Allowing customer only access to a file from one machine only...

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Guest

Hello my manager has a question in regards to being able to give access to a
file to a computer only. This file will be either sent to or downloaded from
the client computer.
For example we are a pharmaceutical company selling formulas to our
customers(paper-based). If we are to put up our formulas on the net, and if a
person downloads this file, can he only view it on his computer only?
Suggestion, maybe if he has some sort of key that could unlock the file and
make it viewable from his computer. If he sends this file to his home, he
will need to register another key.

I was thinking of a public key interface access but my manager wants a
specific computer to have access rights.

Any suggestions is gladly accepted!

Thanx in advance.
 
You could make a special file format that needs a viewer to decrypt an view
the file. You could also make the viewer application require a purchased
key to run on a PC.

But, once the user opens the file, anybody can do a screen capture and send
the formula anywhere in the world.

So, if this is an effort to keep the formulas secret....you'd best keep them
in a safe. Once out, there is no way to keep a user from sharing it in one
form or another.
 
You'll need to build a Windows application that reads meta data from
hardware just like Microsoft and other vendors do when they build their keys
that are used to verify the machine is running licensed software. The
application should be a Windows SmartClient so it can use HTTP to securely
authenticate with the website where authorization and access to formulas can
be controlled.

Every customer has to download and install the application on each machine
that is authorized for viewing. Again, this Smart Client application manages
all of the authorization which is done on the web server. The same
application also has to use some very low level COM to audit the machine the
customer wants to use for secure access to the formulas.

The rest of the task will depend on which type of Digital Rights Management
you use with any documents you may send to the customer's computer.


<%= Clinton Gallagher
NET csgallagher AT metromilwaukee.com
URL http://www.metromilwaukee.com/clintongallagher/
 
Jiro,

In addition to the others.

The problem is exactly the same as that you would sent the formules on
paper.
Ask your manager how he prevent to copy that.

Just my idea

Cor
 
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