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bascule's profile
Tony Arcieri
Tony Arcieri
Tony Arcieri
@bascule

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Tony Arcieri

@bascule

Co-founder @iqlusioninc, formerly @square @chain. Cryptography dilettante, polyglot programmer, key management wrangler, and infrastructure security specialist

San Francisco, CA
tonyarcieri.com
Joined May 2007

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    1. Linus Nordberg‏ @ln4711 4 Mar 2015
      Replying to @bascule

      @bascule @taoeffect why would all be required? anybody can submit certs to logs.

      1 reply 0 retweets 0 likes
    2. Tony Arcieri‏ @bascule 4 Mar 2015
      Replying to @ln4711

      @ln4711 @taoeffect leaving a permanent audit trail of misissuance, so hopefully the target domain holder can discover it

      1 reply 0 retweets 0 likes
    3. Linus Nordberg‏ @ln4711 4 Mar 2015
      Replying to @bascule

      @bascule @taoeffect couldn't that be done with zero CA:s on board? domain owners and clients could submit.

      2 replies 0 retweets 0 likes
    4. Tony Arcieri‏ @bascule 4 Mar 2015
      Replying to @ln4711

      @ln4711 @taoeffect CT really needs to be ubiquitous for it to have the right UX for users i.e. show scary bar unless audit logs are present

      1 reply 0 retweets 0 likes
    5. Tony Arcieri‏ @bascule 4 Mar 2015
      Replying to @bascule

      @ln4711 @taoeffect right now audit log info is tucked away in Chrome because nobody is using CT so it's unhelpful to users

      1 reply 0 retweets 0 likes
    6. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
      Replying to @bascule

      @bascule @ln4711 And I’d argue it would be mostly unhelpful even if everyone used CT. :P

      1 reply 0 retweets 0 likes
    7. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
      Replying to @taoeffect

      @bascule @ln4711 b/c: "Best case scenario: mis-issuance detected after damage has been done. The CA blames hackers.”https://github.com/okTurtles/dnschain/blob/master/docs/Comparison.md …

      2 replies 0 retweets 0 likes
    8. Tony Arcieri‏ @bascule 4 Mar 2015
      Replying to @taoeffect

      @taoeffect @ln4711 that's the worst case scenario. Best case attacking CA doesn't submit the cert to the logs and user deterred by warning

      1 reply 0 retweets 0 likes
    9. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
      Replying to @bascule

      @bascule @ln4711 What I described is the best case scenario, even if CA submits to logs. Remember, it doesn't matter if the cert is in a log

      1 reply 0 retweets 0 likes
    10. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
      Replying to @taoeffect

      @bascule @ln4711 the MITM attack can still happen undetected by clients. And so therefore, again, that’s the best case scenario.

      1 reply 0 retweets 0 likes
      Tony Arcieri‏ @bascule 4 Mar 2015
      Replying to @taoeffect

      @taoeffect @ln4711 in the event of a misissued cert that isn't in the logs, browsers can show a scary address bar...

      11:44 AM - 4 Mar 2015
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Tony Arcieri‏ @bascule 4 Mar 2015
          Replying to @bascule

          @taoeffect @ln4711 ...that only helps in a world where everyone is using CT though

          1 reply 0 retweets 0 likes
        3. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
          Replying to @bascule

          @bascule @ln4711 Right… so they would put it in the log so the warning didn’t appear.

          1 reply 0 retweets 0 likes
        4. Tony Arcieri‏ @bascule 4 Mar 2015
          Replying to @taoeffect

          @taoeffect @ln4711 then the target domain can detect it and prove misissuance

          1 reply 0 retweets 0 likes
        5. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
          Replying to @bascule

          @bascule @ln4711 Right, and supposing they proactively monitor all the logs and do detect it, we've agreed upon the best case scenario.

          1 reply 0 retweets 0 likes
        6. Tony Arcieri‏ @bascule 4 Mar 2015
          Replying to @taoeffect

          @taoeffect @ln4711 so to misissue certs under CT, you just need to burn a CA? ;)

          1 reply 0 retweets 0 likes
        7. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
          Replying to @bascule

          @bascule @ln4711 You don't need to do anything significantly different from today's existing system.

          2 replies 0 retweets 1 like
        8. Tony Arcieri‏ @bascule 4 Mar 2015
          Replying to @taoeffect

          @taoeffect @ln4711 a CA has to provide undeniable proof they misissued a cert for it to be trusted…

          1 reply 0 retweets 0 likes
        9. Greg Slepak @taoeffect@mstdn.io‏ @taoeffect 4 Mar 2015
          Replying to @bascule

          Greg Slepak @taoeffect@mstdn.io Retweeted Greg Slepak @taoeffect@mstdn.io

          @bascule @ln4711 At this point, we are just emphatically agreeing on the best case scenario mentioned in:https://twitter.com/taoeffect/status/573199559725219840 …

          Greg Slepak @taoeffect@mstdn.io added,

          Greg Slepak @taoeffect@mstdn.io @taoeffect
          Replying to @taoeffect
          @bascule @ln4711 b/c: "Best case scenario: mis-issuance detected after damage has been done. The CA blames hackers.” https://github.com/okTurtles/dnschain/blob/master/docs/Comparison.md …
          1 reply 0 retweets 0 likes
        10. 2 more replies

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