Abstract

Abstract: Demand of computer forensics increased because the numbers of computer crimes have been increased and committed daily. Technologies and Sciences have become the backbone of today’s life.  If any security system has been breached or crime has been practiced using computer or electronic devices then need for computer forensic gets generated for investigation and justice purpose. There has been an increase in concern for privacy and information security, radically in the light of technological advances and the practical increase in type of electronic communication. Hard disk drives (HDDs), Compact Disks (CDs), and Universal Serial Bus (USB) drives, etc. are mostly used information storage devices, for in support to almost all aspects relative to technology based life. Magnetic Storage devices are the most commonly targeted media for investigation and diagnosis purpose. As the users are now aware about the forensics tools today, they try to find out or access confidential information. In this paper, we discuss about some anti-forensic techniques/ methods which are performed on the digital devices. Anti-forensics is the collection of methods used against digital forensics. This research work focus on a significant anti-forensic technique “Data Sanitization” to delete or remove data completely from flash drives to test drive against criteria such as computation time required, efficiency of algorithm, tool performance and amount of data recovered.

Keywords: Data Sanitization, Investigation, Disk Wipe, Secure Eraser, Anti-forensics.