mirror of
https://github.com/SChernykh/p2pool.git
synced 2024-09-11 16:18:47 -06:00
237 lines
6.0 KiB
C++
237 lines
6.0 KiB
C++
![]() |
/*
|
||
|
* This file is part of the Monero P2Pool <https://github.com/SChernykh/p2pool>
|
||
|
* Copyright (c) 2021 SChernykh <https://github.com/SChernykh>
|
||
|
* Portions Copyright (c) 2012-2013 The Cryptonote developers
|
||
|
* Portions Copyright (c) 2014-2021 The Monero Project
|
||
|
* Portions Copyright (c) 2021 XMRig <https://github.com/xmrig>
|
||
|
*
|
||
|
* This program is free software: you can redistribute it and/or modify
|
||
|
* it under the terms of the GNU General Public License as published by
|
||
|
* the Free Software Foundation, version 3.
|
||
|
*
|
||
|
* This program is distributed in the hope that it will be useful, but
|
||
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
* General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU General Public License
|
||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
|
||
|
#include "common.h"
|
||
|
#include "wallet.h"
|
||
|
#include "keccak.h"
|
||
|
#include "crypto.h"
|
||
|
#include <array>
|
||
|
|
||
|
static constexpr char log_category_prefix[] = "Wallet ";
|
||
|
|
||
|
namespace {
|
||
|
|
||
|
// public keys: 64 bytes -> 88 characters in base58
|
||
|
// prefix (1 byte) + checksum (4 bytes) -> 7 characters in base58
|
||
|
// 95 characters in total
|
||
|
constexpr int ADDRESS_LENGTH = 95;
|
||
|
|
||
|
// Allow only regular addresses (no integrated addresses, no subaddresses)
|
||
|
// Values taken from cryptonote_config.h (CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX)
|
||
|
constexpr uint64_t valid_prefixes[] = { 18, 53, 24 };
|
||
|
|
||
|
constexpr std::array<int, 9> block_sizes{ 0, 2, 3, 5, 6, 7, 9, 10, 11 };
|
||
|
constexpr int block_sizes_lookup[11] = { 0, -1, 1, 2, -1, 3, 4, 5, -1, 6, 7 };
|
||
|
|
||
|
constexpr char alphabet[] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
|
||
|
constexpr size_t alphabet_size = sizeof(alphabet) - 1;
|
||
|
|
||
|
static_assert(alphabet_size == 58, "Check alphabet");
|
||
|
|
||
|
struct ReverseAlphabet
|
||
|
{
|
||
|
int8_t data[256];
|
||
|
int num_symbols;
|
||
|
|
||
|
static constexpr ReverseAlphabet init()
|
||
|
{
|
||
|
ReverseAlphabet result = {};
|
||
|
|
||
|
for (int i = 0; i < 256; ++i) {
|
||
|
result.data[i] = -1;
|
||
|
}
|
||
|
|
||
|
result.num_symbols = 0;
|
||
|
for (size_t i = 0; i < alphabet_size; ++i) {
|
||
|
if (result.data[static_cast<int>(alphabet[i])] < 0) {
|
||
|
result.data[static_cast<int>(alphabet[i])] = static_cast<int8_t>(i);
|
||
|
++result.num_symbols;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
constexpr ReverseAlphabet rev_alphabet = ReverseAlphabet::init();
|
||
|
|
||
|
static_assert(rev_alphabet.num_symbols == 58, "Check alphabet");
|
||
|
|
||
|
}
|
||
|
|
||
|
namespace p2pool {
|
||
|
|
||
|
Wallet::Wallet(const char* address)
|
||
|
: m_txkeySec{}
|
||
|
, m_outputIndex(std::numeric_limits<size_t>::max())
|
||
|
, m_derivation{}
|
||
|
, m_ephPublicKey{}
|
||
|
{
|
||
|
uv_mutex_init_checked(&m_lock);
|
||
|
decode(address);
|
||
|
}
|
||
|
|
||
|
Wallet::~Wallet()
|
||
|
{
|
||
|
uv_mutex_destroy(&m_lock);
|
||
|
}
|
||
|
|
||
|
Wallet::Wallet(const Wallet& w)
|
||
|
{
|
||
|
uv_mutex_init_checked(&m_lock);
|
||
|
operator=(w);
|
||
|
}
|
||
|
|
||
|
Wallet& Wallet::operator=(const Wallet& w)
|
||
|
{
|
||
|
if (this == &w) {
|
||
|
return *this;
|
||
|
}
|
||
|
|
||
|
MutexLock lock(m_lock);
|
||
|
MutexLock lock2(w.m_lock);
|
||
|
|
||
|
m_prefix = w.m_prefix;
|
||
|
m_spendPublicKey = w.m_spendPublicKey;
|
||
|
m_viewPublicKey = w.m_viewPublicKey;
|
||
|
m_checksum = w.m_checksum;
|
||
|
m_type = w.m_type;
|
||
|
m_txkeySec = w.m_txkeySec;
|
||
|
