NIST · ИТ

Conference Paper

Application of XML Tools for Enterprise-Wide RBAC Implementation Tasks

The NIST Model for Role-Based Access Control: Towards a Unified Standard

The NIST Model for Role-Based Access Control: Towards a Unified Standard

This paper describes a unified model for role-based access control (RBAC). RBAC is a proven technology for large-scale authorization. However, lack of a standard model results in uncertainty and confusion about its utility and meaning. The NIST model seeks

Conference Paper

The NIST Model for Role-Based Access Control: Towards a Unified Standard

CIO Cyber Security Notes

CIO Cyber Security Notes

The CIO Cyber Security Notes will be published six times a year and distributed to the senior-level CIOs and senior-level executives within the Federal government. Its purpose is to heighten awareness of cyber security trends and issues. It will report

Automated Parameter Extraction Software for Advanced IGBT Modeling

Automated Parameter Extraction Software for Advanced IGBT Modeling

A software package for extracting parameters used in advanced IGBT models is presented. In addition, new model equations and extraction procedures are introduced that more accurately describe a wide range of IGBT types including the recently developed Warp

Identifying Critical Patches With ICAT

Identifying Critical Patches With ICAT

[For the latest information on vulnerabilities, see the National Vulnerability Database, nvd.nist.gov]The NIST computer security division has created a searchable index containing 700 of the most important computer vulnerabilities. This index, called the

ITL Bulletin

Identifying Critical Patches with ICAT

Mitigating Emerging Hacker Threats

Mitigating Emerging Hacker Threats

[For the latest information on vulnerabilities, see the National Vulnerability Database, nvd.nist.gov] It seems that every week, computer security organizations are issuing press releases concerning the latest hacker attack. Some sound dangerous, like the

ITL Bulletin

Mitigating Emerging Hacker Threats

Public Key Infrastructures for the Financial Services Industry

Public Key Infrastructures for the Financial Services Industry

This paper addresses how financial institutions can use a Public Key Infrastructure (PKI) and some of the problems they may face in the process. PKI is an emerging cryptographic technology that is badly needed to realize the potential of information

NFRad: Review of the New NIST Noise Measurement System

NFRad: Review of the New NIST Noise Measurement System

Multiport Noise Characterization and Differential Amplifiers

Multiport Noise Characterization and Differential Amplifiers

I address the issue of the definition and measurement of noise figure and parameters to characterize multiport devices, particularly differential amplifiers. A parameterization in terms of the noise matrix appears to be the most practical. The noise figure

Noise-Source Stability Measurements

Noise-Source Stability Measurements

We report results of stability tests on several noise sources for selected frequencies between 12 and 26.5 GHz. Measurements covered intervals of about 1 week and about 1 year or more. Drifts in noise temperature were typically less than the uncertainty of

4 Amp 4H-SiC JBD Diodes

4 Amp 4H-SiC JBD Diodes

Randomness Testing of the Advanced Encryption Standard Finalist Candidates

Randomness Testing of the Advanced Encryption Standard Finalist Candidates

Mars, RC6, Rijndael, Serpent and Twofish were selected as finalists for the Advanced Encryption Standard (AES). To evaluate the finalists' suitability as random number generators, empirical statistical testing is commonly employed. Although it widely

Calculation of Ion Energy Distributions from Radio Frequency Plasmas Using a Simplified Kinetic Approach

Calculation of Ion Energy Distributions from Radio Frequency Plasmas Using a Simplified Kinetic Approach

Using an elementary kinetic approach, a procedure is described for calculating ion energy distributions (IEDs) from radio frequency (rf) plasmas. The calculated distributions, which are in the form of histograms, are used to fit experimental argon and CF 3

SP 800-20

Modes of Operation Validation System for the Triple Data Encryption Algorithm (TMOVS): Requirements and Procedures

IR 6483

Randomness Testing of the Advanced Encryption Standard Finalist Candidates

Security Implementations of Active Content

Security Implementations of Active Content

Active content documents offer several benefits to both the users of these documents and their authors. Java applets, JavaScript, and ActiveX provide more functionality to static Web pages, plug-ins enable browsers to support new types of content

ITL Bulletin

Security Implications of Active Content

Time-resolved Measurements of Ion Energy Distributions and Optical Emissions in Pulsed Radio-Frequency Discharges

Time-resolved Measurements of Ion Energy Distributions and Optical Emissions in Pulsed Radio-Frequency Discharges

In pulse-modulated inductively coupled plasmas generated in CF 4:Ar mixtures, a transition between a capacitive coupling mode (E mode) and an inductive coupling mode (H mode) was observed. For a pulsed plasma in a 50%CF 4:50%Ar volume mixture with the peak

Software Standards Development - Wherever - However - The Bugs are Free

Software Standards Development - Wherever - However - The Bugs are Free

The perceived tradeoff between the speed of development and the technical soundness of the resulting standards may not be relevant to the development of complex software standards. The market shelf life of a software standard tends to be more dependent

Failure Dynamics of the IGBT During Turn-Off for Unclamped Inductive Loading Conditions

Failure Dynamics of the IGBT During Turn-Off for Unclamped Inductive Loading Conditions

The internal failure dynamics of the Insulated Gate Bipolar Transistor (IBGT) for unclamped inductive switching (UIS) conditions are studied using simulations and measurements. The UIS measurements are made using a unique, automated nondestructive Reverse

Design and Testing of NFRad - A New Noise Measurement System

Design and Testing of NFRad - A New Noise Measurement System

The NIST Noise project has constructed and tested a new, automated, coaxial (GPC-7) radiometer for the measurement of noise sources in the 8-12 GHz frequency band. It is an isolated, total-power radiometer that relies on lookup tables for relevant

Other

Report of the Workshop on Key Management Using Public Key Cryptography

A Comparison of the SSE-CMM and NVLAP IT Security Testing

A Comparison of the SSE-CMM and NVLAP IT Security Testing

This paper describes the general accreditation requirements of the NIST National Voluntary Laboratory Accreditation Program (NVLAP) and the specific accreditation requirements for the Cryptographic Module Testing (CMT) and Common Criteria Testing (CCT)

Web-Based Annotation Collaboration Tool

Web-Based Annotation Collaboration Tool

The Web has emerged as a dominant mode of making information available and is increasingly seen as the medium to support collaboration across boundaries of geography and time. To realize this potential the Web must support viewing and manipulating of multi

Formulation of Multiple Diffraction by Trees and Buildings for Radio Propagation Predictions for Local Multipoint Distribution Service

Formulation of Multiple Diffraction by Trees and Buildings for Radio Propagation Predictions for Local Multipoint Distribution Service

This paper presents a closed-form expression for multiple forward diffraction by rows of tree canopies and buildings, applicable to the propagation predictions at centimeter and millimeter wavelengths for local multipoint distribution service (LMDS). The

A Differentiated Optical Services Model for WDM Networks

A Differentiated Optical Services Model for WDM Networks

This paper addresses the issues of guaranteed and scalable end-to-end QoS in Metropolitan DWDM networks serving as transit networks for IP access networks. DWDM offering few wavelengths have in the past been deployed in the backbone network to upgrade

ITL Bulletin

Guideline for Implementing Cryptography in the Federal Government