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22 lines
1.2 KiB
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22 lines
1.2 KiB
Plaintext
Chapter overview:
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* introduce multi-hop HTLC forwarding + onion routing at a lower level
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Relevant questions to answer:
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* Onion Routing:
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* What is onion routing? What security guarantees does it offer?
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* What is the Sphinx format? How does it differ from prior mixnet packet formats?
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* How does DH randomization work? (possibly too low-level)
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* Why is it important to keep the packet fixed sized at all times?
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* What routing information is contained in the payload for an node?
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* How can the routing information be extended in the future?
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* HTLC Forwarding:
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* How does a node gain fees when it forwards a payment?
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* What is the "cltv delta" why does it matter?
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* What does a successful HTLC forwarding look like?
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* How can a node cancel back an HTLC off-chain?
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* What is a typical network switch/hub? How can a similar analogy be applied to forwarding HTLCs?
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* What is the circuit map, why does a node need to maintain this?
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* Can fails or settles be safely pipelined on the network?
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* How does a node send an error back to the sender without knowing who they are?
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* What dangers exist w.r.t time-locks and timely on-chain confirmation?
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