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04fe9f217e
I could not find the original specification of this standard, although many proprietary implementations exist (or claim to exist). Also there are many 3rd-party descriptions of the method, which often differ in one or another detail, but after some reading I could conclude that the most likely definition should be as follows: 1. Fill the device with zeroes, do not verify. 2. Fill the device with ones, do not verify. 3. Fill the device with a PRNG stream, do verify. In other words, this is a simplified version of nwipe's "dodshort".
111 lines
3.2 KiB
Groff
111 lines
3.2 KiB
Groff
.TH NWIPE "1" "December 2019" "nwipe version 0.26" "User Commands"
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.SH NAME
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nwipe \- securely erase disks
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.SH SYNOPSIS
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.B nwipe
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[\fIoptions\fR] [\fIdevice1\fR] [\fIdevice2\fR] ...
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.SH DESCRIPTION
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nwipe is a command that will securely erase disks using a variety of
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recognised methods. It is a fork of the dwipe command used by Darik's Boot
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and Nuke (dban). nwipe is included with partedmagic if you want a quick and
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easy bootable CD version. nwipe was created out of a need to run the DBAN
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dwipe command outside of DBAN, in order to allow its use with any host
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distribution, thus giving better hardware support. It is essentially the
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same as dwipe, with a few changes:
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.TP
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- pthreads is used instead of fork
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.TP
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- The parted library is used to detect drives
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.TP
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- The code is designed to be compiled with gcc
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.TP
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- SIGUSR1 can be used to log the stats of the current wipe
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.SH OPTIONS
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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Prints the version number
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Prints a help summary
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.TP
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\fB\-\-autonuke\fR
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If no devices have been specified on the command line, starts wiping all
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devices immediately. If devices have been specified, starts wiping only
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those specified devices immediately.
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.TP
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\fB\-\-sync\fR
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Open devices in sync mode
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.TP
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\fB\-\-noblank\fR
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Do not perform the final blanking pass after the wipe (default is to blank,
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except when the method is RCMP TSSIT OPS\-II).
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.TP
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\fB\-\-nowait\fR
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Do not wait for a key before exiting (default is to wait).
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.TP
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\fB\-\-nosignals\fR
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Do not allow signals to interrupt a wipe (default is to allow).
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.TP
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\fB\-\-nogui\fR
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Do not show the GUI interface. Can only be used with the autonuke option.
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Nowait option is automatically invoked with the nogui option.
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SIGUSR1 can be used to retrieve the current wiping statistics.
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.TP
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\fB\-\-verify\fR=\fITYPE\fR
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Whether to perform verification of erasure (default: last)
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.IP
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off \- Do not verify
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.IP
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last \- Verify after the last pass
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.IP
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all \- Verify every pass
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.IP
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Please mind that HMG IS5 enhanced always verifies the last (PRNG) pass
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regardless of this option.
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.TP
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\fB\-m\fR, \fB\-\-method\fR=\fIMETHOD\fR
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The wiping method (default: dodshort).
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.IP
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dod522022m / dod \- 7 pass DOD 5220.22\-M method
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.IP
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dodshort / dod3pass \- 3 pass DOD method
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.IP
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gutmann \- Peter Gutmann's Algorithm
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.IP
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ops2 \- RCMP TSSIT OPS\-II
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.IP
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random / prng / stream \- PRNG Stream
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.IP
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zero / quick \- Overwrite with zeros
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.IP
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verify \- Verifies disk is zero filled
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.IP
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is5enh \- HMG IS5 enhanced
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.TP
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\fB\-l\fR, \fB\-\-logfile\fR=\fIFILE\fR
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Filename to log to. Default is STDOUT
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.TP
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\fB\-p\fR, \fB\-\-prng\fR=\fIMETHOD\fR
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PRNG option (mersenne|twister|isaac)
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.TP
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\fB\-r\fR, \fB\-\-rounds\fR=\fINUM\fR
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Number of times to wipe the device using the selected method (default: 1)
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.TP
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\fB\-e\fR, \fB\-\-exclude\fR=\fIDEVICES\fR
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Up to ten comma separated devices to be excluded, examples:
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--exclude=/dev/sdc
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--exclude=/dev/sdc,/dev/sdd
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.SH BUGS
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Please see the GitHub site for the latest list
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(https://github.com/martijnvanbrummelen/nwipe/issues)
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.SH AUTHOR
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Nwipe is developed by Martijn van Brummelen <github@brumit.nl>
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.SH "SEE ALSO"
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.BR shred (1),
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.BR dwipe (1),
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.BR dd (1),
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.BR dcfldd (1),
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.BR dc3dd (1)
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