What you'll learn

Crack any security system
Understand and crack the modern AES cryptosystem
Understand and crack the modern RSA cryptosystem
Understand the new cryptosystem on Elliptic Curves
Understand modern 21st century security
Learn why old cryptosystems are vulnerable to attacks
Create unique cryptosystems that are completely secure
Learn number theoretic mathematics

Course content

6 sections • 39 lectures • 4h 51m total length

Introduction Video1:17

Caeser Cipher (Shift Cipher)10:00
Learn how to encrypt and decrypt the Ceaser Cipher and learn why it is a weak cryptosystem
Examples of the Ceaser Cipher and How to Crack6:03
See some examples on the Shift Cipher and learn how to hack it without knowing the key
Shift Cipher Reading and Exercises2:00
Affine Cipher9:31
Learn how to encrypt and decrypt the Affine Cipher and why it is so much stronger than the shift cipher and learn about frequency analysis and why it is so useful in attacking old cryptography
Examples of the Affine Cipher and How to Crack7:25
Learn how to use online calculators for frequency analysis and how to use that to crack the Affine cipher without the key
Affine Cipher Reading and Exercises3:00
Vigenere Cipher6:34
Learn what a block cipher is and why they are so much more secure, and learn how to crack the Vigenere cipher without the key
Examples of the Vigenere Cipher and How to Crack9:06
See some examples of encrypting and decrypting the Vigenere cipher and see how to find the key length (which would then crack the system entirely)
Vigenere Cipher Reading and Exercises1:00
Playfair Cipher10:38
Understand how the Playfair cipher works and why it is so fun and secure
Examples of Playfair Cipher and How to Crack6:11
Watch a more visually appealing lecture on the Playfair cipher and examine the weaknesses
Playfair Cipher Reading and Exercises2:00
Rail Fence Reading and Exercises1:00
Hill Cipher Reading and Exercises2:00
Trifid Cipher Reading and Exercises2:00

The AES Cryptosystem13:05
Completely understand the AES Cryptosystem (each step) and learn why it is so secure and used today. Learn how to encrypt a message
AES RoundKey Addition16:01
How to Encrypt/Decrypt AES and Where to Find AES on Your Computer10:17
Watch a more visually appealing lecture on how to encrypt using the AES cryptosystem and see applications of it on your wireless router and wireless connection (we will show using Windows 7)
The RSA Cryptosystem and How to Crack12:40
Understand the most modern cryptosystem today: the RSA cryptosystem. Learn how to encrypt, decrypt and attack it without the key. Understand what a public key cryptosystem is and why it is so secure. Learn the strength behind factorization and why it is a problem that we can bet our crpytosystems on. Find out why knowing how to attack the cryptosystem still makes it secure.
Where to Find RSA Cryptosystems on Your Computer9:28
Learn the ins and outs of the RSA cryptosystem and where it is used on the internet (We use a Bank of America example and see their RSA cryptosystem) and see how big security is today
RSA Cryptosystem Reading and Exercises3:00
El Gamal Reading and Exercises2:00
Introduction to Elliptic Curve Cryptography (Extremely Modern)10:30
In this lecture, we introduce the most modern cryptosystem: elliptic curve cryptography. See where its applied today and why it is not as widely used yet (but likely will be within the next decade).

Requirements

Basic Algebra
For AES (which can be skipped), a good idea of how to multiply matrices is helpful
Motivation

Description

In this course, you will learn all of the old and modern security systems that have been used and are currently being used. You also learn how to crack each one and understand why certain security systems are weak and why others are strong. We will even go into RSA, AES and ECC which are the three main modern cryptography systems used today.

Learn How to Crack the Code!

Advanced Encryption Standard
Public Key Cryptosystems (ie RSA)
Elliptic Curve Cryptography
Modern Cryptographic Security
Advanced Mathematical Techniques

Master the Art of Security!

Security is a very important tool, and the ability to use mathematics to hide information is vital to the world. See how our banks and even the National Security Agency (NSA) keeps their data secure. With the knowledge of this course, you can even apply for security jobs at places like the NSA! This is a course that is rarely taught in Universities, so take advantage and start today!

Most of today's security is based upon RSA, and AES but the NSA is trying to push Elliptic Curve Cryptography since it is more secure than RSA. In this course, we learn all of these cryptosystems and their weaknesses. We give examples of every cipher that we cover. Only a small number of people currently understand these systems, and you can join them. The best part of this course is the fun in breaking the codes. We offer many examples of each cryptosystem and how to break each one.

Even as you are reading this, your https:// at the top says that the RSA Algorithm is successfully keeping your information from flooding the internet. You can find out how it all works and the mathematical structures that keep it secure in this course. So what are you waiting for?

Who this course is for:

Anyone interested in computers and security
Anyone who wants to work at the National Security Agency
Anyone who understands a little about mathematics
Anyone who wants to understand why certain systems are secure

What you'll learn

Explore related topics

Course content

Introduction Video1 lecture • 1min

Introduction2 lectures • 12min

Number Theory Lectures That Might Help12 lectures • 2hr 19min

Old Cryptography15 lectures • 1hr 18min

Modern Cryptography8 lectures • 1hr 17min

Conclusion1 lecture • 1min

Requirements

Description

Who this course is for: