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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. CopperheadOS‏ @CopperheadOS 1 Jul 2016
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      .@dangoodin001 In regards to http://arstechnica.com/security/2016/07/androids-full-disk-encryption-just-got-much-weaker-heres-why/ …, it's only the OEM / OS vendor with the signing keys. Google only has those for Nexus.

      2 replies 3 retweets 12 likes
    2. Dan Guido‏ @dguido 1 Jul 2016
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      Replying to @CopperheadOS @dangoodin001

      you have to trust more than 1 company with device security (yes), FDE key is stored in software (yes). LGTM.

      2 replies 0 retweets 0 likes
    3. CopperheadOS‏ @CopperheadOS 1 Jul 2016
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      Replying to @dguido @dangoodin001

      Google doesn't have the keys. Qualcomm doesn't have the keys. There is no second party able to flash firmware or OS.

      2 replies 0 retweets 0 likes
    4. Dan Guido‏ @dguido 1 Jul 2016
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      Replying to @CopperheadOS @dangoodin001

      As I said, people frequently assume that Google is in control. They're not. It's the OEM. This is news to many.

      1 reply 0 retweets 1 like
    5. CopperheadOS‏ @CopperheadOS 1 Jul 2016
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      Replying to @dguido @dangoodin001

      Yes, and that assumption should be corrected, but not by spreading another misunderstanding that also isn't correct.

      1 reply 0 retweets 0 likes
    6. Dan Guido‏ @dguido 1 Jul 2016
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      Replying to @CopperheadOS @dangoodin001

      "Since the key is available to TrustZone, the hardware makers can simply create and sign a TrustZone image"

      2 replies 0 retweets 0 likes
      Dan Guido‏ @dguido 1 Jul 2016
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      Replying to @dguido @CopperheadOS @dangoodin001

      hardware maker = OEM, so this is accurate?

      6:17 PM - 1 Jul 2016
      1 reply 0 retweets 0 likes
        1. CopperheadOS‏ @CopperheadOS 1 Jul 2016
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          Replying to @dguido @dangoodin001

          The article is correct in presenting hardware as the hardware maker. And the OEM flashes the fuses to set the keys.

          0 replies 0 retweets 0 likes
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