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Topic: Re: Adobe Integration Key for Acrobat reader
Conf: (P-PDF) Developers, Msg: 56364
From: Deleted User
Date: 5/29/2002 05:18 PM

>Could someone explain how the integration key for the Acrobat reader
>is integrated in its plug-in development?
>Is there some public key stuff behind it or is it just a plain key?
>Just a brief description from someone who has licensed this from
>Adobe will be much appreciated.
>Thanks in advance.

Information on the Acrobat Reader integration key used to be
included with the Acrobat SDK and available on the Adobe web site.

The Reader integration key uses public key technology. The vendor
creates a public/private key pair. The public key is sent to Adobe
where it is digitally signed then returned to the vendor. This
digitally signed public key is then embedded into the Acrobat Reader
plug-in. The embedding process locks the key to the Reader plug-in;
so, a third party can not extract the key from an authorized plug-in
and use it in an unauthorized plug-in.

This is, in essence, a digital signing process and has two
significant advantages for Adobe. It locks a unique vendor id into
the Reader plug-in and it also allows Acrobat Reader to determine if
a plug-in has been tampered with since being built by the vendor.

On startup; Acrobat Reader validates the "Digital Signature" attached
to the Reader plug-in. If the digital signature can not be validated
then Acrobat Reader will reject the plug-in.


Mark Gavin
Chief Technology Officer
Appligent, Inc. (formerly Digital Applications, Inc.)
60 South Lansdowne Avenue
Lansdowne, PA 19050
(610) 284-4006

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