Implement Orchard signature validation consensus rules
This commit is contained in:
parent
af1b9c15bb
commit
3fe8285c7e
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@ -7,6 +7,8 @@
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#include "utiltest.h"
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#include "zcash/Proof.hpp"
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#include <rust/orchard.h>
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class MockCValidationState : public CValidationState {
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public:
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MOCK_METHOD5(DoS, bool(int level, bool ret,
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@ -26,13 +28,14 @@ public:
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TEST(CheckBlock, VersionTooLow) {
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auto verifier = ProofVerifier::Strict();
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auto orchardAuth = orchard::AuthValidator::Batch();
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CBlock block;
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block.nVersion = 1;
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MockCValidationState state;
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EXPECT_CALL(state, DoS(100, false, REJECT_INVALID, "version-too-low", false)).Times(1);
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EXPECT_FALSE(CheckBlock(block, state, Params(), verifier, false, false, true));
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EXPECT_FALSE(CheckBlock(block, state, Params(), verifier, orchardAuth, false, false, true));
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}
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@ -72,9 +75,10 @@ TEST(CheckBlock, BlockSproutRejectsBadVersion) {
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CBlockIndex indexPrev {Params().GenesisBlock()};
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auto verifier = ProofVerifier::Strict();
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auto orchardAuth = orchard::AuthValidator::Batch();
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EXPECT_CALL(state, DoS(100, false, REJECT_INVALID, "bad-txns-version-too-low", false)).Times(1);
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EXPECT_FALSE(CheckBlock(block, state, Params(), verifier, false, false, true));
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EXPECT_FALSE(CheckBlock(block, state, Params(), verifier, orchardAuth, false, false, true));
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}
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66
src/main.cpp
66
src/main.cpp
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@ -1188,7 +1188,7 @@ bool ContextualCheckTransaction(
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bool CheckTransaction(const CTransaction& tx, CValidationState &state,
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ProofVerifier& verifier)
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ProofVerifier& verifier, orchard::AuthValidator& orchardAuth)
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{
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// Don't count coinbase transactions because mining skews the count
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if (!tx.IsCoinBase()) {
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@ -1209,6 +1209,9 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state,
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// Sapling zk-SNARK proofs are checked in librustzcash_sapling_check_{spend,output},
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// called from ContextualCheckTransaction.
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// Queue Orchard signatures to be batch-validated.
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tx.GetOrchardBundle().QueueSignatureValidation(orchardAuth, tx.GetHash());
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return true;
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}
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}
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@ -1504,8 +1507,12 @@ bool AcceptToMemoryPool(
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return false;
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}
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// This will be a single-transaction batch, which is still more efficient as every
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// Orchard bundle contains at least two signatures.
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auto orchardAuth = orchard::AuthValidator::Batch();
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auto verifier = ProofVerifier::Strict();
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if (!CheckTransaction(tx, state, verifier))
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if (!CheckTransaction(tx, state, verifier, orchardAuth))
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return error("AcceptToMemoryPool: CheckTransaction failed");
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// Check transaction contextually against the set of consensus rules which apply in the next block to be mined.
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@ -1646,9 +1653,9 @@ bool AcceptToMemoryPool(
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}
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}
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// We don't yet know if the transaction commits to consensusBranchId,
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// but if the entry gets added to the mempool, then it has passed
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// ContextualCheckInputs and therefore this is correct.
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// For v1-v4 transactions, we don't yet know if the transaction commits
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// to consensusBranchId, but if the entry gets added to the mempool, then
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// it has passed ContextualCheckInputs and therefore this is correct.
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CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height(), mempool.HasNoInputsOf(tx), fSpendsCoinbase, consensusBranchId);
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unsigned int nSize = entry.GetTxSize();
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@ -1701,6 +1708,13 @@ bool AcceptToMemoryPool(
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return state.Error("AcceptToMemoryPool: " + errmsg);
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}
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// Check Orchard bundle authorizations.
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// This is done near the end to help prevent CPU exhaustion
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// denial-of-service attacks.
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if (!orchardAuth.Validate()) {
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return state.DoS(100, false, REJECT_INVALID, "bad-orchard-bundle-authorization");
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}
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// Check against previous transactions
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// This is done last to help prevent CPU exhaustion denial-of-service attacks.
