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POPL 2021
Sun 17 - Fri 22 January 2021 Online
Thu 21 Jan 2021 16:20 - 16:30 at POPL-A - Security

Type systems designed for information-flow control commonly use a program-counter label to track the sensitivity of the context and rule out data leakage arising from effectful computation in a sensitive context. Currently, type-system designers reason about this label informally except in security proofs, where they use ad-hoc techniques. We develop a framework based on monadic semantics for effects to give semantics to program-counter labels. This framework leads to three results about program-counter labels. First, we develop a new proof technique for noninterference, the core security theorem for information-flow control in effectful languages. Second, we unify notions of security for different types of effects, including state, exceptions, and nontermination. Finally, we formalize the folklore that program-counter labels are a lower bound on effects. We show that, while not universally true, this folklore has a good semantic foundation.

Thu 21 Jan

Displayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change

16:00 - 17:00
SecurityPOPL at POPL-A
16:00
10m
Talk
Efficient and Provable Local Capability Revocation using Uninitialized Capabilities
POPL
Aina Linn Georges Aarhus University, Armaël Guéneau Aarhus University, Thomas Van Strydonck KULeuven, Amin Timany Aarhus University, Alix Trieu Aarhus University, Sander Huyghebaert Vrije Universiteit Brussel, Dominique Devriese Vrije Universiteit Brussel, Lars Birkedal Aarhus University
Link to publication DOI Pre-print
16:10
10m
Talk
Mechanized Logical Relations for Termination-Insensitive Noninterference
POPL
Simon Oddershede Gregersen Aarhus University, Johan Bay Aarhus University, Amin Timany Aarhus University, Lars Birkedal Aarhus University
Link to publication DOI Pre-print
16:20
10m
Talk
Giving Semantics to Program-Counter Labels via Secure Effects
POPL
Andrew K. Hirsch Max Planck Institute for Software Systems, Ethan Cecchetti Cornell University
Link to publication DOI
16:30
10m
Talk
Automata and Fixpoints for Asynchronous Hyperproperties
POPL
Jens Oliver Gutsfeld Westfälische Wilhelm-Universität Münster (WWU), Germany, Markus Müller-Olm University of Münster, Christoph Ohrem Westfälische Wilhelms-Universität Münster (WWU), Germany
Link to publication DOI
16:40
10m
Talk
Automatically Eliminating Speculative Leaks from Cryptographic Code with BladeDistinguished Paper
POPL
Marco Vassena CISPA Helmholtz Center for Information Security, Craig Disselkoen University of California at San Diego, USA, Klaus v. Gleissenthall Vrije Universiteit Amsterdam, Netherlands, Sunjay Cauligi University of California at San Diego, USA, Rami Gökhan Kıcı University of California at San Diego, USA, Ranjit Jhala University of California at San Diego, Dean Tullsen University of California at San Diego, USA, Deian Stefan University of California at San Diego, USA
Link to publication DOI Pre-print
16:50
10m
Break
Break
POPL