Securing Emerging Wireless Systems: Lower-layer Approaches by Yingying Chen, Wenyuan Xu, Wade Trappe, YanYong Zhang

By Yingying Chen, Wenyuan Xu, Wade Trappe, YanYong Zhang

Securing rising instant platforms: Lower-layer methods goals to fill a turning out to be desire within the examine neighborhood for a reference that describes the lower-layer methods as a starting place in the direction of safe and trustworthy instant platforms. while many of the references in general handle cryptographic assaults by utilizing traditional "network defense" approches for securing instant platforms, the proposed booklet should be differentiated from the remainder of the marketplace through its specialise in non-cryptographic assaults that can't simply be addressed through the use of conventional equipment, and additional through offering a suite of safeguard mechanisms that function on the lower-layers of the protocol stack and will guard instant structures earlier than the consequences of assaults propagate as much as higher-level purposes and companies. The publication will specialise in primary defense difficulties that contain homes certain to instant structures, reminiscent of the features of radio propagation, or the site of speaking entities, or the houses of the medium entry keep an eye on layer. particularly, the e-book offers detection mechanisms and highlights security innovations that focus on threats to instant localization infrastructure, assaults on instant networks that make the most entity identification (i.e. spoofing attacks), jamming and radio interference that could undermine the supply of instant communications, and privateness threats the place an adversary seeks to deduce spatial and temporal contextual info surrounding instant communications. also, the authors discover new paradigms of actual layer defense for instant platforms, that can help authentication and confidentiality prone through exploiting fading houses designated to instant communications.

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Although there are many different and more complex signal strength attack methods that can be used, we believe their effects will not vary much from the linear signal strength attack model we use in this chapter, and note that such sophisticated attacks could involve much higher cost to perform. 4 Measuring Attack Susceptibility The aim of a localization attack is to perturb a set of signal strength readings in order to have an effect on the localization output. When selecting a localization algorithm, it is desirable to have a set of metrics by which we can quantify how susceptible a localization algorithm is to varying levels of attack by an adversary.

Area Based Probability ABP-α Bayes rule matching of the RSS to an area probabilistically bounded by the confidence level α%. BN Returns the most likely area using a Bayesian network approach. RADAR R1 Returns the closest record in the Euclidean distance of signal space. Averaged RADAR R2 Returns the average of the top 2 closest records in the signal map. Gridded RADAR GR Applies RADAR using an interpolated grid signal map. Highest Probability P1 Applies maximum likelihood estimation to the received signal.

Precision of the answer p • Precision vs. Perturbation Distance: The perturbation distance ˜ med . The precision vs. perturbation distance is the quantity pmed − p metric depicts the functional dependency between precision and increased perturbation distance. • H¨ older Metrics: In addition to error performance, we are interested in how dramatically the returned results can be perturbed by an attack. Thus, we wish to relate the magnitude of the perturbation s − ˜s to its effect on the localization result, which is measured by Galg (s) − Galg (˜s) .

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