# Information Flow Tracking for Heterogeneous Compartmentalized Software

*2023-10-01 — note*


Paper on DIFC Deluminator interface at [RAID 2023](https://dl.acm.org/doi/10.1145/3607199.3607235). Zahra led this work on information flow tracking for heterogeneous compartmentalized software environments. The key contribution is recognizing that modern systems increasingly use diverse compartmentalization mechanisms - processes, SGX enclaves, TrustZone Trusted Apps, and intra-address space compartments - but existing abstractions assume single-compartment models. Deluminator provides OS abstractions and a userspace framework to enable extensible, fine-grained information flow tracking across these heterogeneous compartments. We implemented it on Linux for both ARM and x86-64, with evaluation showing reasonable overhead (7-29% on average) that makes it practical for real-world use.
Synopsis: RAID 2023 paper on Deluminator interface for decentralized information flow control in compartmentalized software.
Words: 96

## Related

- [Information Flow Tracking for Heterogeneous Compartmentalized Software](https://anil.recoil.org/papers/2023-raid-deluminator) (paper, 2023-10-01)

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Canonical: https://anil.recoil.org/notes/2023-raid-deluminator-1
Type: note
Tags: security, information-flow, compartmentalization, systems