Lecture 21: May 14, 2021

Reading: text, §12.1–12.4, 12.5.3
Due: Homework 3, due May 21

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

2. Stream vs. block cipher

3. Authenticated encryption
   1. Galois counter mode (GCM)

4. Networks ad cryptography
   1. Link vs.end-to-end encryption

5. TLS security

Matt Bishop Office: 2209 Watershed Sciences Phone: +1 (530) 752-8060 Email: [email protected]

ECS 135, Computer Security Version of May 14, 2021 at 9:26AM

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