March 31, 2025 Outline

Reading: text, §1, 2, 20.1.2.2
Assignments: Homework #1, due April 14; Project selection, due April 16

Module 1

1. Introduction to class
   1. General information
   2. Homework
   3. Handouts

2. The basic components of security

3. Reference monitors and security policy

4. Access control matrix and entities
   1. Subject, objects (includes subjects)
   2. State is (S, O, A) where A is access control matrix
   3. Rights (represent abstract notions)
5. Instantiating access control matrices
   1. Example: UNIX file system
      1. read, write, execute on files
      2. read, write, execute on directories
6. Access control matrix and entities
   1. Example: Boolean expressions
   2. Example: History and limiting rights

Matt Bishop Office: 2209 Watershed Sciences Phone: +1 (530) 752-8060 Email: mabishop@ucdavis.edu

ECS 235B, Foundations of Computer and Information Security Version of March 30, 2025 at 5:53PM

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