[CentOS] self-encrypting drives
heinlein at madboa.com
Sun Sep 23 15:12:05 UTC 2012
On Sun, 23 Sep 2012, Leonard den Ottolander wrote:
> As the interface for encrypting and locking an SED appears to be the
> same as for locking a normal drive using the security commands from
> hdparm should in theory work. This is assuming the BIOS pads
> passwords that are smaller than 32 bytes the same way as hdparm
> does, which is with NUL bytes.
> Hdparm currently only accepts passwords as strings, so if the BIOS
> uses binary/hex strings for the password it could be problematic to
> unlock the same drive with hdparm. It should be quite simple to
> patch hdparm to accept hex strings as passwords though.
> I have used drive (un)locking with hdparm on USB drives so
> (un)locking an external SED should be possible.
Interesting. I'd never investigated hdparm as a drive-password
interface. I'll certainly keep that in mind.
Paul Heinlein <> heinlein at madboa.com <> http://www.madboa.com/
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