Triosecuris: Formally Verified Protection Against Speculative Control-Flow Hijacking

The work

AuthorsJonathan Baumann; Yonghyun Kim; Yan Farba
Editors
Typemisc
Year2026
Citekeybaumann2026triosecuris

Identifiers

arXiv2601.22978 from its landing_page_url

Related

Distinct fromjacobi2005automatic
Distinct fromkocher2019spectre
Distinct fromlau2026granite
Distinct frommelham1990formalizing
Distinct fromtan2023security

From bibtex.

Abstract

This paper introduces Triosecuris, a formally verified defense against Spectre BTB, RSB, and PHT that combines CET-style hardware-assisted control-flow integrity with compiler-inserted speculative load hardening (SLH). Triosecuris is based on the novel observation that in the presence of CET-style protection, we can precisely detect BTB misspeculation for indirect calls and RSB misspeculation for returns and set the SLH misspeculation flag. We formalize Triosecuris as a transformation in Rocq and provide a machine-checked proof that it achieves relative security: any transformed program running with speculation leaks no more than what the source program leaks without speculation. This strong security guarantee applies to arbitrary programs, even those not following the cryptographic constant-time programming discipline.

A copy is held

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How it got here

How it got hereagent via bibtex
Added2026-09-17 06:25 UTC
Approved bya person 2026-09-17 16:58 UTC

Cite it as

@misc{baumann2026triosecuris,
  title        = {Triosecuris: Formally Verified Protection Against Speculative Control-Flow Hijacking},
  author       = {Jonathan Baumann and Yonghyun Kim and Yan Farba},
  year         = {2026},
}

This record lives at https://refs.drheap.org/baumann2026triosecuris/ and will keep doing so.