What am I getting myself in to with HDDErase

Discussion in 'privacy technology' started by Rilla927, Sep 17, 2010.

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  1. Rilla927

    Rilla927 Registered Member

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  2. Searching_ _ _

    Searching_ _ _ Registered Member

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    I haven't read that article, but have used HDDErase.exe on the UBCD for HDD's not SDD's.
    SDD's are a different technology and will have different requirements for completing a secure erasure than HDD's.

    Originally HDDErase.exe was available here Center for Magnetic Recording Research UC San Diego

    In the CMRR HDDErase literature, the removal and reinstallation of HDD's is for a condition of the BIOS called a freeze lock that prevents a HDD from being wiped by a rogue program/user.
    Since it requires physical access to overcome the freeze lock it limits potential damage.

    HDDErase.exe is just a program to access the Secure Erase Function built into HDD's since 2001.
    hdparm in Linux, from a LiveCD can do the same.

    If you're interested in really fast wiping, HDD's with built in encryption tend to support the Enhanced Secure Erase function which allows for a 1 terabyte drive to be wiped in less than 20 seconds.
     
  3. Rilla927

    Rilla927 Registered Member

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    Oh, okay, I got it. I was worried of getting locked out of the drive.

    I have a 500gig drive to wipe. All my drives were bought between 2003-2005 so I don't know if it has Enhanced Secure Erase or not. That would be awesome to be able to do it that fast.

    I have been using Dban and I'm sick of waiting kazillions of hours before I can touch it.
     
  4. dantz

    dantz Registered Member

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    You couldn't possibly erase that much data that quickly on a conventional hard drive. It's probably just erasing the encryption key.
     
  5. Searching_ _ _

    Searching_ _ _ Registered Member

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    It is easy enough to verify if just wiping an encryption key is what is occurring.

    Must have a HDD that has built in encryption.
    The HDD must support the Enhanced Secure Erase function.
    A hex editor to view before and after.

    No zeros and data is still on the drive.
     
  6. BoerenkoolMetWorst

    BoerenkoolMetWorst Registered Member

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    Enhanced Secure Erase is indeed just wiping the encryption key:
     
  7. Rilla927

    Rilla927 Registered Member

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    Does anyone know if HDD Erase wipes USB sticks? I have been searching the net and found nothing.
     
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