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Add comment on witness-null issuance transactions' invalidity #472

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merged 1 commit into from
Mar 6, 2019
Merged

Add comment on witness-null issuance transactions' invalidity #472

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6 changes: 6 additions & 0 deletions src/validation.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -862,6 +862,9 @@ bool VerifyAmounts(const CCoinsViewCache& cache, const CTransaction& tx, std::ve
return false;
}
if (!issuance.nAmount.IsNull()) {
// Note: This check disallows issuances in transactions with *no* witness data.
// This can be relaxed in a future update as a HF by passing in an empty rangeproof
// to `VerifyIssuanceAmount` instead.
if (i >= tx.wit.vtxinwit.size()) {
return false;
}
Expand Down Expand Up @@ -889,6 +892,9 @@ bool VerifyAmounts(const CCoinsViewCache& cache, const CTransaction& tx, std::ve
return false;
}

// Note: This check disallows issuances in transactions with *no* witness data.
// This can be relaxed in a future update as a HF by passing in an empty rangeproof
// to `VerifyIssuanceAmount` instead.
if (i >= tx.wit.vtxinwit.size()) {
return false;
}
Expand Down