Author

Merve Gülmez

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Preprint Aug 2026

PRISM: Lightweight Enclave Isolation with Prismatic Capabilities

Trusted execution environments (TEEs) protect sensitive code and data from external interference, but lack inherent memory safety. CHERI can enforce spatial memory safety at the object level. Attempts to establish a TEE using CHERI primitives suffer from (1) expensive capability revocation operations, (2) need to rely...

Merve Gülmez, Adam Caulfield, Håkan Englund et al. · 0 citations

Preprint Aug 2026

FRESCO: Complete and Scalable Temporal Safety for CHERI Application Processors

CHERI provides hardware-enforced spatial memory safety. While prior work extends it with heap temporal safety, stack use-after-return remains unaddressed. Existing defenses fall short: compiler analysis reliably catches only references that escape as function return values, while dynamic sanitizers impose overheads tha...

Merve Gülmez, Nils Jordan, Jia-Lu Zhang et al. · 0 citations