This is the command sdmem that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
sdmem - secure memory wiper (secure_deletion toolkit)
SYNOPSIS
sdmem [-f] [-l] [-l] [-v]
DESCRIPTION
sdmem is designed to delete data which may lie still in your memory (RAM) in a secure
manner which can not be recovered by thieves, law enforcement or other threats. Note that
with the new SDRAMs, data will not wither away but will be kept static - it is easy to
extract the necessary information! The wipe algorithm is based on the paper "Secure
Deletion of Data from Magnetic and Solid-State Memory" presented at the 6th Usenix
Security Symposium by Peter Gutmann, one of the leading civilian cryptographers.
The secure data deletion process of sdmem goes like this:
* 1 pass with 0x00
* 5 random passes. /dev/urandom is used for a secure RNG if available.
* 27 passes with special values defined by Peter Gutmann.
* 5 random passes. /dev/urandom is used for a secure RNG if available.
COMMANDLINE OPTIONS
-f fast (and insecure mode): no /dev/urandom.
-l lessens the security. Only two passes are written: the first with 0x00 and a final
random one.
-l -l for a second time lessons the security even more: only one pass with 0x00 is
written.
-v verbose mode
NOTE
This utility was originally called
smem but was renamed for debian to avoid name clashes with another package.
BEWARE
SLOW Wiping the memory is very slow. You might use sdmem with the -ll option. (tip)
BETA! sdmem is still beta.
Use sdmem online using onworks.net services
