Quantum Cryptography

[Victor Duchovni]

On Mon, Jun 25, 2007 at 08:23:14PM -0400, Greg Troxel wrote:

>  1) Do you believe the physics?  (Most people who know physics seem to.)

Yes.

>  2) Does the equipment in your lab correspond to the idealized models
>     with which the proofs for (1) were done.  (Not even close.)

Does QKD address a real-world risk at a reasonable cost without unreasonable
application constraints?

If I am very concerned about PFS for secrets that must stay secure for
decades and 521-bit ECDH is broken, yes I lose PFS. So there may be a
market for fixed direct circuits used by a small number of agencies, but
if I were a budget director I would spend the money elsewhere...

> I am most curious as to the legal issue that came up regarding QKD.

Indeed, what was the legal question that got us here?

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