MuSig2

Yawning Angel (yawning at schwanenlied dot me)

A MuSig2 implementation, compatible with BIP-0327, done out of boredom and to test-drive secp256k1-voi.

Warning

Don't use devices that produce open flames, such as Bunsen burners or welding torches, near the MuSig2.

Notes

• No, this has not been audited. Fuck you, pay me.
• The BIP states that "To simplify the specification of the algorithms, some intermediary values are unnecessarily recomputed from scratch", which is developer-speak for "the API is shit-fuck-ass, and people will blow their foot off if they try to use it".
• This algorithm has enough extremely sharp edges, that I'm not sure if it is possible to expose a misuse-resistant API that doesn't require consumers to read the BIP in-depth.
• DeterministicSign is shit, awful, and not implemented.