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Web Low Level Language design

Monthly Archives: January 2018

Spectre bounds check mitigation using a subtraction with borrow

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.

Posted byadminJanuary 25, 2018Posted inUncategorised

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

Posted byadminJanuary 9, 2018January 9, 2018Posted inUncategorised

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  • Spectre Cascade – there may be no safe timer mitigation
  • Spectre bounds check mitigation using a subtraction with borrow
  • Spectre bounds check data flow mitigation

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