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wownero/tests/unit_tests/cryptonote_format_utils.cpp
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// Copyright (c) 2025, 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.
#include "gtest/gtest.h"
#include "crypto/generators.h"
#include "cryptonote_basic/cryptonote_format_utils.h"
#include "file_io_utils.h"
#include "serialization/binary_utils.h"
#include "serialization/string.h"
#include "string_tools.h"
#include "unit_tests_utils.h"
namespace
{
static constexpr const char EXISTING_BLOCK_POW_HASH_202612[] =
"84f64766475d51837ac9efbef1926486e58563c95a19fef4aec3254f03000000";
} //anonymous namespace
TEST(cn_format_utils, add_extra_nonce_to_tx_extra)
{
static constexpr std::size_t max_nonce_size = TX_EXTRA_NONCE_MAX_COUNT + 1; // we *can* test higher if desired
for (int empty_prefix = 0; empty_prefix < 2; ++empty_prefix)
{
std::vector<std::uint8_t> extra_prefix;
if (!empty_prefix)
cryptonote::add_tx_pub_key_to_extra(extra_prefix, crypto::get_H());
std::vector<std::uint8_t> extra;
std::string nonce;
std::vector<cryptonote::tx_extra_field> tx_extra_fields;
extra.reserve(extra_prefix.size() + max_nonce_size + 1 + 10);
nonce.reserve(max_nonce_size);
tx_extra_fields.reserve(2);
for (std::size_t nonce_size = 0; nonce_size <= max_nonce_size; ++nonce_size)
{
extra = extra_prefix;
nonce.resize(nonce_size);
if (nonce.size())
memset(&nonce[0], '%', nonce.size());
tx_extra_fields.clear();
const std::size_t expected_extra_size = extra_prefix.size() + 1
+ tools::get_varint_byte_size(nonce_size) + nonce_size;
const bool expected_success = nonce_size <= TX_EXTRA_NONCE_MAX_COUNT;
// add nonce and do detailed test
const bool add_success = cryptonote::add_extra_nonce_to_tx_extra(extra, nonce);
ASSERT_EQ(expected_success, add_success);
if (!expected_success)
continue;
ASSERT_EQ(expected_extra_size, extra.size());
ASSERT_EQ(0, memcmp(extra_prefix.data(), extra.data(), extra_prefix.size()));
const std::uint8_t *p = extra.data() + extra_prefix.size();
ASSERT_EQ(TX_EXTRA_NONCE, *p);
++p;
std::size_t read_nonce_size = 0;
const int varint_size = tools::read_varint((const uint8_t*)(p), // copy p
(const uint8_t*) extra.data() + extra.size(),
read_nonce_size);
ASSERT_EQ(tools::get_varint_byte_size(nonce_size), varint_size);
p += varint_size;
for (std::size_t i = 0; i < nonce_size; ++i)
{
ASSERT_EQ('%', *p);
++p;
}
ASSERT_EQ(extra.data() + extra.size(), p);
// do integration test with higher-level tx_extra parsing code
ASSERT_TRUE(cryptonote::parse_tx_extra(extra, tx_extra_fields));
if (empty_prefix)
{
ASSERT_EQ(1, tx_extra_fields.size());
const auto &nonce_field = boost::get<cryptonote::tx_extra_nonce>(tx_extra_fields.at(0));
ASSERT_EQ(nonce, nonce_field.nonce);
}
else
{
ASSERT_EQ(2, tx_extra_fields.size());
const auto &pk_field = boost::get<cryptonote::tx_extra_pub_key>(tx_extra_fields.at(0));
ASSERT_EQ(crypto::get_H(), pk_field.pub_key);
const auto &nonce_field = boost::get<cryptonote::tx_extra_nonce>(tx_extra_fields.at(1));
ASSERT_EQ(nonce, nonce_field.nonce);
}
}
}
}
TEST(cn_format_utils, payment_id_tx_extra_nonce_roundtrip)
{
const crypto::hash payment_id = crypto::rand<crypto::hash>();
std::string extra_nonce;
cryptonote::set_payment_id_to_tx_extra_nonce(extra_nonce, payment_id);
