Re: Copyright protection... HOW???




I don't quite understand, Mitch.

Sure, if I *catch* the perp red-handed with my work and can haul the miscreant
into court, the digital sig would prove ownership, but what about the thieves I
don't catch.

Certainly, add the signature as an added measure of backup, but some form of
protection against freely copying and "overusing" the file is the first line of
defense.



In article <eMStNmPfGHA.3888@xxxxxxxxxxxxxxxxxxxx>, Mitch Gallant wrote:
This is fairly easy to do.
Get a standard digital certificate from a certificate CA (Certificate
Authorithy) like Verisign.
Digitally sign your ppt presentation and TIME STAMP it ..
This is proven cryptographically strong protection, based on proven
algorithms. The cryptographically strong time-stamp ensures you have binding
proof, in an ongoing basis, that the owner fo that certificate (e.g. you)
had that content on a specific day. This is the only proper way
electronically to proove ownership of electronic documents bound to a
specific day.

Be very wary of any claims of products. Just because they haven't been
broken, does not mean that they are good protection.

- Mitch Gallant
MVP Security

"CrAviation" <craviation@xxxxxxxxx> wrote in message
news:1148197065.085926.287730@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi,

Tried posing this question on some encryption groups with little luck.

I have designed several slideshows as part of a course presentation
that I alone have offered.

Now that I am heading in a different direction, former collegues would
like to continue offering my course under my name and my guidance.

It's not that I don't trust my collegues, I just want a way to protect
my intellectual property.

After converting the PP to .exe, the protection for the files would
*ideally* be:

1. Each file protected by its own serial number, required upon
opening.
2. The serial for the user would have a 2-3 file-use lifespan
3. There would be seperate administrator and user serials - you never
know when access to the file more than 2-3 times may be necessary.

If I cannot control the usage of the files, I cannot control the
franchise.

I would appreciate any leads you can offer.

Cheers,
CR



-----------------------------------------
Steve Rindsberg, PPT MVP
PPT FAQ: www.pptfaq.com
PPTools: www.pptools.com
================================================


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