Page 112 - slides.dvi
P. 112

•
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                    In
                                                                                              At
                                                          By
             (only
   Operating
                                                                                              the
                           e.g.
                                       no
                                                  leak
                                                                                       wire
                                            file
                                                  a
                                                                                                               Covert
                                system
                                       file
                    general,
                                                                               monitor
   Systems
                                                                                                     Information
                                                  bit
                                                          software:
             usually
   —
                                            exists
                                may
             a
                                                                                       tapping
                                                                        modification
                           TENEX
                                                                                              hardware
                                                                               signals
                                                                        to
                                                                 electromagnetic
                                       no
   Protection
                                                                                                     leakage
                                                  stream
                    guarding
                                                                               in
                                            page
                                                                                                               channels
                                                                                              level:
                                provide
                                                                                                     by
                                                  as:
                                       page
                           password
                                            fault
                                                                        hardware
                    against
                                                                 radiation
             consideration
                                       fault
                                                                               machine
                                                                 of
             for
                                statistics
                           cracker
                    covert
                                                                                                     side-effects:
                                       sleep
                                                                 devices
                           using
                                                                                                     lots
             military
                                       for
                                            compute
                                                                                                     of
                                       a
                                            a
                    channels
                    is
                           system
             types)
                                                                                                     fun!
                                       while
                                            while
                                       0
                                            1
                           provided
                    prohibitively
                           count
                           of
                    expensive.
                           page
                           faults
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