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Displaying 1951 - 1975 of 2846

Practical Combinatorial Testing: Beyond Pairwise

June 1, 2008
Author(s)
David R. Kuhn, Yu Lei, Raghu N. Kacker
With new algorithms and tools, developers can apply high-strength combinatorial testing to detect elusive failures that occur only when multiple components interact. In pairwise testing, all possible pairs of parameter values are covered by at least one

The NIST Hash Competition

May 20, 2008
Author(s)
William E. Burr
Since the discovery of collision attacks against several well known cryptographic hash functions in 2004 there has been a rush of new cryptanalytic results that cast doubt on our current hash function standards. The relatively new NIST SHA-2 standards are

Tight Bounds for the Multiplicative Complexity of Symmetric Functions

April 28, 2008
Author(s)
Joan Boyar, Rene Peralta
The multiplicative complexity of a Boolean function f is defined as the minimum number of binary conjunction (AND) gates required to construct a circuit representing f , when only exclusive-or, conjunction and negation gates may be used. This article

Codes for the Identification of Federal and Federally-Assisted Organization

April 25, 2008
Author(s)
William C. Barker, Hildegard Ferraiolo
The Homeland Security Presidential Directive HSPD-12 called for new standards to be adopted governing the interoperable use of identity credentials to allow physical and logical access to Federal government locations and systems. The Personal Identity

Second Preimage Attacks on Dithered Hash Functions

April 17, 2008
Author(s)
Elena Andreeva, Charles Bouillaguet, Pierre-Alain Fouque, Jonathan J. Hoch, John M. Kelsey, Adi Shamir, Sebastien Zimmer
We develop a new generic long-message second preimage attack, based on combining the techniques in the second preimage attacks of Dean Dean99} and Kelsey and Schneier KS05} with the herding attack of Kelsey and Kohno KK06}. We show that these generic

Computer Security Division 2007 Annual Report

April 1, 2008
Author(s)
Kevin M. Stine, Mark Wilson
Title III of the E-Government Act of 2002, entitled the Federal Information Security Management Act (FISMA) of 2002, requires NIST to prepare an annual public report on activities undertaken in the previous year, and planned for the coming year, to carry

A Two-Tier Bloom Filter to Achieve Faster Membership Testing

March 27, 2008
Author(s)
Miguel Jimeno, K Christensen, Allen L. Roginsky
Testing for element membership in a Bloom Filter requires hashing of a test element (e.g., a string) and multiple look-ups in memory. A design of a new two-tier Bloom filter with on-chip hash functions and cache is described. For elements with a heavy

Handling Computer Security Incidents: NIST Issues Updated Guidelines

March 27, 2008
Author(s)
Shirley M. Radack
This bulletin summarizes information disseminated in revised NIST Special Publication (SP) 800-61-1, Computer Security Incident Handling Guide: Recommendations of the National Institute of Standards and Technology. Written by Karen Scarfone and Tim Grance
Displaying 1951 - 1975 of 2846
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