Video authentication is a process that is used to obtain the trustworthiness of a digital video and to assure a video hasn't been altered or tampered.
Performing Authentication Examinations of Imagery and Videos
Review visible scene content:
- Texture/Patterns (skin and background pattern)
- Physical body details (hair, muscles, body curves)
- Contact with other objects and body
- Skin to skin contact
- Imperfections on body
|Visual scene content includes low-quality synthesized faces, visible splicing boundaries, color mismatch, visible parts of the original face, inconsistent synthesized face orientations.|
- EXIF info (duration, GPS, software writer, codec)
- Comparing signatures of camera to video/image in question
- Behavior of file type (compression type)
- Reviewing binary structures and sequence of bytes in the hex of the file
- Evidence of being opened in a video editor
|Viewing the EXIF data of a file|
Using structural analysis from the video forensic tool (link MEDEX forensics) showing a video editing tool was detected in the structure of the video file.