520 lines
18 KiB
C++
Executable file
520 lines
18 KiB
C++
Executable file
// Copyright (c) 2011-2016 The Cryptonote developers
|
|
// Distributed under the MIT/X11 software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include "ITransaction.h"
|
|
#include "TransactionApiExtra.h"
|
|
#include "TransactionUtils.h"
|
|
|
|
#include "Account.h"
|
|
#include "CryptoNoteCore/CryptoNoteTools.h"
|
|
#include "CryptoNoteConfig.h"
|
|
|
|
#include <boost/optional.hpp>
|
|
#include <numeric>
|
|
#include <unordered_set>
|
|
|
|
using namespace Crypto;
|
|
|
|
namespace {
|
|
|
|
using namespace CryptoNote;
|
|
|
|
void derivePublicKey(const AccountPublicAddress& to, const SecretKey& txKey, size_t outputIndex, PublicKey& ephemeralKey) {
|
|
KeyDerivation derivation;
|
|
generate_key_derivation(to.viewPublicKey, txKey, derivation);
|
|
derive_public_key(derivation, outputIndex, to.spendPublicKey, ephemeralKey);
|
|
}
|
|
|
|
}
|
|
|
|
namespace CryptoNote {
|
|
|
|
using namespace Crypto;
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
// class Transaction declaration
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
class TransactionImpl : public ITransaction {
|
|
public:
|
|
TransactionImpl();
|
|
TransactionImpl(const BinaryArray& txblob);
|
|
TransactionImpl(const CryptoNote::Transaction& tx);
|
|
|
|
// ITransactionReader
|
|
virtual Hash getTransactionHash() const override;
|
|
virtual Hash getTransactionPrefixHash() const override;
|
|
virtual PublicKey getTransactionPublicKey() const override;
|
|
virtual uint64_t getUnlockTime() const override;
|
|
virtual bool getPaymentId(Hash& hash) const override;
|
|
virtual bool getExtraNonce(BinaryArray& nonce) const override;
|
|
virtual BinaryArray getExtra() const override;
|
|
|
|
// inputs
|
|
virtual size_t getInputCount() const override;
|
|
virtual uint64_t getInputTotalAmount() const override;
|
|
virtual TransactionTypes::InputType getInputType(size_t index) const override;
|
|
virtual void getInput(size_t index, KeyInput& input) const override;
|
|
virtual void getInput(size_t index, MultisignatureInput& input) const override;
|
|
|
|
// outputs
|
|
virtual size_t getOutputCount() const override;
|
|
virtual uint64_t getOutputTotalAmount() const override;
|
|
virtual TransactionTypes::OutputType getOutputType(size_t index) const override;
|
|
virtual void getOutput(size_t index, KeyOutput& output, uint64_t& amount) const override;
|
|
virtual void getOutput(size_t index, MultisignatureOutput& output, uint64_t& amount) const override;
|
|
|
|
virtual size_t getRequiredSignaturesCount(size_t index) const override;
|
|
virtual bool findOutputsToAccount(const AccountPublicAddress& addr, const SecretKey& viewSecretKey, std::vector<uint32_t>& outs, uint64_t& outputAmount) const override;
|
|
|
|
// various checks
|
|
virtual bool validateInputs() const override;
|
|
virtual bool validateOutputs() const override;
|
|
virtual bool validateSignatures() const override;
|
|
|
|
// get serialized transaction
|
|
virtual BinaryArray getTransactionData() const override;
|
|
|
|
// ITransactionWriter
|
|
|
|
virtual void setUnlockTime(uint64_t unlockTime) override;
|
|
virtual void setPaymentId(const Hash& hash) override;
|
|
virtual void setExtraNonce(const BinaryArray& nonce) override;
|
|
virtual void appendExtra(const BinaryArray& extraData) override;
|
|
|
|
// Inputs/Outputs
|
|
virtual size_t addInput(const KeyInput& input) override;
|
|
virtual size_t addInput(const MultisignatureInput& input) override;
|
|
virtual size_t addInput(const AccountKeys& senderKeys, const TransactionTypes::InputKeyInfo& info, KeyPair& ephKeys) override;
|
|
