Computer Security 1 Computer Security 2

Computer Security 1

Computer Security 2

Notation Computer Security 3

Session, Interchange Keys Computer Security 4

Benefits Computer Security 5

Key Exchange Algorithms Computer Security 6

Classical Key Exchange Computer Security 7

Simple Protocol Computer Security 8

Problems ? Computer Security 9

Needham-Schroeder Computer Security 10

Argument: Alice talking to Bob Computer Security 11

Argument: Bob talking to Alice Computer Security 12

Denning-Sacco Modification Computer Security 13

Problem & Solution Computer Security 14

Needham-Schroeder with Denning-Sacco Modification Computer Security 15

Needham-Schroeder with Denning-Sacco Modification Computer Security 16

Otway-Rees Protocol Computer Security 17

The Protocol Computer Security 18

Argument: Alice talking to Bob Computer Security 19

Argument: Bob talking to Alice Computer Security 20

Computer Security 21

Kerberos Computer Security 22

Idea Computer Security 23

Computer Security 24

Authenticator Computer Security 25

Computer Security 26

Computer Security 27

Computer Security 28

Analysis Computer Security 29

Computer Security 30

Key Exchange using Public Key Computer Security 31

Problem and Solution Computer Security 32

Notes Computer Security 33

Computer Security 34

Key Generation Computer Security 35

What is “Random”? Computer Security 36

What is “Pseudorandom”? Computer Security 37

Best Pseudorandom Numbers Computer Security 38

Computer Security 39

Computer Security 40

Computer Security 41