you have the cart before the horse here. modern IPS uses, and has been using, more or less the same methodology the researchers mention in their abstract (full

you have the cart before the horse here. modern IPS uses, and has been using, more or less the same methodology the researchers mention in their abstract (full disclosure: i read no further): "[. . .] fingerprints based on protocol features such as byte pattern, packet size, and server response." this technique has been around for a very long time and is no way novel. applying it to OpenVPN traffic specifically isn't either.