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PrecomputedTransactionData txdata(tx);
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@ -2732,13 +2746,20 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
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// proof verification is expensive, disable if possible
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auto verifier = fExpensiveChecks ? ProofVerifier::Strict() : ProofVerifier::Disabled();
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// Disable Orchard batch signature validation if possible.
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auto orchardAuth = fExpensiveChecks ?
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orchard::AuthValidator::Batch() : orchard::AuthValidator::Disabled();
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// If in initial block download, and this block is an ancestor of a checkpoint,
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// and -ibdskiptxverification is set, disable all transaction checks.
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bool fCheckTransactions = ShouldCheckTransactions(chainparams, pindex);
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// Check it again to verify JoinSplit proofs, and in case a previous version let a bad block in
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if (!CheckBlock(block, state, chainparams, verifier, !fJustCheck, !fJustCheck, fCheckTransactions))
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if (!CheckBlock(block, state, chainparams, verifier, orchardAuth,
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!fJustCheck, !fJustCheck, fCheckTransactions))
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{
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return false;
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}
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// verify that the view's current state corresponds to the previous block
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uint256 hashPrevBlock = pindex->pprev == NULL ? uint256() : pindex->pprev->GetBlockHash();
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@ -3051,6 +3072,13 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
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block.vtx[0].GetValueOut(), blockReward),
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REJECT_INVALID, "bad-cb-amount");
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// Ensure Orchard signatures are valid (if we are checking them)
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if (!orchardAuth.Validate()) {
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return state.DoS(100,
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error("ConnectBlock(): an Orchard bundle within the block is invalid"),
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REJECT_INVALID, "bad-orchard-bundle-authorization");
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}
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if (!control.Wait())
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return state.DoS(100, false);
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int64_t nTime2 = GetTimeMicros(); nTimeVerify += nTime2 - nTimeStart;
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@ -4142,6 +4170,7 @@ bool CheckBlock(const CBlock& block,
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CValidationState& state,
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const CChainParams& chainparams,
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ProofVerifier& verifier,
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orchard::AuthValidator& orchardAuth,
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bool fCheckPOW,
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bool fCheckMerkleRoot,
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bool fCheckTransactions)
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@ -4192,7 +4221,7 @@ bool CheckBlock(const CBlock& block,
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// Check transactions
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for (const CTransaction& tx : block.vtx)
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if (!CheckTransaction(tx, state, verifier))
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if (!CheckTransaction(tx, state, verifier, orchardAuth))
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return error("CheckBlock(): CheckTransaction failed");
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unsigned int nSigOps = 0;
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@ -4394,9 +4423,9 @@ static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state
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* Store block on disk.
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* If dbp is non-NULL, the file is known to already reside on disk.
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*
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* JoinSplit proofs are not verified here; the only caller of AcceptBlock
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* (ProcessNewBlock) later invokes ActivateBestChain, which ultimately calls
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* ConnectBlock in a manner that can verify the proofs
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* JoinSplit proofs and Orchard authorizations are not verified here; the only
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* caller of AcceptBlock (ProcessNewBlock) later invokes ActivateBestChain,
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* which ultimately calls ConnectBlock in a manner that can verify the proofs.
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*/
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static bool AcceptBlock(const CBlock& block, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex, bool fRequested, CDiskBlockPos* dbp)
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{
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@ -4428,10 +4457,12 @@ static bool AcceptBlock(const CBlock& block, CValidationState& state, const CCha
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if (fTooFarAhead) return true; // Block height is too high
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}
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// See method docstring for why this is always disabled.
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// See method docstring for why these are always disabled.
