Hi All, To better understand how the eltoo update scheme ( https://blockstream.com/eltoo.pdf ) works in practice I implemented eltoo in the Bitcoin functional test framework. These simulations exercise a concrete implementation of the eltoo Bitcoin scripts and explore the data flow between nodes that use eltoo to update their channel state.
My motivation for creating these tests is to have a framework for both understanding and refining the Bitcoin scripts and message passing protocol for eltoo. I’d love to hear what people think of my initial implementation. This simulation uses a fork of Bitcoin with cdecker’s SIGHASH_NOINPUT patch applied to the signet2 fork fjahr created with patches applied for signet (kallewoof), taproot (sipa) and anyprevout* (ajtowns). https://github.com/remyers/signet2/blob/eltoo/test/functional/simulate_eltoo.py Next steps: - add bidirectional channel updates - derive public keys for settle transactions from a pre-shared basepoint Does anyone know of any other eltoo implementations? I’d love to compare notes and get the ball rolling on a detailed specification. Special thanks to the Chaincode Summer Residency and Christian Decker for their helpful advice and encouragement while I worked on this project. -- Richard
_______________________________________________ Lightning-dev mailing list Lightning-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev
