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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    Rich Felker‏ @RichFelker 15 Oct 2017

    Rich Felker Retweeted Kenn White

    How is there such a thing as "802.11 RNG"? If output is intended to bd treated as rnd, obviously you choose best algo not a fixed crap one.https://twitter.com/kennwhite/status/919529559392964608 …

    Rich Felker added,

    Kenn WhiteVerified account @kennwhite
    “802.11 RNG is flawed by design…This is confirmed by predicting randomly generated group keys on several platforms” https://lirias.kuleuven.be/bitstream/123456789/547640/1/usenix2016-wifi.pdf …
    11:04 AM - 15 Oct 2017
    • 6 Likes
    • the network is just an abstraction layer Peter Barfuss 𒀱 Ed Maste Nads Rosun william ricker Daniel Bittman
    4 replies 0 retweets 6 likes
      1. Rich Felker‏ @RichFelker 15 Oct 2017

        IOW I can't see how this is possibly an 802.11 bug and not an implementation bug.

        0 replies 0 retweets 0 likes
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      1. New conversation
      2. Josiah Worcester‏ @pikhq 15 Oct 2017
        Replying to @RichFelker

        It looks like 802.11 recommends a (poor) RNG, says "real implementations should use better", and... nobody did.

        2 replies 0 retweets 0 likes
      3. Rich Felker‏ @RichFelker 15 Oct 2017
        Replying to @pikhq

        Which part of the implementation chooses it? Hardware? Or sw/fw level like hostapd/wpa_supplicant stuff?

        1 reply 0 retweets 0 likes
      4. Josiah Worcester‏ @pikhq 15 Oct 2017
        Replying to @RichFelker

        Looks like software? I don't know, but the paper seems to suggest it is.

        2 replies 0 retweets 0 likes
      5. Josiah Worcester‏ @pikhq 15 Oct 2017
        Replying to @pikhq @RichFelker

        Yes, it is: hostapd is marked as "secure" because it uses /dev/random for its entropy, rather than 802.11 RNG.

        0 replies 1 retweet 2 likes
      6. End of conversation
      1. william ricker‏ @n1vux 15 Oct 2017
        Replying to @RichFelker

        yeah but most HW vendors only tweak the psuedo code in the standard's PoC, even the parts they shouldn't

        0 replies 0 retweets 0 likes
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      1. hackers.mu‏ @hackersdotmu 15 Oct 2017
        Replying to @RichFelker

        use something like chacha20 ?

        0 replies 0 retweets 0 likes
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