How the layers of Lightning Fit Together
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- 1.How would an offline vending machine work?
- 1.How does the LN-Penalty mechanism currently leak out of the update layer?
- 1.What factors should be considered before opening a Lightning channel with a peer?
- 1.How would switching to PTLCs affect the update layer?
- 2.If LN were to upgrade the update layer, would the network need to end-to-end upgrade?
- 3.Why are the second stage HTLC transactions not part of the commitment transaction?
- 1.Explain how the timeout mechanism works for in-flight HTLCs?
- 2.How is the payment hash sent to the payer?
- 3.Can both HTLCs and PTLCs coexist in a channel?
- 4.What's are the required parts of invoices?
- 1.How can nodes that are not always online prevent loss of funds?
- 2.What are the risks of forwarding below-dust payments?
- 3.What is the relationship of the revocation keys for multiple subsequent commitment transactions? What would change if revocation keys were independent?
- 4.How can you send a payment to a node without getting an invoice? What are the tradeoffs of this payment method?
- 5.Why is a grace period added to the HTLC timeout?
- 6.What are routing hints and why are they important for private channels? Do they leak privacy?
- 1.What is a Diffie-Hellman key exchange used for?
- 1.What's the difference between a MAC and an HMAC?
- 2.Where are HMAC and MAC implemented in lightning and why?
Last modified 4mo ago