30 research outputs found
Trends in Detection and Characterization of Propaganda Bots
Since the revelations of interference in the 2016 US Presidential elections, the UK’s Brexit referendum, the Catalan independence vote in 2017 and numerous other major political discussions by malicious online actors and propaganda bots, there has been increasing interest in understanding how to detect and characterize such threats.We focus on some of the recent research in algorithms for detection of propaganda botnets and metrics by which their impact can be measure
Quantifying Location Privacy in Urban Next-Generation Cellular Networks
With urbanization and cellular subscribership rising sharply, cellular use in urban locales has become a normative behavior for the majority of the world’s population. As the research community pushes the limits of what is possible in the next generation cellular arena, it is prudent to simultaneously hold in tension the responsibility to provide appropriate protections to the ultimate end users of such technology. To this end, this research illustrates a location-based attack in modern cellular networks. This attack leverages control information sent over the radio access network without the benefit of encryption. We show how this attack is particularly potent in urban localization where it is important to infer location in three dimensions. We quantify the efficacy of such an attack, and therefore the associated location privacy, through simulation both in a generic cellular environment and in an environment modeled after downtown Honolulu. Our results show that accuracy on the order of 15 meters is possible
Introduction to the Minitrack on Cyber Systems: Their Science, Engineering, and Security
Proceedings of the 53rd Hawaii International Conference on System Sciences | 202
Dynamic State Determination of a Software-Defined Network via Dual Basis Representation
To maximize the performance of a softwaredefined
network, a network observer must develop a state that
can be tracked and controlled. We propose a novel method that
uses the entire eigenspace of the Laplacian matrix to determine
the state of a SDN. Our approach exploits the double
orthogonality of the Laplacian matrix in order to define the dual
basis. Each basis uses the entire reachability space with the
objective of fully describing the centrality of each node over time.
The reachability space is defined by the dual basis once the null
space has been removed. The definition of the dual basis allows
the network controller to observe the network state to determine
which areas are most utilized and least utilized. Once the state
has been estimated, the controller may choose to correct the
network state by rerouting flows or preventing additional flows
Orchestrated Autonomous Maritime Collection
Seed Research Program 2023. A Quad, describing CRUSER Seed Research Program funded research.CRUSER Funded ResearchFY23 Funded Research ProposalConsortium for Robotics and Unmanned Systems Education and Research (CRUSER
All-Domain Sensor Network Orchestration from Seabed-to-Space
NPS NRP Executive SummaryThe DoD seeks to conduct all-domain operations, requiring Intelligence Surveillance and Reconnaissance (ISR) across all domains of conflict. For the Navy, this uniquely includes the deep seabed, undersea, sea surface, air, space and cyberspace operations. All-Domain ISR encompasses and integrates information from all domains of the maritime environment, sensors and sources from seabed-to-space, to provide commanders with the most complete picture of adversary activities. This capability supports the Navy approach to Distributed Maritime Operations (DMO), an operational concept that enables widely dispersed naval units to perform sensing, command and control and weapon activities such that the distributed platforms act as a coherent whole. All-domain ISR requires a network to enable widely dispersed sensors to exchange and combine sensor data (the fusion of data) to provide a complete understanding of the operational picture, and to provide targeting information for long-range engagement required by DMO. This research studies the diverse sensor access time horizons, sensor mode options, observation feasibilities, and relative contribution of all-domain sensors (seabed-to-space) which pose a significant mathematical and computational challenge to achieve all-domain ISR. Furthermore, the delays from sensing to fusion across such a wide range of sensors can diminish the contribution of some combinations of sensing modes. The study also evaluates the distribution of fusion nodes across an all-domain network to improve the delivery of information across the network.Naval Information Warfare Center Pacific (NIWC Pacific)ASN(RDA) - Research, Development, and AcquisitionThis research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrpChief of Naval Operations (CNO)Approved for public release. Distribution is unlimited.