--- Log opened Sun Mar 13 00:00:26 2022
10:50 < jeremyrubin> i'm trying to implemen t lloyd's DLC ctv construct w/ taproot and I'm struggling a bit with the XONLY API for things... 
10:50 < jeremyrubin> for the protocol you need to add 1 to a base key repeatedly 
10:50 < jeremyrubin> (which is an XOnly)
10:51 < jeremyrubin> and then also use a combine to add two keys together directly
10:51 < jeremyrubin> it seems there is not an API for adding XOnly's together?
10:52 < jeremyrubin> Would the right thing to do be to use the PublicKey and then do to_x_only later?
10:52 < jeremyrubin> (have to afk for now, woops, will be back later)
10:56 < andytoshi> there is no "right way" to implement a novel crypto protocol using only the rust-secp public API, which is designed to make this hard to do
10:57 < andytoshi> but yes, avoiding xonly til the last moment will probably be the best way to do it
10:57 < andytoshi> and using the combine_key method, which we accidentally added and then couldn't remove due to people immediately rolling their own crypto with it..
10:58 < andytoshi> but i would suggest that adding 1 repeatedly does not sound very efficient .. if you need to grind through keys deterministically it would be better to double repeatedly and/or use the endomorphism optimization
14:47 < jeremyrubin> andytoshi: the thing you want to compute is X + iG for i = 1...N which represents the N different prices the DLC can be at
14:48 < jeremyrubin> it would be nice to have some form of rust-secp in between ffi::* and "no footguns"
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--- Log closed Mon Mar 14 00:00:26 2022