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Machine Assisted Proof of ARMv7 Instruction Level Isolation Properties
KTH Royal Institute of Technology, Sweden.
RISE, Swedish ICT, SICS, Security Lab. KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0003-3434-5640
KTH Royal Institute of Technology, Sweden.
2013 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we formally verify security properties of the ARMv7 Instruction Set Architecture (ISA) for user mode executions. To obtain guarantees that arbitrary (and unknown) user processes are able to run isolated from privileged software and other user processes, instruction level noninterference and integrity properties are provided, along with proofs that transitions to privileged modes can only occur in a controlled manner. This work establishes a main requirement for operating system and hypervisor verification, as demonstrated for the PROSPER separation kernel. The proof is performed in the HOL4 theorem prover, taking the Cambridge model of ARM as basis. To this end, a proof tool has been developed, which assists the verification of relational state predicates semi-automatically.

Place, publisher, year, edition, pages
2013, 9. p. 276-291, article id 8307
Keywords [en]
ARM instruction set, noninterference, user mode execution, kernel security, theorem proving
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-24275DOI: 10.1007/978-3-319-03545-1_18Scopus ID: 2-s2.0-84893128835OAI: oai:DiVA.org:ri-24275DiVA, id: diva2:1043355
Conference
Certified Programs and Proofs (CPP)
Projects
PROSPERAvailable from: 2016-10-31 Created: 2016-10-31 Last updated: 2020-12-01Bibliographically approved

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Schwarz, Oliver

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CiteExportLink to record
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