[24582] in Cypherpunks
Re: Why I have a 512 bit PGP key
daemon@ATHENA.MIT.EDU (Thomas Grant Edwards)
Wed Dec 28 17:52:54 1994
Date: Wed, 28 Dec 1994 17:26:44 -0500 (EST)
From: Thomas Grant Edwards <tedwards@src.umd.edu>
To: Jeff Barber <jeffb@sware.com>
Cc: Eric Hughes <eric@remailer.net>, cypherpunks@toad.com
In-Reply-To: <9412281640.AA09644@wombat.sware.com>
On Wed, 28 Dec 1994, Jeff Barber wrote:
> Let's face it, creating the compiler-to-recognize-MD5 is quite a difficult
> problem, and if I were your system administrator and wanted to obtain
> access to your files, creating a special compiler version or otherwise
> attempting to cause your integrity check to fail would be one of the last
> forms of attack I'd try.
Infact you'd need a totally secure OS to try to achieve this goal. You
can have the loader recognize the MD5 or other integrity measures. The
loader could even contact an authorization server to see if you have paid
the license fee to use the program...
-Thomas
