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Initialize tx key from random seed

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pull/1/head
SChernykh 1 year ago
parent 11e4c459c9
commit 1bd04c2840
7 changed files with 61 additions and 22 deletions
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19
src/block_template.cpp
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@ -266,7 +266,22 @@ void BlockTemplate::update(const MinerData& data, const Mempool& mempool, Wallet
m_blockHeaderSize = m_blockHeader.size();
get_tx_keys(m_poolBlockTemplate->m_txkeyPub, m_poolBlockTemplate->m_txkeySec, miner_wallet->spend_public_key(), data.prev_id);
const int sidechain_version = m_poolBlockTemplate->get_sidechain_version();
if (sidechain_version > 1) {
static_assert(decltype(m_rng)::word_size == 64, "m_rng must be 64-bit");
uint64_t* p = reinterpret_cast<uint64_t*>(m_poolBlockTemplate->m_txkeySecSeed.h);
for (size_t i = 0; i < HASH_SIZE / sizeof(uint64_t); ++i) {
p[i] = m_rng();
}
get_tx_keys(m_poolBlockTemplate->m_txkeyPub, m_poolBlockTemplate->m_txkeySec, m_poolBlockTemplate->m_txkeySecSeed, data.prev_id);
}
else {
get_tx_keys(m_poolBlockTemplate->m_txkeyPub, m_poolBlockTemplate->m_txkeySec, miner_wallet->spend_public_key(), data.prev_id);
}
m_poolBlockTemplate->m_minerWallet = *miner_wallet;
m_sidechain->fill_sidechain_data(*m_poolBlockTemplate, m_shares);
@ -602,7 +617,7 @@ void BlockTemplate::update(const MinerData& data, const Mempool& mempool, Wallet
{
memset(m_sidechainHashKeccakState, 0, sizeof(m_sidechainHashKeccakState));
const size_t extra_nonce_offset = m_sidechainHashBlob.size() - HASH_SIZE - ((m_poolBlockTemplate->get_sidechain_version() > 1) ? EXTRA_NONCE_SIZE : 0);
const size_t extra_nonce_offset = m_sidechainHashBlob.size() - HASH_SIZE - ((sidechain_version > 1) ? EXTRA_NONCE_SIZE : 0);
if (extra_nonce_offset >= KeccakParams::HASH_DATA_AREA) {
// Sidechain data is big enough to cache keccak state up to extra_nonce
m_sidechainHashInputLength = (extra_nonce_offset / KeccakParams::HASH_DATA_AREA) * KeccakParams::HASH_DATA_AREA;

10
src/crypto.cpp
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@ -266,10 +266,10 @@ public:
return true;
}
void get_tx_keys(hash& pub, hash& sec, const hash& wallet_spend_key, const hash& monero_block_id)
void get_tx_keys(hash& pub, hash& sec, const hash& seed, const hash& monero_block_id)
{
std::array<uint8_t, HASH_SIZE * 2> index;
memcpy(index.data(), wallet_spend_key.h, HASH_SIZE);
memcpy(index.data(), seed.h, HASH_SIZE);
memcpy(index.data() + HASH_SIZE, monero_block_id.h, HASH_SIZE);
{
@ -287,7 +287,7 @@ public:
uint8_t entropy[N + HASH_SIZE * 2];
memcpy(entropy, domain, N);
memcpy(entropy + N, wallet_spend_key.h, HASH_SIZE);
memcpy(entropy + N, seed.h, HASH_SIZE);
memcpy(entropy + N + HASH_SIZE, monero_block_id.h, HASH_SIZE);
generate_keys_deterministic(pub, sec, entropy, sizeof(entropy));
@ -399,9 +399,9 @@ bool derive_public_key(const hash& derivation, size_t output_index, const hash&
return cache->get_public_key(derivation, output_index, base, derived_key);
}
void get_tx_keys(hash& pub, hash& sec, const hash& wallet_spend_key, const hash& monero_block_id)
void get_tx_keys(hash& pub, hash& sec, const hash& seed, const hash& monero_block_id)
{
cache->get_tx_keys(pub, sec, wallet_spend_key, monero_block_id);
cache->get_tx_keys(pub, sec, seed, monero_block_id);
}
void derive_view_tag(const hash& derivation, size_t output_index, uint8_t& view_tag)

2
src/crypto.h
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@ -21,7 +21,7 @@ namespace p2pool {
void generate_keys(hash& pub, hash& sec);
void generate_keys_deterministic(hash& pub, hash& sec, const uint8_t* entropy, size_t len);
void get_tx_keys(hash& pub, hash& sec, const hash& wallet_spend_key, const hash& monero_block_id);
void get_tx_keys(hash& pub, hash& sec, const hash& seed, const hash& monero_block_id);
bool check_keys(const hash& pub, const hash& sec);
bool generate_key_derivation(const hash& key1, const hash& key2, size_t output_index, hash& derivation, uint8_t& view_tag);
bool derive_public_key(const hash& derivation, size_t output_index, const hash& base, hash& derived_key);

