Tampering detection in digital video – a review of temporal fingerprints based techniques With the availability of advanced electronic gadgets like high-quality digital video camera, cell phone etc. there is an explosion of digital videos. When coupled with sophisticated digital video processing techniques there is a good increase in count and quality of tampered video. Video forensic is comparatively a new research domain which comes with many threats as well as many opportunities. This paper presents classification of video authentication techniques and their fundamental features, developed in last few years for tempering detection in digital videos.