Acknowledgements: William Stallings.William Stallings All rights Reserved Session 2 Conventional Encryption (Part 2) Network Security Essentials Application.
Breaking Stuff: Cryptanalysis and Protocol Failures Wade Trappe.
Announcements: Homework 3 due now Homework 3 due now Homework 4 posted Homework 4 postedToday: Attacks on DES Attacks on DESQuestions? DTTF/NB479: DszquphsbqizDay.
Lecture 5 Overview Does DES Work? Differential Cryptanalysis Idea – Use two plaintext that barely differ – Study the difference in the corresponding.