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ok, fine, this is neat. usage of /tmp still makes me



https://github.com/systemd/systemd/blob/master/docs/TEMPORARY_DIRECTORIES.md#common-namespace …pic.twitter.com/fle6LVXzfj
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Mostly unrelated, but it doesn’t look like macOS has “atomic” CLOEXEC APIs. You can set it with fctnl(...) after opening (as you can in Linux), but see open(2)‘s man pages for why that’s risky:pic.twitter.com/oAMXBTniBG
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I really enjoyed this lecture of his in particularhttps://youtu.be/ATmQj787Jcc
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https://youtu.be/19SlR_zjPxc Uses cases, usage, and impl details on pidfds, recently added to Linux. They’re stable ref to process, as opposed to ref by integer pid that can be recycled and changed out from under you, e.g. precondition in this slick bug https://bugs.chromium.org/p/project-zero/issues/detail?id=1692 …
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this is also interesting. You can gossip out public keys for peers whose keys you know (but recipients don’t), like in a group thread, and it looks like keys received this way can be used to encrypt in other contexts (tho they’re lest trusted in the fallback logic).pic.twitter.com/YcKiSX1G5R
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spec says “active adversaries” are out-of-scope (i.e. those that can tamper with mail headers). for ex, peer’s public key extracted from a header in their mail(s). the “youngest” public key is used (i.e. no TOFU/cross-signing is prescribed).pic.twitter.com/D5ajVMjn0M
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nothing more than an offhand comment, but the ECDSA sig verif routine in the ATECC508A lacked output authenticity (can bus middle bool). ATECC608A optionally MACs output. http://ww1.microchip.com/downloads/en/DeviceDoc/40001977A.pdf …pic.twitter.com/SGT5ZLLjYf
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Great talk on QNX: internals and exploit mitigationshttps://vimeo.com/270478308
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The discussion on this feature is pretty wild http://undeadly.org/cgi?action=article;sid=20160425145953 …pic.twitter.com/3q49TClV78
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Enjoyed this demo-heavy talk from
@brau_ner@stgraber from this year’s Linux Security Summit EU. It gives insight into past, present, future of Linux containers and how the primitives they’re constructed with work.https://youtu.be/5KydVxAvLOAPrikaži ovu nit -
This following talk from this year’s Linux Security Summit EU is a good pairing:https://youtu.be/4xJOjSZzqik?list=PLbzoR-pLrL6rF8E5yyknJzrVQaHeYszTR …
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(the talk was recently posted if talks are more peoples’ jam https://youtu.be/gLVmWA7LBjA )
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