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Re: [OM] Re: Digital True Lies

Subject: Re: [OM] Re: Digital True Lies
From: "Paul D. Farrar" <farrar@xxxxxxxxxxxx>
Date: Tue, 17 Dec 2002 23:40:39 -0600
The device would be used for evidence photography. If there is secure
confirmation that the original picture has not been changed in way
whatsoever,
the digital photograph can be entered as evidence in court. Without such
a "seal", digital photography is pretty much useless legally.

Paul Farrar

----- Original Message -----
From: "C.H.Ling" <chling@xxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, December 17, 2002 11:10 PM
Subject: Re: [OM] Re: Digital True Lies


> Can someone just save the file as BMP and you lost all signatures then
> they can put on their own one?
>
> C.H.ling
>
> Albert wrote:
> >
> > It's really not that difficult.
> >
> > The signature is done to the hash, not the file.  Subsequent signatures
> > will sign against the inclusion of the first hash as well.  "Stacking"
> > happens and we can peel the layers and see who was first..
> >
> > Albert
>
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