Module elements_miniscript::psbt

Partially-Signed Bitcoin Transactions

This module implements the Finalizer and Extractor roles defined in BIP 174, PSBT, described at https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki

Structs

• PsbtInputSatisfier
  Psbt satisfier for at inputs at a particular index Takes in &psbt because multiple inputs will share the same psbt structure All operations on this structure will panic if index is more than number of inputs in pbst This does not support satisfaction for Covenant transactoins You are probably looking for finalizer::finalize method or PsbtCovInputSatisfier

Enums

• Error
  Error type for entire Psbt
• InputError
  Error type for Pbst Input
• OutputUpdateError
  Return error type for PsbtExt::update_output_with_descriptor
• PsbtSigHashMsg
  Sighash message(signing data) for a given psbt transaction input.
• SighashError
  Return error type for PsbtExt::sighash_msg
• UtxoUpdateError
  Return error type for PsbtExt::update_input_with_descriptor

Traits

• PsbtExt
  Additional operations for miniscript descriptors for various psbt roles. Note that these APIs would generally error when used on scripts that are not miniscripts.
• PsbtInputExt
  Extension trait for PSBT inputs
• PsbtOutputExt
  Extension trait for PSBT outputs

Functions

• finalize
  Finalize the psbt. This function takes in a mutable reference to psbt and populates the final_witness and final_scriptsig of the psbt assuming all of the inputs are miniscript as per BIP174. If any of the inputs is not miniscript, this returns a parsing error For satisfaction of individual inputs, use the satisfy API. This function also performs a sanity interpreter check on the finalized psbt which involves checking the signatures/ preimages/timelocks.

Type Definitions

• PsbtCovInputSatisfier
  Psbt Input Satisfier with Covenant support. Users should be using the high level finalizer::finalize API. The LegacyCovSatisfier should be consistent with the extracted transaction.