Re: NT 5.0 and EFS -- A victory for widespread use of crypto?

[Adam Shostack <adam@homeport.org>]

On Wed, Oct 07, 1998 at 06:06:21PM -0500, Steve Dunlop wrote:

| The white paper on the MSDN web site says it uses
| DESX (no explaination as to what the X is) and an
| RSA public key algorithm to store the symmetric keys,
| which are random for each file.
| 
| So what's DESX?

DESX is where you xor the output of a des block with the key.  Has
some interesting properties which McCurley? showed in Crypto 97
proceedings.

Adam


-- 
"It is seldom that liberty of any kind is lost all at once."
					               -Hume