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Fwd: prior art on Patent 7,743,336

From: Doug Schepers <schepers@w3.org>
Date: Tue, 19 Jul 2011 01:04:36 -0400
Message-ID: <4E251064.3040305@w3.org>
To: public-widgets-pag@w3.org
Forwarding on from original email sent to me offlist... if anyone wants 
to follow up, I can contact the original poster.

-------- Original Message --------
Subject: prior art on Patent 7,743,336
Date: Wed, 13 Jul 2011 09:38:15 +0200

Hello Doug,

unfortunately I currently do not have the time, to really go through the
patents and the current PAG proposal in detail, but from a first look it
looks very closely related to the SymbianOS (formerly EPOC32) Security
Model. Those where introduced in SymbianOS v9.0 and definitely were used
before the mentioned patents were submitted.

Thus, they might potentially qualify as prior art. You can probably find
extensive documentation on that on the forum.nokia.com webpage (since
Symbian does not exist anymore).

The only thing that I can see that is missing is the "hash-validation
send over the internet" but that is quite common practice for
guaranteeing the integrity of downloaded packages (PGP/GPG, Maven, ...).
Internally Symbian is making use of the Hash validation for validating
the integrity of applications installed on external media (SD-cards,
Memory-stick, ...), since they could be manipulated outside the control
of the OS.

I have been working for Symbian and UIQ for many years, so have detailed
knowledge of how the SymbianOS Security Model works. So if you have any
questions about it, feel free to ask me.
Received on Tuesday, 19 July 2011 05:04:42 UTC

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