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matthew_d_green's profile
Matthew Green
Matthew Green
Matthew Green
@matthew_d_green

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Matthew Green

@matthew_d_green

I teach cryptography at Johns Hopkins.

Baltimore, MD
blog.cryptographyengineering.com
Joined January 2010

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    Matthew Green‏ @matthew_d_green Jan 21
    • Report Tweet

    I suspected this was true ever since Apple released iCloud Keychain and did nothing interesting with it. Government pressure works.https://www.reuters.com/article/us-apple-fbi-icloud-exclusive-idUSKBN1ZK1CT …

    4:30 AM - 21 Jan 2020
    • 256 Retweets
    • 450 Likes
    • Mutian Zhai ⏳The Solitary Reaper Gregg Amos Hind Altamimi🇸🇦 Ask Adam ✨ Crypto Ramble ✨ Raw Jade ahmadelewady أحمد العوضي Mo Info
    17 replies 256 retweets 450 likes
      1. New conversation
      2. Matthew Green‏ @matthew_d_green Jan 21
        • Report Tweet

        This is the short-term strategy of these “Apple v. FBI” cases and the pressure campaign on Facebook to delay e2e encryption: the government knows that once encryption is deployed, the advantage moves to the tech companies. So the plan is to delay deployments.

        3 replies 28 retweets 73 likes
        Show this thread
      3. Matthew Green‏ @matthew_d_green Jan 21
        • Report Tweet

        Engineers and project managers: this is why you don’t have time to delay and “get everything right” if you’re planning an e2e deployment. The chances that the political environment remains favorable go down as the time horizon increases.

        2 replies 32 retweets 99 likes
        Show this thread
      4. Matthew Green‏ @matthew_d_green Jan 21
        • Report Tweet

        This is what makes me nervous about Facebook’s current plans to deploy encryption in its messaging platforms: given where we are, and this long of a timeframe, I worry there is zero chance this makes it to deployment.https://www.google.com/amp/s/www.wired.com/story/facebook-messenger-end-to-end-encryption-default/amp …

        4 replies 11 retweets 57 likes
        Show this thread
      5. Matthew Green‏ @matthew_d_green Jan 21
        • Report Tweet

        Notice as well that Apple didn’t just abandon plans to encrypt iCloud backups by *default*. They even abandoned giving users the option to encrypt those backups. And due to the walled garden nature of iOS, there’s nothing you can do about it.

        9 replies 54 retweets 119 likes
        Show this thread
      6. Matthew Green‏ @matthew_d_green Jan 21
        • Report Tweet

        It was nice while it lasted, @Apple.pic.twitter.com/kYfZlDOU9q

        6 replies 46 retweets 162 likes
        Show this thread
      7. End of conversation
      1. New conversation
      2. Nicholas Weaver‏Verified account @ncweaver Jan 21
        • Report Tweet
        Replying to @matthew_d_green

        I still suspect it was actually mud puddle reasons. Backup to computer works perfectly well for those who are paranoid about the government. Better, in fact, because you can back up things locally that won't back up to the cloud.

        1 reply 1 retweet 4 likes
      3. Matthew Green‏ @matthew_d_green Jan 21
        • Report Tweet
        Replying to @ncweaver

        If they had included an optional “advanced” option I might believe that.

        2 replies 0 retweets 11 likes
      4. 3 more replies
      1. New conversation
      2. Davicho‏ @Davicho266 Jan 21
        • Report Tweet
        Replying to @matthew_d_green

        Can I just say I kind of love Googles middle finger to the government and apple? No prior warning to government agencies at allpic.twitter.com/la9TGqbTOm

        1 reply 0 retweets 5 likes
      3. Matthew Green‏ @matthew_d_green Jan 21
        • Report Tweet
        Replying to @Davicho266

        Yeah. I’d forgotten about this and missed the mention. Good for Google!

        0 replies 0 retweets 3 likes
      4. End of conversation
      1. New conversation
      2. ₿rian ⚡️Lockhart‏ @BrianLockhart Jan 21
        • Report Tweet
        Replying to @matthew_d_green @La__Cuen

        Funny how Apple’s own security docs say iCloud backups are encrypted... https://support.apple.com/en-us/HT202303 pic.twitter.com/F98SR3trGw

        1 reply 1 retweet 7 likes
      3. Damiano Galassi‏ @galad_ Jan 21
        • Report Tweet
        Replying to @BrianLockhart @matthew_d_green @La__Cuen

        They are encrypted, but Apple has got the keys. The difference is that Apple can’t decrypt your iCloud Keychain.

        1 reply 0 retweets 18 likes
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