On Tue, Jun 20, 2023 at 6:17 AM Thomas Voegtlin
wrote:
>
>
> We have not implemented BOLT-12 yet in Electrum. Would you care to
> describe whether bundled payments already would work with the current
> specification, or whether they would require changes to BOLT-12? We
> are going to implement BO
On 6/20/23 1:45 AM, Thomas Voegtlin wrote:
- snip -
We have not implemented BOLT-12 yet in Electrum. Would you care to
describe whether bundled payments already would work with the current
specification, or whether they would require changes to BOLT-12?
They will not as-specified, but becau
Hi Thomas, Bastien, and list,
One point I would like to stress for this idea, is that there are potentially
three different entities at play in these payments.
This might not be obvious at first glance especially for the submarine swap
example, where people expect just two entities: the user ("c
Hi Thomas,
> I believe pre-payment of the mining fee can be combined with 0-conf;
> I am not sure why you picture them as opposed? Even with BOLT-12, I
> don't see 0-conf going away.
Sorry if that was unclear, that's not at all what I meant. What I meant
is that if we *stopped* using 0-conf for s
Hello Bastien,
Thank you for the clarification; indeed I might not have been clear
about the fact that senders need to understand the new fields.
What you are suggesting (solution 2, blacklisting non-cooperative
clients and playing with the mempool) is prone to griefing attacks and
it requires m
Hello Dave,
That is an interesting idea; it would indeed save space for the prepayment hash.
I think the invoice would still need a feature bit, so that the receiver can
decide to make prepayment optional or required.
Note that for the feature to be optional, we need to subtract the prepayment
a
Hi calle,
Thanks for the report.
>From my understanding of what you're describing, the attack is possible
because LNBits backend does not check that an external received HTLC
`amount_msat` satisfies the invoice amount for both matching preimage and
payment secret. This sounds plausible to me.
If
On 2023-06-12 22:10, Thomas Voegtlin wrote:
The semantics of bundled payments is as follows:
- 1. the BOLT-11 invoice contains two preimages and two amounts:
prepayment and main payment.
- 2. the receiver should wait until all the HTLCs of both payments
have arrived, before they fulfill the HTL
