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113 lines
3.2 KiB
Markdown
113 lines
3.2 KiB
Markdown
# nwipe
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nwipe is a command that will securely erase disks using a variety of
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recognised methods which include:
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* Quick erase - Fills the device with zeros, one round only.
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* RCMP TSSIT OPS-II - Royal Candian Mounted Police Technical Security Standard, OPS-II
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* DoD Short - The American Department of Defense 5220.22-M short 3 pass wipe. 1,2,& 7.
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* DoD 5220.22M - The American Department of Defense 5220.22-M full 7 pass wipe. 1-7
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* Gutmann Wipe - Peter Gutmann's method. (Secure Deletion of Data from Magnetic and Solid-State Memory)
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* PRNG Stream - Fills the device with a stream from the PRNG.
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* Verify only - This method only reads the device and checks that it is all zero.
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It also includes the following pseudo random number generators:
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* mersenne
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* twister
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* isaac
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It is a fork of the dwipe command used by
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Darik's Boot and Nuke (dban). nwipe is included with partedmagic and
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ShredOS if you want a quick and easy bootable CD or USB version.
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Nwipe was created out of a need to run the DBAN dwipe command outside
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of DBAN, in order to allow its use with any host distribution, thus
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giving better hardware support.
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## Compiling & Installing
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`nwipe` requires the following libraries to be installed:
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* ncurses
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* pthreads
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* parted
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### Debian & Ubuntu prerequisites
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If you are compiling `nwipe` from source, the following libraries will need to be installed first:
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```bash
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sudo apt install \
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build-essential \
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pkg-config \
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automake \
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libncurses5-dev \
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autotools-dev \
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libparted-dev \
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dmidecode
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```
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### Fedora prerequisites
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```bash
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sudo bash
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dnf update
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dnf groupinstall "Development Tools"
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dnf groupinstall "C Development Tools and Libraries"
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yum install ncurses-devel
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yum install parted-devel
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yum install dmidecode
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```
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Note. dmidecode is optional, it provides SMBIOS/DMI host data to stdout or the log file.
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### Compilation
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For a development setup, see [the hacking section below](#Hacking).
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First create all the autoconf files:
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```
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./init.sh
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```
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Then compile & install using the following standard commands:
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```
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./configure
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make
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make install
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```
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### Hacking
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If you wish to submit pull requests to this code we would prefer you enable all warnings when compiling.
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This can be done using the following compile commands:
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```
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./configure --prefix=/usr CFLAGS='-O0 -g -Wall -Wextra'
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make
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make install
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```
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The `-O0 -g` flags disable optimisations. This is required if you're debugging with
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`gdb` in an IDE such as Kdevelop. With these optimisations enabled you won't be
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able to see the values of many variables in nwipe, not to mention the IDE won't step
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through the code properly.
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The `-Wall` and `-Wextra` flags enable all compiler warnings. Please submit code with zero warnings.
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Once done with your coding then the released/patch/fixed code can be compiled,
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with all the normal optimisations, using:
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```
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./configure --prefix=/usr && make && make install
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```
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## Bugs
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Bugs can be reported on GitHub:
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https://github.com/martijnvanbrummelen/nwipe
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## License
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GNU General Public License v2.0
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