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Symmetric Cryptography Essential Training

Offered By: LinkedIn Learning

Tags

Symmetric Cryptography Courses Encryption Courses Block Ciphers Courses Stream Ciphers Courses

Course Description

Overview

Get an overview of symmetric cryptography, an important information security tool for encrypting data.

Syllabus

Introduction
  • Cryptography is everywhere
  • Basic terminology
1. Symmetric Cryptography
  • Cryptography's role
  • Kerckhoffs's principle
  • Symmetric keys
  • Block vs. stream ciphers
2. Representing and Manipulating Binary Data
  • Binary representation
  • Characters
  • Integers
  • Floating point numbers
  • Boolean logical operations
  • Padding
3. Fundamental Algorithms and Components
  • Simple substitution ciphers
  • Polyalphabetic substitution ciphers
  • Permutation and transposition ciphers
  • Simple one-time pads with XOR
  • S-Box and P-Box
  • Feistel ciphers
  • Linear-feedback shift registers (LFSRs)
4. Symmetric Algorithms
  • The Data Encryption Standard (DES)
  • The Advanced Encryption Standard (AES)
  • AES and DES in practice
  • The RC4 stream cipher
5. Block Cipher Modes
  • Introduction to block cipher modes
  • Cipher block chaining (CBC)
  • CFB: Cipher feedback
  • OFB: Output feedback
  • CTR: Counter
Conclusion
  • Next steps

Taught by

Jeremy A. Hansen

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