Emergent Mind
Proving the Absence of Microarchitectural Timing Channels
(2310.17046)
Published Oct 25, 2023
in
cs.OS
,
cs.CR
,
and
cs.LO
Abstract
Microarchitectural timing channels are a major threat to computer security. A set of OS mechanisms called time protection was recently proposed as a principled way of preventing information leakage through such channels and prototyped in the seL4 microkernel. We formalise time protection and the underlying hardware mechanisms in a way that allows linking them to the information-flow proofs that showed the absence of storage channels in seL4.
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