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Displaying 726 - 750 of 1521

Optimal Spread in Network Consensus Models

January 27, 2014
Author(s)
Fern Y. Hunt
Suppose we seek a set of nodes in a network that will enable the fastest spread of information in a decentralized communication environment. If communication resources are limited there are constraints on the number of nodes that can be selected. In this

IREX IV: Part 2 Compression Profiles for Iris Image Compression

January 23, 2014
Author(s)
George Quinn, Patrick Grother, Mei Ngan, Nick Rymer
The IREX IV evaluation builds upon IREX III as a performance test of one-to-many iris recognition. This report is the second part of the IREX IV evaluation, which specifically, evaluates the ability of automated iris recognition algorithms to match heavily

Building one-time memories from isolated qubits

January 14, 2014
Author(s)
Yi-Kai Liu
One-time memories (OTM's) are a simple type of tamper-resistant cryptographic hardware, that can be used to implement many forms of secure computation, such as one-time programs. Here we investigate the possibility of building OTM's using "isolated qubits"

A Profile of the Key Management Framework for the Federal Government

January 9, 2014
Author(s)
Elaine B. Barker
The Computer Security Division within ITL has recently provided a draft of Special Publication (SP) 800-152, A Profile for U. S. Federal Cryptographic Key Management Systems, for public comment. NIST SP 800-152 is based on NIST SP 800-130, A Framework for

A New Standard for Securing Media-Independent Handover: IEEE 802.21a

December 31, 2013
Author(s)
Rafa Marin-Lopez, Fernando Bernal-Hidalgo, Subir Das, Lidong Chen, Yoshihiro Ohba
When enabling handover between different radio interfaces (e.g., handover from 3G to Wi-Fi), reducing network access authentication latency and securing handover related signaling messages are major challenging problems, amongst many others. The IEEE 802

The National Vulnerability Database (NVD): Overview

December 18, 2013
Author(s)
Harold Booth, Doug Rike, Gregory A. Witte
The National Vulnerability Database (NVD), and its companion, the National Checklist Program (NCP), have provided a valuable and flexible set of services to users around the world since NVD was established in 2005. The NVD was established to provide a U.S

Avoiding Accidental Data Loss

October 18, 2013
Author(s)
Richard L. Kissel
Does your organization have systematic procedures to remove sensitive data from obsolete equipment, or do you use a somewhat ad hoc process for the cleanup and disposal of old gear? Careless disposal of data storage hardware has led to costly and

Creating Integrated Evidence Graphs for Network Forensics

October 18, 2013
Author(s)
Changwei Liu, Anoop Singhal, Duminda Wijesekera
Evidence Graphs model network intrusion evidence and their dependencies, which helps network forensics analyst collate and visualize dependencies. In particular, probabilistic evidence graph provide a way to link probabilities associated with different

Aggregating Vulnerability Metrics in Enterprise Networks using Attack Graphs

September 20, 2013
Author(s)
John Homer, Su Zhang, Xinming Ou, David Schmidt, Yanhui Du, S. Raj Rajagopalan, Anoop Singhal
Quantifying security risk is an important and yet difficult task in enterprise network security man- agement. While metrics exist for individual software vulnerabilities, there is currently no standard way of aggregating such metrics. We present a model

Cryptographic Key Management Issues & Challenges in Cloud Services

September 18, 2013
Author(s)
Ramaswamy Chandramouli, Michaela Iorga, Santosh Chokhani
To interact with various services in the cloud and to store the data generated/processed by those services, several security capabilities are required. Based on a core set of features in the three common cloud services - Infrastructure as a Service (IaaS)

Related-Key Slide Attacks on Block Ciphers with Secret Components

September 18, 2013
Author(s)
Meltem Sonmez Turan
Lightweight cryptography aims to provide sufficient security with low area/power/energy requirements for constrained devices. In this paper, we focus on the lightweight encryption algorithm specified and approved in NRS 009-6-7:2002 by Electricity

Secure Domain Name System (DNS) Deployment Guide

September 18, 2013
Author(s)
Ramaswamy Chandramouli, Scott W. Rose
The Domain Name System (DNS) is a distributed computing system that enables access to Internet resources by user-friendly domain names rather than IP addresses, by translating domain names to IP addresses and back. The DNS infrastructure is made up of

ITL Publishes Guidance on Preventing and Handling Malware Incidents

August 22, 2013
Author(s)
Elizabeth B. Lennon
This ITL Bulletin summarizes a new ITL publication, NIST Special Publication 800- 83 Revision 1,Guide to Malware Incident Prevention and Handling for Desktops and Laptops,which gives receommendations for organizations to improve their malware incident

A Framework for Designing Cryptographic Key Management Systems

August 15, 2013
Author(s)
Elaine B. Barker, Miles Smid, Dennis Branstad, Santosh Chokhani
This Framework for Designing Cryptographic Key Management Systems (CKMS) contains topics that should be considered by a CKMS designer when developing a CKMS design specification. For each topic, there are one or more documentation requirements that need to

Investigating the Application of Moving Target Defenses to Network Security

August 15, 2013
Author(s)
Rui Zhuang, Su Zhang, Alex Bardas, Scott DeLoach, Xinming Ou, Anoop Singhal
This paper presents a preliminary design for a moving-target defense (MTD) for computer networks to combat an attacker's asymmetric advantage. The MTD system reasons over a set of abstract models that capture the network's configuration and its operational
Displaying 726 - 750 of 1521
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