feat(wasm-utxo): add MuSig2 taproot key-path finalization support #24
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Add lint target that runs cargo fmt and clippy checks Issue: BTC-2652 Co-authored-by: llm-git <[email protected]>
…arameter Updates the test_psbt_fixtures macro to include the transaction format as an explicit parameter instead of hardcoding it within each test function. This reduces code duplication and makes the test infrastructure more flexible. Issue: BTC-2652 Co-authored-by: llm-git <[email protected]>
Implements MuSig2 PSBT proprietary key-value parsing and signature aggregation for taproot key path spending. This enables BitGo wallets to create threshold signatures for taproot outputs using the MuSig2 protocol as specified in BIP-327, which appear as single-signature spends on-chain. The implementation includes: - Parsing MuSig2 participants, nonces, and partial signatures from PSBT - Validating and aggregating partial signatures into a final signature - Finalizing PSBT inputs with aggregated signatures Issue: BTC-2652 Co-authored-by: llm-git <[email protected]>
OttoAllmendinger
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lcovar
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Nov 3, 2025
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This PR implements MuSig2 PSBT proprietary key-value parsing and signature
aggregation for taproot key path spending, enabling BitGo wallets to create
threshold signatures for taproot outputs using the MuSig2 protocol as
specified in BIP-327.
The implementation includes:
Additional improvements:
flexible and less duplicated test infrastructure
Issue: BTC-2652