|
|
virtual size_t addOutput(uint64_t amount, const AccountPublicAddress& to) override;
|
|
virtual size_t addOutput(uint64_t amount, const std::vector<AccountPublicAddress>& to, uint32_t requiredSignatures) override;
|
|
virtual size_t addOutput(uint64_t amount, const KeyOutput& out) override;
|
|
virtual size_t addOutput(uint64_t amount, const MultisignatureOutput& out) override;
|
|
|
|
virtual void signInputKey(size_t input, const TransactionTypes::InputKeyInfo& info, const KeyPair& ephKeys) override;
|
|
virtual void signInputMultisignature(size_t input, const PublicKey& sourceTransactionKey, size_t outputIndex, const AccountKeys& accountKeys) override;
|
|
virtual void signInputMultisignature(size_t input, const KeyPair& ephemeralKeys) override;
|
|
|
|
|
|
// secret key
|
|
virtual bool getTransactionSecretKey(SecretKey& key) const override;
|
|
virtual void setTransactionSecretKey(const SecretKey& key) override;
|
|
|
|
private:
|
|
|
|
void invalidateHash();
|
|
|
|
std::vector<Signature>& getSignatures(size_t input);
|
|
|
|
const SecretKey& txSecretKey() const {
|
|
if (!secretKey) {
|
|
throw std::runtime_error("Operation requires transaction secret key");
|
|
}
|
|
return *secretKey;
|
|
}
|
|
|
|
void checkIfSigning() const {
|
|
if (!transaction.signatures.empty()) {
|
|
throw std::runtime_error("Cannot perform requested operation, since it will invalidate transaction signatures");
|
|
}
|
|
}
|
|
|
|
CryptoNote::Transaction transaction;
|
|
boost::optional<SecretKey> secretKey;
|
|
mutable boost::optional<Hash> transactionHash;
|
|
TransactionExtra extra;
|
|
};
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
// class Transaction implementation
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
std::unique_ptr<ITransaction> createTransaction() {
|
|
return std::unique_ptr<ITransaction>(new TransactionImpl());
|
|
}
|
|
|
|
std::unique_ptr<ITransaction> createTransaction(const BinaryArray& transactionBlob) {
|
|
return std::unique_ptr<ITransaction>(new TransactionImpl(transactionBlob));
|
|
}
|
|
|
|
std::unique_ptr<ITransaction> createTransaction(const CryptoNote::Transaction& tx) {
|
|
return std::unique_ptr<ITransaction>(new TransactionImpl(tx));
|
|
}
|
|
|
|
TransactionImpl::TransactionImpl() {
|
|
CryptoNote::KeyPair txKeys(CryptoNote::generateKeyPair());
|
|
|
|
TransactionExtraPublicKey pk = { txKeys.publicKey };
|
|
extra.set(pk);
|
|
|
|
transaction.version = CURRENT_TRANSACTION_VERSION;
|
|
transaction.unlockTime = 0;
|
|
transaction.extra = extra.serialize();
|
|
|
|
secretKey = txKeys.secretKey;
|
|
}
|
|
|
|
TransactionImpl::TransactionImpl(const BinaryArray& ba) {
|
|
if (!fromBinaryArray(transaction, ba)) {
|
|
throw std::runtime_error("Invalid transaction data");
|
|
}
|
|
|
|
extra.parse(transaction.extra);
|
|
transactionHash = getBinaryArrayHash(ba); // avoid serialization if we already have blob
|
|
}
|
|
|
|
TransactionImpl::TransactionImpl(const CryptoNote::Transaction& tx) : transaction(tx) {
|
|
extra.parse(transaction.extra);
|
|
}
|
|
|
|
void TransactionImpl::invalidateHash() {
|
|
if (transactionHash.is_initialized()) {
|
|
transactionHash = decltype(transactionHash)();
|
|
}
|
|
}
|
|
|
|
Hash TransactionImpl::getTransactionHash() const {
|
|
if (!transactionHash.is_initialized()) {
|
|
transactionHash = getObjectHash(transaction);
|
|
}
|
|
|
|
return transactionHash.get();
|
|
}
|
|
|
|
Hash TransactionImpl::getTransactionPrefixHash() const {
|
|
return getObjectHash(*static_cast<const TransactionPrefix*>(&transaction));
|
|
}
|
|
|
|
PublicKey TransactionImpl::getTransactionPublicKey() const {
|
|
PublicKey pk(NULL_PUBLIC_KEY);
|
|
