" Welcome to the Quantum Internet" - By Davide Castelvecch
Robert J. Hansen
rjh at sixdemonbag.org
Fri Aug 22 15:42:04 CEST 2008
Charly Avital wrote:
> "Quantum encryption is here, but the laws of physics can do much more
> than protect privacy".
There are no quantum encryption algorithms. None.
What we have is quantum key exchange, where you use a handful of qubits
to negotiate a random session key in a way that an eavesdropped cannot
listen in on the transaction. If you're willing to burn up a _lot_ of
qubits, you can turn this into the one-time pad. But either way, all
you're doing is transferring key material in a way that can't be
eavesdropped upon -- nothing more.
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