scott wrote:

> Hi-end digital cameras have security features to prove the image has not 
> been tampered with since the camera wrote the file.  I have no idea how 
> it works but it would seem something like this might propagate down to 
> cheaper cameras if there is a demand for proving the image is original.

You could have the camera write a digital signature and make it really 
awkward to get at the encryption key [which must, necessarily, be 
present inside the camera somewhere]. But when, if you have an image in 
RAW format, I would imagine it's fairly easy to fake anyway.

Most people don't just happen to have a Nikon DSLR in their pocket when 
they witness a robbery. They shoot people with camera phones and stuff.

Post a reply to this message