Un outil en ligne de commande sous LInux pour effacer intégralement des disques durs avant de s'en séparer (ou de les jeter) : nwipe. Il s'agit d'un fork de dwipe.

Exemples de méthodes d'effacement :

The user can select from a variety of recognised secure erase methods which include:
- Fill With Zeros - Fills the device with zeros (0x00), one round only.
- Fill With Ones - Fills the device with ones (0xFF), one round only.
- RCMP TSSIT OPS-II - Royal Candian Mounted Police Technical Security Standard, OPS-II
- DoD Short - The American Department of Defense 5220.22-M short 3 pass wipe (passes 1, 2 & 7).
- DoD 5220.22M - The American Department of Defense 5220.22-M full 7 pass wipe.
- Gutmann Wipe - Peter Gutmann's method (Secure Deletion of Data from Magnetic and Solid-State Memory).
- PRNG Stream - Fills the device with a stream from the PRNG.
- Verify Zeros - This method only reads the device and checks that it is filled with zeros (0x00).
- Verify Ones - This method only reads the device and checks that it is filled with ones (0xFF).
- HMG IS5 enhanced - Secure Sanitisation of Protectively Marked Information or Sensitive Information

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