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danicoin/tests/core_tests/rct.cpp
moneromooo-monero d4b62a1e29
rct amount key modified as per luigi1111's recommendations 
This allows the key to be not the same for two outputs sent to
the same address (eg, if you pay yourself, and also get change
back). Also remove the key amounts lists and return parameters
since we don't actually generate random ones, so we don't need
to save them as we can recalculate them when needed if we have
the correct keys.
2016-08-28 21:30:19 +01:00

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// Copyright (c) 2014-2016, 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
#include "ringct/rctSigs.h"
#include "chaingen.h"
#include "chaingen_tests_list.h"
using namespace epee;
using namespace crypto;
using namespace cryptonote;
//----------------------------------------------------------------------------------------------------------------------
// Tests
bool gen_rct_tx_validation_base::generate_with(std::vector<test_event_entry>& events,
const int *out_idx, int mixin, uint64_t amount_paid, bool valid,
const std::function<void(std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations)> &pre_tx,
const std::function<void(transaction &tx)> &post_tx) const
{
uint64_t ts_start = 1338224400;
GENERATE_ACCOUNT(miner_account);
MAKE_GENESIS_BLOCK(events, blk_0, miner_account, ts_start);
// create 4 miner accounts, and have them mine the next 4 blocks
cryptonote::account_base miner_accounts[4];
const cryptonote::block *prev_block = &blk_0;
cryptonote::block blocks[4];
for (size_t n = 0; n < 4; ++n) {
miner_accounts[n].generate();
CHECK_AND_ASSERT_MES(generator.construct_block_manually(blocks[n], *prev_block, miner_accounts[n],
test_generator::bf_major_ver | test_generator::bf_minor_ver | test_generator::bf_timestamp | test_generator::bf_hf_version,
4, 4, prev_block->timestamp + DIFFICULTY_BLOCKS_ESTIMATE_TIMESPAN * 2, // v2 has blocks twice as long
crypto::hash(), 0, transaction(), std::vector<crypto::hash>(), 0, 0, 4),
false, "Failed to generate block");
events.push_back(blocks[n]);
prev_block = blocks + n;
LOG_PRINT_L0("Initial miner tx " << n << ": " << obj_to_json_str(blocks[n].miner_tx));
}
// rewind
cryptonote::block blk_r, blk_last;
{
blk_last = blocks[3];
for (size_t i = 0; i < CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW; ++i)
{
cryptonote::block blk;
CHECK_AND_ASSERT_MES(generator.construct_block_manually(blk, blk_last, miner_account,
test_generator::bf_major_ver | test_generator::bf_minor_ver | test_generator::bf_timestamp | test_generator::bf_hf_version,
4, 4, blk_last.timestamp + DIFFICULTY_BLOCKS_ESTIMATE_TIMESPAN * 2, // v2 has blocks twice as long
crypto::hash(), 0, transaction(), std::vector<crypto::hash>(), 0, 0, 4),
false, "Failed to generate block");
events.push_back(blk);
blk_last = blk;
}
blk_r = blk_last;
}
// create 4 txes from these miners in another block, to generate some rct outputs
transaction rct_txes[4];
rct::key rct_tx_masks[16];
cryptonote::block blk_txes[4];
for (size_t n = 0; n < 4; ++n)
{
std::vector<crypto::hash> starting_rct_tx_hashes;
std::vector<tx_source_entry> sources;
sources.resize(1);
tx_source_entry& src = sources.back();
const size_t index_in_tx = 5;
src.amount = 30000000000000;
for (int m = 0; m < 4; ++m) {
src.push_output(m, boost::get<txout_to_key>(blocks[m].miner_tx.vout[index_in_tx].target).key, src.amount);
}
src.real_out_tx_key = cryptonote::get_tx_pub_key_from_extra(blocks[n].miner_tx);
src.real_output = n;
