



















Preview text:
4. DES TẠI MỖI ROUND: H M DES: EXPANSION PBOX: KEY GENERATION: 5. AES 5.1 . AES CIPHER a. AES CIPHER ARCHITECTURE
• BLOCK TO STATE AND STATE TO BLOCK TRANSFORMATION • STRUCTURE OF EACH ROUND b. AES PRINCIPLE • SUBSTITUTION - SUBBYTES
- TRANSFORMATION USING GF (28) • PERMUTATION - SHIFTROWS • MIXING • KEY – ADDING c. KEY EXPANSION KEY EXPANSION IN AES 128 5.2 . AES CIPHER DESIGN a. ORIGINAL DESIGN b. ALTERNATIVE DESIGN
6. INTRODUCTION TO PUBLIC KEY CRYPTOGRAPHY 6.1. PUBLIC KEY a. SYSTEM STRUCTURE
7 . RSA CRYPTOGRAPHY 7.1. SYSTEM MODEL 7.2. RSA CRYPTOGRAPHY 7.3 . SUMMARIZED EXAMPLE 8. HASH FUNCTION 8.1. INTRODUCTION 8.2. HASH FUNCTION SCHEME 8.3 . SHA-512 a. ALGORITHM STRUCTURE b. PRINCIPLE