Cryptography And System Security

What you'll learn
Substitution techniques: Caesar Cipher, Affine Cipher, Vigenere cipher, Playfair cipher
Transposition techniques: Keyed and Keyless transposition ciphers
Diffie Hellman Key Exchange Algorithm
Man in the Middle Attack Example
Key Distribution Center (KDC)
Public Key Cryptosystem: RSA Algorithm and its examples
Requirements
Mathematics
Description
These courses is designed to bridge the gap between theoretical cryptography and its practical applications in securing digital communications.In the RSA algorithm section, learners are introduced to the foundations of public key cryptography, exploring the RSA algorithm's key generation, encryption, and decryption processes. The course breaks down the complex mathematical concepts underlying RSA, such as prime number theory and modular arithmetic, and provides solved examples to illustrate how RSA secures data transmission.The Diffie-Hellman segment delves into the mechanism of secure key exchange over an insecure channel, explaining the mathematical principles that enable this process. It offers practical examples of how Diffie-Hellman is implemented in cryptographic protocols, emphasizing the algorithm's significance in ensuring secure communications.Additionally, the course covers MitM attacks, where it elaborates on how attackers intercept communications between two parties to eavesdrop or manipulate messages. Through real-world examples, it showcases the techniques employed in MitM attacks and discusses prevention strategies, underscoring the importance of encryption and secure communication practices.These courses combines theoretical knowledge with practical exercises, including solved examples, to equip students with the skills needed to navigate the complex landscape of cybersecurity and cryptography.The content focusing on the RSA algorithm, Diffie-Hellman key exchange, and Man in the Middle (MitM) attacks
Overview
Section 1: Cryptography and Different Types of Ciphers with example
Lecture 1 Cryptography and its categories
Lecture 2 Different types of ciphers - Substitution Cipher
Lecture 3 Caesar Cipher and Generalized Caesar Cipher
Lecture 4 Caesar Cipher Example 2
Lecture 5 Affine Cipher
Lecture 6 Playfair Cipher
Lecture 7 Playfair Cipher Example
Lecture 8 Vigenere Cipher: Vigenere Table Method
Lecture 9 Vigenere Cipher: Keyword Method
Lecture 10 Transposition Cipher: Keyless Transposition Cipher
Lecture 11 Transposition Cipher: Keyed Transposition Cipher
Section 2: Symmetric and Asymmetric Key Cryptography
Lecture 12 Key Distribution Center (KDC)
Lecture 13 Diffie Hellman Key Exchange Algorithm
Lecture 14 Diffie Hellman Example
Lecture 15 RSA Algorithm-Steps
Lecture 16 RSA Example1
Lecture 17 RSA Example 2
Lecture 18 RSA Example 3
Lecture 19 Man in the Middle Attack Example
Engineering, Diploma , BSc, MSc

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