ark-musig2-signing

This Skill implements the MuSig2 distributed signing protocol for Ark transaction trees, handling nonce generation, aggregation, and partial signature creation across a two-round protocol for secure multi-party Schnorr signatures.

The MuSig2 two-round protocol for Schnorr signatures is a multi-party signing process where individual signers generate nonces and create partial signatures, which a coordinator then combines into a single valid signature without exposing private keys.

Yes, you can use Go and PSBT integration for collaborative Ark transaction signing, as this Skill provides specific session types and code patterns to manage tree-wide signing and coordinate partial signatures within the Go ecosystem.

A coordinator combines partial signatures in a distributed signing session by aggregating the nonces and signature parts received from individual signers to produce a single valid multi-party Schnorr signature for the transaction tree.

You need distributed signing for Ark transactions when multiple parties must authorize a transaction collaboratively, eliminating the need for a single trusted party to hold all private keys and ensuring the transaction remains valid and auditable.