NDLI: Security in Quantum Networks as an Optimization Problem

Content Provider	IEEE Xplore Digital Library
Author	Rass, S. Schartner, P.
Copyright Year	2009
Abstract	We present a general framework for casting the problem of designing secure quantum networks into a classical optimization problem. We introduce a measure of risk that serves as upper bound on the probability of loosing a message to the adversary. Based on this results, we can transform the problem of secure network design into an optimization procedure, which opens the field for the entire framework of optimization theory to tackle the problem most efficiently. The latter is particularly appealing, since we prove the problem to be NP-hard in general. Our methodology is formulated to yield results that have interpretations in probabilistic terms, but can be generalized to other settings in a straightforward manner. The modeling approach is simple, and naturally accounts for different notions of security, depending on the situation at hand. Furthermore, our results are not limited to security in quantum networks, as we rely on quantum cryptography only to the extent of securing links. Hence, the analysis is equally applicable for any (multipath) transmission setup, where information-theoretic security is demanded.
Starting Page	493
Ending Page	498
File Size	288108
Page Count	6
File Format	PDF
ISBN	9781424435722
DOI	10.1109/ARES.2009.84
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-03-16
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Costs Quantum Cryptography Network Design Encoding Optimization Design optimization Information analysis Casting Upper bound Information security Cryptography Informatics
Content Type	Text
Resource Type	Article

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