Transcript Trust Domains Are Analogous to Unix File Permissions RETSINA Group Katia Joe OOORO XRXXR RROOR XXRRX O: Files created and owned by Katia.

Trust Domains Are Analogous to Unix File Permissions
RETSINA Group
Katia
Joe
OOORO
XRXXR
RROOR
XXRRX
O: Files created and owned by Katia. Joe cannot see them.
X: Files created and owned by Joe. Katia cannot see them.
R: Files that can be seen by anyone in the RETSINA Group.
Box: Shows creator / owner responsibilities. Only the owner of the box
can decide group membership of a file.
© 2002 Intelligent Software Agents Lab, CMU
God’s View of Trusted Information Sharing Paths
JTF Operation Binni
US Binni
UK Binni
US 82nd
Airborn
UK 3
Commando
Brigade
USS
Tarawa
HMS Ark
Royal
US Command
US Army
US 82nd Airborn
Rangers
US Navy
USS Tarawa
Marines
Subsurface Warfare
US Air Force
US TransCom
Gao Binni
UK Command
Gao
Observers
UK Army
52nd Lowland Brigade
Intelligence
Gao Command
Intelligence
Gao Observers
Gao Army
Palace Guard
UK Navy
HMS Ark Royal
UK 3 Commando Brigade
© 2002 Intelligent Software Agents Lab, CMU
Royal Air Force
Squadron 1
Squadron 2
US View of Trusted Information Sharing Paths
JTF Operation Binni
US Binni
UK Binni
US 82nd
Airborn
UK 3
Commando
Brigade
USS
Tarawa
HMS Ark
Royal
US Command
US Army
US 82nd Airborn
Rangers
US Navy
USS Tarawa
Marines
Subsurface Warfare
US Air Force
US TransCom
Gao Binni
Gao
Observers
© 2002 Intelligent Software Agents Lab, CMU
Gao View of Trusted Information Sharing Paths
JTF Operation Binni
US Binni
UK Binni
US 82nd
Airborn
UK 3
Commando
Brigade
USS
Tarawa
HMS Ark
Royal
Gao Binni
Gao
Observers
Gao Command
Intelligence
Gao Observers
Gao Army
Palace Guard
© 2002 Intelligent Software Agents Lab, CMU
US’s View After Gao is Expelled from Coalition
JTF Operation Binni
US Binni
UK Binni
US 82nd
Airborn
UK 3
Commando
Brigade
USS
Tarawa
HMS Ark
Royal
US Command
US Army
US 82nd Airborn
Rangers
US Navy
USS Tarawa
Marines
Subsurface Warfare
US Air Force
US TransCom
Gao Binni
© 2002 Intelligent Software Agents Lab, CMU
Gao’s View After Being Expelled from Coalition
Gao Command
Intelligence
Gao Observers
Gao Army
Palace Guard
© 2002 Intelligent Software Agents Lab, CMU