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taproot: feed genesis hash and parent pegged asset to sighash function

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This commit is contained in:
Andrew Poelstra 2021-01-12 16:46:06 +00:00 • committed by sanket1729
parent bd2e2d5c64
commit afb9e7b727
10 changed files with 58 additions and 24 deletions
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8
src/script/interpreter.cpp
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@ -1896,6 +1896,7 @@ void PrecomputedTransactionData::Init(const T& txTo, std::vector<CTxOut>&& spent
template <class T>
PrecomputedTransactionData::PrecomputedTransactionData(const T& txTo)
: PrecomputedTransactionData(uint256{}, CAsset{})
{
Init(txTo, {});
}
@ -1906,10 +1907,13 @@ template void PrecomputedTransactionData::Init(const CMutableTransaction& txTo,
template PrecomputedTransactionData::PrecomputedTransactionData(const CTransaction& txTo);
template PrecomputedTransactionData::PrecomputedTransactionData(const CMutableTransaction& txTo);
static const CHashWriter HASHER_TAPSIGHASH = TaggedHash("TapSighash");
static const CHashWriter HASHER_TAPLEAF = TaggedHash("TapLeaf");
static const CHashWriter HASHER_TAPBRANCH = TaggedHash("TapBranch");
static const CHashWriter HASHER_TAPTWEAK = TaggedHash("TapTweak");
static const CHashWriter HASHER_TAPSIGHASH = TaggedHash("TapSighash");
PrecomputedTransactionData::PrecomputedTransactionData(const uint256& parent_genesis_hash, const CAsset& parent_pegged_asset)
: m_tapsighash_hasher(CHashWriter(HASHER_TAPSIGHASH) << parent_genesis_hash << parent_pegged_asset) {}
template<typename T>
bool SignatureHashSchnorr(uint256& hash_out, const ScriptExecutionData& execdata, const T& tx_to, uint32_t in_pos, uint8_t hash_type, SigVersion sigversion, const PrecomputedTransactionData& cache)
@ -1934,7 +1938,7 @@ bool SignatureHashSchnorr(uint256& hash_out, const ScriptExecutionData& execdata
assert(in_pos < tx_to.vin.size());
assert(cache.m_bip341_taproot_ready && cache.m_spent_outputs_ready);
CHashWriter ss = HASHER_TAPSIGHASH;
CHashWriter ss = cache.m_tapsighash_hasher;
// Epoch
static constexpr uint8_t EPOCH = 0;