Notes 3: Symmetric Cryptography Part II

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CS458: Introduction to Information Security- Lecture 6 - Spring 2022
Data Encryption Standard (DES)
- Initial and final permutations
- Expansion Permutation Box
- Add Round Key
- S-Boxes
- Week, semi, possibly Wet Keys
Double and Triple DES
Meet-in-the-Middle Attack
  1. Yousef Elmehdwi
  2. Data Encryption Standard (DES)
  3. Initial and final permutations
  4. Expansion Permutation Box
  5. Add Round Key
  6. S-Boxes
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