This paper demonstrates that, for large-scale tests, the match and non-match similarity scores have no specific underlying distribution function. The forms of these distribution functions require a nonparametric approach for the analysis of the fingerprint
Objective Speech Quality Measures for Internet Telephony
Measuring voice quality for telephony is not a new problem. However, packet-switched, best-effort networks such as the Internet present significant new challenges for the delivery of real-time voice traffic. Unlike the circuit-switched PSTN, Internet
Meander Delay Line Challenge Problem: A Comparison Using FDTD, FEM and MOM Techniques
Full wave finite-difference time-domain (FDTD) and a simplified 1D- finite-difference time-domain technique using the multi-conductor transmission line equations are applied to a delay line to determine its propagation characteristics. The output volatge
Many different access controls policies and models have been developed to suit a variety of goals: these include Role-Based Access Control, One-directional Information Flow, Chinese Wall, Clark-Wilson, N-person Control, and DAC, in addition to more
A Framework for Performance Evaluation and Optimization of an Emerging Multimedia DS-CDMA Network
This paper proposes a framework for performance evaluation md optimization of an emerging multimedia, packet Direct-Sequence Code Division Multiple Access (DS-CDMA) network with a wide range of Quality of Service (QoS) requirements on losses and delays
What to Expect When You Can Not Start at the Beginning
This presentation contains background information on the decision to create an Specification and Description Language (SDL) model, a discussion of the development cycle for the product development, a description of the SDL's creation, an explanation on how
Interference of Bluetooth and IEEE 802.11: Simulation Modeling and Performance Evaluation
The emergence of several radio technologies such as Bluetooth, and IEEE 802.11 operating in the 2.4 GHz unlicensed ISM frequency band may lead to signal interference and result in significant performance degradation when devices are co-located in the same
CDMA2000 Reverse-Link Simulation Model Design and Evaluation
This paper presents the design and implementation of a simulation model for the cdma2000 reverse link. The model includes all the radio configurations and their corresponding data rates in accordance with the IS-2000 specifications. The paper first
Silicon Carbide PiN and Merged PiN Schottky Power Diode Models Implemented in the Saber Circuit Simulator
Dynamic compact electrothermal models are developed for Silicon Carbide Power diodes. Model parameters are extracted and model results are presented for both 1500 V SiC Merged PiN diodes. The models are verified for on-state characteristics? temperature
Characterization of Paralleled Super Junction MOSFET Devices under Hard- and Soft-Switching Conditions
The super junction (SJ) MOSFET exhibits conduction and switching properties similar to those of conventional power MOSFETs. In this paper we investigate possible benefits and problems associated with connecting SJ MOSFET in parallel for high-power
We need to facilitate a change in user perception of security from a hindrance to an essential revenue generator and mission enabler. The Common Criteria protection profile (PP) and security target (ST) constructs can be used to help achieve this need. Yet
Engineering Principles for Information Technology Security (A Baseline for Achieving Security)
[Superseded by SP 800-27 Revision A (June 2004): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151294 ] The Engineering Principles for Information Technology (IT) Security (EP-ITS) presents a list of system-level security principles to be
High Temperature Characteristics of 5kV, 20 A 4H-SiC PiN Rectifiers
This paper reports in detail, the design, a manufactuable fabrication process, and high temperature characteristics of a 4H-SiC rectifier with a 5 kV, 20 A rating. A highly doped p-type epitaxial Anode layer and junction termination extension (JTE) were
A Framework for Managing Faults and Attacks in All-Optical Transport Networks
ult and attack survivability in all-optical transport networks (AOTNs) require new approaches because of unique transmission characteristics. Specifically, fiber non-linearities and network transparency to transmitted signal types may make the network
Engineering Principles for Information Technology Security
In June 2001, ITL released NIST Special Publication (SP) 800-27, Engineering Principles for Information Technology Security (EP-ITS), by Gary Stoneburner, Clark Hayden, and Alexis Feringa. Engineering Principles for Information Technology (IT) Security (EP
A Comparison of the Security Requirements for Cryptographic Modules in FIPS 140-1 and FIPS 140-2
Federal agencies, industry, and the public now rely on cryptography to protect information and communications used in critical infrastructures, electronic commerce, and other application areas. Cryptographic modules are implemented in these products and
Security Requirements for Cryptographic Modules [includes Change Notices as of 12/3/2002]
This Federal Information Processing Standard (140-2) specifies the security requirements that will be satisfied by a cryptographic module, providing four increasing, qualitative levels intended to cover a wide range of potential applications and
A Statistical Test Suite for Random and Pseudorandom Number Generators for Cryptographic Applications
[Superseded by SP 800-22 Revision 1a (April 2010): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906762 ] This paper discusses some aspects of selecting and testing random and pseudorandom number generators. The outputs of such generators may