Cryptography systems/common key cipher systems

Code No
Skill Category No: 
7
Skill No: 
1
Topic No: 
2
Level: 
II
Objective: 

Introducing the symmetric key encryption, knowing its basic concepts, features, advantages and disadvantages, understanding its mechanisms

Prerequisite:

  • Finite field.
  • Linear Feedback Shift Register (LFSR)
     

 

  • Introduction
  • Pseudorandom bits and sequences
  • Stream ciphers
    • Feedback shift registers
    • Stream ciphers based on LFSRs
    • Other stream ciphers
  •  Block ciphers
    • Classical ciphers and historical development
    • DES and AES
    • RC5, IDEA and other block ciphers
  •  Some known attacks