Verify PSBT inputs rather than check for fields being empty

1 files changed, 4 insertions, 1 deletions

diff --git a/src/psbt.h b/src/psbt.h
index ddcdb8c68d..37bf142366 100644
--- a/src/psbt.h
+++ b/src/psbt.h
@@ -1218,9 +1218,12 @@ std::string PSBTRoleName(PSBTRole role);
 /** Compute a PrecomputedTransactionData object from a psbt. */
 PrecomputedTransactionData PrecomputePSBTData(const PartiallySignedTransaction& psbt);
 
-/** Checks whether a PSBTInput is already signed. */
+/** Checks whether a PSBTInput is already signed by checking for non-null finalized fields. */
 bool PSBTInputSigned(const PSBTInput& input);
 
+/** Checks whether a PSBTInput is already signed by doing script verification using final fields. */
+bool PSBTInputSignedAndVerified(const PartiallySignedTransaction psbt, unsigned int input_index, const PrecomputedTransactionData* txdata);
+
 /** Signs a PSBTInput, verifying that all provided data matches what is being signed.
  *
  * txdata should be the output of PrecomputePSBTData (which can be shared across