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List:       kde-pim
Subject:    Re: [Kde-pim] Non-unique UIDs
From:       Reinhold Kainhofer <reinhold () kainhofer ! com>
Date:       2004-09-25 23:03:17
Message-ID: 200409260103.17651.reinhold () kainhofer ! com
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On Saturday 25 September 2004 23:45, Szombathelyi György wrote:
> Here's a document which describes it:
> http://ftp.ics.uci.edu/pub/ietf/webdav/uuid-guid/draft-leach-uuids-guids-01
>.txt

Yeah, thanks. The rfc is also quite verbose on how one can create globally 
unique IDs. The issues I have with these methods is that they include the 
exact time information, and some information on the machine where the 
incidence was created. Both can lead to significant trouble.

The second one can be used to determine from which computer you created the 
event. If you send invitations for several event, and use different 
computers, this can be used quite well to locate you and track down your work 
habbits. Of course, there will always be the IP and time available in the 
invitation mail when you sent the invitation, but that mail doesn't tell 
where you did the actuall planning of the meeting and your strategy (e.g. 
monday afternoon on your home computer. Oops, you should have been at work at 
that time...).

The first one (exact time information) is even more sensitive, because it 
tells when exactly you started planning something. In particular, it might 
tell the whole world that you worked on a strategy for some issue before you 
were actually supposed to (e.g. if you lay out a stratety how to boot out 
your competitors, etc.). In a "competitive" environment, this can backfire 
terribly to haunt you...

Please note that I'm not paranoid (I hope this mail doesn't sound like I am), 
but I really want to ensure that korganizer doesn't introduce any privacy 
issues.

Reinhold

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