Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?
    New to Twitter?
    Sign up
dguido's profile
Dan Guido
Dan Guido
Dan Guido
@dguido

Tweets

Dan Guido

@dguido

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

Brooklyn, NY
trailofbits.com
Joined April 2008

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list

    Under 100 characters, optional
    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Philippe Castonguay‏ @PhABCD 1 Mar 2019
      • Report Tweet
      • Report NetzDG Violation

      I've been a fan of @UniswapExchange for sometime now and last weekend I decided to re-write the contracts in Solidity instead of Vyper. All tests are now passing and next step will be to do some fuzz testing to ensure both implementations are equivalent.https://github.com/PhABC/uniswap-solidity …

      12 replies 11 retweets 115 likes
      Show this thread
    2. Philippe Castonguay‏ @PhABCD 1 Mar 2019
      • Report Tweet
      • Report NetzDG Violation

      Why is this useful at all? Vyper is a newer language than Solidity and hasn't been used as often in production. While the language has been audited thoroughly, I wanted to make my own little testing on a community project that deserves as many pairs of eyes it can find.

      2 replies 0 retweets 12 likes
      Show this thread
    3. Philippe Castonguay‏ @PhABCD 1 Mar 2019
      • Report Tweet
      • Report NetzDG Violation

      Fuzz testing both implementations will give us more confidence that Vyper is as secure as Solidity, at least when it comes to Uniswap. I'm fairly certain nothing strang will be found, but this was for fun and it gives me a reason to learn more about fuzzing frameworks :)

      2 replies 0 retweets 9 likes
      Show this thread
    4. Philippe Castonguay‏ @PhABCD 1 Mar 2019
      • Report Tweet
      • Report NetzDG Violation

      After talking with @fubuloubu, he recommended to use Echnida by @trailofbits which indeed seems like a great fit. Will soon write some simple invariants and then let it do its things. Anyone interested in helping is more than welcomed to reach out! https://github.com/trailofbits/echidna …

      2 replies 0 retweets 11 likes
      Show this thread
      Dan Guido‏ @dguido 2 Mar 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @PhABCD @fubuloubu @trailofbits

      Thanks Philippe! Let us know if we can help -- we have an open Slack to support Echidna and a training course on it next week at EthCC: https://www.eventbrite.com/e/blockchain-security-ethcc-tickets-55985965530 … (use "echidna" for 30% off the list price 🤗)

      7:03 AM - 2 Mar 2019
      • 2 Likes
      • The DePiance Podcast 🍕 Philippe Castonguay
      0 replies 0 retweets 2 likes

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info