[ale] What does 256-bit AES-compliant, ATA Security Mode Features mean in the specs for a SSD?

[Jim Kinney]

Yes. This is hardware-based encryption. You can still run LUKS in it as
well but other than a general mistrust of closed-source encryption, why?

On Mon, Jun 25, 2012 at 6:28 PM, Scott Castaline <skotchman at gmail.com>wrote:

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> On 06/25/2012 05:34 PM, Jim Kinney wrote:
> > Drive makers are incorporating encryption in their drives. The idea
> > is that without the key, the contents are lost but the drive can be
> > reused by making a new key. This is bios/UEFI level stuff. Once
> > unlocked, the drive is unlocked until powered off.
> >
> > That said, to re-access the drive after a suspend or hibernation
> > will require a OS specific unlocking UI.
> >
>
> So, this is in lieu of software like LUKS?
> I assume then that access to it would be through the BIOS/UEFI?
>
> > On Mon, Jun 25, 2012 at 5:00 PM, Scott Castaline
> > <skotchman at gmail.com <mailto:skotchman at gmail.com>> wrote:
> >
> > This may seem like a dumb question, but while looking over specs
> > for various SSDs, I have come across a category of Data Encryption
> > with 256-bit AES-compliant, ATA Security Mode Features or similar.
> > What do they mean by this? Is this built in encrypting so one does
> > not need to use software encryption like LUKS?
> >
> > Also while I'm here, are there any compatibility issues in Linux
> > that I need to be aware of in deciding which SSD I should get? Any
> > recommendations? I'm looking at the OCZ Vertex 2 SATA III 2.5"
> >
> http://www.ocztechnology.com/ocz-vertex-4-sata-iii-2-5-ssd.html#specifications
> .
> >
> >
> >
> > I'd be very appreciative of any feedback or guidance you guys give
> > me.
> >
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> >
> >
> > -- -- James P. Kinney III //// ////Every time you stop a school,
> > you will have to build a jail. What you gain at one end you lose at
> > the other. It's like feeding a dog on his own tail. It won't fatten
> > the dog. - Speech 11/23/1900 Mark Twain ////
> > http://electjimkinney.org http://heretothereideas.blogspot.com/
> > ////
> >
> >
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-- 
-- 
James P. Kinney III
*
*Every time you stop a school, you will have to build a jail. What you gain
at one end you lose at the other. It's like feeding a dog on his own tail.
It won't fatten the dog.
- Speech 11/23/1900 Mark Twain
*
http://electjimkinney.org
http://heretothereideas.blogspot.com/
*
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