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dguido's profile
Dan Guido
Dan Guido
Dan Guido
@dguido

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Dan Guido

@dguido

CEO @trailofbits, organizer @EmpireHacking, director @hack_secure. Open DMs.

Brooklyn, NY
trailofbits.com
Joined April 2008

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    1. Bernhard Mueller‏ @muellerberndt Jul 9

      Bernhard Mueller Retweeted Panvala

      Systems that rely on trusted authorities can be compromised with low cost (case in point: SSL/TLS). Panvala solves this problem by decentralizing trust through a token-curated registry.https://twitter.com/PanvalaMark/status/1016337610787180545 …

      Bernhard Mueller added,

      Panvala @PanvalaMark
      Panvala is a decentralized system that helps participants mark smart contracts that are safer than others. https://medium.com/panvala/introducing-panvala-8cb9db97c316 …
      Show this thread
      1 reply 0 retweets 4 likes
    2. Dan Guido‏ @dguido Jul 9
      Replying to @muellerberndt

      This pushes a HUGE amount of risk onto security reviewers and away from the contract owners. Won't people just attack or sue the parties voting in support of contracts when bugs are found later?pic.twitter.com/80u0HHFa9D

      3 replies 0 retweets 0 likes
    3. Bernhard Mueller‏ @muellerberndt Jul 9
      Replying to @dguido

      The Panvala mark means that a majority of participants agree that certain standards have been followed. It's the task of the community to ensure that the standards are sufficient to prevent bugs (e.g. cross checking audit-reports).

      1 reply 0 retweets 0 likes
    4. Bernhard Mueller‏ @muellerberndt Jul 9
      Replying to @muellerberndt @dguido

      But as we all know, there's never a 100% guarantee. The TCR reflects the opinion of the security community as a whole (hopefully including @TrailofBits). Consumer reports is a good analogy.

      2 replies 0 retweets 1 like
    5. Dan Guido‏ @dguido Jul 9
      Replying to @muellerberndt @trailofbits

      Consumer Reports tells you "We like it" or "It works", not "It withstands sustained, active attack." UL is closer, though they also do not incorporate adversary-induced failure cases in their certifications afaik.

      1 reply 0 retweets 0 likes
    6. Dan Guido‏ @dguido Jul 9
      Replying to @dguido @muellerberndt @trailofbits

      Thinking about it more, I think the closest analogy is PCI Compliance.

      1 reply 0 retweets 0 likes
    7. Bernhard Mueller‏ @muellerberndt Jul 9
      Replying to @dguido @trailofbits

      The wording and exact specification for the mark(s) will need some fine-tuning. Perhaps "compliant" or "approved" might be more fitting than "safe"?

      1 reply 0 retweets 0 likes
      Dan Guido‏ @dguido Jul 9
      Replying to @muellerberndt @trailofbits

      I'll watch how this evolves over time! I think you've got to be cognizant of the position this puts reviewers in, and the type and granularity of the data they report rather than simply "safe."

      9:40 AM - 9 Jul 2018
      • 1 Like
      • Bernhard Mueller
      0 replies 0 retweets 1 like

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