Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Computers Forensics Guidance



G E. Fisher


This ITL Bulletin describes two projects in the computer forensics arena and provides guidance on the use of the products developed from them. The first project, the National Software Reference Library (NSRL), describes a database of known file fingerprints for use in investigations of crimes that involve computers. The second, the Computer Forensics Tool Testing (CFTT) project, describes ongoing work in the development of specifications and test methods for testing automated computer forensics tools.
Computers Forensics Guidance


computer crime, computerforensics tool testing (CFTT), digital software signature, National Software Reference Library (NSR, RDS: Reference Data Set, software fingerprint, software testing


Fisher, G. (2001), Computers Forensics Guidance, Computers Forensics Guidance (Accessed April 24, 2024)
Created November 30, 2001, Updated February 17, 2017