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    CyberFrog (froge@social.glitched.systems)'s status on Thursday, 15-Aug-2024 21:19:45 JSTCyberFrogCyberFrog
    in reply to
    • Soatok Dreamseeker

    @soatok@furry.engineer to be fair this happens more than it should, OpenSSL for example ships default fallback code which will do most of their crypto without any constant time instructions... this is a particularly big issue on RISC-V chips, see the below github issue.

    IMPORTANT DISCLAIMER: OpenSSL does this due to hardware limitations, not because they feel like doing it, unlike matrix devs ;)

    https://github.com/openssl/openssl/issues/20980

    In conversationabout 10 months ago from social.glitched.systemspermalink

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    1. Domain not in remote thumbnail source whitelist: opengraph.githubassets.com
      AES for RISC-V without Zkn extensions is not constant time · Issue #20980 · openssl/openssl
      From a report to openssl-security by Florian Sieck et al (edited for brevity): On RISC-V, OpenSSL, although offering an architecture-specific implementation, falls back to a T-table and S-box based...
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