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CATEGORIES:Computer Laboratory Opera Group Seminars
SUMMARY:Distributed Decentralised Event Flow Control - Dav
id Evans (Computer Laboratory)
DTSTART;TZID=Europe/London:20100323T143000
DTEND;TZID=Europe/London:20100323T153000
UID:TALK23147AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/23147
DESCRIPTION:Slides: available.\n\n\nEvent-based systems
are very useful when event producers\, consumers\,
and processors are distributed\, perhaps hosted b
y different entities where each is its own adminis
trative domain. In the past we have advocated deo
ntic logic to express policies that govern the sha
ring of data between such entities. Last week Dav
id Eyers introduced the DEFCon model which can pro
vide information flow control within one organisat
ion. Here I will present some ideas about extendi
ng this across organisation boundaries\, including
how one might interpret security tags (and labels
) in this context\, how tags and labels relate to
deontic agreements between organisations\, consequ
ent influence of tagged event transmission on the
state of compliance\, and what an implementation w
ithin SBus might look like.\n\n
LOCATION:Room FW11\, Computer Laboratory\, William Gates Bu
ilding
CONTACT:Tom Playford
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