n-bit cryptography will be a thing of the past soon.
- Thread starter PC-Engine
- Start date
It just sounds to me like they made a better laser/detector for fiber optic communications. I'm not sure why/how they managed to tie this into some kind of ultra-secure transmission that doesn't exist inherintly in any fiber optic network. Moreso, I don't see how you can construe it as possibly making current encryption algorigthms obsolete. That is, of course, unless you believe the entire world is ready to throw away all of their Cat5 and WiFi networking infrastructures and implement fiber optics everywhere.
It would of course not be useful for STORING data, just for transferring it from A to B... Traditional cryptography will still have to be used for things like fixed/portable media, smartcards etc etc.
Crusher said:
Actually, it's not the "single-photon transmission" thing makes current encryption systems obsolete, it's the quantum computing. This "single-photon transmission" is for quantum cryptography, which is (in theory) immune to eavesdropping.
However, just like you stated, it is not going to replace everyday communication system. To be completely secure, it must be point-to-point for each party, and remain in connection for all time. IMHO such system is practical only for governments and large corporations. There are rumors about CIA or some government departments already deployed similar system in some places.
In theory you could entangle radio wave photons I guess 
nah what I'm hoping for is quatum networks entangle two electrons or something and the spliting them apart ( as in moving the entangle pair away from each other ) so you have instant teleportation of data across the universe of course the only problem is if you loose the entangled state your going to probably have to physically move one of the devices to other one so you can do a resync. Of course their could be something in quatum mechanics that says this doesn't work but know one understands quantum mechnaics totally let alone poor little old me.
nah what I'm hoping for is quatum networks entangle two electrons or something and the spliting them apart ( as in moving the entangle pair away from each other ) so you have instant teleportation of data across the universe of course the only problem is if you loose the entangled state your going to probably have to physically move one of the devices to other one so you can do a resync. Of course their could be something in quatum mechanics that says this doesn't work but know one understands quantum mechnaics totally let alone poor little old me.No information can be "teleported" this way, unfortunately, since you can't control how the quantum state collapses. All you know is the pairs will have opposite states, but you already know that. This is what I understand (not I am good at quantum physics, though )
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