Software for the safe deletion of files?

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free-software
#1

Some open source software for the safe deletion of files, equal or similar to deleting in Gutmann 35 passes, so that the deleted files are unrecoverable.

Thank you

#2

There is BitKiller: OpenSource and deletes your files with 1, 3, 7 or even 35 Passes.


There is also an app called ‘Eraser’ wich is also quite common used in Linux distributions - in case you’d like a little more ‘activity’ for an app to trust it.

There is also an OS for USB-Boot for deleting files… but i can’t find it anymore.

#3

You can use shred via Termux.

#4

I am not shure if “safe-delete” is technically possible on sd-cards because the sd-card-memory-controller may translate the same logical-file-sector to different physical-file-sectors-on-every-write to increase lifetime of sd-card.

In other words: The number of sd-card-writes per sd-card-filesector is limited until the sector breaks.

So writing “0” to every used previously used filesector may not work as expected and might decrease lifetime of sd-card.

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