----- Original Message -----
Sent: Thursday, March 25, 2004 2:20
PM
Subject: Re: Legal Notice on RFC3161 Uses
and their possible infringement against Glassey/Mcneil Patents(et al).
Folks,
Attached is the abstract for Todd's latest patent in this area, which he
alluded to in his posting to this list.
Since RFC 3161 makes no mention of using time stamp info for access
control, the likelihood of this RFC infringing seems questionable to me, but
that, of course is not a legal opinion.
If Todd wanted to follow established IETF procedure, as per RFC 2606 he should have sent this message to
ietf-ipr@xxxxxxxxx In fact Todd did post such a message for his previous IPR
assertions in this general area, but maybe he didn't feel that such posting
had sufficient dramatic effect.
Steve
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Controlling access to stored information based on
geographical location and date and time
Abstract
Access to stored information by a user is controlled
by comparing an actual geographic position and/or an actual date/time
with a geographic region and/or a date/time interval within which access
to the stored information is authorized. The actual geographic position
where the stored information is located, and the actual date/time can be
determined, for example, based on signals received at a receiver
supplying reliable position and time information, such as a GPS
receiver. Access to the stored information is authorized if the actual
geographic position and/or date/time falls within the authorized
geographic region and/or date/time interval. The position and date/time
information supplied by the receiver may be cryptographically signed and
encrypted.