extra.getPublicKey(pk);
|
|
return pk;
|
|
}
|
|
|
|
uint64_t TransactionImpl::getUnlockTime() const {
|
|
return transaction.unlockTime;
|
|
}
|
|
|
|
void TransactionImpl::setUnlockTime(uint64_t unlockTime) {
|
|
checkIfSigning();
|
|
transaction.unlockTime = unlockTime;
|
|
invalidateHash();
|
|
}
|
|
|
|
bool TransactionImpl::getTransactionSecretKey(SecretKey& key) const {
|
|
if (!secretKey) {
|
|
return false;
|
|
}
|
|
key = reinterpret_cast<const SecretKey&>(secretKey.get());
|
|
return true;
|
|
}
|
|
|
|
void TransactionImpl::setTransactionSecretKey(const SecretKey& key) {
|
|
const auto& sk = reinterpret_cast<const SecretKey&>(key);
|
|
PublicKey pk;
|
|
PublicKey txPubKey;
|
|
|
|
secret_key_to_public_key(sk, pk);
|
|
extra.getPublicKey(txPubKey);
|
|
|
|
if (txPubKey != pk) {
|
|
throw std::runtime_error("Secret transaction key does not match public key");
|
|
}
|
|
|
|
secretKey = key;
|
|
}
|
|
|
|
size_t TransactionImpl::addInput(const KeyInput& input) {
|
|
checkIfSigning();
|
|
transaction.inputs.emplace_back(input);
|
|
invalidateHash();
|
|
return transaction.inputs.size() - 1;
|
|
}
|
|
|
|
size_t TransactionImpl::addInput(const AccountKeys& senderKeys, const TransactionTypes::InputKeyInfo& info, KeyPair& ephKeys) {
|
|
checkIfSigning();
|
|
KeyInput input;
|
|
input.amount = info.amount;
|
|
|
|
generate_key_image_helper(
|
|
senderKeys,
|
|
info.realOutput.transactionPublicKey,
|
|
info.realOutput.outputInTransaction,
|
|
ephKeys,
|
|
input.keyImage);
|
|
|
|
// fill outputs array and use relative offsets
|
|
for (const auto& out : info.outputs) {
|
|
input.outputIndexes.push_back(out.outputIndex);
|
|
}
|
|
|
|
input.outputIndexes = absolute_output_offsets_to_relative(input.outputIndexes);
|
|
return addInput(input);
|
|
}
|
|
|
|
size_t TransactionImpl::addInput(const MultisignatureInput& input) {
|
|
checkIfSigning();
|
|
transaction.inputs.push_back(input);
|
|
invalidateHash();
|
|
return transaction.inputs.size() - 1;
|
|
}
|
|
|
|
size_t TransactionImpl::addOutput(uint64_t amount, const AccountPublicAddress& to) {
|
|
checkIfSigning();
|
|
|
|
KeyOutput outKey;
|
|
derivePublicKey(to, txSecretKey(), transaction.outputs.size(), outKey.key);
|
|
TransactionOutput out = { amount, outKey };
|
|
transaction.outputs.emplace_back(out);
|
|
invalidateHash();
|
|
|
|
return transaction.outputs.size() - 1;
|
|
}
|
|
|
|
size_t TransactionImpl::addOutput(uint64_t amount, const std::vector<AccountPublicAddress>& to, uint32_t requiredSignatures) {
|
|
checkIfSigning();
|
|
|
|
const auto& txKey = txSecretKey();
|
|
size_t outputIndex = transaction.outputs.size();
|
|
MultisignatureOutput outMsig;
|
|
outMsig.requiredSignatureCount = requiredSignatures;
|
|
outMsig.keys.resize(to.size());
|
|
|
|
for (size_t i = 0; i < to.size(); ++i) {
|
|
derivePublicKey(to[i], txKey, outputIndex, outMsig.keys[i]);
|
|
}
|
|
|
|
TransactionOutput out = { amount, outMsig };
|
|
transaction.outputs.emplace_back(out);
|
|
invalidateHash();
|
|
|
|
return outputIndex;
|
|
}
|
|
|
|
size_t TransactionImpl::addOutput(uint64_t amount, const KeyOutput& out) {
|
|
checkIfSigning();
|
|
size_t outputIndex = transaction.outputs.size();
|
|
TransactionOutput realOut = { amount, out };
|
|
transaction.outputs.emplace_back(realOut);
|
|
invalidateHash();
|
|
return outputIndex;
|
|
}
|
|
|
|
size_t TransactionImpl::addOutput(uint64_t amount, const MultisignatureOutput& out) {
|
|
checkIfSigning();
|
|
size_t outputIndex = transaction.outputs.size();
|
|
TransactionOutput realOut = { amount, out };
|
|
transaction.outputs.emplace_back(realOut);
|
|
invalidateHash();
|
|
return outputIndex;
|
|
}
|
|
|
|
