[dm-crypt] (OT) Secure data wipe

jugree at lavabit.com jugree at lavabit.com
Sun Dec 9 12:20:14 CET 2012


How to securely delete data from a hard drive? Is it possible without
physical destruction?

How to work with sensitive data if you're using swap? Is it enough to
run `swapoff', decrypt some data, encrypt it again, and run `swapon'?

Is it possible to securely delete a single file? I've heard that you
should create another file with the same name, write some data to it,
and delete it.

This is a popular topic, but it's really hard to find any proofs.

Can you suggest any books or papers on the subject?

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