This is what I am doing currently<p># openssl enc -aes-256-ctr -pass pass:&quot;$(dd if=&#x2F;dev&#x2F;urandom bs=128 count=1 2&gt;&#x2F;dev&#x2F;null | base64)&quot; -nosalt &lt;&#x2F;dev&#x2F;zero \
    | pv -bartpes &lt;DISK_SIZE&gt; | dd bs=64K of=&#x2F;dev&#x2F;sd&quot;X&quot;<p>To randomize the drive&#x2F;partition using a randomly-seeded AES cipher from OpenSSL (displaying the optional progress meter with pv): <a href="https:&#x2F;&#x2F;wiki.archlinux.org&#x2F;index.php&#x2F;Securely_wipe_disk&#x2F;Tips_and_tricks#dd_-_advanced_example" rel="nofollow">https:&#x2F;&#x2F;wiki.archlinux.org&#x2F;index.php&#x2F;Securely_wipe_disk&#x2F;Tips...</a><p>Then I take out the drill press and make a bunch of holes.