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Word-synchronous linear optical sampling of 40 Gb/s QPSK signals
We demonstrate word-synchronous measurements of QPSK format 40 Gb/s PRBS signals using linear optical sampling with a precision time-base, which allows us to average waveforms and distinguish between signal distortion and noise in eye diagrams.
Information Security Training Requirements: A Role- and Performance-Based Model
Performance Comparisons of BGP Anomaly Detection and Robustness Algorithms
Computer Security Division 2008 Annual Report
This annual report covers the work conducted within the National Institute of Standards and Technology's Computer Security Division during Fiscal Year 2008. It discusses all projects and programs within the Division, staff highlights, and publications.
Computer Security Division 2008 Annual Report
Local Thickness and Anisotropy Approaches to Characterize Pore Size Distribution of 3D Porous Networks
We have proposed a superseding algorithm approach for image analysis of the pore size distribution (PSD) of porous media. This approach adapts the intrinsic definition of skeletonization for an object representation to the characterization of the PSD, and
Static Analyzers in Software Engineering
Static analyzers can report possible problems in code and help reinforce good practices of developers. We contrast the strengths of static analyzers with testing and indicate the current state of the art.
Performance Metrics for IEEE 802.21 Media Independent Handover (MIH) Signaling
The IEEE 802.21 Media Independent Handover (MIH) working group is developing a set of mechanisms to facilitate migration of mobile users between access networks that use different link-layer technologies. Among these are mobility managers that create and
Measurements of Metamaterial-Inspired, Electrically Small Antenna Systems
The paper discusses the analysis and measurements of electrical small antennas. The antennas discussed here are based on antenna designed from metamaterial inspired concepts. An electromagnetic reverberation chamber is used for the test of the antennas. A
Information Security Training Requirements: A Role- and performance-Based Model (Draft)
This document and NIST Special Publication 800-50, Building an Information Technology Security Awareness and Training Program describe the following key approaches of an information security awareness and training program that federal departments and
Using Personal Identity Verification (PIV) Credentials in Physical Access Control Systems (PACS)
This bulletin summarizes information disseminated in NIST Special Publication (SP) 800-116, A Recommendation for the Use of PIV Credentials in Physical Access Control Systems (PACS), written by William MacGregor of NIST, Ketan Mehta of Mehta, Inc., and
Using Personal Identity Verification (Piv) Credentials in Physical Access Control Systems (PACS)
Recommendation for Applications Using Approved Hash Algorithms
[Superseded by SP 800-107 Rev. 1 (August 2012): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911479 ] Cryptographic hash functions that compute a fixed- length message digest from arbitrary length messages are widely used for many purposes
Randomized Hashing for Digital Signatures
NIST-approved digital signature algorithms require the use of an approved cryptographic hash function in the generation and verification of signatures. Approved cryptographic hash functions and digital signature algorithms can be found in FIPS 180-3
Recommendation for Applications Using Approved Hash Algorithms
Randomized Hashing for Digital Signatures
2039: A Day in the Life of a Usability Engineer
As we approach the end of the fourth decade of the twenty-first century, intelligent agents will handle most of the time-consuming drudge work of usability engineering, freeing usability engineers (UEs) to focus on the mental work of analysis and usability
Common Biometric Exchange Formats Framework Standardization
Common Biometric Exchange Formats Framework (CBEFF) provides a standardized set of definitions and procedures that support the interchange of biometric data in standard data structures called CBEFF biometric information records (BIRs). CBEFF permits
Common Biometric Exchange Formats Framework Standardization
Proceedings of the 2008 Performance Metrics for Intelligent Systems (PerMIS 08) Workshop, August 19-21, 2008
The 2008 Performance Metrics for Intelligent Systems (PerMIS'08) Workshop is the eighth in the series that started in 2000 targeted at defining measures and methodologies of evaluating performance of intelligent systems. PerMIS focused on applications of
Vertical Handoff Decision Algorithms for Providing Optimized Performance in Heterogeneous Wireless Networks
There are currently a large variety of wireless access networks, including the emerging Vehicular Adhoc Networks (VANETs). A large variety of applications utilizing these networks will demand features such as real-time, high-availability and even
Security of Cell Phones and PDAs
This bulletin summarizes the information disseminated in NIST Special Publication (SP) 800-124, Guidelines on Cell Phone and PDA Security: Recommendations of the National Institute of Standards and Technology, which was written by Wayne Jansen and Karen
Security of Cell Phones and PDAs
A Comparative Analysis of BGP Anomaly Detection and Robustness Algorithms
We present an evaluation methodology for comparison of existing and proposed new algorithms for Border Gateway Protocol (BGP) anomaly detection and robustness. A variety of algorithms and alert tools have been proposed and/or prototyped recently. They
Using Markov Chain Analysis to Study Dynamic Behaviour in Large-Scale Grid Systems
In large-scale grid systems with decentralized control, the interactions of many service providers and consumers will likely lead to emergent global system behaviours that result in unpredictable, often detrimental, outcomes. This possibility argues for
Information Technology Laboratory Brochure
This brochure describes the Information Technology Laboratory (ITL) at NIST, including mission, core competencies, resources, products, and customers. It details ITL's eight programs and concludes with contact information.
Introducing "Insecure IT"
This article introduces a new department for IT Professional that will cover security in IT systems, ranging from desktops to global e-commerce networks. Our goal is to offer ideas to improve IT security, both by looking at ways it can go wrong as well as
Introducing "Insecure IT"
Slap Fingerprint Segmentation Evaluation II - Procedures and Results
In 2004, NIST conducted a fingerprint slap segmentation study [1] to assess the state-of-the-art in fingerprint segmentation technology. Given the development of new technology it has become necessary to reassess the current state-of-the-art of
Sequential Time-Bin Entanglement Generation Using Periodically Poled KTP Waveguide
We demonstrated non-degenerate sequential time-bin entanglement using periodically poled KTP waveguide at a repetition rate of 1 GHz. The wavelengths of signal and idler are 895 and 1310 nm. The two-photon-interference-fringe visibility is 79%.