dskwipe

Securely wipe disk media.

Usage

dskwipe [options] device(s) [byte(s)]
 bytes can be one or more numbers between 0 to 255, use 0xNN for hexidecimal,
  0NNN for octal, r for random bytes, default is 0

Options:

 -l | --list      List available devices and exit
 -p | --passes n  Wipe device n times (default is 1)
 -d | --dod       Wipe device using US DoD 5220.22-M method (3 passes)
 -E | --doe       Wipe device using US DoE method (3 passes)
 -D | --dod7      Wipe device using US DoD 5200.28-STD method (7 passes)
 -S | --schneier  Wipe device using Bruce Schneier's method (7 passes)
 -b | --bci       Wipe device using German BCI/VSITR method (7 passes)
 -g | --gutmann   Wipe device using Peter Gutmann's method (35 passes)
 -1 | --pseudo    Use pseudo RNG (fast, not secure, this is the default)
 -2 | --windows   Use Windows RNG (slower, more secure)
 -k | --kilobyte  Use 1024 for kilobyte (default is 1000)
 -y | --yes       Start processing without waiting for confirmation
 -x | --exit mode Exit Windows. mode can be: poweroff, shutdown, hibernate,
                  logoff, reboot, or standby.
 -f | --force     Force poweroff/shutdown/logoff/reboot (WARNING: DATA LOSS!)
 -q | --quiet     Display less information (-qq = quieter, etc.)
 -z | --refresh n Refresh display every n seconds (default is 1)
 -n | --sectors n Write n sectors at once (1-65535, default is 64)
 -s | --start   n Start at relative sector n (default is 0)
 -e | --end     n End at relative sector n (default is last sector)
 -r | --read      Only read the data on the device (DOES NOT WIPE!)
 -i | --ignore    Ignore certain read/write errors
 -v | --version   Show version and copyright information and quit
 -? | --help      Show this help message and quit (-?? = more help, etc.)

Examples

 dskwipe -l                         & lists devices, and exit
 dskwipe \\.\PhysicalDrive1         & erase disk once using the byte 0
 dskwipe \Device\Ramdisk 1          & erase disk once using the byte 1
 dskwipe \Device\Ramdisk 0 255      & erase disk twice using bytes 0 then 255
 dskwipe --dod \Device\Ramdisk      & erase disk using DoD 5220.22-M method
 dskwipe \Device\Ramdisk 0 0xff r   & same as --dod (bytes 0, 255, weak random)
 dskwipe -p 2 \Device\Ramdisk 0 1   & erase disk 4 times using bytes 0/1/0/1
 dskwipe -p 2 --dod \Device\Ramdisk & erase disk twice using DoD method
 dskwipe -1 \Device\Ramdisk r r     & erase disk twice using weak RNG
 dskwipe -2 \Device\Ramdisk r r r r & erase disk four times using strong RNG

Here are some device names that have worked for me:

\\.\PhysicalDrive0
\\.\c:
\device\harddisk0\partition0
\device\harddisk0\partition1
\device\floppy0
\device\ramdisk

Verify a Release

To verify a release, download the .zip, .sha256, and .asc files for the release (replacing dskwipe-1.1-win32.zip with the release you are verifying):

$ wget https://github.com/rasa/dskwipe/releases/download/v1.1/dskwipe-1.1-win32.zip{,.sha256,.asc}

Next, check that sha256sum reports "OK":

$ sha256sum -c dskwipe-1.1-win32.zip.sha256
dskwipe-1.1-win32.zip: OK

Lastly, check that GPG reports "Good signature":

$ gpg --keyserver hkps.pool.sks-keyservers.net --recv-key 0x105a5225b6ab4b22
$ gpg --verify dskwipe-1.1-win32.zip.asc dskwipe-1.1-win32.zip
gpg:                using RSA key 0xFF914F74B4BB6EF3
gpg: Good signature from "Ross Smith II <ross@smithii.com>" [ultimate]
...

Contributing

To contribute to this project, please see CONTRIBUTING.md.

Bugs

To view existing bugs, or report a new bug, please see issues.

Changelog

To view the version history for this project, please see CHANGELOG.md.

License

This project is MIT licensed.

Contact

This project was created and is maintained by Ross Smith II

Feedback, suggestions, and enhancements are welcome.