ASSERT_EQ(sizeof(payment_id) + 1, extra_nonce.size());
crypto::hash parsed_payment_id = crypto::null_hash;
ASSERT_TRUE(cryptonote::get_payment_id_from_tx_extra_nonce(extra_nonce, parsed_payment_id));
EXPECT_EQ(payment_id, parsed_payment_id);
const crypto::hash8 encrypted_payment_id = crypto::rand<crypto::hash8>();
std::string encrypted_extra_nonce;
cryptonote::set_encrypted_payment_id_to_tx_extra_nonce(encrypted_extra_nonce, encrypted_payment_id);
ASSERT_EQ(sizeof(encrypted_payment_id) + 1, encrypted_extra_nonce.size());
crypto::hash8 parsed_encrypted_payment_id = crypto::null_hash8;
ASSERT_TRUE(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(encrypted_extra_nonce, parsed_encrypted_payment_id));
EXPECT_EQ(encrypted_payment_id, parsed_encrypted_payment_id);
}
TEST(cn_format_utils, payment_id_tx_extra_nonce_rejects_wrong_tag_or_size)
{
const crypto::hash payment_id = crypto::rand<crypto::hash>();
std::string extra_nonce;
cryptonote::set_payment_id_to_tx_extra_nonce(extra_nonce, payment_id);
crypto::hash parsed_payment_id = crypto::null_hash;
std::string wrong_tag = extra_nonce;
wrong_tag[0] = TX_EXTRA_NONCE_ENCRYPTED_PAYMENT_ID;
EXPECT_FALSE(cryptonote::get_payment_id_from_tx_extra_nonce(wrong_tag, parsed_payment_id));
std::string wrong_size = extra_nonce;
wrong_size.resize(wrong_size.size() - 1);
EXPECT_FALSE(cryptonote::get_payment_id_from_tx_extra_nonce(wrong_size, parsed_payment_id));
wrong_size = extra_nonce;
wrong_size.push_back('\0');
EXPECT_FALSE(cryptonote::get_payment_id_from_tx_extra_nonce(wrong_size, parsed_payment_id));
const crypto::hash8 encrypted_payment_id = crypto::rand<crypto::hash8>();
std::string encrypted_extra_nonce;
cryptonote::set_encrypted_payment_id_to_tx_extra_nonce(encrypted_extra_nonce, encrypted_payment_id);
crypto::hash8 parsed_encrypted_payment_id = crypto::null_hash8;
wrong_tag = encrypted_extra_nonce;
wrong_tag[0] = TX_EXTRA_NONCE_PAYMENT_ID;
EXPECT_FALSE(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(wrong_tag, parsed_encrypted_payment_id));
wrong_size = encrypted_extra_nonce;
wrong_size.resize(wrong_size.size() - 1);
EXPECT_FALSE(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(wrong_size, parsed_encrypted_payment_id));
wrong_size = encrypted_extra_nonce;
wrong_size.push_back('\0');
EXPECT_FALSE(cryptonote::get_encrypted_payment_id_from_tx_extra_nonce(wrong_size, parsed_encrypted_payment_id));
}
TEST(cn_format_utils, pruned_transaction_hash_caches_prunable_hash)
{
const auto tx_path = unit_test::data_dir / "txs" / "bpp_tx_e89415.bin";
cryptonote::blobdata tx_blob;
ASSERT_TRUE(epee::file_io_utils::load_file_to_string(tx_path.string(), tx_blob));
cryptonote::transaction tx;
ASSERT_TRUE(cryptonote::parse_and_validate_tx_from_blob(tx_blob, tx));
const cryptonote::blobdata_ref tx_blob_ref{tx_blob};
const crypto::hash tx_hash = cryptonote::get_transaction_hash(tx);
const crypto::hash prunable_hash = cryptonote::get_transaction_prunable_hash(tx, &tx_blob_ref);
cryptonote::blobdata pruned_tx_blob = tx_blob;
ASSERT_TRUE(cryptonote::prune_transaction_blob(pruned_tx_blob));
cryptonote::transaction pruned_tx;
ASSERT_TRUE(cryptonote::parse_and_validate_tx_base_from_blob(pruned_tx_blob, pruned_tx));
ASSERT_NE(rct::RCTTypeNull, pruned_tx.rct_signatures.type);
crypto::hash reconstructed_hash;
ASSERT_TRUE(cryptonote::get_pruned_transaction_hash(pruned_tx, prunable_hash, reconstructed_hash));
EXPECT_EQ(tx_hash, reconstructed_hash);
ASSERT_TRUE(pruned_tx.is_prunable_hash_valid());
const cryptonote::blobdata_ref pruned_tx_blob_ref{pruned_tx_blob};
EXPECT_EQ(prunable_hash, cryptonote::get_transaction_prunable_hash(pruned_tx, &pruned_tx_blob_ref));
}
TEST(cn_format_utils, block_longhash_202612_arbitrary_blob)
{
const cryptonote::blobdata blob = "not the historical block 202612 hashing blob";
const crypto::hash pow_hash = cryptonote::get_block_longhash(blob, 202612, 1, crypto::null_hash);
ASSERT_NE(EXISTING_BLOCK_POW_HASH_202612, epee::string_tools::pod_to_hex(pow_hash));
}
TEST(cn_format_utils, block_longhash_202612_mainnet_blob)
{
// load existing mainnet block 202612 from file
const auto block_202612_blob_path = unit_test::data_dir / "blocks" / "block_202612_mainnet.bin";
cryptonote::blobdata block_blob;
ASSERT_TRUE(epee::file_io_utils::load_file_to_string(block_202612_blob_path.string(), block_blob));
// parse and validate existing mainnet block 202612 and check block ID (you can see bbd604d2... on an explorer)
cryptonote::block block;
crypto::hash block_id = crypto::null_hash;
ASSERT_TRUE(cryptonote::parse_and_validate_block_from_blob(block_blob, block, &block_id));
ASSERT_EQ("bbd604d2ba11ba27935e006ed39c9bfdd99b76bf4a50654bc1e1e61217962698", epee::string_tools::pod_to_hex(block_id));
// get hashing blob for 202612 and check raw hash (you can see 426d16cf... in cryptonote::get_block_longhash() impl)
const cryptonote::blobdata hashing_blob = cryptonote::get_block_hashing_blob(block);
ASSERT_TRUE(cryptonote::get_object_hash(hashing_blob, block_id));
ASSERT_EQ("426d16cff04c71f8b16340b722dc4010a2dd3831c22041431f772547ba6e331a", epee::string_tools::pod_to_hex(block_id));
// call get_block_longhash() and check that we get the existing PoW hash
const crypto::hash pow_hash = cryptonote::get_block_longhash(hashing_blob, 202612, 1, crypto::null_hash);
ASSERT_EQ(EXISTING_BLOCK_POW_HASH_202612, epee::string_tools::pod_to_hex(pow_hash));
}
TEST(cn_format_utils, block_longhash_202612_testnet_blob)
{
// load existing testnet block 202612 from file
const auto block_202612_blob_path = unit_test::data_dir / "blocks" / "block_202612_testnet.bin";
cryptonote::blobdata block_blob;
ASSERT_TRUE(epee::file_io_utils::load_file_to_string(block_202612_blob_path.string(), block_blob));
// parse and validate existing testnet block 202612 and check block ID (you can see 248fde4b... on an explorer)
cryptonote::block block;
crypto::hash block_id;
ASSERT_TRUE(cryptonote::parse_and_validate_block_from_blob(block_blob, block, block_id));
ASSERT_EQ("248fde4b96b829c4ddbd00e3f76d35b03d01257898bc1b5578bc9e04b379a676", epee::string_tools::pod_to_hex(block_id));
// get hashing blob for 202612 and check raw hash (you can see 248fde4b... in cryptonote::get_block_longhash() impl)
const cryptonote::blobdata hashing_blob = cryptonote::get_block_hashing_blob(block);
ASSERT_TRUE(cryptonote::get_object_hash(hashing_blob, block_id));
ASSERT_EQ("248fde4b96b829c4ddbd00e3f76d35b03d01257898bc1b5578bc9e04b379a676", epee::string_tools::pod_to_hex(block_id));
// call get_block_longhash() and check that we get the existing PoW hash
