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Construct and use PrecomputedTransactionData in PSBT signing

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Pieter Wuille
2021-03-03 16:47:44 -08:00
parent 5cb6502ac5
commit fd3f6890f3
10 changed files with 50 additions and 21 deletions
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11
src/psbt.h
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@ -567,11 +567,18 @@ enum class PSBTRole {
std::string PSBTRoleName(PSBTRole role);
/** Compute a PrecomputedTransactionData object from a psbt. */
PrecomputedTransactionData PrecomputePSBTData(const PartiallySignedTransaction& psbt);
/** Checks whether a PSBTInput is already signed. */
bool PSBTInputSigned(const PSBTInput& input);
/** Signs a PSBTInput, verifying that all provided data matches what is being signed. */
bool SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& psbt, int index, int sighash = SIGHASH_ALL, SignatureData* out_sigdata = nullptr, bool use_dummy = false);
/** 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
* multiple SignPSBTInput calls). If it is nullptr, a dummy signature will be created.
**/
bool SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& psbt, int index, const PrecomputedTransactionData* txdata, int sighash = SIGHASH_ALL, SignatureData* out_sigdata = nullptr);
/** Counts the unsigned inputs of a PSBT. */
size_t CountPSBTUnsignedInputs(const PartiallySignedTransaction& psbt);