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Information Technology

Networking

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Displaying 426 - 450 of 833

High Speed Quantum Key Distribution System Supports One-Time Pad Encryption of Real-Time Video

April 21, 2006
Author(s)
Alan Mink, Xiao Tang, Lijun Ma, Anastase Nakassis, Barry J. Hershman, Joshua C. Bienfang, David H. Su, Ronald F. Boisvert, Charles W. Clark, Carl J. Williams
NIST has developed a high-speed quantum key distribution (QKD) test bed incorporating both free-space and fiber systems. These systems demonstrate a major increase in the attainable rate of QKD systems: over two orders of magnitude faster than other

Source-Assisted Direction Estimation Inside Buildings

April 11, 2006
Author(s)
Kamran Sayrafian, D Kaspar
Source direction estimation inside building is a difficult and challenging task due to severe multipath signal propagation. Numerous algorithms and techniques exist that provide high-resolution direction estimation under certain conditions and channel

Autonomous System (AS) Isolation under Randomized BGP Session Attacks with RFD Exploitation

April 1, 2006
Author(s)
Kotikalapudi Sriram, Douglas Montgomery, Oliver Borchert, Okhee Kim, D. Richard Kuhn
BGP peering session attacks are known to drive routes into route flap damping (RFD) suppression states and thus cause isolations between autonomous systems (ASes) and destinations. We present a detailed study of the impact of BGP peering session attacks

High Speed Quantum Key Distribution System Supports One-Time Pad Encryption of Real-Time Video

April 1, 2006
Author(s)
Alan Mink, Xiao Tang, Lijun Ma, Anastase Nakassis, Barry J. Hershman, Joshua Bienfang, David H. Su, Ronald Boisvert, Charles W. Clark, Carl J. Williams
NIST has developed a high-speed quantum key distribution (QKD) test bed incorporating both free-space and fiber systems. These systems demonstrate a major increase in the attainable rate of QKD systems: over two orders of magnitude faster than other

Is Quantum Cryptography Provably Secure?

April 1, 2006
Author(s)
Anastase Nakassis, Joshua Bienfang, P. Johnson, Alan Mink, D. Rogers, Xiao Tang, Carl J. Williams
Quantum cryptography asserts that shared secrets can be established over public channels in such a way that the total information of an eavesdropper can be made arbitrarily small with probability arbitrarily close to 1. As we will show below, the current

Link Assessment in an Indoor 802.11 Network

April 1, 2006
Author(s)
Michael R. Souryal, Luke Klein-Berndt, Leonard E. Miller, Nader Moayeri
This paper presents the empirical results and analysis of a link variability study for an indoor, stationary 802.11 network subject to external interference. The objective is to characterize the relationships between the packet loss rate on a link and the

Prevailing Over Wires in Healthcare Environments: Benefits and Challenges

April 1, 2006
Author(s)
David E. Cypher, Nicolas Chevrollier, Nicolas Montavont, Nada T. Golmie
The objectives of this article are to survey the benefits and challenges that poise the deployment and operation of wireless communications in support of healthcare networks. While the main advantages of wireless communications remain to provide ubiquitous

RFID-Assisted Indoor Localization and Communication for First Responders

March 7, 2006
Author(s)
Leonard E. Miller, Perry F. Wilson, Nelson P. Bryner, Michael H. Francis, Jeffrey R. Guerrieri, D W. Stroup, Luke Klein-Berndt
An indoor localization and communication project is described that proposes to use RFID tags, placed in the building beforehand, as navigation waypoints for an inertial navigation system carried by a first responder. The findings from the first year of the

An Empirical Analysis of IPv6 Transition Mechanism

February 20, 2006
Author(s)
M K. Shin, Darrin J. Santay, Douglas Montgomery
We examine the performance of multimodal biometric authentication systems using state-of-the-art Commercial Off-the-Shelf (COTS) fingerprint and face biometric systems on a population approaching 1,000 individuals. Majority of prior studies of multimodal

Technical and Economic Assessment of Internet Protocol Version 6 (IPv6)

January 31, 2006
Author(s)
Gregory C. Tassey, Douglas C. Montgomery, Alfred Lee, Tim Sloan
The President’s National Strategy to Secure Cyberspace (National Strategy) directed the Secretary of Commerce to form a task force to examine the most recent iteration of the Internet Protocol, IP version 6 (IPv6). The President charged the task force with

Application of Beamforming in Wireless Location Estimation

January 1, 2006
Author(s)
Kamran Sayrafian, D Kaspar
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Joint Rate Adaptation and Channel-Adaptive Relaying in 802.11 Ad Hoc Networks

January 1, 2006
Author(s)
Michael R. Souryal, Nader Moayeri
Channel-adaptive relaying has recently been proposed as a means to exploit spatial and temporal diversity in multihop ad hoc networks with fading. In conjunction with appropriate routing protocols, adaptive relaying enables each forwarding node in a

Source-Assisted Direction Estimation Inside Buildings

January 1, 2006
Author(s)
Kamran Sayrafian, D Kaspar
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Toward Secure Routing Infrastructures

January 1, 2006
Author(s)
Douglas C. Montgomery, Sandra Murphy
Routing infrastructures are possibly the most vital, complex, and fragile components in the global information infrastructure. They are also the least protected from attack. In the public Internet, for example, the IP routing infrastructure comprises tens

Guide to IPsec VPNs: Recommendations of the National Institute of Standards and Technology

December 1, 2005
Author(s)
Sheila E. Frankel, Karen Kent, Ryan Lewkowski, Angela Orebaugh, Ronald Ritchey, Steven Sharma
IPsec is a framework of open standards for ensuring private communications over public networks. It has become the most common network layer security control, typically used to create a virtual private network (VPN). A VPN is a virtual network ,built on

Integrity Checking of DNS Zone File Data Using XSLT

December 1, 2005
Author(s)
Ramaswamy Chandramouli, Scott W. Rose
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

An Evaluation of Ultra Wideband Technology for Indoor Ranging

November 1, 2005
Author(s)
Camillo Gentile, El Kik
Ultra wideband technology shows promise for precision ranging due to its fine time resolution to resolve multipath fading and the presence of lower frequencies in the baseband to penetrate walls. While a concerted effort has been conducted in the

Handovers and Interference Mitigation in Healthcare Environments

October 17, 2005
Author(s)
Nicolas Chevrollier, Nicolas Montavont, Nada T. Golmie
In this article, we consider candidate wireless technologies such as IEEE 802.11b, and IEEE 802.15.4 that can support medical and healthcare informatics applications. The main questions that we try to answer are: (1) is there any potential for significant

High Speed Fiber-Based Quantum Key Distribution using Polarization Encoding

October 5, 2005
Author(s)
Xiao Tang, Lijun Ma, Alan Mink, Anastase Nakassis, Barry J. Hershman, Joshua Bienfang, Ronald Boisvert, Charles W. Clark, Carl J. Williams, A Gross, E Hagley, J Wen
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled
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