const crypto::hash pow_hash = cryptonote::get_block_longhash(hashing_blob, 202612, 9, crypto::null_hash);
ASSERT_EQ(EXISTING_BLOCK_POW_HASH_202612, epee::string_tools::pod_to_hex(pow_hash));
}
TEST(cn_format_utils, block_longhash_202612_stagenet_blob)
{
// load existing stagenet block 202612 from file
const auto block_202612_blob_path = unit_test::data_dir / "blocks" / "block_202612_stagenet.bin";
cryptonote::blobdata block_blob;
ASSERT_TRUE(epee::file_io_utils::load_file_to_string(block_202612_blob_path.string(), block_blob));
// parse and validate existing stagenet block 202612 and check block ID (you can see f3449e65... on an explorer)
cryptonote::block block;
crypto::hash block_id;
ASSERT_TRUE(cryptonote::parse_and_validate_block_from_blob(block_blob, block, block_id));
ASSERT_EQ("f3449e658b5f880c4b0e69007ed5d092c9c883ac3a518166fa652d5cc505e7b1", epee::string_tools::pod_to_hex(block_id));
// get hashing blob for 202612 and check raw hash (you can see f3449e65... in cryptonote::get_block_longhash() impl)
const cryptonote::blobdata hashing_blob = cryptonote::get_block_hashing_blob(block);
ASSERT_TRUE(cryptonote::get_object_hash(hashing_blob, block_id));
ASSERT_EQ("f3449e658b5f880c4b0e69007ed5d092c9c883ac3a518166fa652d5cc505e7b1", epee::string_tools::pod_to_hex(block_id));
// call get_block_longhash() and check that we get the existing PoW hash
const crypto::hash pow_hash = cryptonote::get_block_longhash(hashing_blob, 202612, 9, crypto::null_hash);
ASSERT_EQ(EXISTING_BLOCK_POW_HASH_202612, epee::string_tools::pod_to_hex(pow_hash));
}
TEST(cn_format_utils, block_longhash_reconstruct_existing_202612)
{
// load existing mainnet block 202612 from file
const auto block_202612_blob_path = unit_test::data_dir / "blocks" / "block_202612_mainnet.bin";
cryptonote::blobdata block_blob;
ASSERT_TRUE(epee::file_io_utils::load_file_to_string(block_202612_blob_path.string(), block_blob));
// parse and validate existing mainnet block 202612
cryptonote::block block;
ASSERT_TRUE(cryptonote::parse_and_validate_block_from_blob(block_blob, block));
ASSERT_EQ(513, block.tx_hashes.size());
// modify block and hashing blob s.t. it matches buggy behavior of tree hash before counting fix
block.tx_hashes.pop_back();
block.tx_hashes.pop_back();
cryptonote::blobdata hashing_blob = cryptonote::get_block_hashing_blob(block);
ASSERT_EQ(77, hashing_blob.size());
hashing_blob.at(75) = (char) -126; // mangle total tx count from 512 to 514
// check that we can reconstruct the existing PoW hash
crypto::hash pow_hash;
crypto::cn_slow_hash(hashing_blob.data(), hashing_blob.size(), pow_hash, /*variant=*/0, /*height=*/202612);
ASSERT_EQ(EXISTING_BLOCK_POW_HASH_202612, epee::string_tools::pod_to_hex(pow_hash));
}
TEST(cn_format_utils, add_mm_merkle_root_to_tx_extra)
{
const std::vector<std::uint64_t> depths{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 63, 64, 127, 128, 16383, 16384};
const crypto::hash mm_merkle_root = crypto::rand<crypto::hash>();
for (int empty_prefix = 0; empty_prefix < 2; ++empty_prefix)
{
std::vector<std::uint8_t> extra_prefix;
if (!empty_prefix)
cryptonote::add_tx_pub_key_to_extra(extra_prefix, crypto::get_H());
std::vector<std::uint8_t> extra;
std::vector<cryptonote::tx_extra_field> tx_extra_fields;
