Sapper: A Language for Hardware-Level Security Policy Enforcement

Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
Privacy and integrity are important security concerns. These concerns are addressed by controlling information flow, i.e., restricting how information can flow through a system. Most proposed systems that restrict information flow make the implicit assumption that the hardware used by the system is fully \"Correct\" and that the hardware's instruction set accurately describes its behavior in all circumstances. The truth is more complicated: modern hardware designs defy complete verification; many aspects of the timing and ordering of events are left totally unspecified; and implementation bugs present themselves with surprising frequency.

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