Lecture 20: May 12, 2021

Reading: text, §11.2–11.4
Due: None yet; stay tuned

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

2. Key Generation
   1. Cryptographically random numbers
   2. Cryptographically pseudorandom numbers
   3. Strong mixing function

3. Cryptographic Key Infrastructure
   1. Certificates
   2. Merkle trees
   3. Certificate chains
   4. Certificate, key revocation

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

ECS 135, Computer Security Version of May 14, 2021 at 9:07AM

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