Cryptography and Network Security

Computer Science

2023-12-07

Lessons List

Introduction to Cryptography and Network Security

CIA Triad

The OSI Security Architecture

Security Attacks

Security Services

Security Mechanisms

Network Security Model

Cryptography

Cryptography – Key Terms

Cryptanalysis

Brute Force Attack

Classical Encryption Techniques

Caesar Cipher Part 1

Caesar Cipher Part 2

Monoalphabetic Cipher

Playfair Cipher Part 1

Playfair Cipher Part 2

Playfair Cipher Solved Question

Hill Cipher Encryption

Hill Cipher Decryption

Polyalphabetic Cipher Vigenère Cipher

Polyalphabetic Cipher Vernam Cipher

One Time Pad

Rail Fence Technique

Row Column Transposition Ciphering Technique

Steganography

LSB Steganography Demo

Cryptography Solved Questions

Abstract Algebra and Number Theory

Prime Numbers in Cryptography

Modular Arithmetic Part 1

Modular Arithmetic Part 2

Modular Exponentiation Part 1

Modular Exponentiation Part 2

GCD Euclidean Algorithm Method 1

GCD Euclidean Algorithm Method 2

Relatively Prime Co Prime Numbers

Euler s Totient Function Phi Function

Euler s Totient Function Solved Examples

Fermat s Little Theorem

Euler s Theorem

Primitive Roots

Multiplicative Inverse

Extended Euclidean Algorithm Solved Example 1

Extended Euclidean Algorithm Solved Example 2

Extended Euclidean Algorithm Solved Example 3

The Chinese Remainder Theorem Solved Example 1

The Chinese Remainder Theorem Solved Example 2

The Discrete Logarithm Problem

The Discrete Logarithm Problem Solved Example

Prime Factorization Fermat s Factoring Method

Testing for Primality Fermat s Test

Testing for Primality Miller Rabin Test

Group and Abelian Group

Cyclic Group

Rings Fields and Finite Fields

Stream Cipher vs Block Cipher

Feistel Cipher Structure

Introduction to Data Encryption Standard DES

Single Round of DES Algorithm

The F Function of DES Mangler Function

Key Scheduling and Decryption in DES

Avalanche Effect and the Strength of DES

Data Encryption Standard DES Solved Questions

Introduction to Advanced Encryption Standard AES

AES Encryption and Decryption

AES Round Transformation

AES Key Expansion

AES Security and Implementation Aspects

Multiple Encryption and Triple DES

Block Cipher Modes of Operation

Electronic Codebook ECB

Cipher Block Chaining CBC

Cipher Feedback CFB

Output Feedback OFB

Counter Mode CTR

Block Cipher Modes of Operation Solved Question

Pseudorandom Number Generator PRNG

Golomb s Randomness Postulates

Public Key Cryptography | Chapter 4 | Cryptography Network Security | nesoacademy org

Hash Functions Digital Signatures | Chapter 5 | Cryptography Network Security | nesoacademy org

System Practices System Security | Chapter 6 | Cryptography Network Security | nesoacademy org

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Sushma Patil

Good session 2025-04-24

Taniha S

good 2025-04-24

SINDHU.T

very good and informative course 2025-04-22

Sharath K m

GUD 2025-04-21

Tanushree R

It was very useful videos with clear explanation 2025-04-21

arash1314

This course is very good and excellent, without any flaws or defects. I learned the basic and advanced concepts of cryptography well with this course and recommended it to those around me. 2025-03-18

Uttam Kumar

GOOD 2024-12-05

G B PAWAN REDDY

GOOD 2024-12-03

Kiran Yadav

good 2024-09-03

Dinesh Kumar. T

I am very excited to get my certificate for free. Thank you for giving me such a beautiful platform. 2024-05-09

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Cryptography and Network Security course, in this course Explore the core principles and techniques of cryptography, securing data through encryption and decryption methods

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