src.real_output_in_tx_index = index_in_tx;
src.mask = rct::identity();
//fill outputs entry
tx_destination_entry td;
td.addr = miner_accounts[n].get_keys().m_account_address;
td.amount = 7390000000000;
std::vector<tx_destination_entry> destinations;
destinations.push_back(td);
destinations.push_back(td);
destinations.push_back(td);
destinations.push_back(td); // 30 -> 7.39 * 4
crypto::secret_key tx_key;
bool r = construct_tx_and_get_tx_key(miner_accounts[n].get_keys(), sources, destinations, std::vector<uint8_t>(), rct_txes[n], 0, tx_key, true);
CHECK_AND_ASSERT_MES(r, false, "failed to construct transaction");
events.push_back(rct_txes[n]);
starting_rct_tx_hashes.push_back(get_transaction_hash(rct_txes[n]));
for (size_t o = 0; o < 4; ++o)
{
crypto::key_derivation derivation;
bool r = crypto::generate_key_derivation(destinations[o].addr.m_view_public_key, tx_key, derivation);
CHECK_AND_ASSERT_MES(r, false, "Failed to generate key derivation");
crypto::secret_key amount_key;
crypto::derivation_to_scalar(derivation, o, amount_key);
if (rct_txes[n].rct_signatures.type == rct::RCTTypeSimple)
rct::decodeRctSimple(rct_txes[n].rct_signatures, rct::sk2rct(amount_key), o, rct_tx_masks[o+n*4]);
else
rct::decodeRct(rct_txes[n].rct_signatures, rct::sk2rct(amount_key), o, rct_tx_masks[o+n*4]);
}
CHECK_AND_ASSERT_MES(generator.construct_block_manually(blk_txes[n], blk_last, miner_account,
test_generator::bf_major_ver | test_generator::bf_minor_ver | test_generator::bf_timestamp | test_generator::bf_tx_hashes | test_generator::bf_hf_version,
4, 4, blk_last.timestamp + DIFFICULTY_BLOCKS_ESTIMATE_TIMESPAN * 2, // v2 has blocks twice as long
crypto::hash(), 0, transaction(), starting_rct_tx_hashes, 0, 0, 4),
false, "Failed to generate block");
events.push_back(blk_txes[n]);
blk_last = blk_txes[n];
}
// rewind
{
for (size_t i = 0; i < CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW; ++i)
{
cryptonote::block blk;
CHECK_AND_ASSERT_MES(generator.construct_block_manually(blk, blk_last, miner_account,
test_generator::bf_major_ver | test_generator::bf_minor_ver | test_generator::bf_timestamp | test_generator::bf_hf_version,
4, 4, blk_last.timestamp + DIFFICULTY_BLOCKS_ESTIMATE_TIMESPAN * 2, // v2 has blocks twice as long
crypto::hash(), 0, transaction(), std::vector<crypto::hash>(), 0, 0, 4),
false, "Failed to generate block");
events.push_back(blk);
blk_last = blk;
}
blk_r = blk_last;
}
// create a tx from the requested ouputs
std::vector<tx_source_entry> sources;
size_t rct_idx = 0, pre_rct_idx = 0;
for (size_t out_idx_idx = 0; out_idx[out_idx_idx] >= 0; ++out_idx_idx) {
sources.resize(sources.size()+1);
tx_source_entry& src = sources.back();
src.real_output = 0;
if (out_idx[out_idx_idx]) {
// rct
src.amount = 7390000000000;
src.real_out_tx_key = get_tx_pub_key_from_extra(rct_txes[rct_idx/4]);
src.real_output_in_tx_index = rct_idx&3;
src.mask = rct_tx_masks[rct_idx];
for (int m = 0; m <= mixin; ++m) {
rct::ctkey ctkey;
ctkey.dest = rct::pk2rct(boost::get<txout_to_key>(rct_txes[rct_idx/4].vout[rct_idx&3].target).key);
ctkey.mask = rct_txes[rct_idx/4].rct_signatures.outPk[rct_idx&3].mask;
src.outputs.push_back(std::make_pair(rct_idx, ctkey));
++rct_idx;
}
}
else
{
// pre rct
src.amount = 5000000000000;
src.real_out_tx_key = cryptonote::get_tx_pub_key_from_extra(blocks[pre_rct_idx].miner_tx);
src.real_output_in_tx_index = 4;
src.mask = rct::identity();
for (int m = 0; m <= mixin; ++m) {
src.push_output(m, boost::get<txout_to_key>(blocks[pre_rct_idx].miner_tx.vout[4].target).key, src.amount);
