On: WireGuardNT, a high-performance WireGuard implementation for the Windows kernel

[pritambaral]

WireGuard seems to use symmetric key crypto for packet encdec. The card would need to sign only the handshake, which occurs "every few minutes"[1] and "is done based on time, and not based on the contents of prior packets"[1].

1: https://www.wireguard.com/protocol/