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Real-Time Access Control Rule Fault Detection Using a Simulated Logic Circuit
Access control (AC) policies can be implemented based on different AC models, which are fundamentally composed by semantically independent AC rules in expressions of privilege assignments described by attributes of subjects/attributes, actions, objects
IT Risks
Risk management is a common phrase when managing information, from the CISO to the programmer. We acknowledge that risk management is the identification, assessment and prioritization of risks and reflects how we manage uncertainty. These are some areas of
The Importance of Entropy to Information Security
The strength of cryptographic keys is an active challenge in academic research and industrial practice. In this paper we discuss the entropy as fundamentally important concept for generating hard-to-guess, i.e., strong, cryptographic keys and outline the
A four-pixel single-photon pulse-position array fabricated from WSi superconducting nanowire single- photon detectors
We demonstrate a scalable readout scheme for an infrared single-photon pulse-position camera consisting of WSi superconducting nanowire single-photon detectors. For an N × N array, only 2 × N wires are required to obtain the position of a detection event
Estimation of uncertainty in application profiles
Application profiling tools are the instruments used to measure software performance at the function and application levels. The most powerful measurement method available in application profiling tools today is sampling-based profiling, where a
The Importance of Entropy to Information Security
Software Testing
IT Risks
Real-Time Access Control Rule Fault Detection Using a Simulated Logic Circuit
Dynamic Spectrum Access: Current State of the Art and Future Challenges
Dynamic Spectrum Access (DSA) is emerging as a promising technology to mitigate the spectrum scarcity caused by static frequency allocations. Despite the clear need for more efficient allocation, however, DSA faces a number of challenges, chief among them
k-Zero Day Safety: A Network Security Metric for Measuring the Risk of Unknown Vulnerabilities
By enabling a direct comparison of different security solutions with respect to their relative effectiveness, a network security metric may provide quantifiable evidences to assist security practitioners in securing computer networks. However, research on
k-Zero Day Safety: A Network Security Metric for Measuring the Risk of Unknown Vulnerabilities
Analysis for Dynamic Metrology
Diverse measurement contexts require estimates of time varying quantities. Ideally the measurement device responds to signal variations significantly more rapidly than the modulation of the signal itself. If so, then well-developed techniques may be used
The neural representation of faces and bodies in motion and at rest
The neural organization of person processing relies on brain regions functionally selective for faces or bodies, with a subset of these regions preferring moving stimuli. Although the response properties of the individual areas are well established, less
Optimal Spread in Network Consensus Models
Suppose we seek a set of nodes in a network that will enable the fastest spread of information in a decentralized communication environment. If communication resources are limited there are constraints on the number of nodes that can be selected. In this
IREX IV: Part 2 Compression Profiles for Iris Image Compression
The IREX IV evaluation builds upon IREX III as a performance test of one-to-many iris recognition. This report is the second part of the IREX IV evaluation, which specifically, evaluates the ability of automated iris recognition algorithms to match heavily
Guide to Attribute Based Access Control (ABAC) Definition and Considerations
Security and Privacy Controls for Federal Information Systems and Organizations [including updates as of 1/15/2014]
[Superseded by NIST SP 800-53 Rev. 4(April 2013 w/ updates through 1/22/15): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917904 ] This publication provides a catalog of security and privacy controls for federal information systems and
Security and Privacy Controls for Federal Information Systems and Organizations
Development of a broadband NbTiN traveling wave parametric amplifier for MKID readout
The sensitivity of microwave kinetic inductance detectors (MKIDs) using dissipation readout is limited by the noise temperature of the cryogenic amplifier, usually a HEMT with T n ∼5 K. A lower noise amplifier is required to improve NEP and reach the
Building one-time memories from isolated qubits
One-time memories (OTM's) are a simple type of tamper-resistant cryptographic hardware, that can be used to implement many forms of secure computation, such as one-time programs. Here we investigate the possibility of building OTM's using "isolated qubits"
Greedy Backpressure Routing for Smart Grid Sensor Networks
In this paper, a greedy backpressure routing protocol is proposed for multigate mesh networks. This protocol evaluates the greedy backpressure metric (GBM) value of mesh points and routes packets in the direction of the steepest gradient. The GBM value is
A Profile of the Key Management Framework for the Federal Government
The Computer Security Division within ITL has recently provided a draft of Special Publication (SP) 800-152, A Profile for U. S. Federal Cryptographic Key Management Systems, for public comment. NIST SP 800-152 is based on NIST SP 800-130, A Framework for
A Profile of the Key Management Framework for the Federal Government
Feature Measures for the Segmentation of Neuronal Membrane using Machine Learning Algorithm
In this paper, we present a Support Vector Machine (SVM) based pixel classifier for a semi-automated segmentation algorithm to detect neuronal membrane structures in stacks of electron microscopy images of brain tissue samples. This algorithm uses high-
A New Standard for Securing Media-Independent Handover: IEEE 802.21a
When enabling handover between different radio interfaces (e.g., handover from 3G to Wi-Fi), reducing network access authentication latency and securing handover related signaling messages are major challenging problems, amongst many others. The IEEE 802
A New Standard for Securing Media-Independent Handover: IEEE 802.21a
The Detection of Neuronal Structures using a Patch-based Multi-features and Support Vector Machines Learning Algorithm
In this research, we present an (semi-) automated segmentation algo-rithm using a Support Vector Machine classifier. This algorithm uses a high-dimensional feature space generated from patch-based multiple-features and a training dataset in order to detect
The National Vulnerability Database (NVD): Overview
The National Vulnerability Database (NVD), and its companion, the National Checklist Program (NCP), have provided a valuable and flexible set of services to users around the world since NVD was established in 2005. The NVD was established to provide a U.S
The National Vulnerability Database (NVD): Overview