[unisog] OT: Putting Encyption Functions in the HDDs
H. Morrow Long
morrow.long at yale.edu
Mon Apr 24 00:29:40 GMT 2006
An article last summer when the Seagate 5400 with FDE (Full Disk
came out says that they use Triple DES (to which some periodically
bit encryption to): http://www.pcworld.com/news/article/0,aid,
The Seagate data sheet on the Momentus 5400 FDE says the encryption is
TDEA 192 bit (which I'd take to be Triple Data Encryption Algorithm
aka Triple DES):
There are RSA symmetric algorithms with variable key bit lengths
(such as RC5)
but this 2.5 inch drive doesn't appear to use them (nor does it use
AES apparently --
the drive has crypto logic built in, I don't know if there is
upgradable firmware or
if there has been a follow-on product).
- H. Morrow Long, CISSP, CISM, CEH
University Information Security Officer
Director -- Information Security Office
Yale University, ITS
On Apr 23, 2006, at 6:36 PM, Alan Amesbury wrote:
> Saqib Ali wrote:
>> The article also describe how the Full Encryption Discs <
>> http://www.seagate.com/products/notebook/ >from Seagate Technology
>> work. Essentially they use RSA algorithm with 192-bit key.
> I don't read Japanese, so I'm relying on your description above.
> However, I'm pretty sure that 192-bit RSA keys are ridiculously weak.
> Perhaps that's supposed to be 192-bit AES?
> Alan Amesbury
> University of Minnesota
> unisog mailing list
> unisog at lists.sans.org
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