Good morning David,
What happens if the exchange node only sends its preimage towards the payer and
not towards the payee?
If the payer and payee do not coordinate, then it becomes possible for the
exchange node to take the funds without the payee gaining the ability to claim
the payment.
On Thu, Dec 27, 2018 at 05:43:51AM +, ZmnSCPxj via Lightning-dev wrote:
> We can try to mitigate this, but the solutions below all have significant
> drawbacks.
An alternative is to give the person making the exchange the ability to
cancel the payment if they think the exchange rate has
Good morning Lawrence,
> > On re-reading your argument, no, you have misunderstood massively.
> > The two HTLCs together form a single American Call Option, issued by the
> > exchange to the initiator of the "payment".
> > It is not the initiator somehow issuing an American Call Option to itself
On Fri, 4 Jan 2019 at 04:43, ZmnSCPxj wrote:
> > - in set reconciliation schemes: we could reconcile [channel id |
> > timestamp | checksum] first
>
> Perhaps I misunderstand how set reconciliation works, but --- if timestamp is
> changed while checksum is not, then it would still be seen
