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/
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