Why Nostr? What is Njump?
2023-06-09 12:55:20
in reply to

ZmnSCPxj [ARCHIVE] on Nostr: šŸ“… Original date posted:2019-06-26 šŸ“ Original message: Good morning Stepan, and ...

šŸ“… Original date posted:2019-06-26
šŸ“ Original message:
Good morning Stepan, and Nadav,

Both additions seem good idea to me.

> - Sally generates the invoice with the preimage `S` (i.e. x-coordinate of this point to make it 32-bytes long)

Does this require Bob to attempt both positive and negative sign for the y-coordinate?
Alternately we can force Sally to always use a scalar such that generated point has a fixed sign (or some other property to derive the sign of the missing coordinate).

Regards,
ZmnSCPxj
Author Public Key
npub1g5zswf6y48f7fy90jf3tlcuwdmjn8znhzaa4vkmtxaeskca8hpss23ms3l