:22 +01:00
parent 1e8d37e7d8
commit a4d4d6194b
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GPG key ID: 686F07454D6CEFC3
11 changed files with 400 additions and 188 deletions
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86
src/cryptonote_core/cryptonote_format_utils.cpp
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@ -516,19 +516,6 @@ namespace cryptonote
};
std::vector<input_generation_context_data> in_contexts;
if (tx.version > 1)
{
// ringct requires all real inputs to be at the same index for all inputs // TODO
BOOST_FOREACH(const tx_source_entry& src_entr, sources)
{
if(src_entr.real_output != sources.begin()->real_output)
{
LOG_ERROR("All inputs must have the same index for ringct");
return false;
}
}
}
uint64_t summary_inputs_money = 0;
//fill inputs
BOOST_FOREACH(const tx_source_entry& src_entr, sources)
@ -641,24 +628,46 @@ namespace cryptonote
}
else
{
// enforce same mixin for all outputs
size_t n_total_outs = sources[0].outputs.size();
for (size_t i = 1; i < sources.size(); ++i) {
if (n_total_outs != sources[i].outputs.size()) {
LOG_ERROR("Ringct transaction has varying mixin");
return false;
bool all_rct_inputs = true;
size_t n_total_outs = sources[0].outputs.size(); // only for non-simple rct
BOOST_FOREACH(const tx_source_entry& src_entr, sources)
all_rct_inputs &= !(src_entr.mask == rct::identity());
bool use_simple_rct = all_rct_inputs;
if (!use_simple_rct)
{
// non simple ringct requires all real inputs to be at the same index for all inputs
BOOST_FOREACH(const tx_source_entry& src_entr, sources)
{
if(src_entr.real_output != sources.begin()->real_output)
{
LOG_ERROR("All inputs must have the same index for non-simple ringct");
return false;
}
}
// enforce same mixin for all outputs
for (size_t i = 1; i < sources.size(); ++i) {
if (n_total_outs != sources[i].outputs.size()) {
LOG_ERROR("Non-simple ringct transaction has varying mixin");
return false;
}
}
}
uint64_t amount_in = 0, amount_out = 0;
rct::ctkeyV inSk;
rct::ctkeyM mixRing(n_total_outs);
// mixRing indexing is done the other way round for simple
rct::ctkeyM mixRing(use_simple_rct ? sources.size() : n_total_outs);
rct::keyV destinations;
std::vector<uint64_t> amounts;
std::vector<uint64_t> inamounts, outamounts;
std::vector<unsigned int> index;
for (size_t i = 0; i < sources.size(); ++i)
{
rct::ctkey ctkey;
amount_in += sources[i].amount;
inamounts.push_back(sources[i].amount);
index.push_back(sources[i].real_output);
// inSk: (secret key, mask)
ctkey.dest = rct::sk2rct(in_contexts[i].in_ephemeral.sec);
ctkey.mask = sources[i].mask;
@ -669,21 +678,37 @@ namespace cryptonote
for (size_t i = 0; i < tx.vout.size(); ++i)
{
destinations.push_back(rct::pk2rct(boost::get<txout_to_key>(tx.vout[i].target).key));
amounts.push_back(tx.vout[i].amount);
outamounts.push_back(tx.vout[i].amount);
amount_out += tx.vout[i].amount;
}
for (size_t i = 0; i < n_total_outs; ++i) // same index assumption
if (use_simple_rct)
{
mixRing[i].resize(sources.size());
for (size_t n = 0; n < sources.size(); ++n)
// mixRing indexing is done the other way round for simple
for (size_t i = 0; i < sources.size(); ++i)
{
mixRing[i][n] = sources[n].outputs[i].second;
mixRing[i].resize(sources[i].outputs.size());
for (size_t n = 0; n < sources[i].outputs.size(); ++n)
{
mixRing[i][n] = sources[i].outputs[n].second;
}
}
}
else
{
for (size_t i = 0; i < n_total_outs; ++i) // same index assumption
{
mixRing[i].resize(sources.size());
for (size_t n = 0; n < sources.size(); ++n)
{
mixRing[i][n] = sources[n].outputs[i].second;
}
}
}
// fee
if (amount_in > amount_out)
amounts.push_back(amount_in - amount_out);
if (!use_simple_rct && amount_in > amount_out)
outamounts.push_back(amount_in - amount_out);
// zero out all amounts to mask rct outputs, real amounts are now encrypted
for (size_t i = 0; i < tx.vin.size(); ++i)
@ -696,7 +721,10 @@ namespace cryptonote
crypto::hash tx_prefix_hash;
get_transaction_prefix_hash(tx, tx_prefix_hash);
tx.rct_signatures = rct::genRct(inSk, destinations, amounts, mixRing, rct::hash2rct(tx_prefix_hash), sources[0].real_output); // same index assumption
if (use_simple_rct)
tx.rct_signatures = rct::genRctSimple(rct::hash2rct(tx_prefix_hash), inSk, destinations, inamounts, outamounts, amount_in - amount_out, mixRing, index);
else
tx.rct_signatures = rct::genRct(rct::hash2rct(tx_prefix_hash), inSk, destinations, outamounts, mixRing, sources[0].real_output); // same index assumption
LOG_PRINT2("construct_tx.log", "transaction_created: " << get_transaction_hash(tx) << ENDL << obj_to_json_str(tx) << ENDL, LOG_LEVEL_3);
}