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Support for multi-sig/threshold signature scheme #91
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Jubjub or BLS or some zk thing? If JubJub then Schnorr multi-sigs require three round trips between all signers. I've included references with the schnorrkel musig implementation on Ristretto https://github.com/w3f/schnorrkel/blob/master/src/musig.rs but you'd want need Ristretto for JubJub or to address the cofactor. We'll eventually devise some two round trip variant of mBCJ w3f/schnorrkel#15 but not actually working much on that right now. It's dangerous to use BLS for accounts for a few reasons, like HDKD breaks BLS with typical malleability. |
It would be jubjub. The scheme might be the following and I'm actively researching on it. I actually intended to implement Ristretto for jubjub in a different context, so your information is helpful! Thank you so much. |
You might find https://github.com/w3f/schnorrkel/blob/master/src/musig.rs useful then since it already expresses the musig protocol in session types. |
It would be a group-based style. Public group key is used as an accountId.
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