feat(wasm-utxo): improve PSBT API and Taproot signature verification#120
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Optimize Taproot script path signature verification by reusing the SighashCache, allowing it to be created once and passed into the verification function. This improves performance for bulk signature verification by avoiding redundant cache creation. Issue: BTC-2866 Co-authored-by: llm-git <llm-git@ttll.de>
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Add new methods to PSBT implementation for better handling of signatures: - Add modern signing methods using BIP32/ECPair objects - Add methods to introspect PSBT details (inputs, outputs, signatures) - Add validation methods for signatures including Taproot key path support - Add metadata access methods for transaction properties Issue: BTC-2866 Co-authored-by: llm-git <llm-git@ttll.de>
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davidkaplanbitgo
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Jan 30, 2026
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This PR includes two key improvements to the WASM UTXO module:
Extend PSBT API with enhanced signing and introspection methods:
Optimize Taproot script path signature verification by reusing the
SighashCache, allowing it to be created once and passed into the
verification function. This improves performance for bulk signature
verification by avoiding redundant cache creation.
Issue: BTC-2866