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BRIAN_____'s profile
Brian Smith
Brian Smith
Brian Smith
@BRIAN_____

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Brian Smith

@BRIAN_____

Code farmer. Security, crypto, performance, networking, usability. Rust, C++, C, Haskell, DSLs, etc. *ring*, webpki, crypto-bench, mozilla::pkix.

Honolulu & San Francisco
briansmith.org
Joined April 2008

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    1. Eric Mill‏ @konklone 24 Nov 2015
      Replying to @fugueish

      @fugueish @BRIAN_____ @sleevi_ So show whether the OS tells you that cert chains to a root set by a local override. Same confidence level.

      3 replies 0 retweets 0 likes
    2. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
      Replying to @konklone

      @konklone @fugueish @BRIAN_____ And further, you have to understand *how common this is* and how *low value that signal is*

      1 reply 0 retweets 0 likes
    3. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
      Replying to @sleevi_

      @konklone @fugueish @BRIAN_____ And those who derive value from it either do it *safely* (enterprise certs) or don't _want_ to harass users

      1 reply 0 retweets 0 likes
    4. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
      Replying to @sleevi_

      @konklone @fugueish @BRIAN_____ Any form of indicator is either a false-positive or will be hacked (by 3P as root) into false-negative

      1 reply 0 retweets 1 like
    5. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
      Replying to @sleevi_

      @konklone @fugueish @BRIAN_____ And unless you have strong binding of names, that information is worthless.

      1 reply 0 retweets 0 likes
    6. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
      Replying to @sleevi_

      @konklone @fugueish @BRIAN_____ You can't say "Avast is doing this" because you can't trust that it's Avast and not SuperFish 3.0 lying

      2 replies 0 retweets 0 likes
    7. Eric Mill‏ @konklone 24 Nov 2015
      Replying to @sleevi_

      @sleevi_ @fugueish @BRIAN_____ Totally, but you don't need to identify the actor. The information is: "uses a non-publicly trusted root".

      1 reply 0 retweets 0 likes
    8. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
      Replying to @konklone

      @konklone @fugueish @BRIAN_____ And I'm saying there are so many cases where that is 'legit' that as a filter for 'non-legit' it's bogus.

      1 reply 0 retweets 0 likes
    9. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
      Replying to @sleevi_

      @konklone @fugueish @BRIAN_____ And those most needed to be flagged non-legit can and will easily mask themselves as legit. Rule #2.

      2 replies 0 retweets 0 likes
      Brian Smith‏ @BRIAN_____ 24 Nov 2015
      Replying to @sleevi_

      @sleevi_ @konklone @fugueish How, if they aren't running code on the client? e.g. When I install my company's intranet root CA.

      12:55 PM - 24 Nov 2015
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Eric Mill‏ @konklone 24 Nov 2015
          Replying to @BRIAN_____

          @BRIAN_____ @sleevi_ @fugueish It doesn't have to be a 'legit-ness' filter. A company's root CA can be 'legit', still worth indicating.

          1 reply 0 retweets 0 likes
        3. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
          Replying to @konklone

          @konklone @BRIAN_____ @fugueish No. It isn't when you think through about how that indication is perceived or how it might be used, it fails

          1 reply 0 retweets 0 likes
        4. Ryan Sleevi‏ @sleevi_ 24 Nov 2015
          Replying to @sleevi_

          @konklone @BRIAN_____ @fugueish I get the appeal of "doing something", but just look not just at next step but three steps out. All doomed.

          0 replies 0 retweets 1 like
        5. End of conversation

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