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UID:DSC-853
DTSTART;TZID=Europe/Berlin:20110520T110000
SEQUENCE:1305876925
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20110520T120000
URL:https://dresden-science-calendar.de/calendar/de/detail/853
LOCATION:TUD Andreas-Pfitzmann-Bau\, Nöthnitzer Straße 4601069 Dresden
SUMMARY:Kauer: Techniques to reduce the TCB of an OS (Statusvortrag)
CLASS:PUBLIC
DESCRIPTION:Speaker: Bernhard Kauer\nInstitute of Speaker: Institut für Sy
 stemarchitektur\, Lehrstuhl Betriebssysteme\nTopics:\nInformatik\n Locatio
 n:\n  Name: TUD Andreas-Pfitzmann-Bau (INF 3105 (Beratungsraum\, 3. Etage)
 )\n  Street: Nöthnitzer Straße 46\n  City: 01069 Dresden\n  Phone: \n  F
 ax: \nDescription: Operating systems are large and very seldom bug free.  
 Thus they have a large TCB which can be exploited by an attacker.  One rea
 son for the ever increasing size of operating systems is that old applicat
 ions have to be supported forever.  The availability of virtualization fea
 tures in CPUs allows solve this issue by moving legacy code into virtual m
 achines.  However\, current virtualization environments have the same prop
 erties as OSes: they are itself large and error prone.  To increase the se
 curity of the virtual machines\, we build a virtualization environment fro
 m scratch that aimed for a minimal TCB.    In this talk I will introduce t
 he problem and present my contributions that lead to the TCB of NOVA that 
 is approximately an order of magnitude smaller than that of existing virtu
 alization environments.  I will describe how OSLO can be used to remove th
 e boot-code from the TCB\, how new implementation techniques minimize the 
 TCB of the VMM as well as the multi-server environment and how an external
  debugger can be used for to debug the system in a TCB-friendly way.    Be
 treuer: Prof. Dr. Hermann Härtig  Fachreferent: Prof. Dr. Christoph Fetze
 r
DTSTAMP:20260609T091845Z
CREATED:20110518T073532Z
LAST-MODIFIED:20110520T073525Z
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