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auto verifier = ProofVerifier::Disabled();
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auto orchardAuth = orchard::AuthValidator::Disabled();
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bool fCheckTransactions = ShouldCheckTransactions(chainparams, pindex);
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if ((!CheckBlock(block, state, chainparams, verifier, true, true, fCheckTransactions)) ||
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if ((!CheckBlock(block, state, chainparams, verifier, orchardAuth, true, true, fCheckTransactions)) ||
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!ContextualCheckBlock(block, state, chainparams, pindex->pprev, fCheckTransactions)) {
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if (state.IsInvalid() && !state.CorruptionPossible()) {
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pindex->nStatus |= BLOCK_FAILED_VALID;
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@ -4517,14 +4548,16 @@ bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams,
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CBlockIndex indexDummy(block);
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indexDummy.pprev = pindexPrev;
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indexDummy.nHeight = pindexPrev->nHeight + 1;
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// JoinSplit proofs are verified in ConnectBlock
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// JoinSplit proofs and Orchard authorizations are verified in ConnectBlock
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auto verifier = ProofVerifier::Disabled();
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auto orchardAuth = orchard::AuthValidator::Disabled();
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// NOTE: CheckBlockHeader is called by CheckBlock
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if (!ContextualCheckBlockHeader(block, state, chainparams, pindexPrev))
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return false;
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// The following may be duplicative of the `CheckBlock` call within `ConnectBlock`
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if (!CheckBlock(block, state, chainparams, verifier, false, fCheckMerkleRoot, true))
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if (!CheckBlock(block, state, chainparams, verifier, orchardAuth, false, fCheckMerkleRoot, true))
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return false;
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if (!ContextualCheckBlock(block, state, chainparams, pindexPrev, true))
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return false;
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@ -4919,6 +4952,9 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CCoinsView *coinsview,
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// Flags used to permit skipping checks for efficiency
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auto verifier = ProofVerifier::Disabled(); // No need to verify JoinSplits twice
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bool fCheckTransactions = true;
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// We may as well check Orchard authorizations if we are checking
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// transactions, since we can batch-validate them.
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auto orchardAuth = orchard::AuthValidator::Batch();
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for (CBlockIndex* pindex = chainActive.Tip(); pindex && pindex->pprev; pindex = pindex->pprev)
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{
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@ -4934,7 +4970,7 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CCoinsView *coinsview,
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// check level 1: verify block validity
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fCheckTransactions = ShouldCheckTransactions(chainparams, pindex);
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if (nCheckLevel >= 1 && !CheckBlock(block, state, chainparams, verifier, true, true, fCheckTransactions))
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if (nCheckLevel >= 1 && !CheckBlock(block, state, chainparams, verifier, orchardAuth, true, true, fCheckTransactions))
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return error("VerifyDB(): *** found bad block at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
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// check level 2: verify undo validity
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@ -42,6 +42,8 @@
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#include <utility>
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#include <vector>
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#include <rust/orchard.h>
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#include <boost/unordered_map.hpp>
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class CBlockIndex;
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@ -358,7 +360,8 @@ void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight);
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/** Transaction validation functions */
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/** Context-independent validity checks */
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bool CheckTransaction(const CTransaction& tx, CValidationState& state, ProofVerifier& verifier);
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bool CheckTransaction(const CTransaction& tx, CValidationState& state,
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ProofVerifier& verifier, orchard::AuthValidator& orchardAuth);
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bool CheckTransactionWithoutProofVerification(const CTransaction& tx, CValidationState &state);
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namespace Consensus {
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@ -464,6 +467,7 @@ bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state,
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bool CheckBlock(const CBlock& block, CValidationState& state,
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const CChainParams& chainparams,
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ProofVerifier& verifier,
