A forensic chip for secure digital video recording

The rapid advancement of digital scanner, digital camera and digital video recorder technologies has created a huge market for digital multi-media, such as documents, photos and videos, storage, retrieval and reproduction market. The ease of modifications using editing tools makes the identification of original masterpiece difficult and these forgeries sometimes become an important issue for identification, authentication and law enforcement. The demand of a security protection chip increases as digital documents in form of digital video became popular and forensic approaches for detecting forgery evident became vital. In this paper, a real time forensic chip is designed and implemented. This Chip captures real time video frames and encodes forensic mark into the video frame. The video frame with forensic mark embedded is then transmitted to remote host through TCP/IP. On the remote host, the same Chip can be used to decode the stored forensic mark from the received video frame. Any modifications to the original captured video can immediately be detected by the chip in real time.