void TransactionImpl::signInputKey(size_t index, const TransactionTypes::InputKeyInfo& info, const KeyPair& ephKeys) {
|
|
const auto& input = boost::get<KeyInput>(getInputChecked(transaction, index, TransactionTypes::InputType::Key));
|
|
Hash prefixHash = getTransactionPrefixHash();
|
|
|
|
std::vector<Signature> signatures;
|
|
std::vector<const PublicKey*> keysPtrs;
|
|
|
|
for (const auto& o : info.outputs) {
|
|
keysPtrs.push_back(reinterpret_cast<const PublicKey*>(&o.targetKey));
|
|
}
|
|
|
|
signatures.resize(keysPtrs.size());
|
|
|
|
generate_ring_signature(
|
|
reinterpret_cast<const Hash&>(prefixHash),
|
|
reinterpret_cast<const KeyImage&>(input.keyImage),
|
|
keysPtrs,
|
|
reinterpret_cast<const SecretKey&>(ephKeys.secretKey),
|
|
info.realOutput.transactionIndex,
|
|
signatures.data());
|
|
|
|
getSignatures(index) = signatures;
|
|
invalidateHash();
|
|
}
|
|
|
|
void TransactionImpl::signInputMultisignature(size_t index, const PublicKey& sourceTransactionKey, size_t outputIndex, const AccountKeys& accountKeys) {
|
|
KeyDerivation derivation;
|
|
PublicKey ephemeralPublicKey;
|
|
SecretKey ephemeralSecretKey;
|
|
|
|
generate_key_derivation(
|
|
reinterpret_cast<const PublicKey&>(sourceTransactionKey),
|
|
reinterpret_cast<const SecretKey&>(accountKeys.viewSecretKey),
|
|
derivation);
|
|
|
|
derive_public_key(derivation, outputIndex,
|
|
reinterpret_cast<const PublicKey&>(accountKeys.address.spendPublicKey), ephemeralPublicKey);
|
|
derive_secret_key(derivation, outputIndex,
|
|
reinterpret_cast<const SecretKey&>(accountKeys.spendSecretKey), ephemeralSecretKey);
|
|
|
|
Signature signature;
|
|
auto txPrefixHash = getTransactionPrefixHash();
|
|
|
|
generate_signature(reinterpret_cast<const Hash&>(txPrefixHash),
|
|
ephemeralPublicKey, ephemeralSecretKey, signature);
|
|
|
|
getSignatures(index).push_back(signature);
|
|
invalidateHash();
|
|
}
|
|
|
|
void TransactionImpl::signInputMultisignature(size_t index, const KeyPair& ephemeralKeys) {
|
|
Signature signature;
|
|
auto txPrefixHash = getTransactionPrefixHash();
|
|
|
|
generate_signature(txPrefixHash, ephemeralKeys.publicKey, ephemeralKeys.secretKey, signature);
|
|
|
|
getSignatures(index).push_back(signature);
|
|
invalidateHash();
|
|
}
|
|
|
|
std::vector<Signature>& TransactionImpl::getSignatures(size_t input) {
|
|
// update signatures container size if needed
|
|
if (transaction.signatures.size() < transaction.inputs.size()) {
|
|
transaction.signatures.resize(transaction.inputs.size());
|
|
}
|
|
// check range
|
|
if (input >= transaction.signatures.size()) {
|
|
throw std::runtime_error("Invalid input index");
|
|
}
|
|
|
|
return transaction.signatures[input];
|
|
}
|
|
|
|
BinaryArray TransactionImpl::getTransactionData() const {
|
|
return toBinaryArray(transaction);
|
|
}
|
|
|
|
void TransactionImpl::setPaymentId(const Hash& hash) {
|
|
checkIfSigning();
|
|
BinaryArray paymentIdBlob;
|
|
setPaymentIdToTransactionExtraNonce(paymentIdBlob, reinterpret_cast<const Hash&>(hash));
|
|
setExtraNonce(paymentIdBlob);
|
|
}
|
|
|
|
bool TransactionImpl::getPaymentId(Hash& hash) const {
|
|
BinaryArray nonce;
|
|
if (getExtraNonce(nonce)) {
|
|
Hash paymentId;
|
|
if (getPaymentIdFromTransactionExtraNonce(nonce, paymentId)) {
|
|
hash = reinterpret_cast<const Hash&>(paymentId);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void TransactionImpl::setExtraNonce(const BinaryArray& nonce) {
|
|
checkIfSigning();
|
|
TransactionExtraNonce extraNonce = { nonce };
|
|
extra.set(extraNonce);
|
|
transaction.extra = extra.serialize();
|
|
invalidateHash();
|
|
}
|
|
|
|
void TransactionImpl::appendExtra(const BinaryArray& extraData) {
