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Merge bd65a76b9d into merged_master (Bitcoin PR #21330)

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This commit is contained in:
Andrew Poelstra 2021-06-30 01:43:54 +00:00
commit 9645faf781
14 changed files with 74 additions and 42 deletions
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9
src/script/sign.cpp
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@ -18,7 +18,7 @@
typedef std::vector<unsigned char> valtype;
MutableTransactionSignatureCreator::MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CConfidentialValue& amountIn, int nHashTypeIn) : txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn) {}
MutableTransactionSignatureCreator::MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CConfidentialValue& amountIn, int nHashTypeIn) : txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn, MissingDataBehavior::FAIL) {}
bool MutableTransactionSignatureCreator::CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode, SigVersion sigversion, unsigned int flags) const
{
@ -30,6 +30,9 @@ bool MutableTransactionSignatureCreator::CreateSig(const SigningProvider& provid
if (sigversion == SigVersion::WITNESS_V0 && !key.IsCompressed())
return false;
// Signing for witness scripts needs the amount.
if (sigversion == SigVersion::WITNESS_V0 && amount.IsNull()) return false;
uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion, flags);
if (!key.Sign(hash, vchSig))
return false;
@ -310,7 +313,7 @@ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nI
Stacks stack(data);
// Get signatures
MutableTransactionSignatureChecker tx_checker(&tx, nIn, txout.nValue);
MutableTransactionSignatureChecker tx_checker(&tx, nIn, txout.nValue, MissingDataBehavior::FAIL);
SignatureExtractorChecker extractor_checker(data, tx_checker);
if (VerifyScript(data.scriptSig, txout.scriptPubKey, &data.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, extractor_checker)) {
data.complete = true;
@ -533,7 +536,7 @@ bool SignTransaction(CMutableTransaction& mtx, const SigningProvider* keystore,
}
ScriptError serror = SCRIPT_ERR_OK;
if (!VerifyScript(txin.scriptSig, prevPubKey, &inWitness.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i, amount), &serror)) {
if (!VerifyScript(txin.scriptSig, prevPubKey, &inWitness.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i, amount, MissingDataBehavior::FAIL), &serror)) {
if (serror == SCRIPT_ERR_INVALID_STACK_OPERATION) {
// Unable to sign input and verification failed (possible attempt to partially sign).
input_errors[i] = "Unable to sign input, invalid stack size (possibly missing key)";