Physics – Quantum Physics
Scientific paper
2010-10-31
Physics
Quantum Physics
We have to withdraw our earlier claim because errors have been identified in the calculation and computer simulations. However
Scientific paper
We deterministically crack the secure, statistical key exchange protocol based on feedback proposed by Pao-Lo Liu [ J. Lightwave Techology 27 (2009) pp. 5230-34]. The crack is ultimate and absolute because it works under idealized conditions, and produces much higher data visibility for the eavesdropper than the protocol provides for Alice and Bob. Even with the most idealistic driving noise spectrum stated by Liu, during the most secure phase of the protocol, far away from the transients, where the system is already in its most secure steady-state, the eavesdropper has 100% success rate in identifying the key bits, at the same time when Alice and Bob have less than 100% success rate while using the Liu protocol. No statistics is needed, Eve can extract the secure bit from two samples of the signal in the two direction. Thus the Liu-protocol offers no security against the attack described in this paper.
Gingl Zoltan
Kish Laszlo B.
No associations
LandOfFree
Ultimate crack and lack of any security in the statistical key exchange protocol with random signals and feedback does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Ultimate crack and lack of any security in the statistical key exchange protocol with random signals and feedback, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultimate crack and lack of any security in the statistical key exchange protocol with random signals and feedback will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-663856