Should Curve25519 keys be validated?
https://research.kudelskisecurity.com/2017/04/25/should-ecdh-keys-be-validated/ [research.kudelskisecurity.com]
2017-04-25 21:53
Maybe, maybe not.
And: https://vnhacker.blogspot.com/2017/04/testing-ecdh-and-ecdsa.html
source: solar