Subtraction with borrow appears a useful pattern for Spectre bound check mitigation and can be fused with the bounds check branch for use in web sandbox implementations.
Monthly Archives: January 2018
Spectre bounds check data flow mitigation
Web browser vendors have started exploring the challenge of mitigating the Spectre vulnerabilities. Were bounds checks are necessarily being retained index masking is being explored. We offer one alternative that seems promising using a different approach, see the Spectre bounds check data flow mitigation