Re: Digital Photo Security
- From: "George K" <gkaiseril@xxxxxxxxx>
- Date: 31 Aug 2006 09:08:19 -0700
Besides the EXIF metadata within the image, Canon has the Data
Verification Kit DVK-E2 accessory for use with the upper end digital
cameras and Nikon has Image Verification software (image, EXIF and GPS
tags) for the new D2Xs..
intrepid_dw@xxxxxxxxxxx wrote:
All:
I was wondering if anyone is aware of any efforts on the part of
digital camera manufacturers to establish any kind of baseline
technology for photo authentication (something that would allow an
end-user of an image to verify that it is unaltered from the time it
was taken)? I have heard of external systems that intercept photos as
they are downloaded to an external source, such as a PC, and then uses
that as their baseline, but it seems that process isn't comprehensive.
I'm thinking in terms of embedding some sort of hash or thumbprint into
the actual image data that could be externally recomputed and validated
when the digital image is delivered to a third party. It might also be
implemented as a separate file that accompanies each photo image.
This might imply some sort of a key system embedded in each camera's
firmware, with each camera possessing it's own private key or
certificate issued by the manufacturer and then used to "sign" the
image. There are other possibilities, of course, but that one came to
mind.
Anyway, perhaps someone is already doing this at the camera level and
I'm just not aware of it, so any info would be appreciated.
Thanks in advance,
-intrepid
.
- References:
- Digital Photo Security
- From: intrepid_dw
- Digital Photo Security
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