Reading: text, §4; [War70] Due: Homework 3, on May 9
Greetings and felicitations!
Midterm is Tuesday, May 2, in class
Homework 3 is available and is due in 2 weeks, on May 9.
Policy
Sets of authorized, unauthorized states
Secure systems in terms of states
Mechanism vs. policy
Types of Policies
Military/government vs. confidentiality
Commercial vs. integrity
Types of Access Control
Mandatory access control
Discretionary access control
Originator-controlled access control
Attribute-based access control
High-level policy languages
Characterization
Example: Ponder
Low-level policy languages
Characterization
Example: tripwire configuration file
Policies in natural language
Discussion question. Bureaucracies have their own version of the English language with which you must become familiar. To help you do so, here are some common phrases. See if you can translate them.
Scintillate, scintillate, asteroid minikin.
Members of an avian species of identical plumage congregate.