From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <20010926173932.25052.qmail@g.bio.cse.psu.edu>
To: 9fans@cse.psu.edu
From: Scott Schwartz <schwartz@bio.cse.psu.edu>
Subject: [9fans] authorization schemes (was CORBA)
Date: Wed, 26 Sep 2001 13:39:32 -0400
Topicbox-Message-UUID: f4d60c38-eac9-11e9-9e20-41e7f4b1d025

| > ? would be Doug McIlroy and 'The IX Multilevel Secure Operating System'
| > CSTR #163 is available in pieces at http://cm.bell-labs.com/cm/cs/cstr.html.
|
| that'd be it.  iirc they added a chunk of bit vectors to just about
| everything and used simple bitwise operations to implement the security
| with a tiny performance hit.

The best part (cf a paper in Usenix Computing Systems) was that they
caught a virus that someone else accidently unleashed.