Outline for September 24, 2024

Reading: text, §1
Assignments: Homework 1, due October 8; Project selection, due Oct 10

1. Class overview
2. Basic components
   1. Confidentiality
   2. Integrity
   3. Availability
3. Threats
   1. Snooping
   2. Modification
   3. Masquerading; contrast with delegation
   4. Repudiation of origin
   5. Denial of receipt
   6. Delay
   7. Denial of service
4. Role of policy
   1. Example of student copying files from another
   2. Emphasize: policy defines security
   3. Distinguish between policy and mechanism
5. Goals of security
   1. Prevention
   2. Detection
   3. Recovery
6. Trust
   1. First problem: security mechanisms correctly implement security policy
   2. Second problem: policy does what you want; define secure, precise
7. Operational issues; change over time
   1. Cost-benefit analysis
   2. Risk analysis (comes into play in cost-benefit too)
   3. Laws and customs
8. Human Factors
   1. Organizational problems
   2. People problems (include social engineering)

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

ECS 235A, Computer and Information Security Version of September 25, 2025 at 6:25AM

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