> Another idea: would it be useful to split up large data (several megabytes long) and FEC-encode it in chunks (with each chunk having a separate MAC)?
I think it's a great idea. Ideally we want to do error correction and check MAC before decryption, so for large data it makes a lot of sense to split it into smaller chunks and MAC each of them. Then the receiver should use error correction to deal with errors, check MAC of the chunk and *only then* decrypt it. But it depends on the application and communication channel, so I would leave these details to the app developers. P.S. It would be nice to have this proposal and other interesting ideas from the mailing list in some kind of guidelines for different lightning use-cases, but I feel like BOLTs repo is the wrong place to put it. Could we organize some kind of lightning-guidelines repo for lapp developers? I think it would be very useful. Regards, Stepan.
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