Towards (Really) Safe and Fast Confidential I/O

Hugo Lefeuvre, David Chisnall, Marios Kogias, Pierre Olivier

Research output: Contribution to conferencePaperpeer-review

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Confidential cloud computing enables cloud tenants to distrust their service provider. Achieving confidential computing solutions that provide concrete security guarantees requires not only strong mechanisms, but also carefully designed software interfaces. In this paper, we make the observation that confidential I/O interfaces, caught in the tug-of-war
between performance and security, fail to address both at a time when confronted to interface vulnerabilities and observability by the untrusted host. We discuss the problem of safe I/O interfaces in confidential computing, its implications and challenges, and devise research paths to achieve confidential I/O interfaces that are both safe and fast.
Original languageEnglish
Number of pages6
Publication statusPublished - 22 Jun 2023
Event19th Workshop on Hot Topics in Operating Systems - Brown University, Providence, Rhode Island, United States
Duration: 22 Jun 202324 Jun 2023
Conference number: XIX


Conference19th Workshop on Hot Topics in Operating Systems
Abbreviated titleHotOS'23
Country/TerritoryUnited States
CityProvidence, Rhode Island
Internet address


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