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Information Technology

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Displaying 826 - 850 of 4392

vPROM: vSwitch Enhanced Programmable Measurement in SDN

October 10, 2017
Author(s)
An Wang, Yang Guo, Songqing Chen, Fang Hao, T.V. Lakshman, Douglas C. Montgomery, Kotikalapudi Sriram
Network programmability is a salient feature of Software Defined Networking (SDN), which allows users to program network applications with the perception that the underlying network is a single device. While still at an early stage of development, SDN

Alexa, Can I Trust You?

September 29, 2017
Author(s)
Judy Chung, Michaela Iorga, Jeff Voas, Sangjin Lee
Security diagnostics expose vulnerabilities and privacy threats that exist in commercial Intelligent Virtual Assistants (IVA)-- diagnostics offer the possibility of securer IVA ecosystems. This paper explores security and privacy concerns with these

Timestamp Temporal Logic (TTL) for Time Testing of Cyber-Physical Systems

September 27, 2017
Author(s)
Mohammadreza Mehrabian, Mohammad Khayatian, Aviral Shrivastava, John Eidson, Patricia Derler, Hugo A. Andrade, Ya-Shian Li-Baboud, Edward Griffor, Marc A. Weiss, Kevin Stanton
In order to test the performance and verify the correctness of Cyber-Physical Systems (CPS), the timing constraints on the system behavior must be met. Signal Temporal Logic (STL) can efficiently and succinctly capture the timing constraints on a given

Updating the Keys for DNS Security

September 27, 2017
Author(s)
Scott W. Rose, Larry Feldman, Gregory A. Witte
To help maintain the reliability and integrity of the Internet’s Domain Name System (DNS), NIST is working with specialists from around the world to update the keys used by the DNS Security Extensions (DNSSEC) protocol to authenticate DNS data and avoid

Wireless Activities in the 2 GHz Radio Bands in Industrial Plants

September 27, 2017
Author(s)
Yongkang Liu, Nader Moayeri
Wireless connections are becoming popular in industrial environments that increasingly carry sensing and actuation data over the air. In industrial plants, activities of legacy wireless systems have shaped the channel usage in the radio spectrum bands for

Local measurements of photocurrent and band gap in CdTe solar cells

September 25, 2017
Author(s)
Yohan Yoon, Jungseok Chae, Aaron M. Katzenmeyer, Heayoung Yoon, Joshua D. Schumacher, Sang M. An, Andrea Centrone, Nikolai B. Zhitenev
Polycrystalline thin film technology has shown great promise for low cost, high efficiency photovoltaics. To further increase the power efficiency, a firm understanding of microstructural properties of the devices is required. In this work, we investigate

Cybersecurity Framework Manufacturing Profile

September 8, 2017
Author(s)
Keith A. Stouffer, Timothy A. Zimmerman, CheeYee Tang, Joshua Lubell, Jeffrey A. Cichonski, John McCarthy
[Superseded by NISTIR 8183 (September 2017, Includes updates as of May 20, 2019)]This document provides the Cybersecurity Framework (CSF) implementation details developed for the manufacturing environment. The "Manufacturing Profile" of the Cybersecurity

Understanding the Major Update to NIST SP 800-63: Digital Identity Guidelines

August 29, 2017
Author(s)
Michael E. Garcia, Paul A. Grassi, Kristina G. Rigopoulos, Larry Feldman, Gregory A. Witte
This bulletin outlines the updates NIST recently made in its four-volume Special Publication (SP) 800-63, Digital Identity Guidelines, which provide agencies with technical guidelines regarding the digital authentication of users to federal networked

Conceptual Modeling

August 19, 2017
Author(s)
Conrad E. Bock, Fatma Dandashi, Sanford Friedenthal, Natalie Harrison, Steven Jenkins, Leon McGinnis, Janos Sztipanovits, Adelinde Uhrmacher, Eric Weisel, Lin Zhang
Understanding and developing complex systems requires collaboration between individuals with widely varying expertise. Communication between these individuals is facilitated by conceptual models. Conceptual models are early stage artifacts that integrate
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