Benjamin Weintraub [ARCHIVE] on Nostr: 📅 Original date posted:2022-02-15 📝 Original message: Hi all, I have a couple ...
📅 Original date posted:2022-02-15
📝 Original message:
Hi all,
I have a couple questions about the Normal Operation protocol. For the following, consider a single-hop payment between Alice and Bob over a single channel.
1) Multiple sources indicate that after Alice sends the `update_add_htlc`, she should then send the `commitment_signed`, but why is it important that she sends it first (before Bob)? As far as I understand, as long as she doesn't revoke the old state before Bob commits to the new state, there shouldn't be a problem. In that case, the order wouldn't matter---they could even send their commitments concurrently. So does the order matter?
2) After Bob sends the `update_fulfill_htlc`, both he and Alice exchange `commitment_signed` and `revoke_and_ack` messages again. Why is this necessary? After Alice receives the preimage, doesn't she have enough information to claim her funds (with the new state)?
Thanks!
Ben
--
Ben Weintraub
PhD Student
Khoury College of Computer Sciences
Northeastern University
https://ben-weintraub.com/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linuxfoundation.org/pipermail/lightning-dev/attachments/20220215/ea3c951b/attachment.html>;
📝 Original message:
Hi all,
I have a couple questions about the Normal Operation protocol. For the following, consider a single-hop payment between Alice and Bob over a single channel.
1) Multiple sources indicate that after Alice sends the `update_add_htlc`, she should then send the `commitment_signed`, but why is it important that she sends it first (before Bob)? As far as I understand, as long as she doesn't revoke the old state before Bob commits to the new state, there shouldn't be a problem. In that case, the order wouldn't matter---they could even send their commitments concurrently. So does the order matter?
2) After Bob sends the `update_fulfill_htlc`, both he and Alice exchange `commitment_signed` and `revoke_and_ack` messages again. Why is this necessary? After Alice receives the preimage, doesn't she have enough information to claim her funds (with the new state)?
Thanks!
Ben
--
Ben Weintraub
PhD Student
Khoury College of Computer Sciences
Northeastern University
https://ben-weintraub.com/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linuxfoundation.org/pipermail/lightning-dev/attachments/20220215/ea3c951b/attachment.html>;