extra.reserve(extra_prefix.size() + 1 + 1 + 10 + 32);
tx_extra_fields.reserve(2);
for (std::uint64_t mm_merkle_tree_depth : depths)
{
extra = extra_prefix;
tx_extra_fields.clear();
const std::size_t expected_extra_size = extra_prefix.size() + 1 + 1
+ tools::get_varint_byte_size(mm_merkle_tree_depth) + 32;
// add nonce and do detailed test
const bool add_success = cryptonote::add_mm_merkle_root_to_tx_extra(extra, mm_merkle_root, mm_merkle_tree_depth);
ASSERT_TRUE(add_success);
ASSERT_EQ(expected_extra_size, extra.size());
ASSERT_EQ(0, memcmp(extra_prefix.data(), extra.data(), extra_prefix.size()));
const std::uint8_t *p = extra.data() + extra_prefix.size();
ASSERT_EQ(TX_EXTRA_MERGE_MINING_TAG, *p);
++p;
ASSERT_EQ(32 + tools::get_varint_byte_size(mm_merkle_tree_depth), *p);
++p;
std::uint64_t read_depth = 0;
const int varint_size = tools::read_varint((const uint8_t*)(p), // copy p
(const uint8_t*) extra.data() + extra.size(),
read_depth);
ASSERT_EQ(tools::get_varint_byte_size(mm_merkle_tree_depth), varint_size);
ASSERT_EQ(mm_merkle_tree_depth, read_depth);
p += varint_size;
ASSERT_EQ(0, memcmp(p, mm_merkle_root.data, sizeof(mm_merkle_root)));
p += sizeof(crypto::hash);
ASSERT_EQ(extra.data() + extra.size(), p);
// do integration test with higher-level tx_extra parsing code
ASSERT_TRUE(cryptonote::parse_tx_extra(extra, tx_extra_fields));
if (empty_prefix)
{
ASSERT_EQ(1, tx_extra_fields.size());
const auto &mm_field = boost::get<cryptonote::tx_extra_merge_mining_tag>(tx_extra_fields.at(0));
ASSERT_EQ(mm_merkle_root, mm_field.merkle_root);
ASSERT_EQ(mm_merkle_tree_depth, mm_field.depth);
}
else
{
ASSERT_EQ(2, tx_extra_fields.size());
const auto &pk_field = boost::get<cryptonote::tx_extra_pub_key>(tx_extra_fields.at(0));
ASSERT_EQ(crypto::get_H(), pk_field.pub_key);
const auto &mm_field = boost::get<cryptonote::tx_extra_merge_mining_tag>(tx_extra_fields.at(1));
ASSERT_EQ(mm_merkle_root, mm_field.merkle_root);
ASSERT_EQ(mm_merkle_tree_depth, mm_field.depth);
}
}
}
}
TEST(cn_format_utils, tx_extra_merge_mining_tag_store_load)
{
const std::vector<std::uint64_t> depths{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 63, 64, 127, 128, 16383, 16384};
const crypto::hash mm_merkle_root = crypto::rand<crypto::hash>();
for (int empty_prefix = 0; empty_prefix < 2; ++empty_prefix)
{
std::vector<std::uint8_t> extra_prefix;
if (!empty_prefix)
cryptonote::add_tx_pub_key_to_extra(extra_prefix, crypto::get_H());
std::vector<std::uint8_t> extra;
std::vector<cryptonote::tx_extra_field> tx_extra_fields;
extra.reserve(extra_prefix.size() + 1 + 1 + 10 + 32);
tx_extra_fields.reserve(2);
for (std::uint64_t mm_merkle_tree_depth : depths)
{
extra = extra_prefix;
tx_extra_fields.clear();
const std::size_t expected_extra_size = extra_prefix.size() + 1 + 1
+ tools::get_varint_byte_size(mm_merkle_tree_depth) + 32;
// add nonce and do detailed test
cryptonote::tx_extra_merge_mining_tag mm;
mm.depth = mm_merkle_tree_depth;
mm.merkle_root = mm_merkle_root;
cryptonote::tx_extra_field extra_field = mm;
std::string mm_blob;
ASSERT_TRUE(::serialization::dump_binary(extra_field, mm_blob));
extra.resize(extra.size() + mm_blob.size());
memcpy(extra.data() + extra.size() - mm_blob.size(), mm_blob.data(), mm_blob.size());
