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  NCJ Number: NCJ 228226   Add to Shopping cart   Find in a Library
  Title: Test Results for Digital Data Acquisition Tool: EnCase 6.5
  Document URL: PDF 
  Corporate Author: National Institute of Standards and Technology (NIST)
United States of America
  Date Published: 09/2009
  Page Count: 122
  Annotation: Test results are presented on the Guidance Software, EnCase, version 6.5, a digital data acquisition tool, under the Computer Forensics Tool Testing (CFTT) program.
  Abstract: Except for four test cases, the EnCase acquired all visible and hidden sectors completely and accurately from the test media without any anomalies. The following six anomalies were observed: 1) if a logical acquisition is made of an NTFS partition, a small number of sectors, seven in the executed test, appear in the image file twice, replacing seven other sectors that fail to be acquired; 2) if a logical acquisition is made of an NTFS partition, the last physical sector of the partition is not acquired; 3) if the tool attempts to acquire a defective sector with an error granularity greater than one sector, some readable sectors near the defective sector are replaced by zeros in the created image file; 4) HPA and DCO hidden sectors can be acquired completely if FastBlock SE is used as a write blocker during an acquisition; 5) for some partition types when imaged as a logical acquisition, if a logical restore is performed there may be a small number of differences in file system metadata between the image file and the restored partition; and 6) for some removable USB devices that have been physically acquired, there may be a small number of differences in file system metadata between the image file and the restored device. The CFTT program, a joint project of the National Institute of Justice (NIJ) and the National Institute of Standards and Technology's, Office of Law Enforcement Standards and Information Technology Laboratory seeks to provide measurable assurance to practitioners, researchers, and other applicable users that the tools used in computer forensics investigations provide accurate results. This document reports the results from testing EnCase, version 6.5, against the Digital Data Acquisition Tool Assertions and Test Plan Version 1.0. Figures
  Main Term(s): Data collection
  Index Term(s): Testing and measurement ; Computer software ; Computers ; Criminal investigation ; Investigations ; Forensics/Forensic Sciences
  Sponsoring Agency: National Institute of Justice (NIJ)
US Department of Justice
Office of Justice Programs
United States of America
  Grant Number: 2003-IJ-R-029
  Sale Source: National Institute of Justice/NCJRS
Box 6000
Rockville, MD 20849
United States of America

NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
  Type: Test/Measurement
  Country: United States of America
  Language: English
  Note: NIJ Special Report
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