Forensic Relative Strength Scoring: ASCII and Entropy Scoring

This paper is the result of an investigation into applying statistical tools and methodologies to the discovery of digital evidence. Multiple statistical methods were reviewed; the two most useful are presented here. It is important to note that this paper represents an inquiry into the value of applied mathematical analysis to digital forensics investigations. Readers are encouraged to explore the concepts and make use of the tools presented here, in the hope that a synergy can be developed and concepts can be expanded to meet future challenges. In addition, this paper contains practical examples using modified Sleuthkit tools containing the proposed statistical measurements.