[ExI] Quantum Entanglement (was: simulation)

Eugen Leitl eugen at leitl.org
Tue Dec 18 11:02:12 UTC 2007


On Mon, Dec 17, 2007 at 05:51:08PM -0500, John K Clark wrote:

> So you can't use quantum entanglement to send messages faster than light,
> but you can use it to encrypt messages in a code as secure as the laws of

That's a pretty weak sort of security, I'm afraid. Also, QC is crypto
snake oil:

	http://www.schneier.com/blog/archives/2005/12/snakeoil_resear.html
	http://www.google.com/search?&q=quantum+cryptography+snake+oil

It (maybe) solves a non-problem, badly, and for a hefty price.

> physics. Or you could say that you can send information faster than light
> but the message is encoded and the key to decode it can only be sent
> slower than light.

-- 
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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