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Documents authored by Cecchetti, Ethan

Document
DOI: 10.4230/LIPIcs.ECOOP.2023.29
Semantics for Noninterference with Interaction Trees

Authors: Lucas Silver, Paul He, Ethan Cecchetti, Andrew K. Hirsch, and Steve Zdancewic

Published in: LIPIcs, Volume 263, 37th European Conference on Object-Oriented Programming (ECOOP 2023)

Abstract
Noninterference is the strong information-security property that a program does not leak secrets through publicly-visible behavior. In the presence of effects such as nontermination, state, and exceptions, reasoning about noninterference quickly becomes subtle. We advocate using interaction trees (ITrees) to provide compositional mechanized proofs of noninterference for multi-language, effectful, nonterminating programs, while retaining executability of the semantics. We develop important foundations for security analysis with ITrees: two indistinguishability relations, leading to two standard notions of noninterference with adversaries of different strength, along with metatheory libraries for reasoning about each. We demonstrate the utility of our results using a simple imperative language with embedded assembly, along with a compiler into that assembly language.
Cite as

Lucas Silver, Paul He, Ethan Cecchetti, Andrew K. Hirsch, and Steve Zdancewic. Semantics for Noninterference with Interaction Trees. In 37th European Conference on Object-Oriented Programming (ECOOP 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 263, pp. 29:1-29:29, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{silver_et_al:LIPIcs.ECOOP.2023.29,
  author =	{Silver, Lucas and He, Paul and Cecchetti, Ethan and Hirsch, Andrew K. and Zdancewic, Steve},
  title =	{{Semantics for Noninterference with Interaction Trees}},
  booktitle =	{37th European Conference on Object-Oriented Programming (ECOOP 2023)},
  pages =	{29:1--29:29},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-281-5},
  ISSN =	{1868-8969},
  year =	{2023},
  volume =	{263},
  editor =	{Ali, Karim and Salvaneschi, Guido},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2023.29},
  URN =		{urn:nbn:de:0030-drops-182227},
  doi =		{10.4230/LIPIcs.ECOOP.2023.29},
  annote =	{Keywords: verification, information-flow, denotational semantics, monads}
}
Document
Artifact
DOI: 10.4230/DARTS.9.2.6
Semantics for Noninterference with Interaction Trees (Artifact)

Authors: Lucas Silver, Paul He, Ethan Cecchetti, Andrew K. Hirsch, and Steve Zdancewic

Published in: DARTS, Volume 9, Issue 2, Special Issue of the 37th European Conference on Object-Oriented Programming (ECOOP 2023)

Abstract
Noninterference is the strong information-security property that a program does not leak secrets through publicly-visible behavior. In the presence of effects such as nontermination, state, and exceptions, reasoning about noninterference quickly becomes subtle. We advocate using interaction trees (ITrees) to provide compositional mechanized proofs of noninterference for multi-language, effectful, nonterminating programs, while retaining executability of the semantics. We develop important foundations for security analysis with ITrees: two indistinguishability relations, leading to two standard notions of noninterference with adversaries of different strength, along with metatheory libraries for reasoning about each. We demonstrate the utility of our results using a simple imperative language with embedded assembly, along with a compiler into that assembly language.
Cite as

Lucas Silver, Paul He, Ethan Cecchetti, Andrew K. Hirsch, and Steve Zdancewic. Semantics for Noninterference with Interaction Trees (Artifact). In Special Issue of the 37th European Conference on Object-Oriented Programming (ECOOP 2023). Dagstuhl Artifacts Series (DARTS), Volume 9, Issue 2, pp. 6:1-6:2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Article{silver_et_al:DARTS.9.2.6,
  author =	{Silver, Lucas and He, Paul and Cecchetti, Ethan and Hirsch, Andrew K. and Zdancewic, Steve},
  title =	{{Semantics for Noninterference with Interaction Trees (Artifact)}},
  pages =	{6:1--6:2},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2023},
  volume =	{9},
  number =	{2},
  editor =	{Silver, Lucas and He, Paul and Cecchetti, Ethan and Hirsch, Andrew K. and Zdancewic, Steve},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DARTS.9.2.6},
  URN =		{urn:nbn:de:0030-drops-182465},
  doi =		{10.4230/DARTS.9.2.6},
  annote =	{Keywords: verification, information-flow, denotational semantics, monads}
}
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