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.

For the best Twitter experience, please use Microsoft Edge, or install the Twitter app from Microsoft Store.

  • 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
dinodaizovi's profile
Dino A. Dai Zovi
Dino A. Dai Zovi
Dino A. Dai Zovi
@dinodaizovi

Tweets

Dino A. Dai Zovi

@dinodaizovi

Personal account. Securing @CashApp at @Square. Prev: Co-founder/CTO @Capsule8, @TrailofBits. “The Mac Hacker’s Handbook,” “iOS Hacker’s Handbook.” (he/him)

Brooklyn, New York
theta44.org
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.

    Dino A. Dai Zovi‏ @dinodaizovi Jan 25
    • Report Tweet

    The claim in the FTI forensics report on Bezos’ iPhone that, “due to end-to-end encryption employed by WhatsApp, it is virtually impossible to decrypt the contents of the downloader [.enc file]...” bugged me so much that I coded up how to do it:https://github.com/ddz/whatsapp-media-decrypt …

    10:48 PM - 25 Jan 2020
    • 1,179 Retweets
    • 2,754 Likes
    • People are monsters. Todd H Folafunmi markus_ AvkashK Hugo Fortier muuk Olli Siebelt Gustavo Sandoval
    42 replies 1,179 retweets 2,754 likes
      1. Dino A. Dai Zovi‏ @dinodaizovi Jan 28
        • Report Tweet

        Updated the README for my WhatsApp media decryption tool with a FAQ:https://github.com/ddz/whatsapp-media-decrypt#faq …

        1 reply 3 retweets 7 likes
        Show this thread
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. J‏ @justinrwlynn Jan 25
        • Report Tweet
        Replying to @dinodaizovi @isithran

        Now that's doing a service - exposing nonsense from seemingly competent sources.

        1 reply 0 retweets 32 likes
      3. Dino A. Dai Zovi‏ @dinodaizovi Jan 26
        • Report Tweet
        Replying to @justinrwlynn @isithran

        Thanks! I just think that it’s important for important public debates that information is factually accurate.

        1 reply 1 retweet 29 likes
      4. 2 more replies
      1. New conversation
      2. avuko‏ @avuko Jan 26
        • Report Tweet
        Replying to @dinodaizovi

        To quote a colleague: Don’t say “It can’t be done” if you really mean “I don’t know how to do it”. Excellent work.

        2 replies 14 retweets 190 likes
      3. Dino A. Dai Zovi‏ @dinodaizovi Jan 26
        • Report Tweet
        Replying to @avuko

        Thanks! As you can see from the repo, my code is all just “glue”, all of the hard work reverse engineering and re-implementation work had already been done in other open source repos.

        0 replies 2 retweets 56 likes
      4. End of conversation
      1. New conversation
      2. Nicole Perlroth‏Verified account @nicoleperlroth Jan 26
        • Report Tweet
        Replying to @dinodaizovi

        Can you send this to FTI instead?

        1 reply 0 retweets 13 likes
      3. 2 more replies
      1. New conversation
      2. Ruud Schramp‏ @idafanatic Jan 26
        • Report Tweet
        Replying to @dinodaizovi

        Nice work, compliments! Haven't read the report itself, so hard to draw conclusions for me... was the key still recoverable from the database in the Bezos case? Because it may have been the first thing to remove.

        1 reply 0 retweets 1 like
      3. Dino A. Dai Zovi‏ @dinodaizovi Jan 26
        • Report Tweet
        Replying to @idafanatic

        Thanks! Unclear from the report, there was no indication whether or not they knew that the key was in the ZMEDIAKEY column. Agree that removing that would be sneaky for malware to do.

        1 reply 0 retweets 5 likes
      4. 2 more replies
      1. New conversation
      2. Solar Designer‏ @solardiz Jan 27
        • Report Tweet
        Replying to @dinodaizovi @singe

        Do I get it right that the encryption key is encoded in the filename (not surprised), and that filename is stored on WhatsApp servers (am surprised)? So there's effectively no E2E encryption for media, right? Is this consistent with what (lack of) security WhatsApp claims it has?

        3 replies 0 retweets 4 likes
      3. Dino A. Dai Zovi‏ @dinodaizovi Jan 27
        • Report Tweet
        Replying to @solardiz @singe

        What I found corresponds to the excerpt in the security design whitepaper Ivan screenshotted and posted below. The SHA256 of the .enc file as well as the key are stored in the sqlite file after being received from an encrypted message. My tool retrieves them and decrypts file.

        0 replies 1 retweet 4 likes
      4. 2 more replies

    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