++pre_rct_idx;
}
}
}
//fill outputs entry
tx_destination_entry td;
td.addr = miner_account.get_keys().m_account_address;
td.amount = amount_paid;
std::vector<tx_destination_entry> destinations;
destinations.push_back(td);
if (pre_tx)
pre_tx(sources, destinations);
transaction tx;
crypto::secret_key tx_key;
bool r = construct_tx_and_get_tx_key(miner_accounts[0].get_keys(), sources, destinations, std::vector<uint8_t>(), tx, 0, tx_key, true);
CHECK_AND_ASSERT_MES(r, false, "failed to construct transaction");
if (post_tx)
post_tx(tx);
if (!valid)
DO_CALLBACK(events, "mark_invalid_tx");
events.push_back(tx);
LOG_PRINT_L0("Test tx: " << obj_to_json_str(tx));
return true;
}
bool gen_rct_tx_valid_from_pre_rct::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, true, NULL, NULL);
}
bool gen_rct_tx_valid_from_rct::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, true, NULL, NULL);
}
bool gen_rct_tx_valid_from_mixed::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, 0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, true, NULL, NULL);
}
bool gen_rct_tx_pre_rct_bad_real_dest::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
bool tx_creation_succeeded = false;
// in the case, the tx will fail to create, due to mismatched sk/pk
bool ret = generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {rct::key sk; rct::skpkGen(sk, sources[0].outputs[0].second.dest);},
[&tx_creation_succeeded](const transaction &tx){tx_creation_succeeded=true;});
return !ret && !tx_creation_succeeded;
}
bool gen_rct_tx_pre_rct_bad_real_mask::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {sources[0].outputs[0].second.mask = rct::zeroCommit(99999);},
NULL);
}
bool gen_rct_tx_pre_rct_bad_fake_dest::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {rct::key sk; rct::skpkGen(sk, sources[0].outputs[1].second.dest);},
NULL);
}
bool gen_rct_tx_pre_rct_bad_fake_mask::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {sources[0].outputs[1].second.mask = rct::zeroCommit(99999);},
NULL);
}
bool gen_rct_tx_rct_bad_real_dest::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
bool tx_creation_succeeded = false;
// in the case, the tx will fail to create, due to mismatched sk/pk
bool ret = generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {rct::key sk; rct::skpkGen(sk, sources[0].outputs[0].second.dest);},
[&tx_creation_succeeded](const transaction &tx){tx_creation_succeeded=true;});
return !ret && !tx_creation_succeeded;
}
bool gen_rct_tx_rct_bad_real_mask::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {sources[0].outputs[0].second.mask = rct::zeroCommit(99999);},
NULL);
}
bool gen_rct_tx_rct_bad_fake_dest::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {rct::key sk; rct::skpkGen(sk, sources[0].outputs[1].second.dest);},
NULL);
}
bool gen_rct_tx_rct_bad_fake_mask::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {sources[0].outputs[1].second.mask = rct::zeroCommit(99999);},
NULL);
}
bool gen_rct_tx_rct_spend_with_zero_commit::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
[](std::vector<tx_source_entry> &sources, std::vector<tx_destination_entry> &destinations) {sources[0].outputs[0].second.mask = rct::zeroCommit(sources[0].amount); sources[0].mask = rct::identity();},
[](transaction &tx){boost::get<txin_to_key>(tx.vin[0]).amount = 0;});
}
bool gen_rct_tx_pre_rct_zero_vin_amount::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {boost::get<txin_to_key>(tx.vin[0]).amount = 0;});
}
