Scott BuckleyUNSW Sydney, Robert SisonUNSW SydneyUniversity of Melbourne, Nils WistoffETH Zürich, Curtis MillarUNSW Sydney, Toby MurrayUniversity of Melbourne, Gerwin KleinProofcraftUNSW Sydney, Gernot HeiserUNSW Sydney
{"title":"Proving the Absence of Microarchitectural Timing Channels","authors":"Scott BuckleyUNSW Sydney, Robert SisonUNSW SydneyUniversity of Melbourne, Nils WistoffETH Zürich, Curtis MillarUNSW Sydney, Toby MurrayUniversity of Melbourne, Gerwin KleinProofcraftUNSW Sydney, Gernot HeiserUNSW Sydney","doi":"arxiv-2310.17046","DOIUrl":null,"url":null,"abstract":"Microarchitectural timing channels are a major threat to computer security. A\nset of OS mechanisms called time protection was recently proposed as a\nprincipled way of preventing information leakage through such channels and\nprototyped in the seL4 microkernel. We formalise time protection and the\nunderlying hardware mechanisms in a way that allows linking them to the\ninformation-flow proofs that showed the absence of storage channels in seL4.","PeriodicalId":501333,"journal":{"name":"arXiv - CS - Operating Systems","volume":"51 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - CS - Operating Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2310.17046","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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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