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Information Technology

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Displaying 701 - 725 of 2284

InChI, the IUPAC International Chemical Identifier

April 15, 2015
Author(s)
Stephen R. Heller, Alan McNaught, Igor Pletnev, Stephen Stein, Dmitrii Tchekhovskoi
This paper documents the design, layout and algorithms of the IUPAC International Chemical Identifier, InChI.

Privacy Amplification in the Isolated Qubits Model

April 14, 2015
Author(s)
Yi-Kai Liu
Isolated qubits are a special class of quantum devices, which can be used to implement tamper-resistant cryptographic hardware such as one-time memories (OTM's). Unfortunately, these OTM constructions leak some information, and standard methods for privacy

Password Entry Errors: Memory or Motor?

April 9, 2015
Author(s)
Kristen Greene, Frank Tamborello
As we increasingly rely upon our computer information systems to store and operate on sensitive information, the methods we use to authenticate user identity also become more important. One of the most important such methods is the password. However

Towards a "Periodic Table" of Bugs

April 8, 2015
Author(s)
Irena Bojanova
Our vision for a "periodic table" of bugs is a "natural" organization of a catalog or dictionary or taxonomy to describe software weaknesses and vulnerabilities. Such an organization will help the community to: a) more closely explain the nature of

ACT-R Modeling of Password Entry Errors

April 2, 2015
Author(s)
Kristen Greene, Franklin Tamborello
Validated predictive models of human error for password-related tasks could better inform password requirements for both government and civilian systems. Here, we build upon prior modeling work focused on disentangling the source of password entry errors

Combinatorial Coverage as an Aspect of Test Quality

March 31, 2015
Author(s)
David R. Kuhn, Raghu N. Kacker, Yu Lei
There are relatively few good methods for evaluating test set quality, after ensuring basic requirements traceability. Structural coverage, mutation testing, and related methods can be used if source code is available, but these approaches may entail

Assessing Effects of Asymmetries, Dynamics, and Failures on a Cloud Simulator

March 29, 2015
Author(s)
Kevin L. Mills, James J. Filliben, Christopher E. Dabrowski
We characterize the effects of asymmetries, dynamics, and failures when introduced into a cloud computing simulator, which had previously been characterized under static, homogeneous configurations with various patterns of demand and supply. We aim to

TRECVID 2014 -- An Overview of the Goals, Tasks, Data, Evaluation Mechanisms, and Metrics

March 26, 2015
Author(s)
Paul D. Over, Jonathan G. Fiscus, Gregory A. Sanders, David M. Joy, Martial Michel, George Awad, Alan Smeaton, Wessel Kraaij, Georges Quenot
The TREC Video Retrieval Evaluation (TRECVID) 2014 was a TREC-style video analysis and retrieval evaluation, the goal of which remains to promote progress in content-based exploitation of digital video via open, metrics-based evaluation. Over the last

Guidance for Secure Authorization of Mobile Applications in the Corporate Environment

March 19, 2015
Author(s)
Athanasios T. Karygiannis, Stephen Quirolgico, Larry Feldman, Gregory A. Witte
This bulletin provides an overview of NIST Special Publication (SP) 800-163, "Vetting the Security of Mobile Applications." The NIST SP helps organizations understand the process for vetting the security of mobile applications, plan for the implementation

The Multiplicative Complexity of Boolean Functions on Four and Five Variables

March 17, 2015
Author(s)
Meltem Sonmez Turan, Rene C. Peralta
A generic way to design lightweight cryptographic primitives is to construct simple rounds using small nonlinear components such as 4x4 S-boxes and use these iteratively (e.g., PRESENT and SPONGENT). In order to efficiently implement the primitive, optimal

Measuring the Resiliency of Cellular Base Station Deployments

March 11, 2015
Author(s)
David W. Griffith, Richard A. Rouil, Antonio Izquierdo Manzanares, Nada T. Golmie
The National Public Safety Telecommunications Council (NPSTC) has defined Resiliency as the ability of a network to withstand the loss of assets and to recover quickly from such losses. How to measure the resiliency of a base station deployment is an

Optimizing the Location Deployment of Dynamic Mobile Base Stations

February 19, 2015
Author(s)
Sulabh Bhattarai, Sixiao Wei, Stephen Rook, Wei Yu, David W. Griffith, Nada T. Golmie
There has been growing interest over the past few years in the US and around the world to build reliable, robust, and interoperable public safety broadband networks for emergency and disaster response. In this paper, we propose a low-cost, dynamic

IT Security

February 4, 2015
Author(s)
Morris Chang, D. Richard Kuhn, Timothy Weil
How can IT professionals adapt to ever-changing security challenges quickly and without draining their organizations' resources? Articles in this issue highlight emerging trends and suggest ways to approach and address cybersecurity challenges. [guest

A Logic Based Network Forensics Model for Evidence Analysis

January 28, 2015
Author(s)
Changwei Liu, Anoop Singhal, Duminda Wijesekera
Many attackers tend to use sophisticated multi-stage and/or multi-host attack techniques and anti-forensic tools to cover their traces. Due to the limitations of current intrusion detection and network forensic analysis tools, reconstructing attack

Defensive code's impact on software performance

January 26, 2015
Author(s)
David W. Flater
Defensive code is instructions added to software for the purpose of hardening it against uncontrolled failures and security problems. It is often assumed that defensive code causes a significant reduction in software performance, which justifies its

Vetting the Security of Mobile Applications

January 26, 2015
Author(s)
Stephen Quirolgico, Jeffrey M. Voas, Tom T. Karygiannis, Christoph Michael, Karen Scarfone
The purpose of this document is to help organizations (1) understand the process for vetting the security of mobile applications, (2) plan for the implementation of an app vetting process, (3) develop app security requirements, (4) understand the types of

An efficient curve evolution algorithm for multiphase image segmentation

January 7, 2015
Author(s)
Gunay Dogan
We propose a novel iterative algorithm for segmentation of multiphase images by curve evolution. Specifically, we address a multiphase version of the Chan-Vese piecewise constant segmentation energy. Our algorithm is efficient: it is based on an explicit
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