QKD is snake oil. It rears its head once in a while. Wake me when quantum crypto provides authentication, on an end-to-end basis, and without having to use ex

QKD is snake oil. It rears its head once in a while. Wake me when quantum crypto provides authentication, on an end-to-end basis, and without having to use expensive kit. Until then, merely doing key exchange and encryption is not enough and is pointless because a) it's point-to-point rather than end-to-end, b) we already have superior classical technology that does authentication, key exchange, and encryption w/ integrity protection, all for very cheap and more than secure enough.