The number of items that a person can hold simultaneously in their working memory is known to be related to the ability to understand and solve complex problems.(See Working Memory Capacity)
It'd be silly to think that with the ability to keep more of the relevant details in working memory one wouldn't be much more likely to find a connection. To make a machine analogy, there is an exponential increase in possible configurations that can be represented and analyzed by adding another register. While the brain is not a computer and is really quite mysterious, I don't see how the benefits could be much different.
The one-time pad requires a shared-secret key in order to be able to encode and decode encrypted messages. Sharing the key securely becomes a huge logistical problem.
Quantum cryptography promises, through quantum theory, that anyone trying to skim data from a secure channel ultimately corrupts it. So by measuring the noise level in the channel you can detect an eavesdropper.
A typical Quantum cryptography scheme requires two channels. One of the channels is a classical channel, like the internet, which is used to exchange the encrypted message. The other is a low noise quantum channel, which is capable of exchanging some kind of physical entity with information about the key encoded in its configuration. An example of such a physical entity would be a collection of polarized photons.
The rough idea is that you exchange the key over the quantum channel. If while doing that your "noise level" rises beyond a certain threshold, you abort the transmission. Otherwise the key to your OTP is now shared and you transmit your encrypted message over the classical channel.
I didn't miss your point, science isn't provably true and quantum mechanics may someday turn out to be wrong, exposing a loophole which allows for eavesdropping. But quantum cryptography isn't as much of a cryptography scheme as it is a transmission vehicle.
Still, if you want to find a flaw with quantum cryptography, you don't have to look very hard. Quantum cryptography assumes that your man in middle just wants to read data out of the channel without breaking the link. It is easily defeated if someone can make themselves into a relay.
i.e. Quantum cryptography is defeated if an eavesdropper cuts both the quantum and classical channels and inserts herself into the middle:
Sender ===>>=== Attacker ===>>== Receiver
where she pretends to be the receiver to the sender and rebroadcasts the message as if she were the sender to the receiver.
Slashdot Mirror
I understand they're trying to work against root kits...
I think what they're actually worried about are shoddy drivers giving up the BSOD and tarnishing their brand in the process.
The number of items that a person can hold simultaneously in their working memory is known to be related to the ability to understand and solve complex problems.(See Working Memory Capacity)
It'd be silly to think that with the ability to keep more of the relevant details in working memory one wouldn't be much more likely to find a connection. To make a machine analogy, there is an exponential increase in possible configurations that can be represented and analyzed by adding another register. While the brain is not a computer and is really quite mysterious, I don't see how the benefits could be much different.
The one-time pad requires a shared-secret key in order to be able to encode and decode encrypted messages. Sharing the key securely becomes a huge logistical problem.
Quantum cryptography promises, through quantum theory, that anyone trying to skim data from a secure channel ultimately corrupts it. So by measuring the noise level in the channel you can detect an eavesdropper.
A typical Quantum cryptography scheme requires two channels. One of the channels is a classical channel, like the internet, which is used to exchange the encrypted message. The other is a low noise quantum channel, which is capable of exchanging some kind of physical entity with information about the key encoded in its configuration. An example of such a physical entity would be a collection of polarized photons.
The rough idea is that you exchange the key over the quantum channel. If while doing that your "noise level" rises beyond a certain threshold, you abort the transmission. Otherwise the key to your OTP is now shared and you transmit your encrypted message over the classical channel.
I didn't miss your point, science isn't provably true and quantum mechanics may someday turn out to be wrong, exposing a loophole which allows for eavesdropping. But quantum cryptography isn't as much of a cryptography scheme as it is a transmission vehicle.
Still, if you want to find a flaw with quantum cryptography, you don't have to look very hard. Quantum cryptography assumes that your man in middle just wants to read data out of the channel without breaking the link. It is easily defeated if someone can make themselves into a relay.
i.e. Quantum cryptography is defeated if an eavesdropper cuts both the quantum and classical channels and inserts herself into the middle:
Sender ===>>=== Attacker ===>>== Receiver
where she pretends to be the receiver to the sender and rebroadcasts the message as if she were the sender to the receiver.