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orchard::AuthValidator& orchardAuth,
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bool fCheckPOW,
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bool fCheckMerkleRoot,
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bool fCheckTransactions);
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@ -11,6 +11,8 @@
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#include "utiltime.h"
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#include "zcash/Proof.hpp"
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#include <rust/orchard.h>
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#include <cstdio>
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#include <boost/test/unit_test.hpp>
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@ -57,7 +59,8 @@ BOOST_AUTO_TEST_CASE(May15)
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// After May 15'th, big blocks are OK:
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forkingBlock.nTime = tMay15; // Invalidates PoW
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auto verifier = ProofVerifier::Strict();
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BOOST_CHECK(CheckBlock(forkingBlock, state, Params(), verifier, false, false, true));
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auto orchardAuth = orchard::AuthValidator::Disabled(); // Block is before NU5
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BOOST_CHECK(CheckBlock(forkingBlock, state, Params(), verifier, orchardAuth, false, false, true));
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}
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SetMockTime(0);
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@ -34,6 +34,7 @@
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#include <boost/test/data/test_case.hpp>
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#include <rust/ed25519.h>
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#include <rust/orchard.h>
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#include <univalue.h>
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@ -68,6 +69,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
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std::string comment("");
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auto verifier = ProofVerifier::Strict();
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auto orchardAuth = orchard::AuthValidator::Batch();
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ScriptError err;
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for (size_t idx = 0; idx < tests.size(); idx++) {
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UniValue test = tests[idx];
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@ -111,7 +113,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
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stream >> tx;
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CValidationState state;
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BOOST_CHECK_MESSAGE(CheckTransaction(tx, state, verifier), strTest + comment);
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BOOST_CHECK_MESSAGE(CheckTransaction(tx, state, verifier, orchardAuth), strTest + comment);
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BOOST_CHECK_MESSAGE(state.IsValid(), comment);
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PrecomputedTransactionData txdata(tx);
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@ -156,6 +158,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
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std::string comment("");
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auto verifier = ProofVerifier::Strict();
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auto orchardAuth = orchard::AuthValidator::Batch();
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ScriptError err;
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for (size_t idx = 0; idx < tests.size(); idx++) {
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UniValue test = tests[idx];
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@ -204,7 +207,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
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}
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CValidationState state;
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fValid = CheckTransaction(tx, state, verifier) && state.IsValid();
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fValid = CheckTransaction(tx, state, verifier, orchardAuth) && state.IsValid();
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PrecomputedTransactionData txdata(tx);
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for (unsigned int i = 0; i < tx.vin.size() && fValid; i++)
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@ -243,11 +246,12 @@ BOOST_AUTO_TEST_CASE(basic_transaction_tests)
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stream >> tx;
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CValidationState state;
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auto verifier = ProofVerifier::Strict();
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BOOST_CHECK_MESSAGE(CheckTransaction(tx, state, verifier) && state.IsValid(), "Simple deserialized transaction should be valid.");
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auto orchardAuth = orchard::AuthValidator::Disabled(); // No Orchard component
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BOOST_CHECK_MESSAGE(CheckTransaction(tx, state, verifier, orchardAuth) && state.IsValid(), "Simple deserialized transaction should be valid.");
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// Check that duplicate txins fail
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tx.vin.push_back(tx.vin[0]);
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BOOST_CHECK_MESSAGE(!CheckTransaction(tx, state, verifier) || !state.IsValid(), "Transaction with duplicate txins should be invalid.");
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BOOST_CHECK_MESSAGE(!CheckTransaction(tx, state, verifier, orchardAuth) || !state.IsValid(), "Transaction with duplicate txins should be invalid.");
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}
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//
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@ -424,6 +428,7 @@ void test_simple_sapling_invalidity(uint32_t consensusBranchId, CMutableTransact
