Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1865908 | Physics Letters A | 2008 | 6 Pages |
Abstract
We show that the insecurity claim of the αη cryptosystem made by C. Ahn and K. Birnbaum in [C. Ahn, K. Birnbaum, Phys. Lett. A 370 (2007) 131] under heterodyne attack is based on invalid extrapolations of Shannon's random cipher analysis and on an invalid statistical independence assumption. We show, both for standard ciphers and αη, that expressions of the kind given by Ahn and Birnbaum can at best be interpreted as security lower bounds.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Ranjith Nair, Horace P. Yuen,