9fans archive / 2001 / 09 / 359 /    prev next

From: Scott Schwartz <schwartz@bio...>
Subject: [9fans] authorization schemes (was CORBA)
Date: Wed, 26 Sep 2001 13:39:32 -0400

| > ? 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.