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void test_simple_joinsplit_invalidity(uint32_t consensusBranchId, CMutableTransaction tx)
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{
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auto orchardAuth = orchard::AuthValidator::Disabled(); // No Orchard components
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auto verifier = ProofVerifier::Strict();
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{
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// Ensure that empty vin/vout remain invalid without
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@ -477,26 +482,26 @@ void test_simple_joinsplit_invalidity(uint32_t consensusBranchId, CMutableTransa
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jsdesc->vpub_old = -1;
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BOOST_CHECK_THROW((CTransaction(newTx)), std::ios_base::failure);
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier));
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier, orchardAuth));
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BOOST_CHECK(state.GetRejectReason() == "bad-txns-vpub_old-negative");
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jsdesc->vpub_old = MAX_MONEY + 1;
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BOOST_CHECK_THROW((CTransaction(newTx)), std::ios_base::failure);
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier));
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier, orchardAuth));
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BOOST_CHECK(state.GetRejectReason() == "bad-txns-vpub_old-toolarge");
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jsdesc->vpub_old = 0;
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jsdesc->vpub_new = -1;
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BOOST_CHECK_THROW((CTransaction(newTx)), std::ios_base::failure);
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier));
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier, orchardAuth));
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BOOST_CHECK(state.GetRejectReason() == "bad-txns-vpub_new-negative");
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jsdesc->vpub_new = MAX_MONEY + 1;
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BOOST_CHECK_THROW((CTransaction(newTx)), std::ios_base::failure);
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier));
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BOOST_CHECK(!CheckTransaction(UNSAFE_CTransaction(newTx), state, verifier, orchardAuth));
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BOOST_CHECK(state.GetRejectReason() == "bad-txns-vpub_new-toolarge");
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jsdesc->vpub_new = (MAX_MONEY / 2) + 10;
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@ -506,7 +511,7 @@ void test_simple_joinsplit_invalidity(uint32_t consensusBranchId, CMutableTransa
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JSDescription *jsdesc2 = &newTx.vJoinSplit[1];
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jsdesc2->vpub_new = (MAX_MONEY / 2) + 10;
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BOOST_CHECK(!CheckTransaction(newTx, state, verifier));
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BOOST_CHECK(!CheckTransaction(newTx, state, verifier, orchardAuth));
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BOOST_CHECK(state.GetRejectReason() == "bad-txns-txintotal-toolarge");
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}
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{
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@ -520,7 +525,7 @@ void test_simple_joinsplit_invalidity(uint32_t consensusBranchId, CMutableTransa
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jsdesc->nullifiers[0] = GetRandHash();
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jsdesc->nullifiers[1] = jsdesc->nullifiers[0];
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BOOST_CHECK(!CheckTransaction(newTx, state, verifier));
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BOOST_CHECK(!CheckTransaction(newTx, state, verifier, orchardAuth));
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BOOST_CHECK(state.GetRejectReason() == "bad-joinsplits-nullifiers-duplicate");
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jsdesc->nullifiers[1] = GetRandHash();
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@ -532,7 +537,7 @@ void test_simple_joinsplit_invalidity(uint32_t consensusBranchId, CMutableTransa
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jsdesc2->nullifiers[0] = GetRandHash();
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jsdesc2->nullifiers[1] = jsdesc->nullifiers[0];
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BOOST_CHECK(!CheckTransaction(newTx, state, verifier));
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BOOST_CHECK(!CheckTransaction(newTx, state, verifier, orchardAuth));
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BOOST_CHECK(state.GetRejectReason() == "bad-joinsplits-nullifiers-duplicate");
|
||||
}
|
||||
{
|
||||
|
@ -551,7 +556,7 @@ void test_simple_joinsplit_invalidity(uint32_t consensusBranchId, CMutableTransa
|
|||
CTransaction finalNewTx(newTx);
|
||||
BOOST_CHECK(finalNewTx.IsCoinBase());
|
||||
}
|
||||
BOOST_CHECK(!CheckTransaction(newTx, state, verifier));
|
||||
BOOST_CHECK(!CheckTransaction(newTx, state, verifier, orchardAuth));
|
||||
BOOST_CHECK(state.GetRejectReason() == "bad-cb-has-joinsplits");
|
||||
}
|
||||
}
|
||||
|
|
|
@ -18,6 +18,8 @@
|
|||
#include "wallet/wallet.h"
|
||||
#include "zcash/Proof.hpp"
|
||||
|
||||
#include <rust/orchard.h>
|
||||
|
||||
#include <boost/scoped_ptr.hpp>
|
||||
#include <boost/thread.hpp>
|
||||
#include <atomic>
|
||||
|
@ -487,8 +489,15 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
|
|||
ssValue >> wtx;
|
||||
CValidationState state;
|
||||
auto verifier = ProofVerifier::Strict();
|
||||
if (!(CheckTransaction(wtx, state, verifier) && (wtx.GetHash() == hash) && state.IsValid()))
|
||||
auto orchardAuth = orchard::AuthValidator::Batch();
|
||||
if (!(
|
||||
CheckTransaction(wtx, state, verifier, orchardAuth) &&
|
||||
(wtx.GetHash() == hash) &&
|
||||
orchardAuth.Validate() &&
|
||||
state.IsValid())
|
||||
) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Undo serialize changes in 31600
|
||||
if (31404 <= wtx.fTimeReceivedIsTxTime && wtx.fTimeReceivedIsTxTime <= 31703)
|
||||
|
|
Loading…
Reference in New Issue