m_outputIndex = w.m_outputIndex;
|
||
|
m_derivation = w.m_derivation;
|
||
|
m_ephPublicKey = w.m_ephPublicKey;
|
||
|
|
||
|
return *this;
|
||
|
}
|
||
|
|
||
|
bool Wallet::decode(const char* address)
|
||
|
{
|
||
|
m_type = Type::Invalid;
|
||
|
|
||
|
if (!address || (strlen(address) != ADDRESS_LENGTH)) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
constexpr int num_full_blocks = ADDRESS_LENGTH / block_sizes.back();
|
||
|
constexpr int last_block_size = ADDRESS_LENGTH % block_sizes.back();
|
||
|
constexpr int last_block_size_index = block_sizes_lookup[last_block_size];
|
||
|
|
||
|
static_assert(last_block_size_index >= 0, "Check ADDRESS_LENGTH");
|
||
|
|
||
|
uint8_t data[static_cast<size_t>(num_full_blocks) * sizeof(uint64_t) + last_block_size_index];
|
||
|
int data_index = 0;
|
||
|
|
||
|
for (int i = 0; i <= num_full_blocks; ++i) {
|
||
|
uint64_t num = 0;
|
||
|
uint64_t order = 1;
|
||
|
|
||
|
for (int j = ((i < num_full_blocks) ? block_sizes.back() : last_block_size) - 1; j >= 0; --j) {
|
||
|
const int digit = rev_alphabet.data[static_cast<int>(address[j])];
|
||
|
if (digit < 0) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
uint64_t hi;
|
||
|
const uint64_t tmp = num + umul128(order, static_cast<uint64_t>(digit), &hi);
|
||
|
if ((tmp < num) || hi) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
num = tmp;
|
||
|
order *= alphabet_size;
|
||
|
}
|
||
|
|
||
|
address += block_sizes.back();
|
||
|
|
||
|
for (int j = ((i < num_full_blocks) ? sizeof(num) : last_block_size_index) - 1; j >= 0; --j) {
|
||
|
data[data_index++] = static_cast<uint8_t>(num >> (j * 8));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
m_prefix = data[0];
|
||
|
|
||
|
if (m_prefix == valid_prefixes[0]) m_type = Type::Mainnet;
|
||
|
if (m_prefix == valid_prefixes[1]) m_type = Type::Testnet;
|
||
|
if (m_prefix == valid_prefixes[2]) m_type = Type::Stagenet;
|
||
|
|
||
|
if (m_type == Type::Invalid) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
memcpy(m_spendPublicKey.h, data + 1, HASH_SIZE);
|
||
|
memcpy(m_viewPublicKey.h, data + 1 + HASH_SIZE, HASH_SIZE);
|
||
|
memcpy(&m_checksum, data + 1 + HASH_SIZE * 2, sizeof(m_checksum));
|
||
|
|
||
|
uint8_t md[200];
|
||
|
keccak(data, sizeof(data) - sizeof(m_checksum), md);
|
||
|
|
||
|
if (memcmp(&m_checksum, md, sizeof(m_checksum)) != 0) {
|
||
|
m_type = Type::Invalid;
|
||
|
}
|
||
|
|
||
|
return valid();
|
||
|
}
|
||
|
|
||
|
void Wallet::assign(const hash& spend_pub_key, const hash& view_pub_key)
|
||
|
{
|
||
|
MutexLock lock(m_lock);
|
||
|
|
||
|
m_prefix = 0;
|
||
|
m_spendPublicKey = spend_pub_key;
|
||
|
m_viewPublicKey = view_pub_key;
|
||
|
m_checksum = 0;
|
||
|
|
||
|
m_type = Type::Mainnet;
|
||
|
|
||
|
m_txkeySec = {};
|
||
|
m_outputIndex = std::numeric_limits<size_t>::max();
|
||
|
m_derivation = {};
|
||
|
m_ephPublicKey = {};
|
||
|
}
|
||
|
|
||
|
void Wallet::get_eph_public_key(const hash& txkey_sec, size_t output_index, hash& eph_public_key)
|
||
|
{
|
||
|
MutexLock lock(m_lock);
|
||
|
|
||
|
hash derivation;
|
||
|
bool derivation_changed = false;
|
||
|
|
||
|
if (txkey_sec == m_txkeySec) {
|
||
|
derivation = m_derivation;
|
||
|
}
|
||
|
else {
|
||
|
generate_key_derivation(m_viewPublicKey, txkey_sec, derivation);
|
||
|
m_derivation = derivation;
|
||
|
m_txkeySec = txkey_sec;
|
||
|
derivation_changed = true;
|
||
|
}
|
||
|
|
||
|
if (!derivation_changed && (output_index == m_outputIndex)) {
|
||
|
eph_public_key = m_ephPublicKey;
|
||
|
}
|
||
|
else {
|
||
|
derive_public_key(derivation, output_index, m_spendPublicKey, eph_public_key);
|
||
|
m_outputIndex = output_index;
|
||
|
m_ephPublicKey = eph_public_key;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
} // namespace p2pool
|