Principles of Security

Cryptography - Introduction

8:22mins

Principles of Security

8:30mins

Security Attacks

11:36mins

A Basic Cryptographic System - Symmetric key/Private key system.

9:18mins

Symmetric Encryption, Caesar cipher

11:32mins

Multiplicative cipher - Encryption & decryption

12:50mins

Affine cipher - Encryption and Decryption

11:04mins

Playfair cipher

13:44mins

Playfair cipher - Problem.

14:40mins

Hill cipher with an example of 2x2 matrices.

11:26mins

Hill cipher decryption

14:27mins

Hill cipher - Example of 3x3 matrices - Encryption part.

10:30mins

Hill cipher - Example of 3x3 matrices - Decryption part.

14:24mins

Vignere's cipher - Encryption & decryption

8:57mins

Auto key cipher

10:53mins

Transposition ciphers- Rail fence & Columnar method

10:15mins

Columnar transposition with key & Double transposition cipher.

11:58mins

Route cipher

11:48mins

Cryptanalytic attacks

13:31mins

Rotor machines

10:47mins

Block ciphers

10:04mins

Block ciphers - Modes of Operation - Part 1

11:48mins

Block ciphers - Modes of Operation - Part 2

12:03mins

Data Encryption Standard - Part 1

14:43mins

Data Encryption Standard - Part 2

9:31mins

Advanced Encryption Standard (AES) - Part 1

12:45mins

Advanced Encryption Standard (AES) - Part 2

13:08mins

International Data Encryption Algorithm (IDEA)

11:52mins

Public key cryptography.

9:43mins

RSA Algorithm

13:19mins

Problem on RSA Algorithm.

8:15mins

Diffie Hellman Key Exchange Algorithm.

11:40mins

Gate questions on RSA and Diffie Hellman Key Exchange Algorithm

9:44mins

Elliptic Curve Cryptography (ECC)

12:06mins

Message authentication code

13:07mins

Hash functions

13:38mins

Digital Signature

10:29mins

Digital signature algorithm (DSA)

12:04mins

Gate questions on Digital Signature

12:44mins

Firewalls, Types of Firewalls

12:53mins