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Lee Duna to [email protected]English • 1 year ago

BitLocker encryption broken in less than 43 seconds with sub-$10 Raspberry Pi Pico — key can be sniffed when using an external TPM

www.tomshardware.com

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BitLocker encryption broken in less than 43 seconds with sub-$10 Raspberry Pi Pico — key can be sniffed when using an external TPM

www.tomshardware.com

Lee Duna to [email protected]English • 1 year ago
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BitLocker's reliance on a TPM for security is its own downfall in this specific exploit.
  • @[email protected]
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    -3•1 year ago

    Solution: Just encrypt it with a password.

    • BaroqueInMind
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      31•1 year ago

      Bit locker is a password controlled drive encryption. Am I being dumb or are you seriously saying that?

      • @[email protected]
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        26•
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        1 year ago

        I guess they mean use the password as part of the encryption key, or encrypt the key with the password. Bitlocker doesn’t use the user’s password in that way, which is why it can boot an encrypted system without user interaction. That part always seemed very sketchy to me.

        • @[email protected]
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          12•1 year ago

          FYI: You can set it to require a PIN + TPM, or even just a password eg using manage-bde -on c: -password.

          https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/manage-bde-on

          • @[email protected]
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            3•1 year ago

            Thanks, that sounds really useful. I’m guessing it won’t work unless you’re local admin though.

            • @[email protected]
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              4•1 year ago

              Yep, you’ll need local admin of course.

              • @[email protected]
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                -2•
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                1 year ago

                Which kind of makes it useless in many corporate environments where it’s most needed, since the users won’t be able to set their own password.

                • @[email protected]
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                  5•1 year ago

                  I mean, if it’s a corporate device then it’s really a policy IT should be setting - this can be easily be done via a GPO or Intune policy, where an elevated script can prompt the end-user for a password.

                  • @[email protected]
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                    1 year ago

                    Yarp. And when they forget it we use the 48 numerical recovery key found using the recovery ID that shows on the screen when you hit escape (from the bitlocker screen)

                  • @[email protected]
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                    1•1 year ago

                    It would be insane to let non admin change settings like this.

      • @[email protected]
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        10•1 year ago

        Yes.

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