|
|
checkIfSigning();
|
|
transaction.extra.insert(
|
|
transaction.extra.end(), extraData.begin(), extraData.end());
|
|
}
|
|
|
|
bool TransactionImpl::getExtraNonce(BinaryArray& nonce) const {
|
|
TransactionExtraNonce extraNonce;
|
|
if (extra.get(extraNonce)) {
|
|
nonce = extraNonce.nonce;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
BinaryArray TransactionImpl::getExtra() const {
|
|
return transaction.extra;
|
|
}
|
|
|
|
size_t TransactionImpl::getInputCount() const {
|
|
return transaction.inputs.size();
|
|
}
|
|
|
|
uint64_t TransactionImpl::getInputTotalAmount() const {
|
|
return std::accumulate(transaction.inputs.begin(), transaction.inputs.end(), 0ULL, [](uint64_t val, const TransactionInput& in) {
|
|
return val + getTransactionInputAmount(in); });
|
|
}
|
|
|
|
TransactionTypes::InputType TransactionImpl::getInputType(size_t index) const {
|
|
return getTransactionInputType(getInputChecked(transaction, index));
|
|
}
|
|
|
|
void TransactionImpl::getInput(size_t index, KeyInput& input) const {
|
|
input = boost::get<KeyInput>(getInputChecked(transaction, index, TransactionTypes::InputType::Key));
|
|
}
|
|
|
|
void TransactionImpl::getInput(size_t index, MultisignatureInput& input) const {
|
|
input = boost::get<MultisignatureInput>(getInputChecked(transaction, index, TransactionTypes::InputType::Multisignature));
|
|
}
|
|
|
|
size_t TransactionImpl::getOutputCount() const {
|
|
return transaction.outputs.size();
|
|
}
|
|
|
|
uint64_t TransactionImpl::getOutputTotalAmount() const {
|
|
return std::accumulate(transaction.outputs.begin(), transaction.outputs.end(), 0ULL, [](uint64_t val, const TransactionOutput& out) {
|
|
return val + out.amount; });
|
|
}
|
|
|
|
TransactionTypes::OutputType TransactionImpl::getOutputType(size_t index) const {
|
|
return getTransactionOutputType(getOutputChecked(transaction, index).target);
|
|
}
|
|
|
|
void TransactionImpl::getOutput(size_t index, KeyOutput& output, uint64_t& amount) const {
|
|
const auto& out = getOutputChecked(transaction, index, TransactionTypes::OutputType::Key);
|
|
output = boost::get<KeyOutput>(out.target);
|
|
amount = out.amount;
|
|
}
|
|
|
|
void TransactionImpl::getOutput(size_t index, MultisignatureOutput& output, uint64_t& amount) const {
|
|
const auto& out = getOutputChecked(transaction, index, TransactionTypes::OutputType::Multisignature);
|
|
output = boost::get<MultisignatureOutput>(out.target);
|
|
amount = out.amount;
|
|
}
|
|
|
|
bool TransactionImpl::findOutputsToAccount(const AccountPublicAddress& addr, const SecretKey& viewSecretKey, std::vector<uint32_t>& out, uint64_t& amount) const {
|
|
return ::CryptoNote::findOutputsToAccount(transaction, addr, viewSecretKey, out, amount);
|
|
}
|
|
|
|
size_t TransactionImpl::getRequiredSignaturesCount(size_t index) const {
|
|
return ::getRequiredSignaturesCount(getInputChecked(transaction, index));
|
|
}
|
|
|
|
bool TransactionImpl::validateInputs() const {
|
|
return
|
|
check_inputs_types_supported(transaction) &&
|
|
check_inputs_overflow(transaction) &&
|
|
checkInputsKeyimagesDiff(transaction) &&
|
|
checkMultisignatureInputsDiff(transaction);
|
|
}
|
|
|
|
bool TransactionImpl::validateOutputs() const {
|
|
return
|
|
check_outs_valid(transaction) &&
|
|
check_outs_overflow(transaction);
|
|
}
|
|
|
|
bool TransactionImpl::validateSignatures() const {
|
|
if (transaction.signatures.size() < transaction.inputs.size()) {
|
|
return false;
|
|
}
|
|
|
|
for (size_t i = 0; i < transaction.inputs.size(); ++i) {
|
|
if (getRequiredSignaturesCount(i) > transaction.signatures[i].size()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|