ASSERT_EQ(expected_extra_size, extra.size());
ASSERT_EQ(0, memcmp(extra_prefix.data(), extra.data(), extra_prefix.size()));
const std::uint8_t *p = extra.data() + extra_prefix.size();
ASSERT_EQ(TX_EXTRA_MERGE_MINING_TAG, *p);
++p;
ASSERT_EQ(32 + tools::get_varint_byte_size(mm_merkle_tree_depth), *p);
++p;
std::uint64_t read_depth = 0;
const int varint_size = tools::read_varint((const uint8_t*)(p), // copy p
(const uint8_t*) extra.data() + extra.size(),
read_depth);
ASSERT_EQ(tools::get_varint_byte_size(mm_merkle_tree_depth), varint_size);
ASSERT_EQ(mm_merkle_tree_depth, read_depth);
p += varint_size;
ASSERT_EQ(0, memcmp(p, mm_merkle_root.data, sizeof(mm_merkle_root)));
p += sizeof(crypto::hash);
ASSERT_EQ(extra.data() + extra.size(), p);
// do integration test with higher-level tx_extra parsing code
ASSERT_TRUE(cryptonote::parse_tx_extra(extra, tx_extra_fields));
if (empty_prefix)
{
ASSERT_EQ(1, tx_extra_fields.size());
const auto &mm_field = boost::get<cryptonote::tx_extra_merge_mining_tag>(tx_extra_fields.at(0));
ASSERT_EQ(mm_merkle_root, mm_field.merkle_root);
ASSERT_EQ(mm_merkle_tree_depth, mm_field.depth);
}
else
{
ASSERT_EQ(2, tx_extra_fields.size());
const auto &pk_field = boost::get<cryptonote::tx_extra_pub_key>(tx_extra_fields.at(0));
ASSERT_EQ(crypto::get_H(), pk_field.pub_key);
const auto &mm_field = boost::get<cryptonote::tx_extra_merge_mining_tag>(tx_extra_fields.at(1));
ASSERT_EQ(mm_merkle_root, mm_field.merkle_root);
ASSERT_EQ(mm_merkle_tree_depth, mm_field.depth);
}
}
}
}
TEST(cn_format_utils, generate_key_image_helper_additional_derivations_stay_aligned)
{
// An additional tx pubkey that is not a valid point makes generate_key_derivation()
// fail for that entry. The derivations must stay index-aligned with the pubkeys
// anyway, because is_out_to_acc_precomp() indexes them by the output index.
cryptonote::account_base acc;
acc.generate();
const cryptonote::account_keys &keys = acc.get_keys();
hw::device &hwdev = hw::get_device("default");
crypto::public_key tx_pub_key, additional_tx_pub_key;
crypto::secret_key tx_sec_key, additional_tx_sec_key;
crypto::generate_keys(tx_pub_key, tx_sec_key);
crypto::generate_keys(additional_tx_pub_key, additional_tx_sec_key);
// The output we own sits at index 1, derived from the additional pubkey there.
crypto::key_derivation derivation;
ASSERT_TRUE(hwdev.generate_key_derivation(additional_tx_pub_key, keys.m_view_secret_key, derivation));
crypto::public_key out_key;
ASSERT_TRUE(crypto::derive_public_key(derivation, 1, keys.m_account_address.m_spend_public_key, out_key));
std::unordered_map<crypto::public_key, cryptonote::subaddress_index> subaddresses;
subaddresses[keys.m_account_address.m_spend_public_key] = {0, 0};
crypto::public_key invalid_pub_key = crypto::null_pkey;
reinterpret_cast<unsigned char*>(&invalid_pub_key)[31] = 0x7f;
crypto::key_derivation unused;
ASSERT_FALSE(hwdev.generate_key_derivation(invalid_pub_key, keys.m_view_secret_key, unused));
const std::vector<crypto::public_key> additional_tx_pub_keys = {invalid_pub_key, additional_tx_pub_key};
cryptonote::keypair in_ephemeral;
crypto::key_image ki;
ASSERT_TRUE(cryptonote::generate_key_image_helper(keys, subaddresses, out_key, tx_pub_key,
additional_tx_pub_keys, 1, in_ephemeral, ki, hwdev));
}