15
src/pool_block.cpp
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@ -38,6 +38,7 @@ PoolBlock::PoolBlock()
, m_txkeyPub{}
, m_extraNonceSize(0)
, m_extraNonce(0)
, m_txkeySecSeed{}
, m_txkeySec{}
, m_parent{}
, m_sidechainHeight(0)
@ -91,6 +92,7 @@ PoolBlock& PoolBlock::operator=(const PoolBlock& b)
m_extraNonce = b.m_extraNonce;
m_transactions = b.m_transactions;
m_minerWallet = b.m_minerWallet;
m_txkeySecSeed = b.m_txkeySecSeed;
m_txkeySec = b.m_txkeySec;
m_parent = b.m_parent;
m_uncles = b.m_uncles;
@ -235,9 +237,18 @@ std::vector<uint8_t> PoolBlock::serialize_sidechain_data() const
const hash& spend = m_minerWallet.spend_public_key();
const hash& view = m_minerWallet.view_public_key();
const int sidechain_version = get_sidechain_version();
data.insert(data.end(), spend.h, spend.h + HASH_SIZE);
data.insert(data.end(), view.h, view.h + HASH_SIZE);
data.insert(data.end(), m_txkeySec.h, m_txkeySec.h + HASH_SIZE);
if (sidechain_version > 1) {
data.insert(data.end(), m_txkeySecSeed.h, m_txkeySecSeed.h + HASH_SIZE);
}
else {
data.insert(data.end(), m_txkeySec.h, m_txkeySec.h + HASH_SIZE);
}
data.insert(data.end(), m_parent.h, m_parent.h + HASH_SIZE);
writeVarint(m_uncles.size(), data);
@ -254,7 +265,7 @@ std::vector<uint8_t> PoolBlock::serialize_sidechain_data() const
writeVarint(m_cumulativeDifficulty.lo, data);
writeVarint(m_cumulativeDifficulty.hi, data);
if (get_sidechain_version() > 1) {
if (sidechain_version > 1) {
const uint8_t* p = reinterpret_cast<const uint8_t*>(m_sidechainExtraBuf);
data.insert(data.end(), p, p + sizeof(m_sidechainExtraBuf));
}

1
src/pool_block.h
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@ -106,6 +106,7 @@ struct PoolBlock
// Transaction secret key
// Required to check that pub keys in the miner transaction pay out to correct miner wallet addresses
hash m_txkeySecSeed;
hash m_txkeySec;
// Side-chain parent and uncle blocks

32
src/pool_block_parser.inl
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@ -260,20 +260,33 @@ int PoolBlock::deserialize(const uint8_t* data, size_t size, const SideChain& si
return __LINE__;
}
READ_BUF(m_txkeySec.h, HASH_SIZE);
READ_BUF(m_txkeySecSeed.h, HASH_SIZE);
if (!check_keys(m_txkeyPub, m_txkeySec)) {
return __LINE__;
}
const int sidechain_version = get_sidechain_version();
// Enforce deterministic tx keys starting from v15
if (m_majorVersion >= HARDFORK_VIEW_TAGS_VERSION) {
hash pub, sec;
get_tx_keys(pub, sec, spend_pub_key, m_prevId);
if ((pub != m_txkeyPub) || (sec != m_txkeySec)) {
if (sidechain_version > 1) {
hash pub;
get_tx_keys(pub, m_txkeySec, m_txkeySecSeed, m_prevId);
if (pub != m_txkeyPub) {
return __LINE__;
}
}
else {
m_txkeySec = m_txkeySecSeed;
// Enforce deterministic tx keys starting from v15
if (m_majorVersion >= HARDFORK_VIEW_TAGS_VERSION) {
hash pub, sec;
get_tx_keys(pub, sec, spend_pub_key, m_prevId);
if ((pub != m_txkeyPub) || (sec != m_txkeySec)) {
return __LINE__;
}
}
}
if (!check_keys(m_txkeyPub, m_txkeySec)) {
return __LINE__;
}
READ_BUF(m_parent.h, HASH_SIZE);
@ -317,7 +330,6 @@ int PoolBlock::deserialize(const uint8_t* data, size_t size, const SideChain& si
READ_VARINT(m_cumulativeDifficulty.lo);
READ_VARINT(m_cumulativeDifficulty.hi);
const int sidechain_version = get_sidechain_version();
if (sidechain_version > 1) {
READ_BUF(m_sidechainExtraBuf, sizeof(m_sidechainExtraBuf));
}

4
tests/src/block_template_tests.cpp
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@ -60,7 +60,7 @@ TEST(block_template, update)
tpl.update(data, mempool, &wallet);
const PoolBlock* b = tpl.pool_block_template();
ASSERT_EQ(b->m_sidechainId, H("d98c48f1137eac26d31ae1d94cce12625c519fc79d1b153035418a1715f6be61"));
ASSERT_EQ(b->m_sidechainId, H("e6fa454c10374439dcc9eee3198f6ba17a7a3764510569c3b963b31510b74780"));
std::vector<uint8_t> blobs;
uint64_t height;
@ -79,7 +79,7 @@ TEST(block_template, update)
hash blobs_hash;
keccak(blobs.data(), static_cast<int>(blobs.size()), blobs_hash.h);
ASSERT_EQ(blobs_hash, H("c828b3ef21a28535373aba95ece7429b4abb4c687883722f901eeaf110a9ebaa"));
ASSERT_EQ(blobs_hash, H("fd0079d39d1739ded6e710192228276cbaa55eaabde7a26c38f8986709a030e4"));
// Test 2: mempool with high fee and low fee transactions, it must choose high fee transactions
for (uint64_t i = 0; i < 512; ++i) {

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