Subnostr

that thing is totally stupid though because that's how BIP-340 works, all the keys are even numbered, so the 2 is there implicitly, it is the second parameter, which only says if the point is negative or positive, it is the Y coordinate iirc, you may have seen "x-only pubkey" somewhere, that's what it means

the way it works is when you make a secret key, you derive the pubkey, if it is negative (would have a 03 prefix in hex 33 byte standard version) then you invert the secret key and it makes the key even and 02 and then you can do standard operations without needing that extra stupid bit

cloud fodder 1y ago

ah, yep i was trying to understand why it kept saying x of pubkey was not on the curve.. then adding "02" to make it work.. yeah lol, the stuff is a bit beyond me im just trying to use the encryption not be a cryptographer. cool that you understand this stuff. 😎 go-nostr was nice enough to just use the damn keys 😅

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ᴛʜᴇ ᴅᴇᴀᴛʜ ᴏꜰ ᴍʟᴇᴋᴜ 1y ago

i did not expect it to be so retarded it expected the fucking sign byte prefix to do its stuff, i specifically have written all kinds of code to avoid that necessity in all my BIP-340 schnorr signature code

it's unfriendly code, and whoever wrote it wosn't thinking about anyone else using it