Outline for October 17, 2025

Reading: text, §11.2.3, 12.1, 12.4
Assignments: Homework 2, due October 22; Project selection, due November 7

1. Greetings and Felicitations!
   1. The final project and video is due on Tuesday, December 9 (the Canvas Term Project web page had it wrong)
   2. Thursday office hours changed to 12:10pm–1:00pm

2. Fast Exponentiation

3. Key exchange
   1. Public key; man-in-the-middle attacks
   2. The discrete log problem and Diffie-Hellman

4. Attacks
   1. Precomputation
   2. Misordered blocks
   3. Statistical regularities
   4. Type flaw

5. Networks and cryptography
   1. Link vs.end-to-end encryption

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

ECS 235A, Computer and Information Security Version of October 17, 2025 at 1:53PM

You can also obtain a PDF version of this.