Title: Analysis of Digital Document Engineering Forensic with NIJ

Issue Number: Vol. 11, No. 2
Year of Publication: 2022
Page Numbers: 34-39
Authors: Arizona Firdonsyah, Danur Wijayanto
Journal Name: International Journal of Cyber-Security and Digital Forensics (IJCSDF)
- Hong Kong


Digital forensics can assist in digitally collecting evidence to be presented in court in accordance with applicable law. One example of digital forensic science is image forensics, which aims to collect and look for evidentiary facts in determining the authenticity of an image. Various criminal and pornographic cases involving image files often occur, therefore image forensics is an important key item to assist the court in making decisions. This research examines the authenticity of digital documents using the National Institute of Justice (NIJ) method by applying the forensic ELA (Error Level Analysis) method. Several previous studies have proven that the forensic ELA method can detect modifications that have been made to images. Differences with previous studies, in this study the authors also checked the metadata of the images before performing the ELA examination using photoforensic software. The results of the analysis show a high level of inconsistency in images and writing because there are many white dots in several places such as the letterhead logo, letterhead writing, text content, footnotes, and initials below the right.