Effective Cryptography

Learn Cryptography in a unique way

What you'll learn

Have an understanding of the fundamental concepts in cryptography

Have a comprehensive understanding of the mathematical concepts that contribute to modern cryptography

Have a detailed understanding of common cryptographic algorithms like DES, 3DES, AES, RSA, ECC, etc.

Have an understanding of what VPNs, TLS, S/MIME, Disk Encryption are and how they operate

Have an understanding of how PKI cryptosystems are used for secure communications

Requirements

1. Windows PC

2. Interest in information security and how to secure data

Description

This course is what you need to learn all about cryptography and level up on your skills in information security. With this course, you will understand and learn how to implement effective cryptography into systems and applications to protect data and secure communication. In today’s world, our lives and interactions with people require that we must communicate with others. Sometimes this communication will be with people we know and other times, with total strangers. What gives us comfort when we communicate with people we do not know? Is it that the information we provide is confidential and protected from unauthorized access or that we can have a level of trust for that stranger at the other end of the communication line? As we navigate this daily essential part of our lives, we need to have a level of assurance that our communications and data are secure and cryptography plays a very important role with this. Cryptography enables secure communication as it protects data in transit which is data sent over a communication medium like the internet for instance when we buy things from eBay or Amazon). It can also protect data at rest when data is stored on the hard disk of a computer or on a USB thumb drive. It is important to note that while cryptography is essential for secure communications, its implementation is most important as it can lead to a false sense of security if it is not implemented properly.

Overview

Section 1: Introduction

Lecture 1 Introduction

Lecture 2 What you will learn

Section 2: Basic Concepts

Lecture 3 Objectives

Lecture 4 What is the challenge with communication across an untrusted medium

Lecture 5 What is Cryptography

Lecture 6 Security by obscurity is not security

Lecture 7 Why learn Cryptography

Lecture 8 The key is the key

Lecture 9 Data Representation and Number System

Lecture 10 Prime Numbers

Lecture 11 Summary

Section 3: Cryptosystems

Lecture 12 Objectives

Lecture 13 Key terms related to cryptography

Lecture 14 Overview of Cryptology

Lecture 15 Modulo Functions

Lecture 16 Monoalphabetic and Polyalphabetic Ciphers

Lecture 17 Caesar Cipher

Lecture 18 Demo Caesar Cipher

Lecture 19 Vigenère Cipher

Lecture 20 Demo Vigenère Cipher

Lecture 21 The unbreakable cipher

Lecture 22 Goals of Cryptography

Lecture 23 Cryptosystems

Lecture 24 Keys

Lecture 25 Key Space

Lecture 26 Cryptography at a larger scale

Lecture 27 The challenge of secure communication

Lecture 28 XOR

Lecture 29 Encryption

Lecture 30 Decryption

Lecture 31 Summary

Section 4: Cryptographic Algorithms

Lecture 32 Objectives

Lecture 33 Types of Cryptosystems

Lecture 34 Symmetric Key Cryptosystem

Lecture 35 Techniques in Symmetric Encryption

Lecture 36 Stream Ciphers

Lecture 37 Block Ciphers

Lecture 38 Modes of Operation of Block Ciphers

Lecture 39 Block Cipher Primitives Confusion and Diffusion

Lecture 40 DES

Lecture 41 Weakness in DES

Lecture 42 DES is not a Group

Lecture 43 Meet in the Middle Attack

Lecture 44 Demo DES

Lecture 45 3DES

Lecture 46 AES

Lecture 47 AES Algorithm

Lecture 48 AES with CBC

Lecture 49 Demo AES

Lecture 50 Asymmetric Key Cryptosystem

Lecture 51 Problems with Symmetric Encryption

Lecture 52 Asymmetric Key Cryptosystems

Lecture 53 Mathematics behind Asymmetric Encryption

Lecture 54 Essential Number Theory for Public Key Algorithms

Lecture 55 Euclidean Algorithm

Lecture 56 Relative Prime Numbers

Lecture 57 Modular Exponentiation

Lecture 58 Multiplicative Inverse

Lecture 59 Main Use of Asymmetric keys

Lecture 60 Concepts in Cryptography

Lecture 61 Difficulty of Factoring a Large Integer into Its Two Prime Factors

Lecture 62 Difficulty of Solving the Discrete Logarithm Problem for Finite Fields

Lecture 63 Difficulty of Solving Discrete Logarithm Problem as Applied to Elliptic Curves

Lecture 64 RSA

Lecture 65 Basic Steps to Create an RSA Public Private Key Pair

Lecture 66 Elliptic Curve Cryptosystem

Lecture 67 Diffie-Hellman Key Exchange

Lecture 68 How does Diffie-Hellman work

Lecture 69 Demo Diffie-Hellman

Lecture 70 Hash Functions

Lecture 71 What is Collision in Hashing

Lecture 72 Use of Hash in Password

Lecture 73 MD5

Lecture 74 Secure Hash Algorithm

Lecture 75 Hash Based Message Authentication Code

Lecture 76 Summary

Section 5: Applying Cryptography

Lecture 77 Objectives

Lecture 78 Transport Layer Security

Lecture 79 Cipher Suite

Lecture 80 Typical Enterprise Network

Lecture 81 Virtual Private Networks

Lecture 82 VPN Advantages

Lecture 83 VPN Disadvantages

Lecture 84 Types of Remote Access VPN

Lecture 85 IP Security Protocol

Lecture 86 Authentication Header (AH)

Lecture 87 Encapsulating Security Payload (ESP)

Lecture 88 Security Associations (SA)

Lecture 89 Transport Mode

Lecture 90 Tunnel Mode

Lecture 91 IPsec Key Management

Lecture 92 SSL VPN

Lecture 93 VPN Components

Lecture 94 Watch that VPN

Lecture 95 Secure Email with SMIME

Lecture 96 Demo SMIME

Lecture 97 Full Disk Encryption

Lecture 98 Problem of Asymmetric Algorithms

Lecture 99 Public Key Infrastructure (PKI)

Lecture 100 Digital Certificates

Lecture 101 Certificate Authority (CA)

Lecture 102 Key Management and Certificate Lifecycle

Lecture 103 Use cases of PKI Certificates

Lecture 104 PKI Components

Lecture 105 Digital Signature

Lecture 106 Demo Digital Signatures

Lecture 107 Summary

1. Students taking cryptography as a course,2. Anyone interested in the field of information security