func _UncompressPubkey(pubkey []byte) []byte {
if _VerifyPubkey(pubkey) != 1 {
log.Panic("cannot uncompress invalid pubkey")
return nil
}
var pub_xy secp.XY
err := pub_xy.ParsePubkey(pubkey)
if err == false {
log.Panic("ERROR: impossible, pubkey parse fail")
}
var pubkey2 []byte = pub_xy.BytesUncompressed() //uncompressed
if pubkey2 == nil {
log.Panic("ERROR: pubkey, uncompression fail")
return nil
}
return pubkey2
}
