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Re: <s>xterm command</s> script to wipe <s>all</s> sensitive user data?
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I tell you what, merely rm -f is not enough to protective your hard-earned data from law-enforcing agents. Encrypted data is also out of question, as they've all the method to make you spew out the passcodes, along with your blood. What you need is to overwrite /dev/mmcblk0p1 with careful selected pattern algorithms that are compliant with DoD 5520.22-M or NNSA NAP-14.x, for at least 7 times. Failing to do so, your erased data can be recovered with very simple forensic data recovery equipment in just 5 minutes. There's a opensource program called scrub which is implemented with the necessary algorithm to safely erase your data. However, at time of speak the officially scrub download area seems to be removed from public viewing. I'm afraid somebody is onto you. So now you need a quick script for the emergency: Code:
umount /dev/mmcblk0p1 Hope this helps. P.S. Be honest, you just want to keep your secret from your wife do you? In this case running that dd command above once is okay, unless she's working for DoD or FBI. |
Re: xterm command to wipe all user data?
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Re: <s>xterm command</s> script to wipe <s>all</s> sensitive user data?
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hahaha love it! but a little too extreme, perhaps overwriting the deleted segments a few times may be prudent to satisfy paranoia, but a ten miute jog waiting on complete digital annhialation is just not on the agenda! Quote:
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Re: <s>xterm command</s> script to wipe <s>all</s> sensitive user data?
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sudo apt-get -y update sudo apt-get dselect-upgrade This installs them automatically without having to open an app manager and select them individually. Just to be clear this will not backup and restore app user data, it will just install all the apps you had before, fresh. |
Re: script to wipe all sensitive user data - guinea pigs (/lemmings) wanted, apply within!
I would imagine there is some wear leveling in place for the memory, so when you try to selectivly overwrite a given block, the controller will automatically redirect that write to the least used blocks instead.
overwriting all free space is needed to prevent easy recovery |
Re: <s>xterm command</s> script to wipe <s>all</s> sensitive user data?
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data remanence explains it. |
Re: <s>xterm command</s> script to wipe <s>all</s> sensitive user data?
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but still I think it's still better to have a secure erase tool (even 1 pass zero bytes) rather than stuck with standard 'rm' where all deleted files can be easily spotted directly from the device using testdisk or any file recovery tool available on maemo |
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