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Re:UDP for games – encryption and DDoS protection by eps on Thursday April 28, 2016 @02:06AM (#11586808)
> DTLS and QUIC

And, of course, the mother of all datagram encryption protocols - the IPsec suite (ESP, IKE 2). It works with IP packets, but it can be very easily repurposed for UDP.

Re:UDP for games – encryption and DDoS protection by no-bugs on Thursday April 28, 2016 @04:39AM (#11587294)
You're right, I forgot about it. But is there a ready-to-use library doing it?