define a function to tell if a QUIC version uses the TLS 1.3 handshake

internal/crypto/null_aead.go

@@ -4,7 +4,7 @@ import "github.com/lucas-clemente/quic-go/internal/protocol"
 
 // NewNullAEAD creates a NullAEAD
 func NewNullAEAD(p protocol.Perspective, v protocol.VersionNumber) AEAD {
-	if v == protocol.VersionTLS {
+	if v.UsesTLS() {
 		return &nullAEADFNV64a{}
 	}
 	return &nullAEADFNV128a{