Reply to Comment on "Exposed-key weakness of $αη$"

Details Reply to Comment on "Exposed-key weakness of $αη$" Reply to Comment on "Exposed-key weakness of $αη$"

2008-09-13

arxiv.org/abs/0809.2311v1

Physics

Quantum Physics

4 pages, 1 figure; to appear in Phys. Lett. A

Scientific paper

We address criticism of the Letter "Exposed-Key Weakness of $\alpha \eta$" in the Comment by Nair and Yuen. The Comment claims that the Letter does not show insecurity of $\alpha \eta$ because our approximation for the eavesdropper's entropy on the encrypted key is invalid. We present simulations which show that, on the contrary, our estimate is in close agreement with numerical calculations of the actual entropy over the applicable domain. We additionally discuss some ways in which our views on security requirements differ from the views given in the Comment.

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