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Re: Video & cryptography...
Schneier, Wagner and Kelsey have done some work on an authenticating
camera.
One issue to be concerned with is that what the camera sees is not
always the truth. Putting a film set together to film bigfoot is
easy. The fact that the film is authenticated as having come from the
camera doesn't mean a whole lot in some cases.
Adam
Jim Choate wrote:
| Hi,
|
| I was in a discussion with several people regarding the rate if improvement
| of current video production equipment and how it would effect the veracity
| of video images of all sorts in future legal cases.
|
| Is anyone aware of anybody working on a mechanism to digitaly sign video and
| photographs (a cool app of stego I suspect)? This would alleviate a great
| deal of mistrust for security video cams and such. What I had in mind was
| the manufacturer puts a unique key in each machines rom's and when each
| image comes in a signature of the image and the key is stored in the
| interframe retraces that are normaly not shown (ala videotext). I asked a
| couple of people in the biz that I know and it seemed a new concept to them.
|
| Just a thought...
|
|
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