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Magister Michael Dilger M.Sc. | 3 months ago (raw) | root | parent | reply | flag 
 BIP-340 specifies choosing the 02.  Look at the section "Implicit Y coordinates"
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mleku | 3 months ago (raw) | root | parent | reply | flag 
 so using code that doesn't check for it is wrong

go read some source code of nostr libraries again with regard to key generation

i'm not gonna pretend i checked the javascript or rust libraries, as i hate both of these languages but the Go libraries DO NOT CHECK

just write a short piece of code generating new keys and then use two of them to make an ECDH key both ways

then you'll know if the library is doing it right