Security Basics mailing list archives

Re: Why not encrypt the whole Hard Drives?


From: "Saqib Ali" <docbook.xml () gmail com>
Date: Fri, 3 Nov 2006 15:38:37 -0800

OK, the review of the 7 Full Disk Encryption is now complete. The
results are at:
http://www.xml-dev.com/blog/index.php?action=viewtopic&id=250

I did an analysis of various FDE solutions to find the best one for my
needs. The key thing I was interested was that it must be AES 256,
reasonably fast, inexpensive, and offer key recovery in case of
password loss.

Compusec is great for home / personal use. It is cheap i.e. $0.00
(Free), and does not slow down the computer as much as the other
products. But that is because it only support 128 bit AES, which is a
major drawback as most enterprise settings require at least 256 bit
AES. Compusec also has a great online support forum where you can get
your questions answered by Compusec employees and other experienced
users.

I ended up purchasing both Utimaco and Pointsec. They are excellent
products. They both support AES 256. The downside is that they are
little bit expensive (Pointsec:$170 ; Utimaco:$200) and slow.

The best thing is they both offer great password / encryption key
recovery capabilities. You can create a recovery disk with both
products.

They also offer password recovery using Challenge / Response sequence,
where the IT Helpdesk can perform a Challenge/Response sequence with
the user to help them recover the password or reset it to a new one.
Off course Challenge/Response password recovery is the NOT most
secure, especially if the user is remote, but you have the option to
disable it on the laptop if you want.
.

saqib
http://www.full-disk-encryption.net


On 11/1/06, Jason Muskat, GCFA, GCUX, de VE3TSJ <Jason () techdude ca> wrote:
Hello,

We deployed FDE on every laptop (about 150) in the organization I work for
including my own. The FDE software installs itself on every drive wished
including the boot drive "c:" and requires the use of a pre-boot-loader
before Windows is loaded.

I found no discernible speed difference. The pre-boot-loader is very
transparent to Windows.

The only issues I have come across is one HDD became corrupted. Windows
Automated Recovery would have easily fixed this issue. Due to an Admin
oversight an Admin Key, which allows one to boot a CD from the FDE
boot-loader, was missing. At that point the drive became very difficult to
recover. So much, it was low-level formatted and backups were restored to a
new drive.

Key Management is easy but very procedure driven. If parts of the procedure
are skipped issues such as a simple disk recovery become very difficult.

Regards,

--
Jason Muskat  | GCFA, GCUX - de VE3TSJ
____________________________
TechDude
e. Jason () TechDude Ca
m. 416 .414 .9934

http://TechDude.Ca/


> From: Saqib Ali <docbook.xml () gmail com>
> Date: Thu, 12 Oct 2006 15:00:28 -0700
> To: security-basics <security-basics () securityfocus com>
> Subject: Why not encrypt the whole Hard Drives?
> Resent-From: <security-basics-return-41391 () securityfocus com>
> Resent-Date: Fri, 13 Oct 2006 12:51:58 -0600 (MDT)
>
> Security Breaches Data reveals that most of the data leaks were caused
> due to stolen laptops, which can be easily mitigated by using full
> disk encryption on the laptop. So why not encrypt the whole drive?
> Cost and performance impact are the usual arguments. Tests show that
> access time increases by 56%-85% after encryption. And the cost of FDE
> software usually ranges from $0-$300 depending on how good of a
> software and support you wanna get. So is it worth it?
>
> Data from tests (performance impact) of the FDE products:
> http://www.xml-dev.com/blog/index.php?action=viewtopic&id=250
>
> --
> Saqib Ali, CISSP, ISSAP
> http://www.full-disk-encryption.net
>
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--
Saqib Ali, CISSP, ISSAP
http://www.full-disk-encryption.net

---------------------------------------------------------------------------
This list is sponsored by: Norwich University

EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
The NSA has designated Norwich University a center of Academic Excellence in Information Security. Our program offers unparalleled Infosec management education and the case study affords you unmatched consulting experience. Using interactive e-Learning technology, you can earn this esteemed degree, without disrupting your career or home life.

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