An approach for the similar file detection with GPS information

Abstract

Recently, an efficient file searching method related to the crime for the digital evidence is spotlighted in computer forensics. However, traditional cryptographic hashes cannot provide proper similarity between two similar files because even a single bit difference between two files brings a drastic change of the hash results. This paper introduces the techniques which measure a similarity between two files and compares the efficiency of the implemented tools as utility. Moreover, we also propose the method to detect similar files which include the different GPS information based on LBS.