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Michael Orlitzky <michael@××××××××.com> wrote: |
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>On 03/19/2013 11:28 PM, Michael Mol wrote: |
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>> |
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>> Not so much. The idea would be that you could power cycle the |
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>> device to get access to it again. The device would be read for the |
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>> keys at system bootup, but then would shut itself off after a few |
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>> minutes to prevent the keys from being read from disk. (There's |
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>> still the risk of them being read from the memory of the process |
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>> using them, but that's slightly more difficult, and security is all |
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>> about raising the bar.) |
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>> |
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> |
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>Eject the USB drive after five minutes? This raises the bar |
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>significantly, to "has tried to send the 'close CD tray' command to a |
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>USB stick before." |
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> |
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I don't think it is possible to un-eject a usb-drive without powercycling it. |
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And why wait 5 minutes to eject it? Simply do that as soon as the keys are read? |
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Extra option: |
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Stick the usbdisk driver as a module in a ramdisk and then rmmod it. |
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Remove the module from disk |
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And use module signing. From what I understand. The keys for that are generated at compile time? And you can delete them from the kernel sources after compiling. |
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-- |
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Joost |
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-- |
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Sent from my Android phone with K-9 Mail. Please excuse my brevity. |
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