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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. Matthew Green‏ @matthew_d_green Apr 25

      2. More critically, Ozzie’s proposal relies on ‘a special chip inside the phone’ that bricks the phone if someone abuses the access mechanism. This is cute. It’s also (at present) a big fat giant elephant in the room.pic.twitter.com/swtkNTmSxg

      2 replies 15 retweets 93 likes
      Show this thread
    2. Matthew Green‏ @matthew_d_green Apr 25

      3. Let’s be more clear about this. All Apple phones have a similar chip inside of them. This chip is designed to prevent people from brute-forcing the passcode by limiting the number of attempts you can make. At present, every one of these chips appears to be completely broken.

      4 replies 24 retweets 95 likes
      Show this thread
    3. Matthew Green‏ @matthew_d_green Apr 25

      4. Specifically, there is some (as yet unknown) exploit that can completely bypass the internal protections provided by Apple’s Secure Enclave Processor. So effectively “the chip” Ozzie relies on is now broken.http://www.dailymail.co.uk/sciencetech/article-5613597/Police-claim-unlock-iPhone-using-mysterious-10-000-GrayKey-box.html …

      3 replies 20 retweets 92 likes
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    4. Matthew Green‏ @matthew_d_green Apr 25

      5. When you’re proposing a system that will affect the security of a billion Apple devices, and your proposal says “assume a lock nobody can break”, you’d better have some plan for building such a lock.

      4 replies 73 retweets 229 likes
      Show this thread
    5. Matthew Green‏ @matthew_d_green Apr 25

      6. From my perspective, this problem alone is sufficient to make the Ozzie proposal unworkable.

      5 replies 9 retweets 75 likes
      Show this thread
    6. Matthew Green‏ @matthew_d_green Apr 25

      7. ”Hold on,” I hear you cry, “so what if a few government agencies and hackers have a fancy 0day. That doesn’t mean anyone else will get it!” Have I got a headline for you. https://motherboard.vice.com/amp/en_us/article/qvx9jx/iphone-crackers-grayshift-graykey-leaked-code-extortion …pic.twitter.com/cPxW0Fv6c1

      3 replies 31 retweets 100 likes
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    7. Matthew Green‏ @matthew_d_green Apr 25

      8. So let’s recap. We are going to insert a backdoor into billions of devices. It’s security relies on a chip that is now broken. AND the people who broke that chip MAY HAVE LEAKED THEIR CODE TO EXTORTIONISTS ON THE INTERNET.

      5 replies 58 retweets 141 likes
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    8. Matthew Green‏ @matthew_d_green Apr 25

      9. The extortionists are apparently demanding 2 bitcoins.pic.twitter.com/gOKDhdWzHc

      3 replies 6 retweets 42 likes
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    9. Matthew Green‏ @matthew_d_green Apr 25

      10. While this is not personal to Ozzie and I don’t hold him responsible for this, this episode exhibits all the characteristics of ‘crypto backdoor’ proposals since time began.

      2 replies 13 retweets 100 likes
      Show this thread
    10. Rich Felker‏ @RichFelker Apr 25
      Replying to @matthew_d_green

      I do. And Wired. People like this need to be no-platformed. It's shameful that Wired, etc. give them opportunities to peddle bullshit that puts everyone in danger.

      1 reply 0 retweets 1 like
      Rich Felker‏ @RichFelker Apr 25
      Replying to @RichFelker @matthew_d_green

      Especially in this case where he's peddling something he filed for a patent on.

      1:24 PM - 25 Apr 2018
      0 replies 0 retweets 0 likes

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