Title: The Design and Implementation of Tripwire: A File System
Integrity Checker 
Authors: Gene H. Kim  Eugene H. Spafford   
Filename: pubCOASTTripwireTripwire.ps.Z 
File size: 51032 bytes

Abstract: This paper describes the design and implementation of
the Tripwire tool. It uses interchangeable "signature" routines
to identify changes in files, and is h highly configurable.