Practical Solution to Authentication of Images with a Secure Camera

Jean-Jacques Quisquater, Benoît Macq, Marc Joye, N. Degand, A. Bernard

Abstract: Those who have seen the move Forrest Gump witnessed former U.S. President J.F. Kennedy shaking the hand of Tom Hanks. Nevertheless, they have never met. Though this image seems real, how can we be certain it is not? How long can we still believe the images? This paper presents an efficient system guaranteeing to detect whether the images of an original video sequence have been modified between the original recording and the moment of viewing. Moreover, it takes into account the intervention of an editor between the original recording and the projection. Whatever is the final edited tape, the cryptographic information generated by the camera allows to authenticate the images of the editing. This scheme is dedicated to images coming from digital cameras using the DV format but can be extended to any other standard.