Erm, part of the key quantum key setup process requires a classical channel after transmission in order to exchange information about the quantum bits which were just sent. This isn't just about some password being whispered in advance. If you're talking about some other algorithm, e.g. for general secured data transfer, could you give more specifics?
The classical exchange serves to authenticate some of the qubits that were sent, and those qubits are emphatically NOT used to generate the key. The qubits used for that purpose are not exchanged through the classical channel.
Regardless, classical crypto is about the strength of encryption, and cares little for people reading ciphertext. The quantum crypto promise is of a totally different flavour, promising physical obscurity. If its response is "well of course we can only guarantee that Eve is not intercepting once we have guaranteed that Eve is not intercepting!" then, etc.
More specifically, it guarantees that if Eve intercepts the message, you will know it, and therefore you will throw away whatever OTP you have generated without using it. Yes, this means Eve is able to completely break communication (which she could also do, for example, with an axe). What she cannot do is intercept while staying undetected.
(1) Neither of your scenarios covers the case where both the quantum and the secondary channel are created by Eve, not just the secondary channel;
Yes, they do. If Eve eavesdrop on the quantum channel, the correlations will not be there and the OTP will not be established. If the channel is created by Eve, it does not matter. If Eve completely replaces the data sent by Alice, then the correlations will not be there. There is no way to fake these correlations.
(2) How is the relationship between quantum and classical channels informed to Bob by Alice?
You mean, which channel is quantum and which is classical? That can be public knowledge.
(3) If your solution is to transport a one time pad at some earlier point "by some other means", then you're copping out twice over, as now we need another classical channel to transmit one time pads long enough for message exchanges.
There you are right. The protocol must work without being seeded first.
Why would I want a netbook, free or not? You have to have demand first before you think of price, and even at price 0, demand is not infinite (you've got to carry the thing home, find a place to stash it, etc. - there are costs involved in addition to the price).
Of course, some people will want it, others won't. Considering there are people who are happy to pay for one, they would be probably be happy to get one for free.
So no. Even for free, I wouldn't have a use for it. The whole netbook thing is pointless anyways and will soon blow over.
Overblown, maybe, but far from pointless. It's easier to carry around than a full-blown laptop and it's cheaper and easier to use for working than an iPhone.
I'm sorry, but your post was almost indecipherable gibberish.
First you say something about Americans being too insular, then you try to segue into commenting on the site's business model. These things have nothing to do with each other.
Mr BadAnalogyGuy,
Please do not log off to comment on your own posts as AC to point out how bad your analogy was. It's as obnoxious as an frenchman in Texas.
Diet food tastes like shit. The box it comes in is tastier than the contents in my opinion.
General tip: If your food comes in a box, it will taste like shit.
Eat vegetables.
Muscle weighs more. (But it looks better and takes up less space.)
It's also a lot better for your health. I always gain weight when I do serious exercise. I also gain better lung capacity, better heart capacity, I'm stronger and generally healthier. I'm also thinner. What's not to like? Why would you concentrate on the numbers on your balance?
Now, if only I could keep it up....
Always look over your shoulder because everyone is watching and plotting against you.
