On Wed, 23 Jan 2008, Leichter, Jerry wrote:
well be prior art, but the idea of erasing information by deliberately
discarding a key is certainly not completely obvious except in
retrospect. If you look at any traditional crypto text, you won't
Hmm - it is commonly mentioned that (early)
In article [EMAIL PROTECTED] you write:
http://www.google.com/patents?vid=USPAT6993661
Gee, the inventor is Simson Garfinkel, who's written a bunch of books
including Database Nation, published in 2000 by O'Reilly, about all
the way the public and private actors are spying on us.
I wonder
can anyone please shed more light on this patent. It seems like a
patent on the simple process of cryptographic erase..
saqib
http://www.full-disk-encryption.net/wiki
On Jan 22, 2008 7:29 PM, Perry E. Metzger [EMAIL PROTECTED] wrote:
http://www.google.com/patents?vid=USPAT6993661
On 23 January 2008 04:45, Ali, Saqib wrote:
can anyone please shed more light on this patent. It seems like a
patent on the simple process of cryptographic erase..
As far as I can tell, they're describing a hardware pass-through OTF
encryption unit that plugs inline with a hard drive
John Levine [EMAIL PROTECTED] writes:
In article [EMAIL PROTECTED] you write:
http://www.google.com/patents?vid=USPAT6993661
Gee, the inventor is Simson Garfinkel, who's written a bunch of books
including Database Nation, published in 2000 by O'Reilly, about all the way
the public and private
| http://www.google.com/patents?vid=USPAT6993661
|
| Gee, the inventor is Simson Garfinkel, who's written a bunch of books
| including Database Nation, published in 2000 by O'Reilly, about all
| the way the public and private actors are spying on us.
|
| I wonder whether this was research to see
I wonder whether this was research to see how hard it
was to get the PTO to grant an absurd patent.
Get Simson's opinion, please. It is not insane to
patent something so that you can control its use
and to do so for reasons other than wanting to
lay about in the Caribbean/Vegas.
As
Our IBM cryptographic processors (HSMs) have been using this technique
since around 1996 - data that is stored in flash memory is encrypted with
a key that is destroyed on any attempt to tamper with the security module.
---
Todd W.
* Saqib Ali:
can anyone please shed more light on this patent. It seems like a
patent on the simple process of cryptographic erase..
Exactly. Niels Provos, Encrypting Virtual Memory, USENIX Security
2000, looks like something pretty close to prior art:
| We investigate several
Perry E. Metzger wrote:
http://www.google.com/patents?vid=USPAT6993661
Hat tip to a party who prefers to remain anonymous who sent me the
patent number.
Interesting. he patented E4M, then two years old or so...
-
The
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