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Sun 20 - Fri 25 October 2019 Athens, Greece
Wed 23 Oct 2019 18:33 - 18:45 at Foyer - Competition - Round 1

CHERI is an instruction set extension that adds capability-based addressing. With capability-based addressing, forgeable pointers are replaced by capabilities. Programs have to be able to show they possess an appropriate capability before they can access a memory location.

Linear capabilities are an extension of the idea of regular capabilities. Just like regular capabilities they cannot be forged. Unlike regular capabilities, they additionally cannot be copied or duplicated in any way. Linear capabilities allow us to enforce certain security principles. They can be used to implement a secure calling convention called StkTokens.

In this work we will be designing an ISA extension for CHERI so it can support linear capabilities. We define the semantics of the new and modified instructions. We will also extend QEMU to support this extension. This will then allow us to test our extension with a few basic test programs. While doing this, we pose several questions one should consider when designing an extension of this kind, and propose some possible solutions.

This program is tentative and subject to change.

Wed 23 Oct

18:00 - 19:30: SRC - Competition - Round 1 at Foyer
splash-2019-SRC18:00 - 18:11
Beatriz SouzaFederal University of Campina Grande
splash-2019-SRC18:11 - 18:22
Kalliopi Evangelia StavrouliaCyprus University of Technology, Andreas LanitisCyprus University of Technology
splash-2019-SRC18:22 - 18:33
Dominik AumayrJohannes Kepler University Linz, Austria
splash-2019-SRC18:33 - 18:45
Aaron LippeveldtsVrije Universiteit Brussel, Dominique DevrieseVrije Universiteit Brussel
splash-2019-SRC18:45 - 18:56
Muna AltherwiSouthampton University
splash-2019-SRC18:56 - 19:07
Florian LatifiJohannes Kepler University Linz
DOI Pre-print
splash-2019-SRC19:07 - 19:18
Samuel EstepLiberty University, Jenna WiseCarnegie Mellon University, Jonathan AldrichCarnegie Mellon University, Éric TanterUniversity of Chile & Inria Paris, Johannes BaderFacebook
splash-2019-SRC19:18 - 19:30
Maarten P. SijmDelft University of Technology