bool gen_rct_tx_rct_non_zero_vin_amount::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {boost::get<txin_to_key>(tx.vin[0]).amount = 5000000000000;}); // one that we know exists
}
bool gen_rct_tx_non_zero_vout_amount::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {tx.vout[0].amount = 5000000000000;}); // one that we know exists
}
bool gen_rct_tx_pre_rct_duplicate_key_image::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [&events](transaction &tx) {boost::get<txin_to_key>(tx.vin[0]).k_image = boost::get<txin_to_key>(boost::get<transaction>(events[67]).vin[0]).k_image;});
}
bool gen_rct_tx_rct_duplicate_key_image::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [&events](transaction &tx) {boost::get<txin_to_key>(tx.vin[0]).k_image = boost::get<txin_to_key>(boost::get<transaction>(events[67]).vin[0]).k_image;});
}
bool gen_rct_tx_pre_rct_wrong_key_image::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
// some random key image from the monero blockchain, so we get something that is a valid key image
static const uint8_t k_image[33] = "\x49\x3b\x56\x16\x54\x76\xa8\x75\xb7\xf4\xa8\x51\xf5\x55\xd3\x44\xe7\x3e\xea\x73\xee\xc1\x06\x7c\x7d\xb6\x57\x28\x46\x85\xe1\x07";
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {memcpy(&boost::get<txin_to_key>(tx.vin[0]).k_image, k_image, 32);});
}
bool gen_rct_tx_rct_wrong_key_image::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
// some random key image from the monero blockchain, so we get something that is a valid key image
static const uint8_t k_image[33] = "\x49\x3b\x56\x16\x54\x76\xa8\x75\xb7\xf4\xa8\x51\xf5\x55\xd3\x44\xe7\x3e\xea\x73\xee\xc1\x06\x7c\x7d\xb6\x57\x28\x46\x85\xe1\x07";
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {memcpy(&boost::get<txin_to_key>(tx.vin[0]).k_image, k_image, 32);});
}
bool gen_rct_tx_pre_rct_wrong_fee::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {tx.rct_signatures.txnFee++;});
}
bool gen_rct_tx_rct_wrong_fee::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {tx.rct_signatures.txnFee++;});
}
bool gen_rct_tx_pre_rct_increase_vin_and_fee::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {boost::get<txin_to_key>(tx.vin[0]).amount++;tx.rct_signatures.txnFee++;});
}
bool gen_rct_tx_pre_rct_remove_vin::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {tx.vin.pop_back();});
}
bool gen_rct_tx_rct_remove_vin::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {tx.vin.pop_back();});
}
bool gen_rct_tx_pre_rct_add_vout::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {tx.vout.push_back(tx.vout.back());});
}
bool gen_rct_tx_rct_add_vout::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {tx.vout.push_back(tx.vout.back());});
}
bool gen_rct_tx_pre_rct_altered_extra::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {0, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {std::string extra_nonce; crypto::hash pid = cryptonote::null_hash; set_payment_id_to_tx_extra_nonce(extra_nonce, pid); add_extra_nonce_to_tx_extra(tx.extra, extra_nonce);});
}
bool gen_rct_tx_rct_altered_extra::generate(std::vector<test_event_entry>& events) const
{
const int mixin = 2;
const int out_idx[] = {1, -1};
const uint64_t amount_paid = 10000;
return generate_with(events, out_idx, mixin, amount_paid, false,
NULL, [](transaction &tx) {std::string extra_nonce; crypto::hash pid = cryptonote::null_hash; set_payment_id_to_tx_extra_nonce(extra_nonce, pid); add_extra_nonce_to_tx_extra(tx.extra, extra_nonce);});
}
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