Authenticity and integrity enhanced active digital image forensics based on visual cryptography

Abstract

Digital image forensics is an emerging research area which focuses on validating the authenticity, integrity of images, and detection of image forgeries. Digital image watermarking and digital signatures are presently used in active digital image forensics, but these methods provide only the authenticity and certain level of integrity and robustness. In this paper, we proposed a new method for active digital image forensics based on visual cryptographic schemes which provide improved authenticity, confidentiality, integrity, and robustness. Here, we have presented an overview of active digital image forensics and visual cryptographic schemes which have been discussed based on several studies. We have also discussed the demerits of the existing model and proposed a new model for image authentication and tampering detection. The proposed method is demonstrated with a simple example.