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Article overview
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Cracking the Liu key exchange protocol in its most secure state | | Lazar L. Kish
; Bruce Zhang
; Laszlo B. Kish
; | | Date: |
5 Oct 2009 | | Abstract: | We fully crack the Liu’s cypher based on random signals and feedback [P.-L.
Liu, Physics Letters A 373 (2009) 3207-3211], in its most secure state. We
utilize the natural properties of the velocity autocorrelation functions of
relevant noises. Our method to extract information by Eve is much more
efficient than the originally proposed way of key exchange by Liu. Therefore,
Alice and Bob must use this new method to communicate, otherwise Eve has more
information than they do, and that means that Eve has exactly the same amount
of information as they have. The Liu key exchange protocol has zero security
against this attack. | | Source: | arXiv, 0910.0665 | | Services: | Forum | Review | PDF | Favorites | |
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